Gene: Ap2b1

Basic information

Tag Content
Uniprot ID Q9DBG3; Q80XJ4;
Entrez ID 71770
Genbank protein ID AAH46772.1; BAB23711.1;
Genbank nucleotide ID NM_027915.3; NM_001035854.2; XM_017314772.1; XM_006534258.3;
Ensembl protein ID ENSMUSP00000070714; ENSMUSP00000018875;
Ensembl nucleotide ID ENSMUSG00000035152
Gene name AP-2 complex subunit beta
Gene symbol Ap2b1
Organism Mus musculus
NCBI taxa ID 10090
Cleft type CPO
Developmental stage E14.5
Data sources Manually collected
Reference 20500056; 25807483;
Functional description Component of the adaptor protein complex 2 (AP-2). Adaptor protein complexes function in protein transport via transport vesicles in different membrane traffic pathways. Adaptor protein complexes are vesicle coat components and appear to be involved in cargo selection and vesicle formation. AP-2 is involved in clathrin-dependent endocytosis in which cargo proteins are incorporated into vesicles surrounded by clathrin (clathrin-coated vesicles, CCVs) which are destined for fusion with the early endosome. The clathrin lattice serves as a mechanical scaffold but is itself unable to bind directly to membrane components. Clathrin-associated adaptor protein (AP) complexes which can bind directly to both the clathrin lattice and to the lipid and protein components of membranes are considered to be the major clathrin adaptors contributing the CCV formation. AP-2 also serves as a cargo receptor to selectively sort the membrane proteins involved in receptor-mediated endocytosis. AP-2 seems to play a role in the recycling of synaptic vesicle membranes from the presynaptic surface. AP-2 recognizes Y-X-X-[FILMV] (Y-X-X-Phi) and [ED]-X-X-X-L-[LI] endocytosis signal motifs within the cytosolic tails of transmembrane cargo molecules. AP-2 may also play a role in maintaining normal post-endocytic trafficking through the ARF6-regulated, non-clathrin pathway. During long-term potentiation in hippocampal neurons, AP-2 is responsible for the endocytosis of ADAM10 (PubMed:23676497). The AP-2 beta subunit acts via its C-terminal appendage domain as a scaffolding platform for endocytic accessory proteins; at least some clathrin-associated sorting proteins (CLASPs) are recognized by their [DE]-X(1,2)-F-X-X-[FL]-X-X-X-R motif. The AP-2 beta subunit binds to clathrin heavy chain, promoting clathrin lattice assembly; clathrin displaces at least some CLASPs from AP2B1 which probably then can be positioned for further coat assembly (By similarity).
Sequence
MTDSKYFTTN KKGEIFELKA ELNNEKKEKR KEAVKKVIAA MTVGKDVSSL FPDVVNCMQT 60
DNLELKKLVY LYLMNYAKSQ PDMAIMAVNS FVKDCEDPNP LIRALAVRTM GCIRVDKITE 120
YLCEPLRKCL KDEDPYVRKT AAVCVAKLHD INAQMVEDQG FLDSLRDLIA DSNPMVVANA 180
VAALSEISES HPNSNLLDLN PQNINKLLTA LNECTEWGQI FILDCLSNYN PKDDREAQSI 240
CERVTPRLSH ANSAVVLSAV KVLMKFLELL PKDSDYYNML LKKLAPPLVT LLSGEPEVQY 300
VALRNINLIV QKRPEILKQE IKVFFVKYND PIYVKLEKLD IMIRLASQAN IAQVLAELKE 360
YATEVDVDFV RKAVRAIGRC AIKVEQSAER CVSTLLDLIQ TKVNYVVQEA IVVIRDIFRK 420
YPNKYESIIA TLCENLDSLD EPDARAAMIW IVGEYAERID NADELLESFL EGFHDESTQV 480
QLTLLTAIVK LFLKKPSETQ ELVQQVLSLA TQDSDNPDLR DRGYIYWRLL STDPVTAKEV 540
VLSEKPLISE ETDLIEPTLL DELICHIGSL ASVYHKPPNA FVEGSHGIHR KHLPIHHGST 600
DAGDSPVGTT TTTNLEQPQV IPSQGDLLGD LLNLDLGPPV NVPQVSSMQM GAVDLLGGGL 660
DSLVGQSFIP SSVPATFAPS PTPAVVSSGL NDLFELSTGI GMAPGGYVAP KAVWLPAVKA 720
KGLEISGTFT HRQGHIYMEM NFTNKALQHM TDFAIQFNKN SFGVIPSTPL AIHTPLMPNQ 780
SIDVSLPLNT LGPVMKMEPL NNLQVAVKNN IDVFYFSCLI PLNVLFVEDG KMERQVFLAT 840
WKDIPNENEL QFQIKECHLN ADTVSSKLQN NNVYTIAKRN VEGQDMLYQS LKLTNGIWIL 900
AELRIQPGNP NYTLSLKCRA PEVSQYIYQV YDSILKN 937

Abbreviation :
CLO : cleft lip only. CPO : cleft palate only. CLP : cleft lip and palate. CL/P : cleft lip with/without cleft palate.
For humans: CL/P, CLO, CPO, and CLP. For mice: CLO, CLP, and CPO.

