Three-region specific microdissection libraries for the long arm of human chromosome 2, regions q33-q35, q31-q32, and q23-q24

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · Somatic Cell and Molecular Genetics

DOI:https://doi.org/10.1007/BF02257468· OSTI ID:241181

Yu, J; Tong, S; Whittier, A ^[1]

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1. Elearnor Roosevelt Institute for Cancer Research, Denver, CO (United States); and others

Three region-specific libraries have been constructed from the long arm of human chromosome 2, including regions 2q33-35 (2Q2 library), 2q31-32 (2Q3) and 2q23-24 (2Q4). Chromosome microdissection and the MboI linker-adaptor microcloning techniques were used in constructing these libraries. The libraries comprised hundreds of thousands of microclones in each library. Approximately half of the microclones in the library contained unique or low-copy number sequence inserts. The insert sizes ranged between 50 and 800 bp, with a mean of 130-190 bp. Southern blot analysis of individual unique sequence microclones showed that 70-94% of the microclones were derived from the dissected region. 31 unique sequence microclones from the 2Q2 library, 31 from 2Q3, and 30 from 2Q4, were analyzed for insert sizes, the hybridizing genomic HindIII fragment sizes, and cross-hybridization to rodent species. These libraries and the short insert microclones derived from the libraries should be useful for high resolution physical mapping, sequence-ready reagents for large scale genomic sequencing, and positional cloning of disease-related genes assigned to these regions, e.g. the recessive familial amyotrophic lateral sclerosis assigned to 2q33-q35, and a type I diabetes susceptibility gene to 2q31-q33. 17 refs., 5 figs., 2 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 241181
• Journal Information: Somatic Cell and Molecular Genetics, Journal Name: Somatic Cell and Molecular Genetics Journal Issue: 5 Vol. 21; ISSN 0740-7750; ISSN SCMGDN
• Country of Publication: United States
• Language: English

Related Subjects

55 BIOLOGY AND MEDICINE
BASIC STUDIES
GENETIC MAPPING
HUMAN CHROMOSOME 2