AP4B1

AP4B1
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	2MJ7
Identifiers
Aliases	AP4B1, BETA-4, CPSQ5, SPG47, adaptor related protein complex 4 beta 1 subunit, adaptor related protein complex 4 subunit beta 1
External IDs	OMIM: 607245 MGI: 1337130 HomoloGene: 38203 GeneCards: AP4B1
Gene location (Human)
Chr.	Chromosome 1 (human)[1]
End	113,905,201 bp[1]
Gene location (Mouse)
Chr.	Chromosome 3 (mouse)[2]
End	103,822,025 bp[2]
Gene ontology
Molecular function	• GO:0001948 protein binding; • clathrin binding;
Cellular component	• membrane coat; • Golgi apparatus; • trans-Golgi network membrane; • endosome lumen; • membrane; • clathrin adaptor complex; • trans-Golgi network; • cytosol; • extrinsic component of membrane; • AP-4 adaptor complex;
Biological process	• protein transport; • intracellular protein transport; • vesicle-mediated transport; • protein targeting; • protein localization;
	Sources:Amigo / QuickGO
Orthologs
	10717
	67489
	ENSG00000134262
	ENSMUSG00000032952
	Q9Y6B7
	Q9WV76
	NM_001253852; NM_001253853; NM_001308312; NM_006594
	NM_001163552; NM_001163553; NM_026193
	NP_001240781; NP_001240782; NP_001295241; NP_006585
	NP_001157024; NP_001157025; NP_080469
	Wikidata
View/Edit Human	View/Edit Mouse

AP-4 complex subunit beta-1 is a protein that in humans is encoded by the AP4B1 gene.[5][6]

Function

The heterotetrameric adaptor protein (AP) complexes sort integral membrane proteins at various stages of the endocytic and secretory pathways. AP4 is composed of 2 large chains, beta-4 (AP4B1, this protein) and epsilon-4 (AP4E1), a medium chain, mu-4 (AP4M1), and a small chain, sigma-4 (AP4S1)[6]

Interactions

AP4B1 has been shown to interact with AP4M1.[7]

Clinical relevance

AP4-complex-mediated trafficking plays a crucial role in brain development and functioning.[8][9]

References

GRCh38: Ensembl release 89: ENSG00000134262 - Ensembl, May 2017
GRCm38: Ensembl release 89: ENSMUSG00000032952 - 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.
Dell'Angelica EC, Mullins C, Bonifacino JS (Apr 1999). "AP-4, a novel protein complex related to clathrin adaptors". J Biol Chem. 274 (11): 7278–85. doi:10.1074/jbc.274.11.7278. PMID 10066790.
"Entrez Gene: AP4B1 adaptor-related protein complex 4, beta 1 subunit".
Hirst J, Bright NA, Rous B, Robinson MS (August 1999). "Characterization of a fourth adaptor-related protein complex". Mol. Biol. Cell. 10 (8): 2787–802. doi:10.1091/mbc.10.8.2787. PMC 25515. PMID 10436028.
Abou Jamra R, Philippe O, Raas-Rothschild A, Eck SH, Graf E, Buchert R, Borck G, Ekici A, Brockschmidt FF, Nöthen MM, Munnich A, Strom TM, Reis A, Colleaux L (June 2011). "Adaptor protein complex 4 deficiency causes severe autosomal-recessive intellectual disability, progressive spastic paraplegia, shy character, and short stature". Am. J. Hum. Genet. 88 (6): 788–95. doi:10.1016/j.ajhg.2011.04.019. PMC 3113253. PMID 21620353.
"Cerebral Palsy Linked to Genetic Abnormalities". medscape.

External links

Human AP4B1 genome location and AP4B1 gene details page in the UCSC Genome Browser.
PDBe-KB provides an overview of all the structure information available in the PDB for Human AP-4 complex subunit beta-1

Hirst J, Bright NA, Rous B, Robinson MS (1999). "Characterization of a fourth adaptor-related protein complex". Mol. Biol. Cell. 10 (8): 2787–802. doi:10.1091/mbc.10.8.2787. PMC 25515. PMID 10436028.
Takatsu H, Futatsumori M, Yoshino K, et al. (2001). "Similar subunit interactions contribute to assembly of clathrin adaptor complexes and COPI complex: analysis using yeast three-hybrid system". Biochem. Biophys. Res. Commun. 284 (4): 1083–9. doi:10.1006/bbrc.2001.5081. PMID 11409905.
Cayrol C, Cougoule C, Wright M (2003). "The beta2-adaptin clathrin adaptor interacts with the mitotic checkpoint kinase BubR1". Biochem. Biophys. Res. Commun. 298 (5): 720–30. doi:10.1016/S0006-291X(02)02522-6. PMID 12419313.
Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.
Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
Rual JF, Venkatesan K, Hao T, et al. (2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. Bibcode:2005Natur.437.1173R. doi:10.1038/nature04209. PMID 16189514. S2CID 4427026.
Gregory SG, Barlow KF, McLay KE, et al. (2006). "The DNA sequence and biological annotation of human chromosome 1". Nature. 441 (7091): 315–21. Bibcode:2006Natur.441..315G. doi:10.1038/nature04727. PMID 16710414.
Ewing RM, Chu P, Elisma F, et al. (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry". Mol. Syst. Biol. 3 (1): 89. doi:10.1038/msb4100134. PMC 1847948. PMID 17353931.

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[refGRCh38Ensembl-1] GRCh38: Ensembl release 89: ENSG00000134262 - Ensembl, May 2017

[refGRCm38Ensembl-2] GRCm38: Ensembl release 89: ENSMUSG00000032952 - 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.

[pmid10066790-5] Dell'Angelica EC, Mullins C, Bonifacino JS (Apr 1999). "AP-4, a novel protein complex related to clathrin adaptors". J Biol Chem. 274 (11): 7278–85. doi:10.1074/jbc.274.11.7278. PMID 10066790.

[entrez-6] "Entrez Gene: AP4B1 adaptor-related protein complex 4, beta 1 subunit".

[pmid10436028-7] Hirst J, Bright NA, Rous B, Robinson MS (August 1999). "Characterization of a fourth adaptor-related protein complex". Mol. Biol. Cell. 10 (8): 2787–802. doi:10.1091/mbc.10.8.2787. PMC 25515. PMID 10436028.

[pmid21620353-8] Abou Jamra R, Philippe O, Raas-Rothschild A, Eck SH, Graf E, Buchert R, Borck G, Ekici A, Brockschmidt FF, Nöthen MM, Munnich A, Strom TM, Reis A, Colleaux L (June 2011). "Adaptor protein complex 4 deficiency causes severe autosomal-recessive intellectual disability, progressive spastic paraplegia, shy character, and short stature". Am. J. Hum. Genet. 88 (6): 788–95. doi:10.1016/j.ajhg.2011.04.019. PMC 3113253. PMID 21620353.

[9] "Cerebral Palsy Linked to Genetic Abnormalities". medscape.