MEIS2
Homeobox protein Meis2
Also known as: HsT18361, MEIS2_HUMAN, MRG1
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O14770
- Gene
- MEIS2
- Ensembl
- ENSG00000134138
- Chromosome
- 15
- Canonical length
- 477 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins, Transcription factors
- Subcellular location
- Nucleoplasm,Cytosol
- Quaternary structure
- Homodimer
OverviewNCBI Gene
This gene encodes a homeobox protein belonging to the TALE ('three amino acid loop extension') family of homeodomain-containing proteins. TALE homeobox proteins are highly conserved transcription regulators, and several members have been shown to be essential contributors to developmental programs. Multiple transcript variants encoding distinct isoforms have been described for this gene. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
477 residues, UniProt reviewed canonical sequence.
>O14770|MEIS2
1 MAQRYDELPH YGGMDGVGVP ASMYGDPHAP RPIPPVHHLN HGPPLHATQH YGAHAPHPNV
61 MPASMGSAVN DALKRDKDAI YGHPLFPLLA LVFEKCELAT CTPREPGVAG GDVCSSDSFN
121 EDIAVFAKQV RAEKPLFSSN PELDNLMIQA IQVLRFHLLE LEKVHELCDN FCHRYISCLK
181 GKMPIDLVID ERDGSSKSDH EELSGSSTNL ADHNPSSWRD HDDATSTHSA GTPGPSSGGH
241 ASQSGDNSSE QGDGLDNSVA SPGTGDDDDP DKDKKRQKKR GIFPKVATNI MRAWLFQHLT
301 HPYPSEEQKK QLAQDTGLTI LQVNNWFINA RRRIVQPMID QSNRAGFLLD PSVSQGAAYS
361 PEGQPMGSFV LDGQQHMGIR PAGLQSMPGD YVSQGGPMGM SMAQPSYTPP QMTPHPTQLR
421 HGPPMHSYLP SHPHHPAMMM HGGPPTHPGM TMSAQSPTML NSVDPNVGGQ VMDIHAQLocalizationUniProt · AlphaFold · HPA
Whether an antibody against MEIS2 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)
- 0.6
- Highest tissue expression
- 45 nTPM
Expression across tissuesHPA
Tissue
- salivary gland: 45 nTPM
- prostate: 28 nTPM
- smooth muscle: 28 nTPM
- endometrium: 26 nTPM
- fallopian tube: 18 nTPM
- seminal vesicle: 16 nTPM
Single-cell type
- pituitary stem cells: 1,519 nCPM
- salivary acinar cells: 1,385 nCPM
- lacrimal acinar cells: 1,208 nCPM
- medullary thymic epithelial cells: 1,203 nCPM
- basal prostatic cells: 1,125 nCPM
- salivary ionocytes: 1,052 nCPM
Immune cell
- basophil: 0.5 nTPM
- eosinophil: 0.1 nTPM
- classical monocyte: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- basal ganglia: 89 nTPM
- midbrain: 49 nTPM
- pons: 39 nTPM
- medulla oblongata: 36 nTPM
- white matter: 34 nTPM
- spinal cord: 33 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about MEIS2.
Disease | AllUniProt
Conditions MEIS2 is implicated in, by any mechanism.
- Cleft palate, cardiac defects, and impaired intellectual development (CPCMR) MIM:600987
Disease | GeneticClinVar
45 pathogenic / likely-pathogenic of 237 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Cardiac malformation, cleft lip/palate, microcephaly, and digital anomalies
- Inborn genetic diseases
- MEIS2-related disorder
- Cleft palate
- Syndromic intellectual disability
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)
- 0.18
- gnomAD pLI
- 1
- gnomAD missense Z
- 2.46
- DepMap mean gene effect
- 0.02
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- animal organ morphogenesis
- brain development
- embryonic pattern specification
- eye development
- negative regulation of myeloid cell differentiation
- negative regulation of transcription by RNA polymerase II
- pancreas development
- positive regulation of cardiac muscle myoblast proliferation
- positive regulation of cell population proliferation
- positive regulation of mitotic cell cycle
- positive regulation of transcription by RNA polymerase II
- response to growth factor
- response to mechanical stimulus
- visual learning
Molecular functions
- DNA binding
- DNA-binding transcription activator activity, RNA polymerase II-specific
- DNA-binding transcription factor activity, RNA polymerase II-specific
- RNA polymerase II cis-regulatory region sequence-specific DNA binding
- sequence-specific DNA binding
- sequence-specific double-stranded DNA binding
- transcription factor binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of MEIS2 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 MEIS2 as an antibody target. Whether an autoantibody or antibody against MEIS2 could matter depends on whether native MEIS2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
MEIS2 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 MEIS2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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