35 results about "Microtubule-associated protein" patented technology

In accordance with the invention, novel gene deletions and translocations involving chromosome 2 resulting in fusion proteins combining part of Anaplastic Lymphoma Kinase (ALK) kinase with part of a secondary protein have now been identified in human solid tumors, e.g. non-small cell lung carcinoma (NSCLC). Secondary proteins include Echinoderm Microtubule-Associated Protein-Like 4 (EML-4) and TRK-Fusion Gene (TFG). The EML4-ALK fusion protein, which retains ALK tyrosine kinase activity, was confirmed to drive the proliferation and survival of NSCLC characterized by this mutation. The invention therefore provides, in part, isolated polynucleotides and vectors encoding the disclosed mutant ALK kinase polypeptides, probes for detecting it, isolated mutant polypeptides, recombinant polypeptides, and reagents for detecting the fusion and truncated polypeptides. The disclosed identification of this new fusion protein enables new methods for determining the presence of these mutant ALK kinase polypeptides in a biological sample, methods for screening for compounds that inhibit the proteins, and methods for inhibiting the progression of a cancer characterized by the mutant polynucleotides or polypeptides, which are also provided by the invention.

The invention relates to an EML4-ALK (echinoderm microtubule associated protein like4-anaplastic lymphoma kinase) fusion gene fluorescent quantitative PCR (polymerase chain reaction) assay kit, which is applicable to assay of EML4-ALK fusion gene mutation in lung adenocarcinoma. The kit comprises probes, primers and positive controls, which are specially designed for conserved sequences of 9 fusion variations of the EML4-ALK fusion gene. The kit can be used for quickly and accurately assaying 9 most common EML4-ALK fusion gene variations with high sensitivity, namely 9 fusion variations of 7 variant subtypes, which are subtype 1 (E13; A20), subtype 2 (E20; A20), subtype 3 (E6a/b; A20), subtype 4 (E14; A20), subtype 5 (E2a/b; A20), subtype 6 (E18; A20) and subtype 7 (E14; A20), so that a real-time fluorescent quantitative PCR system for assaying 9 most common EML4-ALK fusion gene variations can be established.

Chemotherapeutic agents that interfere with microtubule assembly or disassembly in the cell are potent inhibitors of cell replication. Examples of such agents include halichondrin B analogs. It has been shown that the susceptibility of certain cancers to analogs of halichondrin B correlates with the expression of particular tubulin isotypes or other microtubule-associated proteins such as MAP-4 and stathmin. Correlations such as these may be used in identifying patients suitable for treatment using a particular chemotherapeutic agent. Such a system avoids treating patients with cytotoxic compounds where there is a minimal or no effect on the cancer. The invention also provides a system of establishing these correlations for different compounds and cancer types. The system will be particularly useful in establishing correlations between anti-microtubule agents and cancers such as lung, breast, and ovarian cancer. Kits and reagents useful in practicing the invention are also provided.

The present invention provides methods for diagnosing a neurological disease and/or for determining the predisposition of a subject to a neurological disease and/or for determining a subject at risk of developing a neurological disease, the method comprising detecting a marker in a glycogen synthase kinase 3β gene or expression product thereof and a microtubule-associated protein tau (MAPT) gene or expression product thereof. The present invention also provides pharmacogenetic methods, e.g., for identifying a subject that will respond to treatment with a therapeutic compound.

The invention provides a human microtubule-associated protein (HMAP) and polynucleotides which identify and encode HMAP. The invention also provides expression vectors, host cells, antibodies, agonists, and antagonists. The invention also provides methods for treating or preventing disorders associated with expression of HMAP.

The invention discloses a microtubule-associated protein and coding genes and application thereof. The microtubule-associated protein is protein of (a) or (b): (a) protein formed by an amino acid sequence as shown by a sequence one in a sequence table; and (b) protein derived by the sequence one, related to the inhibition of the microtubule de-polymerization activity of MCAK protein and formed ina way the amino acid sequence of the sequence one is substituted and/or deleted and/or added by one to ten amino acid residues. The protein of the invention participates in the regulation and the control of the forward end dynamics of microtubules through the mutual effect with EB1 and MCAK and stabilizes the microtubules through inhibiting the microtubule de-polymerization activity of the MCAK protein. After the coding genes of the low-interference RNA of microtubule-associated protein genes are introduced into a host, the microtubule positioning of the MCAK is seriously affected. The protein and the coding genes thereof play a great role in the medical field and the pharmaceutical field and thereby the application prospect is wide.

