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A mammalian delayed-early response gene encodes HNP36, a novel, conserved nucleolar protein.
- Source :
-
Biochemical and biophysical research communications [Biochem Biophys Res Commun] 1995 Aug 04; Vol. 213 (1), pp. 325-33. - Publication Year :
- 1995
-
Abstract
- Murine fibroblasts respond to mitogens by sequential gene expression in which immediate-early, or primary response, gene transcription factors direct expression of secondary transcripts encoded by delayed-early response (DER) genes. DER gene products include growth progression factors, but the products of several novel cDNAs are unknown. Murine and human cDNAs derived from one novel DER gene (DER12) were characterized to identify its product and to probe its role in the growth response. Both sequences encoded a hydrophobic 36 kD protein (HNP36) that was related to the yeast protein, FUN26. Anti-murine HNP36 antibodies were prepared and shown to immunoprecipitate both mammalian in vitro translation products. Immunocytochemical staining indicated localization of HNP36 to the nucleolus where its concentration increased after mitogen stimulation. Although HNP36 protein function is unknown, its identification as a nucleolar gene transcriptionally activated by growth factors implicates it as participating in the proliferative response.
- Subjects :
- 3T3 Cells
Amino Acid Sequence
Animals
Base Sequence
Blotting, Northern
DNA Primers
DNA, Complementary
Fibroblasts cytology
Fibroblasts drug effects
Fibroblasts metabolism
Genes, Immediate-Early
Mammals
Mice
Mice, Inbred BALB C
Molecular Sequence Data
Oligodeoxyribonucleotides
Polymerase Chain Reaction
Protein Conformation
RNA, Messenger analysis
RNA, Messenger biosynthesis
Sequence Homology, Amino Acid
Cell Nucleolus metabolism
Equilibrative-Nucleoside Transporter 2
Gene Expression
Nuclear Proteins biosynthesis
Subjects
Details
- Language :
- English
- ISSN :
- 0006-291X
- Volume :
- 213
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Biochemical and biophysical research communications
- Publication Type :
- Academic Journal
- Accession number :
- 7639753
- Full Text :
- https://doi.org/10.1006/bbrc.1995.2133