Reviewed, UniProtKB/Swiss-Prot Q6DT45 (KLK3_MACFA)

Names and origin

Protein names

Recommended name:
    Prostate-specific antigen
      Short name=PSA
    EC=3.4.21.77
Alternative name(s):
    Kallikrein-3
    Semenogelase

Gene names

Name:	KLK3
Synonyms:	APS

Organism

Macaca fascicularis (Crab eating macaque) (Cynomolgus monkey)

Taxonomic identifier

9541 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Cercopithecidae › Cercopithecinae › Macaca

Protein attributes

Sequence length	261 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence at transcript level.

General annotation (Comments)

Function	Hydrolyzes semenogelin-1 thus leading to the liquefaction of the seminal coagulum By similarity.
Catalytic activity	Preferential cleavage: -Tyr-|-Xaa-.
Subcellular location	Secreted By similarity.
Sequence similarities	Belongs to the peptidase S1 family. Kallikrein subfamily. Contains 1 peptidase S1 domain.

Ontologies

Keywords
Cellular component	Secreted
Domain	Signal
Molecular function	Hydrolase Protease Serine protease
PTM	Disulfide bond Glycoprotein Zymogen
Gene Ontology (GO)
Biological process	proteolysis Inferred from electronic annotation. Source: InterPro
Cellular component	extracellular region Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	serine-type endopeptidase activity Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Signal peptide	1 – 18	18	Potential
	Propeptide	19 – 24	6	Activation peptide		PRO_0000027933
	Chain	25 – 261	237	Prostate-specific antigen		PRO_0000027934
Regions
	Domain	25 – 258	234	Peptidase S1
Sites
	Active site	65	1	Charge relay system By similarity
	Active site	120	1	Charge relay system By similarity
	Active site	213	1	Charge relay system By similarity
Amino acid modifications
	Glycosylation	102	1	N-linked (GlcNAc...) Potential
	Disulfide bond	31 ↔ 173		By similarity
	Disulfide bond	50 ↔ 66		By similarity
	Disulfide bond	152 ↔ 219		By similarity
	Disulfide bond	184 ↔ 198		By similarity
	Disulfide bond	209 ↔ 234		By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q6DT45-1 [UniParc]. Last modified August 16, 2004. Version 1. Checksum: 8EC937876F98CBBE	FASTA	261	28,820
	10 20 30 40 50 60 MWVLVVFLTL SVTWIGAAPL ILSRIVGGWE CEKHSQPWQV LVASHGRAVC GGVLVHPQWV 70 80 90 100 110 120 LTAAHCIRSH SVILLGRHNP YYPEDTGQVF QVSHSFPHPL YNMSLLKNRY LGPGDDSSHD 130 140 150 160 170 180 LMLLRLSEPA EITDAVQVLD LPTWEPELGT TCYASGWGSI EPEEHLTPKK LQCVDLHIIS 190 200 210 220 230 240 NDVCAQVHSQ KVTKFMLCAG SWMGGKSTCS GDSGGPLVCD GVLQGITSWG SQPCALPRRP 250 260 SLYTKVVRYR KWIQDTIMAN P

References

[1]	"Cloning and sequencing of the cynomolgus monkey prostate specific antigen cDNA." Marshall D.J., Rudnick K.A., Lu J., Snyder L.A. J. Med. Primatol. 35:12-17(2006) [PubMed: 16430490] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	AY647976 mRNA. Translation: AAT68459.1.
3D structure databases
ModBase	Search...
Phylogenomic databases
HOVERGEN	Q6DT45.
Enzyme and pathway databases
BRENDA	3.4.21.77. 3438.
Family and domain databases
InterPro	IPR018114. Peptidase_S1/S6_AS. IPR001254. Peptidase_S1_S6. IPR001314. Peptidase_S1A. [Graphical view]
Pfam	PF00089. Trypsin. 1 hit. [Graphical view]
PRINTS	PR00722. CHYMOTRYPSIN.
SMART	SM00020. Tryp_SPc. 1 hit. [Graphical view]
PROSITE	PS50240. TRYPSIN_DOM. 1 hit. PS00134. TRYPSIN_HIS. 1 hit. PS00135. TRYPSIN_SER. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

KLK3_MACFA

Accession

Primary (citable) accession number: Q6DT45

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 12, 2005
Last sequence update:	August 16, 2004
Last modified:	June 16, 2009
This is version 33 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HPI (Human Proteome Initiative)