Shac--Isolation of Chromosome Region Specific CDNA

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: 1 R43 HD33616-01,
Agency Tracking Number: 29300
Amount: $749,794.00
Phase: Phase II
Program: SBIR
Awards Year: 1997
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
1335 Gateway Drive, Suite 2001, Melbourne, FL, 32904
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Linda Chen-Liu
 () -
Business Contact
Phone: () -
Research Institution
This proposal describes a method for preparing cDNA sublibraries specific to certain chromosome regprocedure, which we call selection of hybrids by affinity capture (SHAC), can be described in two stbanded mitotic chromosomes are microdissected and PCR- amplified using a universal degenerate primertechnique employed in our lab to obtain chromosome region-specific genomic DNA; the specificity of tis routinely verified by fluorescent in situ hybridization (FISH). This chromosome-region specific,DNA is referred to as the target genomic DNA. In the second stage, a cDNA library with unique linkerwe call the source cDNA, is denatured and hybridized in solution with the target genomic DNA which hand reannealed in the presence of genomic competitor DNA. Under appropriate hybridization conditionstarget DNA will bind to its homologous counterpart from the source cDNA. The resulting DNA duplexesstreptavidin- coated magnetic beads via the strong affinity between biotin and streptavidin. The cDNSHACcDNAs) are recovered from their biotin-labeled target genomic counterparts by alkaline denaturatamplification. The SHAC technique should facilitate the construction of cytogenetically-defined, chrspecific cDNA sublibraries and should assist in the fields of gene discovery and genome mapping. Thibe demonstrated using human chromosome bands l3ql2-13 as a test case.

* Information listed above is at the time of submission. *

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