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221 results about "Surface display" patented technology

Ligand discovery and gene delivery via retroviral surface display

Disclosed herein are compositions of retroviruses and methods of using the same for gene delivery, wherein the retroviruses comprise a viral envelope protein comprising at least one mutation that diminishes its native function, a non-viral membrane-bound protein comprising a membrane-bound domain and an extracellular targeting domain.
Owner:MASSACHUSETTS INST OF TECH

Display panel and display device

The utility model provides a display panel and a display device, relates to the technical field of display, and solves the problem of light leakage at four corners of a curved surface display product during display due to bending stress in the bending process of the curved surface display product. The display panel comprises a liquid crystal box, a first polaroid and a second polaroid. The liquid crystal box comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are oppositely arranged, and the liquid crystal layer is located between the first substrate and the second substrate. The first polaroid is located on the side, back on to the liquid crystal box, of the first substrate. The second polaroid is located on the side, back on to the liquid crystal box, of the second substrate. The thickness of the second polaroid is greater than that of the first polaroid; and the display panel is a curved display panel which is bent towards the second polaroid.
Owner:BOE TECHNOLOGY GROUP CO LTD +1

Polymer-degrading enzymes using yeast display and methods of use thereof

Provided herein are cells, compositions, and methods for identifying enzyme mutants having increased activity in cleaving synthetic polymers. The methods employ high-throughput cell surface display and directed evolution for rapidly assessing millions of enzyme mutants.
Owner:WISCONSIN ALUMNI RES FOUND

Multi-surface display traffic signal lamp

A multi-surface display traffic signal lamp disclosed by the present application comprises a lamp pole and a rotating door, the lamp pole comprises a top plate, a first side plate, a second side plate, a third side plate, a fourth side plate and a bottom flange, the first side plate and the second side plate are both provided with subtitle display units, and the first side plate and the second side plate are both provided with a plurality of mounting through holes. At least one of all the mounting through holes is provided with a lamp holder unit, and at least one of all the mounting through holes is provided with a baffle unit. According to the traffic signal lamp, the mounting through holes are formed in the first side plate and the second side plate and used for mounting the lamp holder unit, so that two-side display is achieved, two intersections can be indicated, the mounting through holes which are not used are shielded by the baffle unit, and meanwhile the baffle unit is shielded by the shielding cover. The lamp holder units installed at the installation through holes can be adjusted, the signal lamp is convenient to expand and upgrade in the later period after being installed, and adaptability and flexibility of the signal lamp are improved.
Owner:JIANGSU YUNDA TRAFFIC LIGHTING CO LTD

Display compensation method and system of curved surface display panel

The invention relates to the technical field of curved surface display, and discloses a display compensation method and system of a curved surface display panel. The method comprises the following steps: acquiring original brightness data of the curved surface display panel at different visual angles, and establishing a compensation reference library containing an incidence relation between a brightness attenuation gradient and a curvature radius; dividing a main compensation area, a transition compensation area and an edge compensation area according to the reference library, and determining the compensation intensity grade of each area; a dynamic compensation strategy containing a brightness decay prediction model and a color coordinate offset correction model is configured for the main compensation area; after generating an initial compensation parameter set based on the strategy, verifying the effectiveness through curved surface deformation simulation; and if the verification is passed, the parameter set is loaded to the display driving chip, and compensation is completed. According to the method, through accurate reference library construction, refined region division, a dynamic compensation strategy and comprehensive simulation verification, the display consistency of the curved surface display panel is effectively improved, the display quality under different visual angles is improved, and the method is suitable for various curved surface display devices.
Owner:SHENZHEN STARTEK ELECTRONICS TECH CO LTD

Injection mold for display panel production

The utility model discloses an injection mold for producing a display panel. The injection mold comprises a top plate, a pouring nozzle, an upper mold plate, a lower mold plate, a bottom plate, an ejector pin mechanism and an ejector pin plate, a mold cavity insert is arranged at the bottom of the upper mold plate, a mold core insert is arranged at the top of the lower mold plate, and two symmetrically arranged molding holes are formed between the mold cavity insert and the mold core insert. According to the utility model, the two symmetrically arranged molding holes are arranged in the injection mold, so that the injection mold can simultaneously produce two curved-surface display panels during one-time mold opening and closing, and the production efficiency is high; meanwhile, the cross section of the mold core insert is of a V-shaped structure, and the middle part of the mold core insert is provided with the pouring channel for communicating the two forming holes, so that the molten plastic raw material can be uniformly conveyed and filled in the forming holes, and the mold core insert of the V-shaped structure can increase the flowing resistance of the plastic raw material so as to slow down the flowing speed of the plastic raw material; therefore, bubbles are reduced, and the product quality is improved.
Owner:SHENZHEN UNIGREAT TECH CO LTD

