Reactome: A Curated Pathway Database
THIS SITE IS USED FOR CURATION AND TESTING
IT IS NOT STABLE, IS LINKED TO AN INCOMPLETE DATA SET, AND IS NOT MONITORED FOR PERFORMANCE. WE STRONGLY RECOMMEND THE USE OF OUR PUBLIC SITE

Query author contributions in Reactome

Reactome depends on collaboration between our curation team and outside experts to assemble and peer-review its pathway modules. The integration of ORCID within Reactome enables us to meet a key challenge with authoring, curating and reviewing biological information by incentivizing and crediting the external experts that contribute their expertise and time to the Reactome curation process. More information is available at ORCID and Reactome.

If you have an ORCID ID that is not listed on this page, please forward this information to us and we will update your Reactome pathway records.

Name Email address

Details on Person UniProt:Q99665 IL12RB2

Class:IdReferenceGeneProduct:56920
_chainChangeLogsignal peptide:1-23 added on Sat February 7 2015;chain:24-862 added on Sat February 7 2015
_displayNameUniProt:Q99665 IL12RB2
_timestamp2025-02-21 19:48:46
chainsignal peptide:1-23
chain:24-862
checksum67C0E0D946B8DD58
commentFUNCTION Receptor for interleukin-12. This subunit is the signaling component coupling to the JAK2/STAT4 pathway. Promotes the proliferation of T-cells as well as NK cells. Induces the promotion of T-cells towards the Th1 phenotype by strongly enhancing IFN-gamma production.SUBUNIT Heterodimer/heterooligomer; disulfide-linked. The functional high affinity IL12 receptor is composed of I12RB1 and IL12RB2. Il12RB2 binds JAK2 (via its N-terminal) through a membrane-proximal region of the cytoplasmic domain. Interaction, in vitro and in vivo, with SOCS3 (via its SH2 domain) inhibits the STAT4-mediated activation. Binds STAT4 through a membrane-distal C-terminal region.SUBCELLULAR LOCATION Isoform 2 is expressed at similar levels in both naive and activated T-cells.DEVELOPMENTAL STAGE Maximum levels in Th1 cells between day 3 and day 8 of activation.INDUCTION In vitro, up-regulated by IFN-alpha.DOMAIN The WSXWS motif appears to be necessary for proper protein folding and thereby efficient intracellular transport and cell-surface receptor binding.DOMAIN The box 1 motif is required for JAK interaction and/or activation.PTM On IL12 binding, phosphorylated on C-terminal tyrosine residues by JAK2. Phosphorylation on Tyr-800 is required for STAT4 binding and activation, and for SOCS3 binding.POLYMORPHISM Heterozygotic variants Gly-313 and Arg-720 are associated with atopy, an immunological condition that can lead to clinical symptoms such as allergic rhinitis, sinusitis, asthma and eczema.SIMILARITY Belongs to the type I cytokine receptor family. Type 2 subfamily.
descriptionrecommendedName: Interleukin-12 receptor subunit beta-2 shortName: IL-12 receptor subunit beta-2 shortName: IL-12R subunit beta-2 shortName: IL-12R-beta-2 shortName: IL-12RB2
geneNameIL12RB2
identifierQ99665
isSequenceChangedFALSE
keyword3D-structure
Alternative splicing
Disulfide bond
Glycoprotein
Membrane
Phosphoprotein
Proteomics identification
Receptor
Reference proteome
Repeat
Signal
Transmembrane
Transmembrane helix
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
nameIL12RB2
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8957571] ENSEMBL:ENSG00000081985 IL12RB2 [Homo sapiens]
secondaryIdentifierI12R2_HUMAN
B1AN98
B7ZKL9
F5H7L6
Q2M3V3
sequenceLength862
species[Species:48887] Homo sapiens
(isoformParent)[ReferenceIsoform:148615] UniProt:Q99665-2 IL12RB2 [Homo sapiens]
[ReferenceIsoform:413160] UniProt:Q99665-1 IL12RB2 [Homo sapiens]
[ReferenceIsoform:8976537] UniProt:Q99665-3 IL12RB2 [Homo sapiens]
(referenceEntity)[EntityWithAccessionedSequence:447249] IL12RB2 [plasma membrane] [Homo sapiens]
[EntityWithAccessionedSequence:8950376] p-Y800-IL12RB2 [plasma membrane] [Homo sapiens]
[EntityWithAccessionedSequence:8958284] IL12RB2 [extracellular region] [Homo sapiens]
(referenceSequence)[ModifiedResidue:8950356] O4'-phospho-L-tyrosine at 800
[Change default viewing format]
No pathways have been reviewed or authored by UniProt:Q99665 IL12RB2 (56920)