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Title: Comparison of human and mouse T-cell receptor variable gene segment subfamilies

Journal Article · · Immunogenetics
DOI:https://doi.org/10.1007/BF00172178· OSTI ID:471536
 [1]; ;  [2];  [3]
  1. Amgen Center, Thousand Oaks, CA (United States)
  2. Paul-Ehrlich-Inst., Langen (Germany)
  3. 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