PMID- 19153640 OWN - NLM STAT- MEDLINE DCOM- 20090408 LR - 20090213 IS - 1432-8798 (Electronic) IS - 0304-8608 (Linking) VI - 154 IP - 2 DP - 2009 TI - Relationship between U83 gene variation in human herpesvirus 6 and secretion of the U83 gene product. PG - 273-83 LID - 10.1007/s00705-008-0307-3 [doi] AB - The betaherpesvirus human herpesvirus 6 (HHV-6) has two variants. The U83 gene product of strain HST is a chemoattractant for monocytes. Here, we describe U83 gene variations that accumulated in variants A and B. A gene-variation hot spot was examined in 36 different strains and one donor DNA sample. U83 gene variations accumulated in variant A and in reactivated variant B after transplantation. None of the variant-A viruses encoded the signal peptide found in the B variant. U83 gene sequencing suggested that the variant A and B groups were separate, and that the variant B viruses could be further divided into the HST-Z29 type and another type with a shorter signal peptide. In a eukaryotic expression system, the HST-Z29 type of U83 gene product was secreted into the medium, a frame-shifted HST-Z29 type was partially secreted, and the variant-A type and a first-methionine knockout of the HST-Z29 type were not secreted. FAU - Sjahril, R AU - Sjahril R AD - Department of Infectious Disease Control, Graduate School of Medicine G5, Osaka University, 2-2 Yamada-Oka Suita, Osaka 565-0871, Japan. FAU - Isegawa, Yuji AU - Isegawa Y FAU - Tanaka, T AU - Tanaka T FAU - Nakano, K AU - Nakano K FAU - Yoshikawa, T AU - Yoshikawa T FAU - Asano, Y AU - Asano Y FAU - Ohshima, A AU - Ohshima A FAU - Yamanishi, K AU - Yamanishi K FAU - Sugimoto, N AU - Sugimoto N LA - eng PT - Journal Article DEP - 20090120 PL - Austria TA - Arch Virol JT - Archives of virology JID - 7506870 RN - 0 (Chemokines) RN - 0 (U83 protein, Human herpesvirus 6) RN - 0 (Viral Proteins) SB - IM MH - Amino Acid Sequence MH - Base Sequence MH - Cells, Cultured MH - Chemokines/genetics/*metabolism MH - Cloning, Molecular MH - Democratic Republic of the Congo MH - Gene Frequency MH - Genetic Variation MH - Germany MH - Herpesvirus 6, Human/genetics/isolation & purification/*metabolism MH - Humans MH - Japan MH - Molecular Sequence Data MH - Roseolovirus Infections/*metabolism/virology MH - Sequence Alignment MH - Sequence Homology MH - United States MH - Viral Proteins/genetics/*metabolism EDAT- 2009/01/21 09:00 MHDA- 2009/04/09 09:00 CRDT- 2009/01/21 09:00 PHST- 2008/10/31 00:00 [received] PHST- 2008/12/09 00:00 [accepted] PHST- 2009/01/21 09:00 [entrez] PHST- 2009/01/21 09:00 [pubmed] PHST- 2009/04/09 09:00 [medline] AID - 10.1007/s00705-008-0307-3 [doi] PST - ppublish SO - Arch Virol. 2009;154(2):273-83. doi: 10.1007/s00705-008-0307-3. Epub 2009 Jan 20.