Gene expression information

Gene expression during embryonic days (E11.5~E18.5) ~ adult days (Ps) in the lip and palate tissues. (X-axis: days, Y-axis: tissues)

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Protein structural annotations

3D structure in PDB database


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Protein disorder information

Orthologous information

Relation Gene symbol Entrez ID UniProt ID Cleft type Developmental stage Species Evidence Details
1:1 orthologAP2B1480605E2RIV1Canis lupus familiarisPredictionMore>>
1:1 orthologAP2B1A0A452F9H3Capra hircusPredictionMore>>
1:1 orthologAP2B1163P63010Homo sapiensPredictionMore>>
1:1 orthologAp2b171770Q9DBG3CPOE14.5Mus musculusPublicationMore>>
1:1 orthologAP2B1454587K7CXZ7Pan troglodytesPredictionMore>>
1:1 orthologAP2B1A0A480V5W1Sus scrofaPredictionMore>>
1:1 orthologAP2B1100347007G1SL02Oryctolagus cuniculusPredictionMore>>
1:1 orthologAp2b1140670P62944Rattus norvegicusPredictionMore>>
1:1 orthologap2b1E9QC84Danio rerioPredictionMore>>

Other genetic variants/mutations

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Gene Ontology (GO)/biological pathways

GO:Molecular Function

GO ID GO Term Evidence
GO:0005515 protein bindingIPI
GO:0030276 clathrin bindingISO
GO:0044877 protein-containing complex bindingIEA

GO:Biological Process

GO ID GO Term Evidence
GO:0003279 cardiac septum developmentIMP
GO:0003281 ventricular septum developmentIMP
GO:0006886 intracellular protein transportIEA
GO:0007507 heart developmentIMP
GO:0016192 vesicle-mediated transportIBA
GO:0035904 aorta developmentIMP
GO:0045807 positive regulation of endocytosisIEA
GO:0048268 clathrin coat assemblyIEA
GO:0060976 coronary vasculature developmentIMP
GO:0072583 clathrin-dependent endocytosisIDA
GO:0098884 postsynaptic neurotransmitter receptor internalizationIDA
GO:0098884 postsynaptic neurotransmitter receptor internalizationIMP
GO:0099590 neurotransmitter receptor internalizationIMP
GO:1901215 negative regulation of neuron deathIEA
GO:1905477 positive regulation of protein localization to membraneIEA

GO:Cellular Component

GO ID GO Term Evidence
GO:0030122 AP-2 adaptor complexIDA
GO:0030131 clathrin adaptor complexISO
GO:0098794 postsynapseIEA
GO:0098978 glutamatergic synapseIDA
GO:0098978 glutamatergic synapseIMP

Reactome Pathway

Reactome ID Reactome Term Evidence

Functional annotations

Keywords

Keyword ID Keyword Term
KW-0002 3D-structure
KW-0007 Acetylation
KW-0025 Alternative splicing
KW-1003 Cell membrane
KW-0168 Coated pit
KW-0254 Endocytosis
KW-0472 Membrane
KW-0597 Phosphoprotein
KW-0653 Protein transport
KW-1185 Reference proteome
KW-0813 Transport

Interpro

InterPro ID InterPro Term
IPR026739 AP_beta
IPR016342 AP_complex_bsu_1_2_4
IPR011989 ARM-like
IPR016024 ARM-type_fold
IPR000225 Armadillo
IPR015151 B-adaptin_app_sub_C
IPR002553 Clathrin/coatomer_adapt-like_N
IPR008152 Clathrin_a/b/g-adaptin_app_Ig
IPR013041 Clathrin_app_Ig-like_sf
IPR013037 Clathrin_b-adaptin_app_Ig-like
IPR009028 Coatomer/calthrin_app_sub_C
IPR012295 TBP_dom_sf

PROSITE

PROSITE ID PROSITE Term

Pfam

Pfam ID Pfam Term
PF01602 Adaptin_N
PF02883 Alpha_adaptinC2
PF09066 B2-adapt-app_C

Protein-protein interaction

Protein-miRNA interaction