Javascript is not enabled on this browser. This site will not work properly without Javascript.
PhosphoSitePlus Homepage Cell Signaling Technology
PhosphoSitePlus
HomeAbout PhosphoSiteUsing PhosphoSiteCuration ProcessContact
NIH-logos NIGMS Logo NIAAA Logo NCI Logo NIH Logo
Protein Page:
PSA (human)
p Phosphorylation
a Acetylation
m Methylation
m1 Mono-methylation
m2 Di-methylation
m3 Tri-methylation
u Ubiquitination
s Sumoylation
n Neddylation
gl O-GlcNAc
ga O-GalNAc
h Palmitoylation
ad Adenylylation
sn S-Nitrosylation
ca Caspase cleavage

Overview
PSA Hydrolyzes semenogelin-1 thus leading to the liquefaction of the seminal coagulum. Forms heterodimer with SERPINA5. Inhibited by SERPINA5. Activity is strongly inhibited by Zn2+, 100 times more abundant in semen than in serum. This inhibition is relieved by exposure to semenogelins, which are avid zinc binders. Belongs to the peptidase S1 family. Kallikrein subfamily. Note: This description may include information from UniProtKB.
Protein type: Secreted; Secreted, signal peptide; EC 3.4.21.77; Protease
Cellular Component: extracellular region; nucleus
Molecular Function: protein binding; serine-type peptidase activity; serine-type endopeptidase activity
Biological Process: negative regulation of angiogenesis; cellular protein metabolic process
Reference #:  P07288 (UniProtKB)
Alt. Names/Synonyms: APS; Gamma-seminoprotein; hK3; Kallikrein-3; kallikrein-related peptidase 3; KLK2A1; KLK3; P-30 antigen; prostate specific antigen; Prostate-specific antigen; PSA; Semenogelase; Seminin
Gene Symbols: KLK3
Molecular weight: 28,741 Da
Basal Isoelectric point: 7.61  Predict pI for various phosphorylation states
Protein-Specific Antibodies or siRNAs from Cell Signaling Technology® Total Proteins
Select Structure to View Below

PSA

Protein Structure Not Found.


STRING  |  Scansite  |  Phospho.ELM  |  NetworKIN  |  Pfam  |  RCSB PDB  |  ENZYME  |  Phospho3D  |  Source  |  GeneCards  |  UniProtKB  |  Entrez-Gene  |  GenPept  |  Ensembl Gene


Modification Sites and Domains Show Modification Legend
Click here to view phosphorylation modifications only

Modification Sites in Parent Protein, Orthologs, and Isoforms Show Modification Legend
 

Show Multiple Sequence Alignment


 SS 

SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.


 MS 

MS: The number of records in which this modification site was assigned using ONLY proteomic discovery-mode mass spectrometry.


       human

 
0 2 K251-u TKVVHYRkWIkDTIV
0 2 K254-u VHYRkWIkDTIVANP
Home  |  Curator Login With enhanced literature mining using Linguamatics I2E I2E Logo Produced by 3rd Millennium  |  Design by Digizyme
©2003-2013 Cell Signaling Technology, Inc.