The present invention relates to cell models of Alzheimer's disease. Transgenic yeast cells are described as models for the tau-opathy in Alzheimer's disease. These cell models comprise recombinant DNA constructs comprising control sequences and a cDNA sequence encoding a human tau-isoform and another similar construct comprising a protein kinase that is capable, directly or indirectly, of modulating the phosphorylation of the microtubule-associated protein tau. The transgenic cells are useful for high-throughput testing for potential therapeutic agents for Alzheimer's disease and other neurodegenerative disorders.

The invention discloses a miniaturization cucumber plant associated protein and a coding gene thereof and an application thereof. An amino acid sequence of the protein is shown as a sequence table 2, which belongs to AAA ATP enzyme family, and is related with microtubule associated protein; the coding gene of the protein has a base sequence shown as a sequence table 1, if the mutation is generated on the base sequence, such as cytosine (C) with 1058 bp bit is substituted by thymidine (T), serine (Ser) with 353 bit for coding the protein is changed to phenylalanine (Phe), the protein inhibits the normal growth of the microtubule cell, the microtubule cytoskeleton is lost, the arrangement is abnormal, concretely, the plant phenotype is plant miniaturization, the height of the mutant plant is about 20% of the height of a normal wild type plant, the fruit length is about 10% of the length of normal wild type fruit, and the leaves and the seeds are obviously shortened. The application of the protein and the coding gene can create condition for cucumber strain-type improvement and cross breeding or exploitation of transgene plants.

In accordance with the invention, novel gene deletions and translocations involving chromosome 2 resulting in fusion proteins combining part of Anaplastic Lymphoma Kinase (ALK) kinase with part of a secondary protein have now been identified in human solid tumors, e.g. non-small cell lung carcinoma (NSCLC). Secondary proteins include Echinoderm Microtubule-Associated Protein-Like 4 (EML-4) and TRK-Fusion Gene (TFG). The EML4-ALK fusion protein, which retains ALK tyrosine kinase activity, was confirmed to drive the proliferation and survival of NSCLC characterized by this mutation. The invention therefore provides, in part, isolated polynucleotides and vectors encoding the disclosed mutant ALK kinase polypeptides, probes for detecting it, isolated mutant polypeptides, recombinant polypeptides, and reagents for detecting the fusion and truncated polypeptides. The disclosed identification of this new fusion protein enables new methods for determining the presence of these mutant ALK kinase polypeptides in a biological sample, methods for screening for compounds that inhibit the proteins, and methods for inhibiting the progression of a cancer characterized by the mutant polynucleotides or polypeptides, which are also provided by the invention.

The present invention addresses the problem of providing a combination of biomarkers, whereby integration dysfunction syndrome can be highly accurately diagnosed, and the utilization thereof. Provided is an integration dysfunction syndrome marker set which comprises two or more protein molecules combined together, said protein molecules being selected from the group consisting of trifunctional purine biosynthetic protein adenosine-3, uroporphyrinogen decarboxylase, interferon-induced GTP-binding protein Mx1, glutaredoxin-3, microtubule-associated protein RP/EB family member 1, tubulin folding cofactor B, immunoglobulin mu chain C region and heat shock 70 kDa protein 4L. Also provided is a method for examining integration dysfunction syndrome with the use of the level of the aforesaid marker set in a specimen as an index.

The present invention concerns an in vitro screening assay for identification of modulators of tubulin carboxypeptidase (TCPase) activity comprising the steps of: (i) Contacting (a) a substrate of TCPase enzyme comprising an amino acids sequence having at least the last 4 amino acids residues of the C-terminal sequence of an α-tubulin and/or a Microtubule Associated Protein (MAP) and, as ultimate C-terminal amino acid residue, an aromatic amino acid residue, preferably a tyrosine (Y), and b) an isolated or recombinant TCPase enzyme; in the presence or absence (control) of the modulator compound to be tested, and under conditions for substrate cleavage, preferably detyrosination, and/or liberation of a C-terminal free aromatic amino acid residue, preferably a C-terminal free tyrosine; (ii) Using reagents for detecting and measuring the signal related to substrate cleavage, preferably detyrosination, and/or liberation of the C-terminal free aromatic amino acid residue, preferably the C-terminal free tyrosine; (iii) Measuring and comparing the level of substrate cleavage, preferably detyrosination and/or the level of the C-terminal free aromatic amino acid residue, preferably the C-terminal free tyrosine in presence and in absence (control) of the compound to be tested, and (iv) Selecting the modulators of TCPase for which the level of substrate cleavage, preferably detyrosination or liberation of the C-terminal aromatic amino acid residue, preferably C-terminal free tyrosine is increased in the presence of the compound to be tested (activators of TCPase) or decreased in the presence of the compound to be tested (inhibitors of TCPase). The present invention also concerns kits for performing such in vitro screening assay.

