An Efficient Yeast Chromosome Fusion Method
A chromosome and yeast technology, applied in the field of efficient yeast chromosome fusion, can solve the problems of difficult DNA separation, limited application, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0135] Example 1 , two chromosomal fusions
[0136] Using Saccharomyces cerevisiae BY4742 as the starting strain, ChrVI (270kbp) and ChrI (230kbp), ChrIX (440kbp) and ChrII (813kbp) were selected for fusion (Table 2).
[0137] Table 2. Two chromosome fusion information
[0138]
[0139] The Cas9 expression plasmid pleucas9 was transformed into BY4742 yeast cells to obtain strain BY4742 / pleucas9. Plasmid pleucas9 contains the promoter Tef1 to allow constitutive expression of Cas9 in yeast. The plasmid contains the yeast replication region (CEN6ARS4) and the selection marker (LEU2), which is single-copy replication in yeast; also contains the E. coli replication region (derived from pBR322) and the selection marker ampicillin (Ampicillin), which is high in E. coli Copy copy.
[0140] When ChrVI and ChrI are fused, the ChrVI centromere is knocked out, and 148410-148459bp, 148725-148774bp, 148775-149002bp on ChrVI are selected as the left homology arm, right homology arm, ...
Embodiment 2
[0144] Example 2 , three chromosome fusions
[0145] In this example, Saccharomyces cerevisiae BY4742 was used as the starting strain, and ChrVI (270kbp), ChrI (230kbp) and ChrII (813kbp) were selected for fusion, as shown in Table 3.
[0146] Table 3. Three chromosome fusion information
[0147]
[0148] ChrVI (270 kbp), ChrI (230 kbp) and ChrII (813 kbp) were fused to knock out the centromere of ChrVI and ChrII. Select 148410-148459bp, 148725-148774bp, 148775-149002bp on ChrVI as the left homology arm, right homology arm and forward repeat sequence of centromere knockout; 269212-269615bp as the left homology arm of the ChrVI-I fusion component . 2893-3294bp and 3295-3519bp on ChrI serve as the right homology arm and forward repeat of ChrVI-I fusion assembly; 202775-203182bp serve as the left homology arm of ChrI-II fusion assembly. 8680-9089bp and 9090-9359bp on ChrII serve as the right homology arm and forward repeat of the ChrI-II fusion component. Select 237974-2...
Embodiment 3
[0152] Example 3 , two sets of two chromosomal fusions
[0153] In this example, Saccharomyces cerevisiae BY4742 was used as the starting strain, and ChrVI (270kbp) and ChrI (230kbp), ChrIX (440kbp) and ChrII (813kbp) were simultaneously fused (Table 4).
[0154] Table 4. Two sets of chromosome fusion information
[0155]
[0156] When ChrVI (270kbp) and ChrI (230kbp), ChrIX (440kbp) and ChrII (810kbp) are fused at the same time, pgRNA1-6, ChrVI centromere knockout module (URA3), ChrVI-I fusion module (URA3), ChrIX The centromeric knockout module (LYS2) and the ChrIX-II fusion module (LYS2) were transferred into BY4742 / pleucas9 using the protoplast fusion transformation method described in Example 1 (see Example 1 for the selection of homology arms).
[0157] Preliminary verification was carried out according to the colony PCR method described in Example 1 (see Example 1 for verification primers), two experiments were carried out, the number of fusion transformants was 1...
PUM
![No PUM](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com