Display module and display device

The invention provides a display module and a display device. The display module comprises a curved surface display area, and the curved surface display area comprises a nonlinear edge; the display module further comprises a display panel and a supporting structure which are arranged in a laminated mode. The supporting structure is located on the non-light-emitting side of the display panel. The supporting structure comprises a first supporting layer and a second supporting layer which are arranged in a laminated mode, and the Young modulus of the second supporting layer is larger than that of the first supporting layer; at least one opening is formed in the nonlinear edge of at least the second supporting layer; the opening penetrates through the second supporting layer in the thickness direction of the display module. According to the technical scheme, at least one opening is formed in the second supporting layer with the large Young modulus in the supporting structure, and the opening is located at the non-linear edge. By additionally arranging the opening, stress generated in the display module can be effectively relieved, wrinkles and the like are prevented from being generated at the non-linear edge, the structural stability of the display module in the curved surface display area is improved, and the reliability of the display module is improved.
Owner:XIAMEN TIANMA DISPLAY TECH CO LTD +1

Display screen brightness detection device

The invention relates to the technical field of display screen brightness detection, in particular to a display screen brightness detection device which comprises two conveying mechanisms, a transfer mechanism is arranged between the tops of the two conveying mechanisms, the transfer mechanism comprises a transmission seat, a plurality of first air cylinders are fixed to the bottom of the transmission seat, organ suction cups are fixed to the output ends of the first air cylinders, and the organ suction cups are fixed to the bottom of the transmission seat. A detection mechanism is fixed between the two conveying mechanisms, the detection mechanism comprises a base, a [-shaped plate is slidably connected to the interior of the base, and a plurality of brightness meters are fixed to one side of the [-shaped plate. According to the invention, a plurality of brightness meter detection probes which are relatively fixed in traditional positions are designed into a form capable of rotating in different directions, so that the detection probes on the brightness meter can directly face different areas of display screens with different appearances when the brightness of a straight-surface display screen or a curved-surface display screen is detected; and meanwhile, the brightness detection device is suitable for detecting the brightness of a straight-surface display screen or a curved-surface display screen.
Owner:SHENZHEN XINRONGZHEN NEW ENERGY TECHNOLOGY CO LTD

Three-dimensional vector holographic display device and display method based on medium metasurface

The invention discloses a three-dimensional vector holographic display device based on a medium metasurface and a display method. The three-dimensional vector holographic display device comprises a substrate and a nano structure unit on the substrate, the nano-structure units are arranged on the substrate according to specific phase distribution to form a nano-structure unit array; when light waves enter the three-dimensional vector holographic display device, the light waves are modulated by the nanostructure units, transmitted light waves are emitted through a plurality of independent space channels, adjustable patterns of different polarization states can be generated on a plurality of planes in a combined mode, and three-dimensional vector display is achieved. According to the invention, longitudinal regulation and control of amplitude, phase and polarization of light waves can be realized in a broadband range, super-surface display is expanded to a three-dimensional vector form from a two-dimensional scalar form, and the method can be applied to the fields of high-capacity optical storage, optical information encryption, quantum optical technology and the like.
Owner:NANJING UNIV

Service robot device

A service robot apparatus is disclosed. The service robot apparatus includes a main body, a shelf horizontally supported by the main body, a first driving device configured to move the main body, a display including a front surface displaying an image and a rear surface disposed as a side surface facing the main body, a link member including one end connected to the main body and the other end connected to the rear surface of the display, and a second driving device configured to move the link member such that the display moves along the side surface of the main body.
Owner:SAMSUNG ELECTRONICS CO LTD