The present invention relates to a method of preventing or treating a disease correlated with or caused by non-physiologically increased intracellular levels of the catalytic subunit of microtubule-associated protein phosphatase 2A (PP2Ac) comprising administering to a subject affected by said disease or in danger of developing said disease a pharmaceutically effective amount of a protein selected from the group of MID1 or MID2 or a nucleic acid encoding said protein. The invention further relates to a method of preventing or treating a disease correlated with or caused by non-physiologically decreased intracellular levels of the catalytic subunit of microtubule-associated protein phosphatase 2A (PP2Ac) comprising administering to a subject affected by said disease or in danger of developing said disease a pharmaceutically effective amount of a peptidic fragment of MID1 or MID2 wherein said peptidic fragment comprises amino acids 108-165 (preferably 110-165) of MID1, amino acids 108-165 (preferably 110-165) of MID2 or with an effective amount of a fragment of PP2Ac wherein said fragment comprises the binding site to a4 or of a peptide fragment of a4 comprising amino acids 236-279 or with an effective amount of a nucleic acid molecule encoding said peptide fragment or with an effective amount of a molecule interfering with the interaction of MID1 with a4 or with an effective amount of a molecule interfering with the expression or activity of MID1 and/or a 4.

The invention relates to binding molecules and antigen-binding fragments that specifically bind to microtubule-associated protein tau. The invention also relates to diagnostic, prophylactic and therapeutic methods using the binding molecules or antigen-binding fragments.

The present invention relates to an antibody which specifically binds to TMAP (tumor associated microtubule associated protein)/CKAP2 (cytoskeleton associated protein 2) or a fragment thereof, and a method for identifying the presence or absence of mitosis and a method for diagnosing cancer prognosis using the same. More specifically, the present invention relates to a composition for diagnosing cancer prognosis comprising an anti-TMAP/CKAP2 antibody or an antigen-binding site thereof, a method for detecting TMAP/CKAP2 using the composition, an anti-TMAP/CKAP2 antibody for diagnosing cancer prognosis, a method for providing information for diagnosing cancer prognosis using the composition, a method for screening a cancer therapeutic agent comprising the step of determining changes in the level of TMAP/CKAP2 antigen-antibody reaction by the treatment of a candidate substance, and a composition for determining cell-division cycles using the composition.

The invention discloses a method for detecting the expression level of MAP7 in a CN-AML tissue sample and an application thereof. The invention provides primer pairs of a microtubule-associated protein 7 gene, wherein the sequences of one primer pair are tcctgggagctgcaattaca (SEQ ID NO:2) and gggtgcttttggtcttctgg (SEQ ID NO:3) or complementary sequences thereof. In the invention, the primer pairs are used for performing risk stratification or clinical prognosis evaluation for patients suffering normal karyotype acute myelogenous leukemia by detecting the expression level of microtubule-associated protein 7. The invention also provides a gene chip and a kit comprising the primer pairs.

[Problem] To provide: an actually effective therapeutic method which is for dementia of Alzheimer's disease, and which is a causal treatment rather than a symptomatic treatment; and a therapeutic substance for dementia of Alzheimer's disease. [Solution] This substance alleviates symptoms such as dementia of Alzheimer's disease by overexpressing a microtubule-associated protein 1B gene in intracerebral neurons. In addition, as methods to solve the problem above, there are mainly two methods: a method for intracerebral administration of a gene therapy vector bound to a microtubule-associated protein 1B gene; and a method for binding a microtubule-associated protein 1B gene to a blood-brain barrier (BBB) permeable nanomachine and administering intravascularly.