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AP1S1 adaptor related protein complex 1 subunit sigma 1 [ Homo sapiens (human) ]

Gene ID: 1174, updated on 1-Jun-2020

Summary

Official Symbol
AP1S1provided by HGNC
Official Full Name
adaptor related protein complex 1 subunit sigma 1provided by HGNC
Primary source
HGNC:HGNC:559
See related
Ensembl:ENSG00000106367 MIM:603531
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
AP19; EKV3; CLAPS1; MEDNIK; SIGMA1A
Summary
The protein encoded by this gene is part of the clathrin coat assembly complex which links clathrin to receptors in coated vesicles. These vesicles are involved in endocytosis and Golgi processing. This protein, as well as beta-prime-adaptin, gamma-adaptin, and the medium (mu) chain AP47, form the AP-1 assembly protein complex located at the Golgi vesicle. [provided by RefSeq, Jul 2008]
Expression
Ubiquitous expression in brain (RPKM 52.8), colon (RPKM 23.4) and 23 other tissues See more
Orthologs

Genomic context

See AP1S1 in Genome Data Viewer
Location:
7q22.1
Exon count:
5
Annotation release Status Assembly Chr Location
109.20200522 current GRCh38.p13 (GCF_000001405.39) 7 NC_000007.14 (101154476..101161276)
105 previous assembly GRCh37.p13 (GCF_000001405.25) 7 NC_000007.13 (100797685..100804557)

Chromosome 7 - NC_000007.14Genomic Context describing neighboring genes Neighboring gene Sharpr-MPRA regulatory region 9046 Neighboring gene serpin family E member 1 Neighboring gene Sharpr-MPRA regulatory region 5920 Neighboring gene microRNA 4653 Neighboring gene VGF nerve growth factor inducible Neighboring gene N-acetyltransferase 16 (putative)

Genomic regions, transcripts, and products

Expression

  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

HIV-1 interactions

Protein interactions

Protein Gene Interaction Pubs
Envelope transmembrane glycoprotein gp41 env The highly conserved C-terminal dileucine motif (residues 851-856) in the cytosolic domain of HIV-1 gp41 interacts with clathrin-associated AP-1 adaptor complexes PubMed
env The cytoplasmic domain (residues 707-856) of HIV-1 gp41 interacts with whole clathrin-associated AP-1 and AP-2 adaptor complexes PubMed
Nef nef Adaptor-related protein complex 1 (AP-1) is necessary for cross-presentation by MHC-I HLA-A and HLA-B molecules containing a cytoplasmic tail tyrosine signal and that HIV-1 Nef inhibits the cross-presentation in antigen-presenting cells PubMed
nef Exogenous Nef and TNF-alpha synergistically activate NF-kappaB and AP-1 resulting in enhancing viral replication in both chronically infected promonocytic cells and acutely infected primary macrophages PubMed
nef HIV-1 Nef stabilizes AP-1 complexes on endosomal membranes after ADP-ribosylation factor-1 (ARF1) -dependent attachment PubMed
nef The dileucine motif (residues 164-165) in HIV-1 Nef is required for binding to AP-1 complexes and stabilizing their association with membranes PubMed
nef A leucine-based motif near the C-terminus of HIV-1 Nef interacts with AP-1 complexes; residues 164 and 165 in Nef are required for the interaction with AP-1 PubMed
Vpu vpu Crystal structure indicates that Vpu L66 and V67 embed into the hydrophobic pocket on AP1 sigma 1 to accommodate the canonical dileucine residues, while Vpu E62 forms a salt bridge with R15 of AP1 gamma 1 PubMed
vpu Fusion of the Vpu cytoplasmic domain (residues 28-80) to the BST2 cytoplasmic domain (residues 1-21) enhances binding to the beta, mu, and sigma subunits of adaptor-related protein complex 1 (AP1) in cells PubMed

Go to the HIV-1, Human Interaction Database

Interactions

Products Interactant Other Gene Complex Source Pubs Description

General gene information

Markers

Homology

Clone Names

  • FLJ92436

Gene Ontology Provided by GOA

Process Evidence Code Pubs
antigen processing and presentation of exogenous peptide antigen via MHC class II TAS
Traceable Author Statement
more info
 
intracellular protein transport IEA
Inferred from Electronic Annotation
more info
 
receptor-mediated endocytosis TAS
Traceable Author Statement
more info
PubMed 
regulation of defense response to virus by virus TAS
Traceable Author Statement
more info
 
response to virus IEP
Inferred from Expression Pattern
more info
PubMed 
retrograde transport, endosome to Golgi IEA
Inferred from Electronic Annotation
more info
 
vesicle-mediated transport IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
Component Evidence Code Pubs
AP-1 adaptor complex TAS
Traceable Author Statement
more info
PubMed 
Golgi apparatus IDA
Inferred from Direct Assay
more info
 
Golgi membrane TAS
Traceable Author Statement
more info
 
clathrin-coated pit IEA
Inferred from Electronic Annotation
more info
 
cytoplasmic vesicle membrane TAS
Traceable Author Statement
more info
 
cytosol TAS
Traceable Author Statement
more info
 
intracellular membrane-bounded organelle IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
intracellular membrane-bounded organelle IDA
Inferred from Direct Assay
more info
 
lysosomal membrane TAS
Traceable Author Statement
more info
 
membrane HDA PubMed 
terminal bouton IEA
Inferred from Electronic Annotation
more info
 
trans-Golgi network membrane TAS
Traceable Author Statement
more info
 

General protein information

Preferred Names
AP-1 complex subunit sigma-1A
Names
HA1 19 kDa subunit
adapter-related protein complex 1 sigma-1A subunit
adaptor protein complex AP-1 subunit sigma-1A
adaptor related protein complex 1 sigma 1 subunit
adaptor-related protein complex 1 subunit sigma-1A
clathrin assembly protein complex 1 sigma-1A small chain
clathrin coat assembly protein AP19
clathrin-associated/assembly/adaptor protein, small 1 (19kD)
golgi adaptor HA1/AP1 adaptin sigma-1A subunit
sigma1A subunit of AP-1 clathrin adaptor complex
sigma1A-adaptin

NCBI Reference Sequences (RefSeq)

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_033082.2 RefSeqGene

    Range
    5079..11879
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001283.5NP_001274.1  AP-1 complex subunit sigma-1A

    See identical proteins and their annotated locations for NP_001274.1

    Status: REVIEWED

    Source sequence(s)
    AC004876, AK312151, AL578356, CA426442
    Consensus CDS
    CCDS47669.1
    UniProtKB/Swiss-Prot
    P61966
    UniProtKB/TrEMBL
    A0A024QYT6
    Related
    ENSP00000336666.5, ENST00000337619.11
    Conserved Domains (1) summary
    cd14831
    Location:3145
    AP1_sigma; AP-1 complex subunit sigma

RefSeqs of Annotated Genomes: Homo sapiens Updated Annotation Release 109.

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p13 Primary Assembly

Genomic

  1. NC_000007.14 Reference GRCh38.p13 Primary Assembly

    Range
    101154476..101161276
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Suppressed Reference Sequence(s)

The following Reference Sequences have been suppressed. Explain

  1. NM_057089.2: Suppressed sequence

    Description
    NM_057089.2: This RefSeq was permanently suppressed because currently there is not sufficient data to support this transcript.
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