RANGAP1

Ran GTPase-activating protein 1 is an enzyme that in humans is encoded by the RANGAP1 gene.[5][6]

RANGAP1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesRANGAP1, Fug1, RANGAP, SD, Ran GTPase activating protein 1
External IDsOMIM: 602362 MGI: 103071 HomoloGene: 55700 GeneCards: RANGAP1
Gene location (Human)
Chr.Chromosome 22 (human)[1]
Band22q13.2Start41,245,611 bp[1]
End41,286,251 bp[1]
RNA expression pattern


More reference expression data
Orthologs
SpeciesHumanMouse
Entrez

5905

19387

Ensembl

ENSG00000100401

ENSMUSG00000022391

UniProt

P46060

P46061

RefSeq (mRNA)

NM_001278651
NM_002883
NM_001317930

NM_001146174
NM_011241
NM_001358622

RefSeq (protein)

NP_001265580
NP_001304859
NP_002874

NP_001139646
NP_035371
NP_001345551

Location (UCSC)Chr 22: 41.25 – 41.29 MbChr 15: 81.7 – 81.75 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Function

RanGAP1, is a homodimeric 65-kD polypeptide that specifically induces the GTPase activity of RAN, but not of RAS by over 1,000-fold. RanGAP1 is the immediate antagonist of RCC1, a regulator molecule that keeps RAN in the active, GTP-bound state. The RANGAP1 gene encodes a 587-amino acid polypeptide. The sequence is unrelated to that of GTPase activators for other RAS-related proteins, but is 88% identical to Rangap1 (Fug1), the murine homolog of yeast Rna1p. RanGAP1 and RCC1 control RAN-dependent transport between the nucleus and cytoplasm. RanGAP1 is a key regulator of the RAN GTP/GDP cycle.[6]

Interactions

RanGAP1 is a trafficking protein which helps transport other proteins from the cytoplasm to the nucleus. Small ubiquitin-related modifier needs to be associated with it before it can be localized at the nuclear pore.[7]

RANGAP1 has been shown to interact with:

References

  1. GRCh38: Ensembl release 89: ENSG00000100401 - Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000022391 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Bischoff FR, Krebber H, Kempf T, Hermes I, Ponstingl H (Apr 1995). "Human RanGTPase-activating protein RanGAP1 is a homologue of yeast Rna1p involved in mRNA processing and transport". Proc Natl Acad Sci U S A. 92 (5): 1749–53. doi:10.1073/pnas.92.5.1749. PMC 42597. PMID 7878053.
  6. "Entrez Gene: RANGAP1 Ran GTPase activating protein 1".
  7. Hochstrasser M (2000). "Biochemistry. All in the ubiquitin family". Science. 289 (5479): 563–4. doi:10.1126/science.289.5479.563. PMID 10939967.
  8. Hillig RC, Renault L, Vetter IR, Drell T, Wittinghofer A, Becker J (Jun 1999). "The crystal structure of rna1p: a new fold for a GTPase-activating protein". Mol. Cell. 3 (6): 781–91. doi:10.1016/S1097-2765(01)80010-1. PMID 10394366.
  9. Becker J, Melchior F, Gerke V, Bischoff FR, Ponstingl H, Wittinghofer A (May 1995). "RNA1 encodes a GTPase-activating protein specific for Gsp1p, the Ran/TC4 homologue of Saccharomyces cerevisiae". J. Biol. Chem. 270 (20): 11860–5. doi:10.1074/jbc.270.20.11860. PMID 7744835.
  10. Bischoff FR, Klebe C, Kretschmer J, Wittinghofer A, Ponstingl H (Mar 1994). "RanGAP1 induces GTPase activity of nuclear Ras-related Ran". Proc. Natl. Acad. Sci. U.S.A. 91 (7): 2587–91. doi:10.1073/pnas.91.7.2587. PMC 43414. PMID 8146159.
  11. Ewing RM, Chu P, Elisma F, Li H, Taylor P, Climie S, McBroom-Cerajewski L, Robinson MD, O'Connor L, Li M, Taylor R, Dharsee M, Ho Y, Heilbut A, Moore L, Zhang S, Ornatsky O, Bukhman YV, Ethier M, Sheng Y, Vasilescu J, Abu-Farha M, Lambert JP, Duewel HS, Stewart II, Kuehl B, Hogue K, Colwill K, Gladwish K, Muskat B, Kinach R, Adams SL, Moran MF, Morin GB, Topaloglou T, Figeys D (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry". Mol. Syst. Biol. 3: 89. doi:10.1038/msb4100134. PMC 1847948. PMID 17353931.
  12. Tatham MH, Kim S, Yu B, Jaffray E, Song J, Zheng J, Rodriguez MS, Hay RT, Chen Y (Aug 2003). "Role of an N-terminal site of Ubc9 in SUMO-1, -2, and -3 binding and conjugation". Biochemistry. 42 (33): 9959–69. doi:10.1021/bi0345283. PMID 12924945.
  13. Knipscheer P, Flotho A, Klug H, Olsen JV, van Dijk WJ, Fish A, Johnson ES, Mann M, Sixma TK, Pichler A (Aug 2008). "Ubc9 sumoylation regulates SUMO target discrimination". Mol. Cell. 31 (3): 371–82. doi:10.1016/j.molcel.2008.05.022. PMID 18691969.

Further reading

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