A curved display screen backlight assembly preparation device

The application relates to the technical field of LCD liquid crystal screen processing, and discloses a curved surface display screen backlight assembly preparation device, which comprises a monitoring base plate, a rotating mechanism, an optical reflection part and a monitoring assembly which are rotationally connected to the monitoring base plate, light emitted by the monitoring assembly passes through a gap between external workpieces and is reflected by the optical reflection part to form a mapping light path, and a reciprocating cleaning mechanism which is arranged on the monitoring assembly and comprises a motion conversion assembly which is in transmission cooperation with the monitoring base plate, a cleaning execution part and a light transmission window. The optical mapping detection light path which is composed of the monitoring assembly, the optical reflection part and a mapping plate is arranged, so that the defects that the assembly and correction mode of the LCD screen and the backlight plate assembly is single, the internal gap size is not easy to dynamically control and the edge position is usually corrected only are solved.
Owner:SICHUAN SHIRUN TECH CO LTD

Warning board for municipal engineering

The utility model discloses a warning board for municipal engineering, and belongs to the technical field of warning boards. A warning board for municipal engineering comprises a fixing box, a storage battery and a controller are arranged at the bottom of an inner cavity of the fixing box, a supporting rod is arranged at the top of the fixing box, an indication board is clamped between multiple movable clamping plates, the outer wall of the circumference of a threaded rod is sleeved with a threaded sleeve in a threaded mode, and cleaning assemblies are slidably connected into multiple guide insection grooves. According to the device, indication boards of various sizes can be fixed and clamped conveniently, the use convenience of the device is effectively improved, the surfaces of the indication boards can be illuminated through illumination lamps after clamping, the warning effect of the device is effectively improved, a cleaning plate can be used for carrying out contact cleaning on a display area on the surface of a placement box, and the practicability of the device is improved. And the situation that the indication board is blocked due to dust accumulation, and observation of people is affected is avoided, and the cleaning board is more convenient to replace when the cleaning board needs to be replaced.
Owner:WUXI THIRD MUNICIPAL CONSTR ENG CO LTD

Isopeptide bond-based surface display system and construction method and application thereof

PendingCN120230774ABacteriaFusion with degradation motifAspartic acid residueSurface display
The invention relates to a surface display system based on an isopeptide bond and a construction method and application of the surface display system, two conformational proteins including an anchor protein containing the isopeptide bond and a target protein are designed through a modularization method, and through covalent coupling formed between lysine and asparagine or aspartic acid residues in a molecular adhesive system based on the isopeptide bond, the surface display system based on the isopeptide bond is obtained. And displaying the target protein on the surface of escherichia coli. According to the surface display system based on the isopeptide bond, high-efficiency display of complex enzyme and macromolecular protein on the cell surface is realized, and the influence of direct fusion with anchoring protein on the activity of target protein is avoided. According to the constructed surface display whole-cell catalyst, the tedious enzyme purification process is omitted, the stability of the enzyme is improved, the production cost is lower, and the surface display whole-cell catalyst shows a good application prospect in biological catalysis.
Owner:JIANGSU UNIV OF SCI & TECH

LCD screen with efficient heat dissipation

The utility model provides an efficient heat dissipation LCD screen which comprises a screen frame, a screen body, an air inlet fan and an air outlet fan, and one face of the screen body is a display face. One side of the screen frame is provided with a mounting port, the screen body is assembled in the screen frame through the mounting port, the display surface displays a user through the mounting port, a set distance is formed between one surface, deviating from the mounting port, of the screen body and the inner wall surface of the screen frame, a heat dissipation cavity is formed, and an air outlet communicated with the heat dissipation cavity is formed in the top end of one surface, deviating from the mounting port, of the screen frame. An air inlet communicated with the heat dissipation cavity is formed in the bottom of the screen frame, the air outlet fan is arranged at the air outlet, and the air inlet fan is arranged at the air inlet. According to the efficient heat dissipation LCD screen, the air inlet fan and the air outlet fan are arranged, meanwhile, the heat dissipation cavity is formed between the screen body and the inner wall face of the screen frame, flowing of air in the heat dissipation cavity can be accelerated, the heat dissipation efficiency of the screen body is high, and the cooling effect is good.
Owner:SHENZHEN BOSI HIGH TECH CO LTD

Holographic advertising machine with good protection effect and multi-surface display function

