PMID- 9491914 OWN - NLM STAT- MEDLINE DCOM- 19980402 LR - 20081121 IS - 0889-2229 (Print) IS - 0889-2229 (Linking) VI - 14 IP - 3 DP - 1998 Feb 10 TI - Nonsynonymous mutations within the human immunodeficiency virus type 1 p17 gene are clustered to sequences binding to the host human leukocyte antigen class I molecules. PG - 241-8 AB - We have analyzed the relation between intrapatient variabilities of the p17 gene and the location of known host p17 cytotoxic T lymphocyte (CTL) epitopes in five patients infected with human immunodeficiency virus type 1 (HIV-1). All patients were typed with respect to the human leukocyte antigen (HLA) class I type. One to seven previously fine-mapped p17 CTL epitopes corresponded to the HLA class I restriction elements of each patient. An average of 28+/-16% of the p17 gene of each patient encoded CTL epitopes corresponding to the HLA restriction elements of the host. Twenty full-length p17 gene clones were sequenced from each patient. The intrapatient homology between the p17 sequences ranged from 96.4 to 98.9%. The interpatient homology between the consensus sequences of each patient ranged from 83.1 to 91.6%. A total of 246 nucleotide differences within the 100 p17 clones was noted. Fifteen (16%) of 96 synonymous substitutions were found within host CTL epitopes, whereas 72 (48%) of 150 nonsynonymous nucleotide changes were found within CTL epitopes corresponding to the HLA restriction elements of the host (p < 0.0001; Fisher's exact test). Subsequently, variable residues indicating the evolution of at least two major p17 species (i.e., >20% of the clones) were determined to be more common at positions contained within these CTL epitopes (p < 0.01). The present data suggest that the evolution of the p17 gene is influenced by contact areas with the host HLA class I molecules. FAU - Birk, M AU - Birk M AD - Division of Clinical Virology, Huddinge University Hospital, Sweden. FAU - Vahlne, A AU - Vahlne A FAU - Sonnerborg, A AU - Sonnerborg A FAU - Sallberg, M AU - Sallberg M LA - eng PT - Journal Article PL - United States TA - AIDS Res Hum Retroviruses JT - AIDS research and human retroviruses JID - 8709376 RN - 0 (Epitopes) RN - 0 (Gene Products, gag) RN - 0 (HIV Antigens) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Viral Proteins) RN - 0 (gag Gene Products, Human Immunodeficiency Virus) RN - 0 (p17 protein, Human Immunodeficiency Virus Type 1) SB - IM MH - Adult MH - Base Sequence MH - Cloning, Molecular MH - Consensus Sequence MH - Epitope Mapping MH - Epitopes MH - Gene Products, gag/chemistry/*genetics MH - *Genes, MHC Class I MH - Genes, Viral/genetics MH - *Genetic Variation MH - HIV Antigens/chemistry/*genetics MH - HIV Infections/virology MH - HIV-1/chemistry/*genetics/*immunology MH - Histocompatibility Antigens Class I/genetics/*metabolism MH - Humans MH - Male MH - Middle Aged MH - Mutation MH - Phylogeny MH - Polymerase Chain Reaction MH - Sequence Analysis MH - Species Specificity MH - T-Lymphocytes, Cytotoxic/*immunology MH - *Viral Proteins MH - gag Gene Products, Human Immunodeficiency Virus EDAT- 1998/03/10 00:00 MHDA- 1998/03/10 00:01 CRDT- 1998/03/10 00:00 PHST- 1998/03/10 00:00 [pubmed] PHST- 1998/03/10 00:01 [medline] PHST- 1998/03/10 00:00 [entrez] AID - 10.1089/aid.1998.14.241 [doi] PST - ppublish SO - AIDS Res Hum Retroviruses. 1998 Feb 10;14(3):241-8. doi: 10.1089/aid.1998.14.241.