JAG2
Protein jagged-2
Also known as: JAG2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9Y219
- Gene
- JAG2
- Ensembl
- ENSG00000184916
- Chromosome
- 14
- Canonical length
- 1238 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted membrane proteins
- Subcellular location
- Vesicles,Cytosol
OverviewNCBI Gene
The Notch signaling pathway is an intercellular signaling mechanism that is essential for proper embryonic development. Members of the Notch gene family encode transmembrane receptors that are critical for various cell fate decisions. The protein encoded by this gene is one of several ligands that activate Notch and related receptors. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
1238 residues, UniProt reviewed canonical sequence.
>Q9Y219|JAG2
1 MRAQGRGRLP RRLLLLLALW VQAARPMGYF ELQLSALRNV NGELLSGACC DGDGRTTRAG
61 GCGHDECDTY VRVCLKEYQA KVTPTGPCSY GHGATPVLGG NSFYLPPAGA AGDRARARAR
121 AGGDQDPGLV VIPFQFAWPR SFTLIVEAWD WDNDTTPNEE LLIERVSHAG MINPEDRWKS
181 LHFSGHVAHL ELQIRVRCDE NYYSATCNKF CRPRNDFFGH YTCDQYGNKA CMDGWMGKEC
241 KEAVCKQGCN LLHGGCTVPG ECRCSYGWQG RFCDECVPYP GCVHGSCVEP WQCNCETNWG
301 GLLCDKDLNY CGSHHPCTNG GTCINAEPDQ YRCTCPDGYS GRNCEKAEHA CTSNPCANGG
361 SCHEVPSGFE CHCPSGWSGP TCALDIDECA SNPCAAGGTC VDQVDGFECI CPEQWVGATC
421 QLDANECEGK PCLNAFSCKN LIGGYYCDCI PGWKGINCHI NVNDCRGQCQ HGGTCKDLVN
481 GYQCVCPRGF GGRHCELERD ECASSPCHSG GLCEDLADGF HCHCPQGFSG PLCEVDVDLC
541 EPSPCRNGAR CYNLEGDYYC ACPDDFGGKN CSVPREPCPG GACRVIDGCG SDAGPGMPGT
601 AASGVCGPHG RCVSQPGGNF SCICDSGFTG TYCHENIDDC LGQPCRNGGT CIDEVDAFRC
661 FCPSGWEGEL CDTNPNDCLP DPCHSRGRCY DLVNDFYCAC DDGWKGKTCH SREFQCDAYT
721 CSNGGTCYDS GDTFRCACPP GWKGSTCAVA KNSSCLPNPC VNGGTCVGSG ASFSCICRDG
781 WEGRTCTHNT NDCNPLPCYN GGICVDGVNW FRCECAPGFA GPDCRINIDE CQSSPCAYGA
841 TCVDEINGYR CSCPPGRAGP RCQEVIGFGR SCWSRGTPFP HGSSWVEDCN SCRCLDGRRD
901 CSKVWCGWKP CLLAGQPEAL SAQCPLGQRC LEKAPGQCLR PPCEAWGECG AEEPPSTPCL
961 PRSGHLDNNC ARLTLHFNRD HVPQGTTVGA ICSGIRSLPA TRAVARDRLL VLLCDRASSG
1021 ASAVEVAVSF SPARDLPDSS LIQGAAHAIV AAITQRGNSS LLLAVTEVKV ETVVTGGSST
1081 GLLVPVLCGA FSVLWLACVV LCVWWTRKRR KERERSRLPR EESANNQWAP LNPIRNPIER
1141 PGGHKDVLYQ CKNFTPPPRR ADEALPGPAG HAAVREDEED EDLGRGEEDS LEAEKFLSHK
1201 FTKDPGRSPG RPAHWASGPK VDNRAVRSIN EARYAGKELocalizationUniProt · AlphaFold · HPA
Whether an antibody against JAG2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 1
- Mean surface accessibility (rSASA)
- 0.4
- Highest tissue expression
- 18 nTPM
Expression across tissuesHPA
Tissue
- skin: 18 nTPM
- pituitary gland: 16 nTPM
- heart muscle: 13 nTPM
- breast: 9.2 nTPM
- skeletal muscle: 9 nTPM
- esophagus: 8.4 nTPM
Single-cell type
- breast myoepithelial cells: 73 nCPM
- corticotrophs: 68 nCPM
- vascular endothelial cells: 43 nCPM
- basal prostatic cells: 39 nCPM
- salivary basal cells: 38 nCPM
- epididymal basal cells: 35 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- hypothalamus: 22 nTPM
- pons: 21 nTPM
- midbrain: 16 nTPM
- medulla oblongata: 16 nTPM
- amygdala: 15 nTPM
- cerebral cortex: 15 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about JAG2.
Disease | AllUniProt
Conditions JAG2 is implicated in, by any mechanism.
- Muscular dystrophy, limb-girdle, autosomal recessive 27 (LGMDR27) MIM:619566
Disease | GeneticClinVar
5 pathogenic / likely-pathogenic of 380 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Muscular dystrophy, limb-girdle, autosomal recessive 27
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.14
- gnomAD pLI
- 1
- gnomAD missense Z
- 2.2
- DepMap mean gene effect
- 0.05
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- auditory receptor cell fate commitment
- cell differentiation
- gamma-delta T cell differentiation
- in utero embryonic development
- morphogenesis of embryonic epithelium
- Notch signaling pathway
- odontogenesis of dentin-containing tooth
- positive regulation of Notch signaling pathway
- regulation of cell adhesion
- regulation of cell population proliferation
- respiratory system process
- skeletal system development
- spermatogenesis
- T cell differentiation
- thymic T cell selection
- epithelial cell apoptotic process involved in palatal shelf morphogenesis
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- EGF-type aspartate/asparagine hydroxylation site
- EGF-like domain
- VWFC domain
- Delta/Serrate/lag-2 (DSL) protein
- EGF-like calcium-binding domain
- Growth factor receptor cysteine-rich domain superfamily
- Notch ligand, N-terminal domain
- EGF-like, conserved site
- EGF-like calcium-binding, conserved site
- Jagged/Serrate protein
- NOTCH1, EGF-like calcium-binding domain
- Protein jagged-1/2, predicted ferredoxin-like domain
- EGF-like domain
- Delta serrate ligand
- Calcium-binding EGF domain
- N terminus of Notch ligand C2-like domain
- Human growth factor-like EGF
- Delta-like/Jagged, EGF-like domain
- Protein jagged-1-like, predicted ferredoxin-like domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of JAG2 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads JAG2 as an antibody target. Whether an autoantibody or antibody against JAG2 could matter depends on whether native JAG2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
JAG2 is annotated at the cell surface, where native JAG2 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label JAG2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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