The holographic advertising machine is good in protection effect and capable of achieving multi-face display and comprises a support, the left end of the top of the support is fixedly connected with a first motor, an output shaft of the first motor is fixedly connected with a first connecting rod, and the tail end of the first connecting rod is movably connected with a second connecting rod through a rotating shaft. The tail end of the second connecting rod is movably connected with a third connecting rod of a V-shaped structure through a rotating shaft, the lower end of the third connecting rod is movably connected with a fourth connecting rod through a rotating shaft, the tail end of the third connecting rod is fixedly connected with a connecting plate, a threaded groove is formed in the right side of the connecting plate, and the inner surface of the threaded groove is in threaded connection with a protective cover; the middle end of the right side of the connecting plate is fixedly connected with a holographic advertising machine body, and the bottom of a fourth connecting rod is fixedly connected with the right end of the top of a support. According to the holographic advertising machine, the whole holographic advertising machine body can be enclosed through the protective cover, the connecting plate and the threaded groove.
Owner:DONGGUAN WEIGAO INFORMATION TECH CO LTD

Double-sided display device and control method thereof

The invention relates to a double-sided display device and a control method thereof. A double-sided display device according to the present invention comprises: a front surface temperature sensor that measures a temperature of a front surface display panel; a back surface temperature sensor measuring a temperature of the back surface display panel; and a fan controller that controls a fan based on a higher one of the measured temperature of the front display panel and the measured temperature of the back display panel.
Owner:LG ELECTRONICS INC

Flexible display module, vehicle-mounted curved surface display module, and vehicle

A flexible display module, a vehicle-mounted curved surface display module, and a vehicle are provided. The flexible display module (10) comprises: a support layer (11); a flexible display panel (12) on the support layer (11); and an optical control layer (13), on the side of the flexible display panel (12) away from the support layer (11), and comprises first and second light control layers (131) and (132) on one side of the first light control layer (131), wherein the dimming rate of the first light control layer (131) is greater than that of the second light control layer (132). The flexible display module (10) uses the first and second light control layers (131) and (132) to realize visual angle brightness control of different regions, can be applied to vehicle-mounted display to solve the problem whereby curved surface display tends to form a projection on a windshield.
Owner:CHENGDU BOE OPTOELECTRONICS TECH CO LTD +1

Box frame for assembling cambered-surface display screen, arc-shaped display unit and display combined screen

The invention relates to an LED display combination screen, an arc-shaped display unit and a box body frame for assembling an arc-surface display screen, and the box body frame for assembling the arc-surface display screen comprises a frame main body and a control box; the control box is arranged on the back surface of the frame main body, and the frame main body comprises a plurality of side frames and a middle frame strip; the middle frame strip is connected between the two parallel frames, and the middle frame strip is provided with a containing groove; the control box comprises an upper cover, a HUB board and at least one power supply; the middle frame strip is provided with a containing groove, the HUB board is installed in the containing groove of the middle frame strip, the HUB board comprises a plurality of signal interfaces used for being synchronously connected with a plurality of LED display screen modules, the power sources are installed on the inner side of the upper cover, and a cavity is defined by the middle frame strip and the upper cover to load the HUB board and the power sources. And meanwhile, the HUB board integrated with more signal interfaces is adopted, so that the space is further saved, the weight of the whole screen is reduced, and the working efficiency is improved.
Owner:SHENZHEN UNIVIEW LED

Splicing display module and display device

The present invention embodiment discloses a splicing display module and a display device. The splicing display module includes at least two first display regions and a splicing region located between adjacent two of the first display regions. The splicing display module includes at least two display panels and optical parts. Each display panel includes a display portion and anon-display portion located around the display portion. The display portion includes a planar display sub-portion and a curved surface display sub-portion. The curved surface display sub-portion corresponds to the splicing region. The planar display sub-portion corresponds to the first display region. The optical part corresponds to the curved surface display sub-portion and is located on a light exiting side of the curved surface display sub-portion to refract light emitted from the curved surface display sub-portion to be along a direction away from the first display region of a corresponding display panel.
Owner:WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD

Picture Rendering Methods and Systems

Picture rendering techniques for virtual environments are described herein. The techniques may include: obtaining geometric information of at least one reflection capture object in a virtual scene; determining, in the presence of a target reflection capture object having a reflection effect changed, a target virtual object from virtual objects included in a field of view according to the geometric information of the target reflection capture object, where the target virtual object is a virtual object having a surface display effect changed when the reflection effect of the target reflection capture object is changed; re-rendering the target virtual object to generate a re-rendered target virtual object, where a texture of a material surface of the re-rendered target virtual object is changed; and generating a display picture of the field of view according to the re-rendered target virtual object and virtual objects other than the target virtual object. The described techniques improve rendering performance.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

