RAB8A

RAB8A
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	3QBT, 3TNF, 4LHV, 4LHW, 4LHX, 4LHY, 4LHZ, 4LI0
Identifiers
Aliases	RAB8A, MEL, RAB8, member RAS oncogene family
External IDs	OMIM: 165040; MGI: 96960; HomoloGene: 100934; GeneCards: RAB8A; OMA:RAB8A - orthologs
Gene location (Human)
Chr.	Chromosome 19 (human)
End	16,134,234 bp
Gene location (Mouse)
Chr.	Chromosome 8 (mouse)
End	72,937,748 bp
RNA expression pattern
	Top expressed in
	monocyte; ; mucosa of ileum; ; bone marrow cell; ; duodenum; ; mucosa of sigmoid colon; ; jejunal mucosa; ; blood; ; epithelium of colon; ; granulocyte; ; human penis;
	Top expressed in
	granulocyte; ; molar; ; yolk sac; ; tibiofemoral joint; ; thymus; ; duodenum; ; right kidney; ; epithelium of small intestine; ; ventricular zone; ; medial ganglionic eminence;
	More reference expression data
	More reference expression data
Gene ontology
Molecular function	nucleotide binding; GDP binding; GTP binding; myosin V binding; protein binding; protein kinase binding; GTPase activity;
Cellular component	cytoplasm; ciliary basal body; recycling endosome; cytosol; endosome; centrosome; phagocytic vesicle membrane; Golgi apparatus; cell projection; membrane; postsynaptic density; synaptic vesicle; Golgi membrane; cilium; ciliary base; soma; dendrite; phagocytic vesicle; centriole; extracellular exosome; cytoskeleton; cytoplasmic vesicle; extracellular matrix; plasma membrane; trans-Golgi network transport vesicle; trans-Golgi network membrane; dendritic spine; recycling endosome membrane; non-motile cilium; secretory granule membrane; midbody; synapse; glutamatergic synapse;
Biological process	regulation of long-term neuronal synaptic plasticity; regulation of protein transport; axonogenesis; vesicle docking involved in exocytosis; protein secretion; regulation of protein localization; cell projection organization; G2/M transition of mitotic cell cycle; Golgi vesicle fusion to target membrane; protein transport; protein localization to plasma membrane; cellular response to insulin stimulus; cilium assembly; ciliary basal body-plasma membrane docking; neurotransmitter receptor transport to postsynaptic membrane; regulation of autophagy; autophagy; post-translational protein modification; regulation of exocytosis; transport; intracellular protein transport; Rab protein signal transduction; neurotransmitter receptor transport, endosome to postsynaptic membrane; vesicle-mediated transport in synapse;
	Sources:Amigo / QuickGO
Orthologs
	4218
	17274
	ENSG00000167461
	ENSMUSG00000003037
	P61006
	P55258
	NM_005370
	NM_023126
	NP_005361; NP_005361.2
	NP_075615
	Wikidata
View/Edit Human	View/Edit Mouse

Ras-related protein Rab-8A is a protein that in humans is encoded by the RAB8A gene.⁵⁶⁷

Function

The protein encoded by this gene is a member of the RAS superfamily which are small GTP/GDP-binding proteins with an average size of 200 amino acids. The RAS-related proteins of the RAB/YPT family may play a role in the transport of proteins from the endoplasmic reticulum to the Golgi and the plasma membrane. This protein shares 97%, 96%, and 51% similarity with the dog RAB8, mouse MEL, and mouse YPT1 proteins, respectively and contains the 4 GTP/GDP-binding sites that are present in all the RAS proteins. The putative effector-binding site of this protein is similar to that of the RAB/YPT proteins. However, this protein contains a C-terminal CAAX motif that is characteristic of many RAS superfamily members but which is not found in YPT1 and the majority of RAB proteins. Although this gene was isolated as a transforming gene from a melanoma cell line, no link between MEL and melanoma has been demonstrated. This oncogene is located 800 kb distal to MY09B on chromosome 19p13.1.⁷

