AP1G1

AP1G1
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 1IU1
Identifiers
Aliases	AP1G1, ADTG, CLAPG1, adaptor related protein complex 1 gamma 1 subunit
External IDs	MGI: 101919 HomoloGene: 47995 GeneCards: AP1G1
Gene ontology Molecular function • transporter activity • protein transporter activity • GTP-dependent protein binding • Rab GTPase binding • protein binding • kinesin binding Cellular component • cytoplasm • recycling endosome • cytosol • clathrin-coated endocytic vesicle membrane • Golgi apparatus • trans-Golgi network membrane • membrane • intracellular membrane-bounded organelle • Golgi membrane • lysosomal membrane • AP-type membrane coat adaptor complex • clathrin-coated vesicle membrane • membrane coat • cytoplasmic vesicle membrane • cytoplasmic vesicle • clathrin-coated vesicle • clathrin adaptor complex Biological process • antigen processing and presentation of exogenous peptide antigen via MHC class II • regulation of defense response to virus by virus • Golgi to lysosome transport • positive regulation of natural killer cell degranulation • melanosome organization • transport • endosome to melanosome transport • protein transport • intracellular protein transport • positive regulation of natural killer cell mediated cytotoxicity • vesicle-mediated transport Sources:Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	164	11765
Ensembl	ENSG00000166747	ENSMUSG00000031731
UniProt	O43747	P22892
RefSeq (mRNA)	NM_001128 NM_001030007	NM_001301211 NM_009677
RefSeq (protein)	NP_001025178.1 NP_001119.3	NP_001288140.1
Location (UCSC)	Chr 16: 71.73 – 71.81 Mb	Chr 8: 109.78 – 109.86 Mb
PubMed search	[1]	[2]
Wikidata

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AP-1 complex subunit gamma-1 is a protein that in humans is encoded by the AP1G1 gene.^[3][4]

Function

Adaptins are important components of clathrin-coated vesicles transporting ligand-receptor complexes from the plasma membrane or from the trans-Golgi network to lysosomes. The adaptin family of proteins is composed of four classes of molecules named alpha, beta-, beta prime- and gamma- adaptins. Adaptins, together with medium and small subunits, form a heterotetrameric complex called an adaptor, whose role is to promote the formation of clathrin-coated pits and vesicles. The protein encoded by this gene is a gamma-adaptin protein and it belongs to the adaptor complexes large subunits family. Two transcript variants encoding different isoforms have been found for this gene.^[5]

Interactions

AP1G1 has been shown to interact with:

• AP1B1,^[4][6][7]
• AP1GBP1,^[8][9]
• AP1M1,^[6][7]
• AP1S1,^[4][6][7]
• NECAP2,^[10]
• RABEP1,^[8][11] and
• Synaptophysin.^[12]

References

1. "Human PubMed Reference:".
2. "Mouse PubMed Reference:".
3. Peyrard M, Parveneh S, Lagercrantz S, Ekman M, Fransson I, Sahlén S, Dumanski JP (Jun 1998). "Cloning, expression pattern, and chromosomal assignment to 16q23 of the human gamma-adaptin gene (ADTG)". Genomics. 50 (2): 275–80. doi:10.1006/geno.1998.5289. PMID 9653655.
4. Takatsu H, Sakurai M, Shin HW, Murakami K, Nakayama K (Sep 1998). "Identification and characterization of novel clathrin adaptor-related proteins". The Journal of Biological Chemistry. 273 (38): 24693–700. doi:10.1074/jbc.273.38.24693. PMID 9733768.
5. "Entrez Gene: AP1G1 adaptor-related protein complex 1, gamma 1 subunit".
6. Fölsch H, Ohno H, Bonifacino JS, Mellman I (Oct 1999). "A novel clathrin adaptor complex mediates basolateral targeting in polarized epithelial cells". Cell. 99 (2): 189–98. doi:10.1016/s0092-8674(00)81650-5. PMID 10535737.
7. Page LJ, Robinson MS (Nov 1995). "Targeting signals and subunit interactions in coated vesicle adaptor complexes". The Journal of Cell Biology. 131 (3): 619–30. doi:10.1083/jcb.131.3.619. PMC 2120623. PMID 7593184.
8. Nogi T, Shiba Y, Kawasaki M, Shiba T, Matsugaki N, Igarashi N, Suzuki M, Kato R, Takatsu H, Nakayama K, Wakatsuki S (Jul 2002). "Structural basis for the accessory protein recruitment by the gamma-adaptin ear domain". Nature Structural Biology. 9 (7): 527–31. doi:10.1038/nsb808. PMID 12042876.
9. Takatsu H, Yoshino K, Nakayama K (May 2000). "Adaptor gamma ear homology domain conserved in gamma-adaptin and GGA proteins that interact with gamma-synergin". Biochemical and Biophysical Research Communications. 271 (3): 719–25. doi:10.1006/bbrc.2000.2700. PMID 10814529.
10. Mattera R, Ritter B, Sidhu SS, McPherson PS, Bonifacino JS (Feb 2004). "Definition of the consensus motif recognized by gamma-adaptin ear domains". The Journal of Biological Chemistry. 279 (9): 8018–28. doi:10.1074/jbc.M311873200. PMID 14665628.
11. 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.
12. Horikawa HP, Kneussel M, El Far O, Betz H (Nov 2002). "Interaction of synaptophysin with the AP-1 adaptor protein gamma-adaptin". Molecular and Cellular Neurosciences. 21 (3): 454–62. doi:10.1006/mcne.2002.1191. PMID 12498786.