Mirror with sensor and display

This product is a mirror equipped with a camera, sensors, and a display. The camera and sensors allow for non-contact measurement of biological information such as blood vessel information and surface temperature, and the measurement results are displayed on the mirror's surface display. The various sensors are positioned behind an infrared-transmitting film so that they are not visible to the user.
Owner:SHARP KK

Intelligent mirror, rehabilitation training system and rehabilitation training method

The invention provides an intelligent mirror, a rehabilitation training system and a rehabilitation training method. The intelligent mirror comprises a mirror surface display module, a camera module, an audio module and a processor. And the processor acquires user disease data through the cloud and / or displays a pathological type through the mirror display module, and acquires the user disease data according to a user instruction. And the processor generates an evaluation item according to the user disease data, issues a corresponding evaluation instruction through the mirror display module and / or the audio module to obtain user evaluation data, and generates an evaluation report. Besides, the processor also generates a training scheme according to the evaluation report, issues a corresponding training instruction through the mirror display module and / or the audio module, obtains a user training action through the camera module and / or the audio module, and generates a training report according to the user training action. Evaluation and training are carried out through the intelligent mirror, a patient can obtain efficient, convenient and personalized rehabilitation experience at home, and occupation of medical resources is reduced.
Owner:SHANGHAI YANGZHI REHABILITATION HOSPITAL

Intelligent cabin system and control method thereof

The invention provides an intelligent cabin system and a control method thereof, and belongs to the technical field of intelligent cabins, and the intelligent cabin system comprises an emotion perception module which is used for obtaining the emotion data of a user in a vehicle; the environment sensing module is used for acquiring environment data outside the vehicle; the central controller is used for receiving the in-vehicle user emotion data of the emotion sensing module and the out-vehicle environment data of the environment sensing module, generating vehicle body display content according to the in-vehicle user emotion data and / or the out-vehicle environment data, and controlling the vehicle body display module to display the vehicle body display content; and the vehicle body display module is used for displaying the vehicle body display content on the surface of the vehicle body. Linkage of in-vehicle emotion and out-of-vehicle display can be achieved, the interaction ability between the vehicle and the surrounding environment is enhanced, and the driving experience of a user is improved.
Owner:DONGFENG MOTOR GRP

Method for improving cell surface display efficiency and product

The invention discloses a method for improving cell surface display efficiency and a product, and belongs to the technical field of biology. The invention provides a method for improving cell surface display efficiency. The method comprises the following steps: S1, increasing the size of a cell; knocking out genes in the cells to increase the size of the cells; the gene is selected from a group consisting of a PASchr < 2-10508 >, a PASchr < 1-40585 >, a PASchr < 30819 >, a PASchr < 2-20036 >, a PASchr < 2-10366 >, a PASchr < 1-40244 >, a PASchr < 30688 >, a PASchr < 1-10383 >, a PASchr < 1-40081 > and a PASchr < 40223 >. According to the method for improving the cell surface display efficiency, ten single-gene knockout strains and ten double-gene knockout strains are obtained based on the method, and experiments prove that the cell sizes of the strains are increased to different extents, so that the display efficiency, the display quantity and the enzyme activity are improved in the aspect of cell surface display, and the cell surface display efficiency is improved. Meanwhile, the report protein UGT73F24m-Ag alpha of the strains catalyzes GA to obtain a GLMG product, and the concentration of the GLMG product is increased to different degrees.
Owner:BEIJING INST OF TECH

Laminating method of curved surface display device, bending laminating device and curved surface display device

The invention discloses a fitting method of a curved surface display device, a bending fitting device and the curved surface display device.The fitting method of the curved surface display device comprises the steps that a flexible screen body and a cover plate are fitted, and a fitted initial module is obtained; bending the initial module to obtain a curved screen; the curved screen is attached to the middle frame. According to the scheme that the initial module with the cover plate is bent and deformed, the deformation quantity of the obtained curved screen can be adjusted through bending, the initial module with the cover plate is pre-bent and then aligned and attached, and the design of middle frames with different bending directions and angles can be effectively matched; due to the characteristic that the initial module can be bent subsequently, the bending amplitude and size of the initial module are easier to adjust, the method can be suitable for more middle frame design schemes, meanwhile, the bending amplitude before attachment can be improved, and terminal products of complex structures are easier to implement. The application range is wider.
Owner:HEFEI VISIONOX TECH CO LTD

