GGA2

Golgi-associated, gamma adaptin ear containing, ARF binding protein 2

PDB rendering based on 1mhq.
Available structures
PDB Ortholog search: PDBe, RCSB
Identifiers
Symbols GGA2 ; VEAR
External IDs OMIM: 606005 MGI: 1921355 HomoloGene: 22860 GeneCards: GGA2 Gene
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 23062 74105
Ensembl ENSG00000103365 ENSMUSG00000030872
UniProt Q9UJY4 Q6P5E6
RefSeq (mRNA) NM_015044 NM_028758
RefSeq (protein) NP_055859 NP_083034
Location (UCSC) Chr 16:
23.46 – 23.52 Mb
Chr 7:
121.99 – 122.02 Mb
PubMed search

ADP-ribosylation factor-binding protein GGA2 is a protein that in humans is encoded by the GGA2 gene.[1][2][3]

Function

This gene encodes a member of the Golgi-localized, gamma adaptin ear-containing, ARF-binding (GGA) family. This family includes ubiquitous coat proteins that regulate the trafficking of proteins between the trans-Golgi network and the lysosome. These proteins share an amino-terminal VHS domain which mediates sorting of the mannose 6-phosphate receptors at the trans-Golgi network. They also contain a carboxy-terminal region with homology to the ear domain of gamma-adaptins. This family member may play a significant role in cargo molecules regulation and clathrin-coated vesicle assembly.[3]

Interactions

GGA2 has been shown to interact with RABEP1,[4] Sortilin 1,[5][6] BACE2[7] and CLINT1.[8][9]

References

  1. Hirst J, Lui WW, Bright NA, Totty N, Seaman MN, Robinson MS (Apr 2000). "A family of proteins with gamma-adaptin and VHS domains that facilitate trafficking between the trans-Golgi network and the vacuole/lysosome". The Journal of Cell Biology 149 (1): 67–80. doi:10.1083/jcb.149.1.67. PMC 2175106. PMID 10747088.
  2. Boman AL, Zhang CJ, Zhu X, Kahn RA (Apr 2000). "A family of ADP-ribosylation factor effectors that can alter membrane transport through the trans-Golgi". Molecular Biology of the Cell 11 (4): 1241–55. doi:10.1091/mbc.11.4.1241. PMC 14844. PMID 10749927.
  3. 1 2 "Entrez Gene: GGA2 golgi associated, gamma adaptin ear containing, ARF binding protein 2".
  4. Mattera R, Arighi CN, Lodge R, Zerial M, Bonifacino JS (Jan 2003). "Divalent interaction of the GGAs with the Rabaptin-5-Rabex-5 complex". The EMBO Journal 22 (1): 78–88. doi:10.1093/emboj/cdg015. PMC 140067. PMID 12505986.
  5. Nielsen MS, Madsen P, Christensen EI, Nykjaer A, Gliemann J, Kasper D, Pohlmann R, Petersen CM (May 2001). "The sortilin cytoplasmic tail conveys Golgi-endosome transport and binds the VHS domain of the GGA2 sorting protein". The EMBO Journal 20 (9): 2180–90. doi:10.1093/emboj/20.9.2180. PMC 125444. PMID 11331584.
  6. Jacobsen L, Madsen P, Nielsen MS, Geraerts WP, Gliemann J, Smit AB, Petersen CM (Jan 2002). "The sorLA cytoplasmic domain interacts with GGA1 and -2 and defines minimum requirements for GGA binding". FEBS Letters 511 (1-3): 155–8. doi:10.1016/S0014-5793(01)03299-9. PMID 11821067.
  7. He X, Chang WP, Koelsch G, Tang J (Jul 2002). "Memapsin 2 (beta-secretase) cytosolic domain binds to the VHS domains of GGA1 and GGA2: implications on the endocytosis mechanism of memapsin 2". FEBS Letters 524 (1-3): 183–7. doi:10.1016/S0014-5793(02)03052-1. PMID 12135764.
  8. Wasiak S, Legendre-Guillemin V, Puertollano R, Blondeau F, Girard M, de Heuvel E, Boismenu D, Bell AW, Bonifacino JS, McPherson PS (Sep 2002). "Enthoprotin: a novel clathrin-associated protein identified through subcellular proteomics". The Journal of Cell Biology 158 (5): 855–62. doi:10.1083/jcb.200205078. PMC 2173151. PMID 12213833.
  9. Kalthoff C, Groos S, Kohl R, Mahrhold S, Ungewickell EJ (Nov 2002). "Clint: a novel clathrin-binding ENTH-domain protein at the Golgi". Molecular Biology of the Cell 13 (11): 4060–73. doi:10.1091/mbc.E02-03-0171. PMC 133614. PMID 12429846.

Further reading

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