Definition and variation of human endogenous retrovirus H
Definition and variation of human endogenous retrovirus H
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DOI:
10.1016/j.virol.2004.06.023
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发表时间:
2004-09-13
期刊:
影响因子:
3.7
通讯作者:
Blomberg, J
中科院分区:
文献类型:
--
作者:
Jern, P;Sperber, GO;Blomberg, J
We defined the abundant human endogenous retrovirus group HERV-H based on pol similarity. Among 3661 pol-containing elements, 1124 integrations were similar to HERV-H RGH2 pol using translated pol sequences. A clustering procedure lessened these to 234 representatives, amenable to detailed study. Among the 1124, 926 clustered into HERV-H and 106 into adjacent HERV-H-like, the remainder being more distant to HERV-H. The HERV-H group was divided into RTVLH2-like (705 elements) and RGH2-like (77 elements) subgroups. Among 926 HERV-H, LTR differences were 1-33%, 10% had env, 78% had gag, 66% had a histidine primer binding site (PBS), and 3% (both subgroups) had a phenylalanine PBS. Allelic differences in em, were studied using a convenient temperature gradient gel electrophoresis (TGGE) method and a genomic single nucleotide polymorphism (SNP) search. A pattern of abundant defective elements and less abundant less defective ones led us to formulate a "midwife" master model where more complete elements help the others in trans to transpose. (C) 2004 Elsevier Inc. All rights reserved.