Interactions

RAB8A has been shown to interact with Optineurin⁸ and MAP4K2.⁹

References

GRCh38: Ensembl release 89: ENSG00000167461 – Ensembl, May 2017
GRCm38: Ensembl release 89: ENSMUSG00000003037 – Ensembl, May 2017
"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
Nimmo ER, Sanders PG, Padua RA, Hughes D, Williamson R, Johnson KJ (Aug 1991). "The MEL gene: a new member of the RAB/YPT class of RAS-related genes". Oncogene. 6 (8): 1347–51. PMID 1886711.
Huber LA, Pimplikar S, Parton RG, Virta H, Zerial M, Simons K (Oct 1993). "Rab8, a small GTPase involved in vesicular traffic between the TGN and the basolateral plasma membrane". The Journal of Cell Biology. 123 (1): 35–45. doi:10.1083/jcb.123.1.35. PMC 2119815. PMID 8408203.
"Entrez Gene: RAB8A RAB8A, member RAS oncogene family".
Hattula K, Peränen J (2000). "FIP-2, a coiled-coil protein, links Huntingtin to Rab8 and modulates cellular morphogenesis". Current Biology. 10 (24): 1603–6. Bibcode:2000CBio...10.1603H. doi:10.1016/S0960-9822(00)00864-2. PMID 11137014. S2CID 12836037.
Ren M, Zeng J, De Lemos-Chiarandini C, Rosenfeld M, Adesnik M, Sabatini DD (May 1996). "In its active form, the GTP-binding protein rab8 interacts with a stress-activated protein kinase". Proceedings of the National Academy of Sciences of the United States of America. 93 (10): 5151–5. Bibcode:1996PNAS...93.5151R. doi:10.1073/pnas.93.10.5151. PMC 39423. PMID 8643544.

Further reading

Newport J, Roemer MI (Mar 1975). "Comparative perinatal mortality under medical care foundations and other delivery models". Inquiry. 12 (1): 10–7. PMID 123217.
Nimmo E, Padua RA, Hughes D, Brook JD, Williamson R, Johnson KJ (Mar 1989). "Confirmation and refinement of the localisation of the c-MEL locus on chromosome 19 by physical and genetic mapping". Human Genetics. 81 (4): 382–4. doi:10.1007/BF00283697. PMID 2564840. S2CID 25002878.
Zahraoui A, Joberty G, Arpin M, Fontaine JJ, Hellio R, Tavitian A, Louvard D (Jan 1994). "A small rab GTPase is distributed in cytoplasmic vesicles in non polarized cells but colocalizes with the tight junction marker ZO-1 in polarized epithelial cells". The Journal of Cell Biology. 124 (1–2): 101–15. doi:10.1083/jcb.124.1.101. PMC 2119893. PMID 8294494.
Joberty G, Tavitian A, Zahraoui A (Sep 1993). "Isoprenylation of Rab proteins possessing a C-terminal CaaX motif". FEBS Letters. 330 (3): 323–8. Bibcode:1993FEBSL.330..323J. doi:10.1016/0014-5793(93)80897-4. PMID 8375503. S2CID 29047580.
Ren M, Zeng J, De Lemos-Chiarandini C, Rosenfeld M, Adesnik M, Sabatini DD (May 1996). "In its active form, the GTP-binding protein rab8 interacts with a stress-activated protein kinase". Proceedings of the National Academy of Sciences of the United States of America. 93 (10): 5151–5. Bibcode:1996PNAS...93.5151R. doi:10.1073/pnas.93.10.5151. PMC 39423. PMID 8643544.
Bähler M, Kehrer I, Gordon L, Stoffler HE, Olsen AS (Jul 1997). "Physical mapping of human myosin-IXB (MYO9B), the human orthologue of the rat myosin myr 5, to chromosome 19p13.1". Genomics. 43 (1): 107–9. doi:10.1006/geno.1997.4776. PMID 9226381.
Wilson AL, Erdman RA, Castellano F, Maltese WA (Aug 1998). "Prenylation of Rab8 GTPase by type I and type II geranylgeranyl transferases". The Biochemical Journal. 333 (Pt 3): 497–504. doi:10.1042/bj3330497. PMC 1219609. PMID 9677305.
Bao S, Zhu J, Garvey WT (Nov 1998). "Cloning of Rab GTPases expressed in human skeletal muscle: studies in insulin-resistant subjects". Hormone and Metabolic Research. 30 (11): 656–62. doi:10.1055/s-2007-978953. PMID 9918381. S2CID 23540699.
Shisheva A, Chinni SR, DeMarco C (Sep 1999). "General role of GDP dissociation inhibitor 2 in membrane release of Rab proteins: modulations of its functional interactions by in vitro and in vivo structural modifications". Biochemistry. 38 (36): 11711–21. doi:10.1021/bi990200r. PMID 10512627.
Hattula K, Peränen J (2001). "FIP-2, a coiled-coil protein, links Huntingtin to Rab8 and modulates cellular morphogenesis". Current Biology. 10 (24): 1603–6. Bibcode:2000CBio...10.1603H. doi:10.1016/S0960-9822(00)00864-2. PMID 11137014. S2CID 12836037.
Kuroda TS, Fukuda M, Ariga H, Mikoshiba K (Mar 2002). "The Slp homology domain of synaptotagmin-like proteins 1-4 and Slac2 functions as a novel Rab27A binding domain". The Journal of Biological Chemistry. 277 (11): 9212–8. doi:10.1074/jbc.M112414200. PMID 11773082.
Hattula K, Furuhjelm J, Arffman A, Peränen J (Sep 2002). "A Rab8-specific GDP/GTP exchange factor is involved in actin remodeling and polarized membrane transport". Molecular Biology of the Cell. 13 (9): 3268–80. doi:10.1091/mbc.E02-03-0143. PMC 124888. PMID 12221131.
Fukuda M (Apr 2003). "Distinct Rab binding specificity of Rim1, Rim2, rabphilin, and Noc2. Identification of a critical determinant of Rab3A/Rab27A recognition by Rim2". The Journal of Biological Chemistry. 278 (17): 15373–80. doi:10.1074/jbc.M212341200. PMID 12578829.
Lau AS, Mruk DD (Apr 2003). "Rab8B GTPase and junction dynamics in the testis". Endocrinology. 144 (4): 1549–63. doi:10.1210/en.2002-220893. PMID 12639940.
Linder MD, Uronen RL, Hölttä-Vuori M, van der Sluijs P, Peränen J, Ikonen E (Jan 2007). "Rab8-dependent recycling promotes endosomal cholesterol removal in normal and sphingolipidosis cells". Molecular Biology of the Cell. 18 (1): 47–56. doi:10.1091/mbc.E06-07-0575. PMC 1751315. PMID 17050734.

