MNX1
Motor neuron and pancreas homeobox protein 1
Also known as: HB9, HLXB9, HOXHB9, MNX1_HUMAN, SCRA1
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P50219
- Gene
- MNX1
- Ensembl
- ENSG00000130675
- Chromosome
- 7
- Canonical length
- 401 aa
- Protein class
- Disease related genes, Human disease related genes, Plasma proteins, Predicted intracellular proteins, Transcription factors
- Subcellular location
- Nucleoplasm,Nucleoli,Cytosol
OverviewNCBI Gene
This gene encodes a nuclear protein, which contains a homeobox domain and is a transcription factor. Mutations in this gene result in Currarino syndrome, an autosomic dominant congenital malformation. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]
Canonical amino-acid sequenceUniProt
401 residues, UniProt reviewed canonical sequence.
>P50219|MNX1
1 MEKSKNFRID ALLAVDPPRA ASAQSAPLAL VTSLAAAASG TGGGGGGGGA SGGTSGSCSP
61 ASSEPPAAPA DRLRAESPSP PRLLAAHCAL LPKPGFLGAG GGGGGTGGGH GGPHHHAHPG
121 AAAAAAAAAA AAAAGGLALG LHPGGAQGGA GLPAQAALYG HPVYGYSAAA AAAALAGQHP
181 ALSYSYPQVQ GAHPAHPADP IKLGAGTFQL DQWLRASTAG MILPKMPDFN SQAQSNLLGK
241 CRRPRTAFTS QQLLELEHQF KLNKYLSRPK RFEVATSLML TETQVKIWFQ NRRMKWKRSK
301 KAKEQAAQEA EKQKGGGGGA GKGGAEEPGA EELLGPPAPG DKGSGRRLRD LRDSDPEEDE
361 DEDDEDHFPY SNGASVHAAS SDCSSEDDSP PPRPSHQPAP QLocalizationUniProt · AlphaFold · HPA
Whether an antibody against MNX1 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)
- 0.68
- Highest tissue expression
- 15 nTPM
Expression across tissuesHPA
Tissue
- pancreas: 15 nTPM
- duodenum: 6.8 nTPM
- small intestine: 5.7 nTPM
- colon: 3.5 nTPM
- rectum: 2.8 nTPM
- pituitary gland: 2.5 nTPM
Single-cell type
- corticotrophs: 86 nCPM
- pancreatic duct cells: 77 nCPM
- pancreatic islet cells: 54 nCPM
- neuroendocrine cells: 46 nCPM
- paneth cells: 43 nCPM
- goblet cells: 40 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: 3.2 nTPM
- white matter: 2.9 nTPM
- spinal cord: 2.1 nTPM
- pons: 2 nTPM
- cerebral cortex: 1.7 nTPM
- amygdala: 1.6 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about MNX1.
Disease | AllUniProt
Conditions MNX1 is implicated in, by any mechanism.
- Currarino syndrome (CURRAS) MIM:176450
Disease | GeneticClinVar
51 pathogenic / likely-pathogenic of 497 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Currarino triad
- MNX1-related disorder
- Inborn genetic diseases
- Abnormality of the vertebral column
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)
- 0.5
- gnomAD pLI
- 0.79
- gnomAD missense Z
- 0.73
- DepMap mean gene effect
- 0
- 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
- central nervous system development
- endocrine pancreas development
- neuron projection morphogenesis
- spinal cord motor neuron cell fate specification
Molecular functions
- DNA-binding transcription factor activity, RNA polymerase II-specific
- DNA-binding transcription repressor activity, RNA polymerase II-specific
- sequence-specific double-stranded DNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Homeodomain
- Homedomain-like superfamily
- Homeobox, conserved site
- Homeodomain, metazoa
- Homeodomain
- Homeobox protein MNX1/Ceh-12
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads MNX1 as an antibody target. Whether an autoantibody or antibody against MNX1 could matter depends on whether native MNX1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
MNX1 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 MNX1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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