title: Human RanBP3, a group of nuclear RanGTP binding proteins.
abstract: A group of novel human Ran-binding proteins, RanBP3, was identified using the yeast two-hybrid system via Ran-mediated interaction with the nucleotide exchange factor RCC1. Several open reading frames, representing putative alternatively spliced products, were established by cDNA cloning. Two of them, RanBP3-a and RanBP3-b, encode nuclear hydrophilic proteins of 499 and 562 amino acid residues. The sequences contain FXFG motifs, characteristic of a subgroup of nucleoporins, and a C-terminal domain showing similarity to the Ran-binding protein RanBP1. These proteins are localized in the nucleus, preferentially bind RanGTP and may be nuclear effectors of the Ran pathway.
authors.affiliation: Division for Molecular Biology of Mitosis, German Cancer Research Center, Heidelberg. ponstingl@dkfz-heidelberg.de
authors.forename: L
authors.initials: L
authors.lastname: Mueller
authors.forename: V C
authors.initials: VC
authors.lastname: Cordes
authors.forename: F R
authors.initials: FR
authors.lastname: Bischoff
authors.forename: H
authors.initials: H
authors.lastname: Ponstingl
mesh_terms: D017398:Alternative Splicing; D000595:Amino Acid Sequence; D002352:Carrier Proteins / Q000096:biosynthesis / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D018797:Cell Cycle Proteins; D002467:Cell Nucleus / Q000378:metabolism; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000378:metabolism; D019204:GTP-Binding Proteins / Q000096:biosynthesis / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D020662:Guanine Nucleotide Exchange Factors; D006367:HeLa Cells; D006801:Humans; D008969:Molecular Sequence Data; D009687:Nuclear Proteins / Q000096:biosynthesis / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D029543:Nucleocytoplasmic Transport Proteins; D011994:Recombinant Proteins / Q000096:biosynthesis / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D017386:Sequence Homology, Amino Acid; D014158:Transcription, Genetic; D015003:Yeasts / Q000378:metabolism; D020931:ran GTP-Binding Protein
chemical_list: D002352:Carrier Proteins; D018797:Cell Cycle Proteins; D004268:DNA-Binding Proteins; D020662:Guanine Nucleotide Exchange Factors; D009687:Nuclear Proteins; D029543:Nucleocytoplasmic Transport Proteins; C112820:RANBP3 protein, human; C062521:RCC1 protein, human; D011994:Recombinant Proteins; C091775:ran-binding protein 1; D019204:GTP-Binding Proteins; D020931:ran GTP-Binding Protein