[refGRCh38Ensembl-1] GRCh38: Ensembl release 89: ENSG00000167461 – Ensembl, May 2017

[refGRCm38Ensembl-2] GRCm38: Ensembl release 89: ENSMUSG00000003037 – 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.

[pmid1886711-5] Nimmo ER, Sanders PG, Padua RA, Hughes D, Williamson R, Johnson KJ (Aug 1991). "The MEL gene: a new member of the RAB/YPT class of RAS-related genes". Oncogene. 6 (8): 1347–51. PMID 1886711.

[pmid8408203-6] Huber LA, Pimplikar S, Parton RG, Virta H, Zerial M, Simons K (Oct 1993). "Rab8, a small GTPase involved in vesicular traffic between the TGN and the basolateral plasma membrane". The Journal of Cell Biology. 123 (1): 35–45. doi:10.1083/jcb.123.1.35. PMC 2119815. PMID 8408203.

[entrez-7] "Entrez Gene: RAB8A RAB8A, member RAS oncogene family".

[pmid11137014-8] Hattula K, Peränen J (2000). "FIP-2, a coiled-coil protein, links Huntingtin to Rab8 and modulates cellular morphogenesis". Current Biology. 10 (24): 1603–6. Bibcode:2000CBio...10.1603H. doi:10.1016/S0960-9822(00)00864-2. PMID 11137014. S2CID 12836037.

[pmid8643544-9] Ren M, Zeng J, De Lemos-Chiarandini C, Rosenfeld M, Adesnik M, Sabatini DD (May 1996). "In its active form, the GTP-binding protein rab8 interacts with a stress-activated protein kinase". Proceedings of the National Academy of Sciences of the United States of America. 93 (10): 5151–5. Bibcode:1996PNAS...93.5151R. doi:10.1073/pnas.93.10.5151. PMC 39423. PMID 8643544.

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