RRC ID 41731
著者 Ajuh P, Chusainow J, Ryder U, Lamond AI.
タイトル A novel function for human factor C1 (HCF-1), a host protein required for herpes simplex virus infection, in pre-mRNA splicing.
ジャーナル EMBO J
Abstract Human factor C1 (HCF-1) is needed for the expression of herpes simplex virus 1 (HSV-1) immediate-early genes in infected mammalian cells. Here, we provide evidence that HCF-1 is required for spliceosome assembly and splicing in mammalian nuclear extracts. HCF-1 interacts with complexes containing splicing snRNPs in uninfected mammalian cells and is a stable component of the spliceosome complex. We show that a missense mutation in HCF-1 in the BHK21 hamster cell line tsBN67, at the non-permissive temperature, inhibits the protein's interaction with U1 and U5 splicing snRNPs, causes inefficient spliceosome assembly and inhibits splicing. Transient expression of wild-type HCF-1 in tsBN67 cells restores splicing at the non-permissive temperature. The inhibition of splicing in tsBN67 cells correlates with the temperature-sensitive cell cycle arrest phenotype, suggesting that HCF-1-dependent splicing events may be required for cell cycle progression.
巻・号 21(23)
ページ 6590-602
公開日 2002-12-2
DOI 10.1093/emboj/cdf652
PMID 12456665
PMC PMC136956
MeSH Cell Nucleus / metabolism Herpes Simplex / metabolism* Host Cell Factor C1 Humans In Vitro Techniques Mutation Proteins / genetics Proteins / metabolism* RNA Splicing* RNA, Messenger / metabolism* Ribonucleoproteins, Small Nuclear / metabolism Spliceosomes / metabolism Transcription Factors*
IF 9.889
引用数 19
WOS 分野 BIOCHEMISTRY & MOLECULAR BIOLOGY CELL BIOLOGY
リソース情報
ヒト・動物細胞