title: Mammalian mRNAs encoding protein closely related to ubiquitin-conjugating enzyme encoded by yeast DNA repair gene RAD6.
abstract: A clone of about 1 kb has been isolated from a human brain cDNA library. The clone possesses a 151 amino acid open reading frame that exhibits 72% amino acid identity with the E2 ubiquitin-conjugating enzyme encoded by the RAD6 gene of Saccharomyces cerevisiae. A 90% amino acid identity was observed in a central sequence surrounding a cysteine, which most likely contributes the sulfhydryl group involved in the formation of the ubiquitin-E2 thiolester linkage. Northern hybridization analyses have identified a poly(A)-containing mRNA of about 1 kb encoding the E2-like sequence in human CEM lymphoblastoid and HeLa cells, Novikoff rat hepatoma cells and S49 mouse leukemia cells. Southern hybridization analyses indicate the presence of a single gene encoding this sequence in both human cell lines, but of two or more related genes in the rodent cell lines.
authors.affiliation: Department of Microbiology, University of Minnesota, Medical School, Minneapolis 55113.
authors.forename: C
authors.initials: C
authors.lastname: Woffendin
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Chen
authors.forename: K
authors.initials: K
authors.lastname: Staskus
authors.forename: E F
authors.initials: EF
authors.lastname: Retzel
authors.forename: P G
authors.initials: PG
authors.lastname: Plagemann
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D015152:Blotting, Northern; D015139:Blotting, Southern; D002352:Carrier Proteins / Q000737:chemistry / Q000235:genetics*; D004260:DNA Repair / Q000502:physiology; D006367:HeLa Cells; D006801:Humans; D008025:Ligases; D051379:Mice; D008969:Molecular Sequence Data; D051381:Rats; D012441:Saccharomyces cerevisiae / Q000235:genetics*; D012689:Sequence Homology, Nucleic Acid; D014407:Tumor Cells, Cultured; D044763:Ubiquitin-Conjugating Enzymes
chemical_list: D002352:Carrier Proteins; C046288:ubiquitin carrier proteins; D044763:Ubiquitin-Conjugating Enzymes; D008025:Ligases