USA flag logo/image

An Official Website of the United States Government

DIRECT SEQUENCING OF LARGE RECOMBINANT MOLECULES

Award Information

Agency:
Department of Health and Human Services 		Branch:
N/A 		Award ID:
13844 		Program Year/Program:
1990 / SBIR
Agency Tracking Number:
13844 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
C-MOTION, INC.
C-MOTION, INC. 15821A CRABBS BRANCH WAY ROCKVILLE, MD 20855
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1990
Title: DIRECT SEQUENCING OF LARGE RECOMBINANT MOLECULES
Agency: HHS
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

THIS PROJECT ADDRESSES THE NEED FOR EFFICIENT METHODS TO RAPIDLY DETERMINE THE DNA SEQUENCE OF YEAST ARTIFICIAL CHROMOSOME (YAC) OR COSMID CLONES WITHOUT SUBCLONING SMALL FRAGMENTS. THE METHOD COMBINES MULTIPLEX DNA SEQUENCING WITH LIGASE-MEDIATED POLYMERASE CHAIN REACTION (PCR) AMPLIFICATION OF SPECIFIC RESTRICTION FRAGMENTS. PURIFIED YAC OR COSMID DNA IS DIGESTED WITH TWO DIFFERENT RESTRICTION ENZYMES TO GENERATE FRAGMENTS WITH ONE BLUNT ENDAND ONE AMBIGUOUS 4-BASE 5'-PROTRUDING END. SYNTHETIC OLIGONUCLEOTIDES CONTAINING MULTIPLEX TAG SEQUENCES ARE SPECIFICALLY LIGATED TO THESE ENDS, AND PRIMERS HOMOLOGOUS TO THE TAGS ARE USED TO AMPLIFY THE FRAGMENTS BY PCR. PRODUCTS OF THE PCR REACTIONS ARE POOLED, AND CHEMICAL SEQUENCING REACTIONS ARE PERFORMED. THE SAMPLES ARE FRACTIONATED ON SEQUENCING GELS, ELECTROBLOTTED, AND INDIVIDUAL SEQUENCE LADDERS VISUALIZED ON AUTORADIOGRAMS AFTER SEQUENTIAL HYBRIDIZATION USING MULTIPLEX PROBES. WITH APPROPRIATE SELECTION OF RESTRICTIONENZYMES, THERE IS A HIGH PROBABILITY THAT ANY PARTICULAR 4-BASE END WILL OCCUR ONLY ONCE IN THE STARTING CLONE. EXTENSIVE OVERLAPS CAN BE GENERATED BY USING SEVERAL SETS OFINTERRELATED DOUBLE RESTRICTION DIGESTS. PHASE I STUDIES WILL FOCUS PRIMARILY ON TECHNICAL ASPECTS OF THE LIGATION AND PCR REACTIONS. A SET OF MULTIPLEX SEQUENCING REACTIONS WILL BE PERFORMED, AND THE APPLICABILITY OF THE METHOD WILL BE EVALUATED.

Principal Investigator:

Douglas R Smith
6172750004

Business Contact:

Small Business Information at Submission:

Collaborative Research Inc
2 Oak Pk Bedford, MA 01730

EIN/Tax ID: 522053087
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No