Reviewed, UniProtKB/Swiss-Prot P59780 (AP3S2_HUMAN)

Names and origin

Protein names

Recommended name:
    AP-3 complex subunit sigma-2
Alternative name(s):
    Adapter-related protein complex 3 sigma-2 subunit
    AP-3 complex sigma-3B subunit
    Sigma-adaptin 3b
    Sigma3B-adaptin

Gene names

Name:

AP3S2

Organism

Homo sapiens (Human)

Taxonomic identifier

9606 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo

Protein attributes

Sequence length	193 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at transcript level.

General annotation (Comments)

Function	Part of the AP-3 complex, an adapter-related complex which is not clathrin-associated. The complex is associated with the Golgi region as well as more peripheral structures. It facilitates the budding of vesicles from the Golgi membrane and may be directly involved in trafficking to lysosomes.
Subunit structure	Adapter protein complex 3 (AP-3) is an heterotetramer composed of two large adaptins (delta-type subunit AP3D1 and beta-type subunit AP3B1 or AP3B2), a medium adaptin (mu-type subunit AP3M1 or AP3M2) and a small adaptin (sigma-type subunit APS1 or AP3S2). Interacts with CENTG2 By similarity.
Subcellular location	Golgi apparatus. Cytoplasmic vesicle membrane; Peripheral membrane protein; Cytoplasmic sideBy similarity. Note= Component of the coat surrounding the cytoplasmic face of coated vesicles located at the Golgi complex By similarity.
Tissue specificity	Present in all adult tissues examined.
Sequence similarities	Belongs to the adaptor complexes small subunit family.

Ontologies

Keywords
Biological process	Protein transport Transport
Cellular component	Cytoplasmic vesicle Golgi apparatus Membrane
Gene Ontology (GO)
Biological process	intracellular protein transport Ref.1 Traceable author statement. Source: ProtInc
Cellular component	Golgi apparatus Ref.1 Traceable author statement. Source: ProtInc
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view
Molecule processing
	Chain	1 – 193	193	AP-3 complex subunit sigma-2

Sequences

	Sequence		Length	Mass (Da)
	P59780-1 [UniParc]. Last modified July 19, 2003. Version 1. Checksum: D219EF4A989316EA	FASTA	193	22,017
	10 20 30 40 50 60 MIQAILVFNN HGKPRLVRFY QRFPEEIQQQ IVRETFHLVL KRDDNICNFL EGGSLIGGSD 70 80 90 100 110 120 YKLIYRHYAT LYFVFCVDSS ESELGILDLI QVFVETLDKC FENVCELDLI FHMDKVHYIL 130 140 150 160 170 180 QEVVMGGMVL ETNMNEIVAQ IEAQNRLEKS EGGLSAAPAR AVSAVKNINL PEIPRNINIG 190 DLNIKVPNLS QFV

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"AP-3: an adaptor-like protein complex with ubiquitous expression." Dell'Angelica E.C., Ohno H., Ooi C.E., Rabinovich E., Roche K.W., Bonifacino J.S. EMBO J. 16:917-928(1997) [PubMed: 9118953] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], TISSUE SPECIFICITY. Tissue: Brain.
[2]	"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Colon and Skin.

Cross-references

Sequence databases
EMBLGenBankDDBJ	X99459 mRNA. Translation: CAA67824.1. BC002785 mRNA. Translation: AAH02785.1. BC010020 mRNA. Translation: AAH10020.1.
RefSeq	NP_005820.1.
UniGene	Hs.632161
3D structure databases
ModBase	Search...
Genome annotation databases
Ensembl	ENSG00000157823. Homo sapiens. [Contig view]
GeneID	10239.
KEGG	hsa:10239.
Organism-specific databases
H-InvDB	HIX0012572.
HGNC	HGNC:571. AP3S2.
MIM	602416. gene.
PharmGKB	PA24863.
GenAtlas	Search...
GeneCards	Search...
Phylogenomic databases
HOVERGEN	P59780.
Gene expression databases
ArrayExpress	P59780.
CleanEx	HS_AP3S2.
GermOnline	ENSG00000157823. Homo sapiens.
Family and domain databases
InterPro	IPR016635. AP_complex_ssu. IPR000804. Clathrin_sigma/coatomer_zeta. [Graphical view]
Pfam	PF01217. Clat_adaptor_s. 1 hit. [Graphical view]
PIRSF	PIRSF015588. AP_complex_sigma. 1 hit.
PROSITE	PS00989. CLAT_ADAPTOR_S. 1 hit. [Graphical view]
ProDom	P59780. [Graphical view] [Entries sharing at least one domain]
BLOCKS	Search...
Other Resources
LinkHub	P59780.
SOURCE	Search...
ProtoNet	Search...

Entry information

Entry name

AP3S2_HUMAN

Accession

Primary (citable) accession number: P59780
Secondary accession number(s): O09077, O09149, Q99589

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 19, 2003
Last sequence update:	July 19, 2003
Last modified:	July 22, 2008
This is version 45 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HPI (Human Proteome Initiative)