Comparison of human and mouse T-cell receptor variable gene segment subfamilies
- Amgen Center, Thousand Oaks, CA (United States)
- Paul-Ehrlich-Inst., Langen (Germany)
- Amgen Inst., Toronto, Ontario (Canada)
Like the immunoglobulin Igh-V and Igk-V gene families, the human or mouse TCRV gene families may be grouped into subfamilies displaying {ge} 75% nucleic acid sequence similarity among their members. Systematic interspecies sequence comparisons reveal that most mouse Tcr-V subfamilies exhibit clear homology to human TCRV subfamilies ({ge}60% amino acid sequence similarity). Homologous paris of TCRV genes in mice and humans show higher sequence similarity than TCRV genes from different subfamilies within either species, indicating trans-species evolution of TCRV genes. Mouse and human homologues show conservation of their relative map order, particularly in the 3{prime} region and a similar sequential and developmentally programmed expression. When the V regions from both species were analyzed together, local length differences and conserved residues in the loop regions were revealed, characteristic of each of the four TCRV families. 31 refs., 4 figs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 471536
- Journal Information:
- Immunogenetics, Vol. 42, Issue 6; Other Information: PBD: Oct 1995
- Country of Publication:
- United States
- Language:
- English
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BASIC STUDIES
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MISCELLANEOUS
GENES
GENE MUTATIONS
STANDARDIZED TERMINOLOGY
GENETIC MAPPING
DNA SEQUENCING
STRUCTURE-ACTIVITY RELATIONSHIPS
DATA BASE MANAGEMENT
AMINO ACID SEQUENCE
BIOLOGICAL EVOLUTION
GENE REGULATION
LYMPHOCYTES
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CORRELATIONS
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MAN
NUCLEIC ACIDS