Seroatlas · Human Serome Atlas

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 YGMYHLS

LocalizationUniProt · 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.

Disease | GeneticClinVar

15 pathogenic / likely-pathogenic of 268 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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

Molecular functions

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.

Canonical record: https://seroatlas.com/gene/MSX2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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