AP1G1

Last updated
AP1G1
Protein AP1G1 PDB 1gyu.png
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases AP1G1 , ADTG, CLAPG1, adaptor related protein complex 1 gamma 1 subunit, adaptor related protein complex 1 subunit gamma 1, USRISD
External IDs OMIM: 603533 MGI: 101919 HomoloGene: 47995 GeneCards: AP1G1
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001128
NM_001030007

NM_001301211
NM_009677

RefSeq (protein)

NP_001025178
NP_001119

NP_001288140
NP_033807

Location (UCSC) Chr 16: 71.73 – 71.81 Mb Chr 8: 110.51 – 110.59 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

AP-1 complex subunit gamma-1 is a protein that in humans is encoded by the AP1G1 gene. [5] [6]

Contents

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. [7]

Interactions

AP1G1 has been shown to interact with:

Related Research Articles

Vesicular transport adaptor protein

Vesicular transport adaptor proteins are proteins involved in forming complexes that function in the trafficking of molecules from one subcellular location to another. These complexes concentrate the correct cargo molecules in vesicles that bud or extrude off of one organelle and travel to another location, where the cargo is delivered. While some of the details of how these adaptor proteins achieve their trafficking specificity has been worked out, there is still much to be learned.

GGA1 Protein-coding gene in the species Homo sapiens

ADP-ribosylation factor-binding protein GGA1 is a protein that in humans is encoded by the GGA1 gene.

AP2M1 Protein-coding gene in the species Homo sapiens

AP-2 complex subunit mu is a protein that in humans is encoded by the AP2M1 gene.

Adaptor-related protein complex 2, alpha 1

AP-2 complex subunit alpha-1 is a protein that in humans is encoded by the AP2A1 gene.

AP1M1 Protein-coding gene in the species Homo sapiens

AP-1 complex subunit mu-1 is a protein that in humans is encoded by the AP1M1 gene.

GGA3 Protein-coding gene in the species Homo sapiens

ADP-ribosylation factor-binding protein GGA3 is a protein that in humans is encoded by the GGA3 gene.

GGA2 Protein-coding gene in the species Homo sapiens

ADP-ribosylation factor-binding protein GGA2 is a protein that in humans is encoded by the GGA2 gene.

AP2A2 Protein-coding gene in the species Homo sapiens

AP-2 complex subunit alpha-2 is a protein that in humans is encoded by the AP2A2 gene.

AP1B1 Protein-coding gene in the species Homo sapiens

AP-1 complex subunit beta-1 is a protein that in humans is encoded by the AP1B1 gene.

AP2B1 Protein-coding gene in the species Homo sapiens

AP-2 complex subunit beta is a protein that in humans is encoded by the AP2B1 gene.

AP1M2

AP-1 complex subunit mu-2 is a protein that in humans is encoded by the AP1M2 gene.

AP1S1 Protein-coding gene in the species Homo sapiens

AP-1 complex subunit sigma-1A is a protein that in humans is encoded by the AP1S1 gene.

COPG2

Coatomer subunit gamma-2 is a protein that in humans is encoded by the COPG2 gene.

AP1G2 Protein-coding gene in the species Homo sapiens

AP-1 complex subunit gamma-like 2 is a protein that in humans is encoded by the AP1G2 gene.

AP1S2 Protein-coding gene in the species Homo sapiens

AP-1 complex subunit sigma-2 is a protein that in humans is encoded by the AP1S2 gene.

Synergin gamma Protein-coding gene in the species Homo sapiens

Synergin gamma also known as AP1 subunit gamma-binding protein 1 (AP1GBP1) is a protein that in humans is encoded by the SYNRG gene.

AP3S1

AP-3 complex subunit sigma-1 is a protein that in humans is encoded by the AP3S1 gene.

AP4B1

AP-4 complex subunit beta-1 is a protein that in humans is encoded by the AP4B1 gene.

Clathrin adaptor proteins, also known as adaptins, are vesicular transport adaptor proteins associated with clathrin. These proteins are synthesized in the ribosomes, processed in the endoplasmic reticulum and transported from the Golgi apparatus to the trans-Golgi network, and from there via small carrier vesicles to their final destination compartment. The association between adaptins and clathrin are important for vesicular cargo selection and transporting. Clathrin coats contain both clathrin and adaptor complexes that link clathrin to receptors in coated vesicles. Clathrin-associated protein complexes are believed to interact with the cytoplasmic tails of membrane proteins, leading to their selection and concentration. Therefore, adaptor proteins are responsible for the recruitment of cargo molecules into a growing clathrin-coated pits. The two major types of clathrin adaptor complexes are the heterotetrameric vesicular transport adaptor proteins (AP1-5), and the monomeric GGA adaptors. Adaptins are distantly related to the other main type of vesicular transport proteins, the coatomer subunits, sharing between 16% and 26% of their amino acid sequence.

Beta2-adaptin C-terminal domain

The C-terminal domain ofBeta2-adaptin is a protein domain is involved in cell trafficking by aiding import and export of substances in and out of the cell.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000166747 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000031731 - 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. 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.
  6. 1 2 3 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.
  7. "Entrez Gene: AP1G1 adaptor-related protein complex 1, gamma 1 subunit".
  8. 1 2 3 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. S2CID   15288582.
  9. 1 2 3 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.
  10. 1 2 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. S2CID   42630285.
  11. 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.
  12. 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.
  13. 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.
  14. 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. S2CID   54366866.

Further reading