Further reading

• Maruyama K, Sugano S (Jan 1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1-2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
• Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, Suyama A, Sugano S (Oct 1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1-2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
• Berlioz-Torrent C, Shacklett BL, Erdtmann L, Delamarre L, Bouchaert I, Sonigo P, Dokhelar MC, Benarous R (Feb 1999). "Interactions of the cytoplasmic domains of human and simian retroviral transmembrane proteins with components of the clathrin adaptor complexes modulate intracellular and cell surface expression of envelope glycoproteins". Journal of Virology. 73 (2): 1350–61. PMC 103959. PMID 9882340.
• Page LJ, Sowerby PJ, Lui WW, Robinson MS (Sep 1999). "Gamma-synergin: an EH domain-containing protein that interacts with gamma-adaptin". The Journal of Cell Biology. 146 (5): 993–1004. doi:10.1083/jcb.146.5.993. PMC 2169493. PMID 10477754.
• Fölsch H, Ohno H, Bonifacino JS, Mellman I (Oct 1999). "A novel clathrin adaptor complex mediates basolateral targeting in polarized epithelial cells". Cell. 99 (2): 189–98. doi:10.1016/S0092-8674(00)81650-5. PMID 10535737.
• 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.
• Takatsu H, Yoshino K, Nakayama K (May 2000). "Adaptor gamma ear homology domain conserved in gamma-adaptin and GGA proteins that interact with gamma-synergin". Biochemical and Biophysical Research Communications. 271 (3): 719–25. doi:10.1006/bbrc.2000.2700. PMID 10814529.
• Nakagawa T, Setou M, Seog D, Ogasawara K, Dohmae N, Takio K, Hirokawa N (Nov 2000). "A novel motor, KIF13A, transports mannose-6-phosphate receptor to plasma membrane through direct interaction with AP-1 complex". Cell. 103 (4): 569–81. doi:10.1016/S0092-8674(00)00161-6. PMID 11106728.
• Wyss S, Berlioz-Torrent C, Boge M, Blot G, Höning S, Benarous R, Thali M (Mar 2001). "The highly conserved C-terminal dileucine motif in the cytosolic domain of the human immunodeficiency virus type 1 envelope glycoprotein is critical for its association with the AP-1 clathrin adaptor [correction of adapter]". Journal of Virology. 75 (6): 2982–92. doi:10.1128/JVI.75.6.2982-2992.2001. PMC 115924. PMID 11222723.
• Crump CM, Xiang Y, Thomas L, Gu F, Austin C, Tooze SA, Thomas G (May 2001). "PACS-1 binding to adaptors is required for acidic cluster motif-mediated protein traffic". The EMBO Journal. 20 (9): 2191–201. doi:10.1093/emboj/20.9.2191. PMC 125242. PMID 11331585.
• Takatsu H, Futatsumori M, Yoshino K, Yoshida Y, Shin HW, Nakayama K (Jun 2001). "Similar subunit interactions contribute to assembly of clathrin adaptor complexes and COPI complex: analysis using yeast three-hybrid system". Biochemical and Biophysical Research Communications. 284 (4): 1083–9. doi:10.1006/bbrc.2001.5081. PMID 11409905.
• Orzech E, Livshits L, Leyt J, Okhrimenko H, Reich V, Cohen S, Weiss A, Melamed-Book N, Lebendiker M, Altschuler Y, Aroeti B (Aug 2001). "Interactions between adaptor protein-1 of the clathrin coat and microtubules via type 1a microtubule-associated proteins". The Journal of Biological Chemistry. 276 (33): 31340–8. doi:10.1074/jbc.M101054200. PMID 11418592.
• Doray B, Kornfeld S (Jul 2001). "Gamma subunit of the AP-1 adaptor complex binds clathrin: implications for cooperative binding in coated vesicle assembly". Molecular Biology of the Cell. 12 (7): 1925–35. doi:10.1091/mbc.12.7.1925. PMC 55640. PMID 11451993.
• Shiba Y, Takatsu H, Shin HW, Nakayama K (Mar 2002). "Gamma-adaptin interacts directly with Rabaptin-5 through its ear domain". Journal of Biochemistry. 131 (3): 327–36. doi:10.1093/oxfordjournals.jbchem.a003107. PMID 11872161.
• Austin C, Boehm M, Tooze SA (Apr 2002). "Site-specific cross-linking reveals a differential direct interaction of class 1, 2, and 3 ADP-ribosylation factors with adaptor protein complexes 1 and 3". Biochemistry. 41 (14): 4669–77. doi:10.1021/bi016064j. PMID 11926829.
• Eiraku M, Hirata Y, Takeshima H, Hirano T, Kengaku M (Jul 2002). "Delta/notch-like epidermal growth factor (EGF)-related receptor, a novel EGF-like repeat-containing protein targeted to dendrites of developing and adult central nervous system neurons". The Journal of Biological Chemistry. 277 (28): 25400–7. doi:10.1074/jbc.M110793200. PMID 11950833.
• Nogi T, Shiba Y, Kawasaki M, Shiba T, Matsugaki N, Igarashi N, Suzuki M, Kato R, Takatsu H, Nakayama K, Wakatsuki S (Jul 2002). "Structural basis for the accessory protein recruitment by the gamma-adaptin ear domain". Nature Structural Biology. 9 (7): 527–31. doi:10.1038/nsb808. PMID 12042876.
• 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.