Yeast and plasmid for surface protein exposure

The present invention relates to a recombinant yeast characterized in that its genome comprises a metabolite-inducible promoter in place of the native promoter of the AGA1 gene, to a plasmid comprising (i) a metabolite-inducible promoter operatively linked the nucleotide sequence coding for a fusion protein comprising a protein of interest, and to the combined use of said yeast and plasmid in a Yeast Surface Display method.
Owner:UNIV POLITECNICA DE VALENCIA

A recombinant pichia pastoris indirectly displaying a petase protein on the surface

The application discloses a kind of recombinant Pichia pastoris for indirectly surface display PETase protein, comprising: (1) 3×IM7-SED1 fusion protein is expressed heterologously in Pichia pastoris GS115, and constructs IM7 yeast.(2)CL7-PETase fusion protein is expressed heterologously in Escherichia coli BL21 (DE3), and constructs CL7-PETase protein.(3)IM7 yeast and CL7-PETase protein are combined, and the surface display of PETase protein on Pichia pastoris is realized.The construction method of indirect surface display used in the application overcomes the disadvantage of insufficient expression of direct surface display system, and compared with free enzyme, has the characteristics of high stability, easy separation and recovery, controllable continuous operation, simple process, and the surface display enzyme is different from traditional physical or chemical immobilization method.For PET rigid substrate, surface display enzyme can more fully and effectively contact with substrate, maximum catalysis substrate, and can be used as whole-cell catalyst in the application of PET plastic degradation.
Owner:NANJING TECH UNIV

Flexible Local dimming structure of curved display screen

The invention discloses a flexible Local diameter structure of a curved-surface display screen, and relates to the field of curved-surface display screens, the flexible Local diameter structure comprises a flexible substrate, and the flexible substrate is provided with a plurality of bowl-shaped mounting grooves arranged in a matrix; the light-emitting chip is mounted in the bowl-shaped mounting groove; the copper circuit is arranged on the flexible substrate and is provided with at least one positioning bracket for positioning the light-emitting chip; the heat dissipation piece is used for dissipating heat of the light-emitting chip; the surrounding edge is arranged outside the flexible substrate; according to the invention, the elastic contact element deforms due to extrusion at first, so that not only can a sealing effect be achieved, glue is prevented from overflowing, but also the flexible flow guide element can be inclined due to inflation, and after the optical glue layer is extruded, the glue flows towards the outer side and flows into the concentric-square-shaped accommodating groove along the flexible flow guide element, so that the glue can be further prevented from overflowing; therefore, the manufacturing process of the curved screen is simplified, and the probability that the liquid optical glue flows to the working table top during glue dispensing can be reduced by utilizing the two interception defense lines, namely the inner side edge and the outer side edge.
Owner:SHENZHEN DIXIAN ELECTRONICS

Stereoscopic surface display device and operation method thereof

The present disclosure relates to a stereoscopic surface display device, and more particularly, to a stereoscopic surface display device including: a light source unit including a plurality of optical elements; and a stereoscopic display unit disposed on the light source unit. The stereoscopic display unit includes: a polymer layer; and a light absorption layer buried in the polymer layer. The stereoscopic display unit includes a plurality of cell areas arranged in two-dimension, the light absorption layer is disposed in the plurality of cell areas, the plurality of optical elements vertically overlap the plurality of cell areas, respectively, and each of the plurality of cell areas has a stereoscopic shape.
Owner:ELECTRONICS & TELECOMM RES INST

Pichia pastoris indirect surface display system based on TRAP protein scaffold and construction method and application thereof

The invention discloses a Pichia pastoris indirect surface display system based on a TRAP protein scaffold, which is characterized in that Sed1p protein from saccharomyces cerevisiae is used as anchoring protein, and tetrapeptide repeat affinity protein TRAP is fixed on the anchoring protein on the surface of a Pichia pastoris cell to obtain the Pichia pastoris indirect surface display system based on the TRAP protein scaffold. The target protein with the carboxyl end fused with the peptide MEEVV or the peptide MRRVW is indirectly displayed on the surface of the pichia pastoris cell through specific binding with the tetrapeptide repeat affinity protein TRAP. The xylanase and the beta-xylosidase are indirectly displayed on the surface of the pichia pastoris cell by utilizing the surface display system, so that the pichia pastoris surface display system has the catalytic capabilities of the xylanase and the beta-xylosidase, can perform a synergistic effect to degrade the zelkova xylan, and has a good application prospect.
Owner:NANJING TECH UNIV