Javascript is not enabled on this browser. This site will not work properly without Javascript.
PhosphoSitePlus Homepage Cell Signaling Technology
HomeAbout PhosphoSiteUsing PhosphoSiteCuration ProcessContact
NIH-logos NIGMS Logo NIAAA Logo NCI Logo NIH Logo
Protein Page:
IL12B (human)
p Phosphorylation
ac Acetylation
me Methylation
m1 Mono-methylation
m2 Di-methylation
m3 Tri-methylation
ub Ubiquitination
sm Sumoylation
ne Neddylation
gl O-GlcNAc
ga O-GalNAc
pa Palmitoylation
ad Adenylylation
sn S-Nitrosylation
ca Caspase cleavage
sc Succinylation

IL12B Cytokine that can act as a growth factor for activated T and NK cells, enhance the lytic activity of NK/lymphokine- activated killer cells, and stimulate the production of IFN-gamma by resting PBMC. Defects in IL12B are a cause of mendelian susceptibility to mycobacterial disease (MSMD); also known as familial disseminated atypical mycobacterial infection. This rare condition confers predisposition to illness caused by moderately virulent mycobacterial species, such as Bacillus Calmette-Guerin (BCG) vaccine and environmental non-tuberculous mycobacteria, and by the more virulent Mycobacterium tuberculosis. Other microorganisms rarely cause severe clinical disease in individuals with susceptibility to mycobacterial infections, with the exception of Salmonella which infects less than 50% of these individuals. The pathogenic mechanism underlying MSMD is the impairment of interferon-gamma mediated immunity, whose severity determines the clinical outcome. Some patients die of overwhelming mycobacterial disease with lepromatous-like lesions in early childhood, whereas others develop, later in life, disseminated but curable infections with tuberculoid granulomas. MSMD is a genetically heterogeneous disease with autosomal recessive, autosomal dominant or X-linked inheritance. Genetic variations in IL12B are a cause of susceptibility to psoriasis type 11 (PSORS11). Psoriasis is a common, chronic inflammatory disease of the skin with multifactorial etiology. It is characterized by red, scaly plaques usually found on the scalp, elbows and knees. These lesions are caused by abnormal keratinocyte proliferation and infiltration of inflammatory cells into the dermis and epidermis. Belongs to the type I cytokine receptor family. Type 3 subfamily. Note: This description may include information from UniProtKB.
Protein type: Cytokine; Secreted, signal peptide; Secreted
Chromosomal Location of Human Ortholog: 5q31.1-q33.1
Cellular Component: extracellular space; membrane; interleukin-12 complex; cytoplasm
Molecular Function: identical protein binding; hematopoietin/interferon-class (D200-domain) cytokine receptor activity; interleukin-12 alpha subunit binding; protein binding; protein homodimerization activity; growth factor activity; protein heterodimerization activity; cytokine activity; interleukin-23 receptor binding; interleukin-12 receptor binding
Biological Process: positive regulation of granulocyte macrophage colony-stimulating factor production; positive regulation of cell adhesion; positive regulation of T-helper 1 type immune response; negative regulation of interleukin-10 production; positive regulation of T cell mediated cytotoxicity; negative regulation of smooth muscle cell proliferation; positive regulation of interleukin-12 production; positive regulation of osteoclast differentiation; positive regulation of NK T cell proliferation; natural killer cell activation; positive regulation of tyrosine phosphorylation of Stat4 protein; positive regulation of NF-kappaB import into nucleus; defense response to Gram-negative bacterium; sensory perception of pain; positive regulation of activated T cell proliferation; positive regulation of interleukin-10 production; positive regulation of natural killer cell activation; positive regulation of tyrosine phosphorylation of Stat3 protein; positive regulation of lymphocyte proliferation; natural killer cell activation during immune response; positive regulation of T cell proliferation; negative regulation of inflammatory response to antigenic stimulus; cell cycle arrest; defense response to virus; regulation of cytokine biosynthetic process; positive regulation of memory T cell differentiation; positive regulation of interleukin-17 production; T-helper 1 type immune response; positive regulation of natural killer cell proliferation; cell migration; positive regulation of NK T cell activation; positive regulation of natural killer cell mediated cytotoxicity directed against tumor cell target; T-helper cell differentiation; cytokine and chemokine mediated signaling pathway; defense response to protozoan; positive regulation of tumor necrosis factor production; regulation of tyrosine phosphorylation of Stat1 protein; response to UV-B; positive regulation of tissue remodeling; positive regulation of interferon-gamma production; negative regulation of interleukin-17 production; positive regulation of tyrosine phosphorylation of Stat5 protein; positive regulation of mononuclear cell proliferation; sexual reproduction; interferon-gamma biosynthetic process; positive regulation of defense response to virus by host; positive regulation of inflammatory response; positive regulation of interferon-gamma biosynthetic process
Disease: Immunodeficiency 29; Asthma, Susceptibility To
Reference #:  P29460 (UniProtKB)
Alt. Names/Synonyms: CLMF; CLMF p40; CLMF2; Cytotoxic lymphocyte maturation factor 40 kDa subunit; IL-12 subunit p40; IL-12B; IL12, subunit p40; IL12B; interleukin 12, p40; interleukin 12B (natural killer cell stimulatory factor 2, cytotoxic lymphocyte maturation factor 2, p40); interleukin-12 beta chain; Interleukin-12 subunit beta; natural killer cell stimulatory factor, 40 kD subunit; NK cell stimulatory factor chain 2; NKSF; NKSF2
Gene Symbols: IL12B
Molecular weight: 37,169 Da
Basal Isoelectric point: 5.52  Predict pI for various phosphorylation states
Select Structure to View Below


Protein Structure Not Found.

STRING  |  Wikipedia  |  neXtProt  |  Protein Atlas  |  BioGPS  |  Scansite  |  Pfam  |  RCSB PDB  |  Phospho3D  |  Phospho.ELM  |  Source  |  UCSD-Nature  |  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


LTP: 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.


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


0 1 S162-p SVKSSRGssDPQGVt
0 1 S163-p VKSSRGssDPQGVtC
0 1 T169-p ssDPQGVtCGAAtLs
0 1 T174-p GVtCGAAtLsAERVR
0 1 S176-p tCGAAtLsAERVRGD

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.