MSX2
Homeobox protein MSX-2
Also known as: CRS2, FPP, HOX8, MSH, MSX2_HUMAN, PFM, PFM1
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P35548
- Gene
- MSX2
- Ensembl
- ENSG00000120149
- Chromosome
- 5
- Canonical length
- 267 aa
- Protein class
- Disease related genes, Human disease related genes, Plasma proteins, Predicted intracellular proteins, Transcription factors
- Subcellular location
- Nuclear speckles
OverviewNCBI Gene
This gene encodes a member of the muscle segment homeobox gene family. The encoded protein is a transcriptional repressor whose normal activity may establish a balance between survival and apoptosis of neural crest-derived cells required for proper craniofacial morphogenesis. The encoded protein may also have a role in promoting cell growth under certain conditions and may be an important target for the RAS signaling pathways. Mutations in this gene are associated with parietal foramina 1 and craniosynostosis type 2. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
267 residues, UniProt reviewed canonical sequence.
>P35548|MSX2
1 MASPSKGNDL FSPDEEGPAV VAGPGPGPGG AEGAAEERRV KVSSLPFSVE ALMSDKKPPK
61 EASPLPAESA SAGATLRPLL LSGHGAREAH SPGPLVKPFE TASVKSENSE DGAAWMQEPG
121 RYSPPPRHMS PTTCTLRKHK TNRKPRTPFT TSQLLALERK FRQKQYLSIA ERAEFSSSLN
181 LTETQVKIWF QNRRAKAKRL QEAELEKLKM AAKPMLPSSF SLPFPISSPL QAASIYGASY
241 PFHRPVLPIP PVGLYATPVG YGMYHLSLocalizationUniProt · AlphaFold · HPA
Whether an antibody against MSX2 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.65
- Highest tissue expression
- 32 nTPM
Expression across tissuesHPA
Tissue
- placenta: 32 nTPM
- parathyroid gland: 24 nTPM
- urinary bladder: 16 nTPM
- blood vessel: 9.6 nTPM
- breast: 7.7 nTPM
- endometrium: 6.4 nTPM
Single-cell type
- syncytiotrophoblasts: 263 nCPM
- cytotrophoblasts: 199 nCPM
- urothelial cells: 154 nCPM
- migrating cytotrophoblasts: 116 nCPM
- endometrial luminal cells: 75 nCPM
- bergmann glia: 63 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
- medulla oblongata: 16 nTPM
- spinal cord: 11 nTPM
- white matter: 10 nTPM
- cerebellum: 7.9 nTPM
- pons: 5.2 nTPM
- hypothalamus: 2.3 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about MSX2.
Disease | AllUniProt
Conditions MSX2 is implicated in, by any mechanism.
- Parietal foramina 1 (PFM1) MIM:168500
- Parietal foramina with cleidocranial dysplasia (PFMCCD) MIM:168550
- Craniosynostosis 2 (CRS2) MIM:604757
Disease | GeneticClinVar
15 pathogenic / likely-pathogenic of 268 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Parietal foramina 1
- Craniosynostosis 2
- Enlarged Parietal Foramina
- Parietal foramina with cleidocranial dysplasia
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)
- 0.82
- gnomAD pLI
- 0.26
- gnomAD missense Z
- 0.47
- DepMap mean gene effect
- 0
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- activation of meiosis
- anterior/posterior pattern specification
- BMP signaling pathway
- bone trabecula formation
- branching involved in mammary gland duct morphogenesis
- cardiac conduction system development
- cell surface receptor signaling pathway involved in heart development
- cellular response to estradiol stimulus
- chondrocyte development
- cranial suture morphogenesis
- embryonic forelimb morphogenesis
- embryonic hindlimb morphogenesis
- embryonic morphogenesis
- embryonic nail plate morphogenesis
- enamel mineralization
- endochondral bone growth
- epithelial to mesenchymal transition involved in endocardial cushion formation
- frontal suture morphogenesis
- mesenchymal cell apoptotic process
- negative regulation of apoptotic process
- negative regulation of cell population proliferation
- negative regulation of DNA-templated transcription
- negative regulation of fat cell differentiation
- negative regulation of keratinocyte differentiation
- negative regulation of transcription by RNA polymerase II
- osteoblast development
- osteoblast differentiation
- outflow tract septum morphogenesis
- positive regulation of BMP signaling pathway
- positive regulation of mesenchymal cell apoptotic process
- positive regulation of osteoblast differentiation
- positive regulation of timing of catagen
- regulation of transcription by RNA polymerase II
- signal transduction involved in regulation of gene expression
- stem cell differentiation
- wound healing, spreading of epidermal cells
Molecular functions
- DNA-binding transcription factor activity, RNA polymerase II-specific
- DNA-binding transcription repressor activity, RNA polymerase II-specific
- RNA polymerase II cis-regulatory region sequence-specific DNA binding
- RNA polymerase II transcription regulatory region sequence-specific DNA binding
- sequence-specific DNA binding
- sequence-specific double-stranded DNA binding
- transcription cis-regulatory region binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of MSX2 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 MSX2 as an antibody target. Whether an autoantibody or antibody against MSX2 could matter depends on whether native MSX2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
MSX2 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label MSX2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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