Homeobox protein Meis1 is a protein that in humans is encoded by the MEIS1 gene.^[3][4]

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MEIS1
Available structures PDB Human UniProt search: PDBe RCSB List of PDB id codes 4XRS
Identifiers
Aliases	MEIS1, Meis homeobox 1
External IDs	OMIM: 601739 HomoloGene: 135741 GeneCards: MEIS1
Gene location (Human) Chr. Chromosome 2 (human)[1] Band 2p14 Start 66,433,452 bp[1] End 66,573,869 bp[1]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in right uterine tube gastric mucosa canal of the cervix left uterine tube stromal cell of endometrium palpebral conjunctiva right adrenal gland myometrium body of pancreas vagina n/a More reference expression data BioGPS More reference expression data
Gene ontology Molecular function sequence-specific DNA binding DNA-binding transcription activator activity, RNA polymerase II-specific chromatin binding RNA polymerase II cis-regulatory region sequence-specific DNA binding protein binding protein heterodimerization activity transcription factor activity, RNA polymerase II distal enhancer sequence-specific binding DNA-binding transcription factor activity, RNA polymerase II-specific DNA binding Cellular component transcription regulator complex nucleus Biological process megakaryocyte development regulation of transcription, DNA-templated blood vessel morphogenesis negative regulation of neuron differentiation locomotory behavior transcription by RNA polymerase II transcription, DNA-templated multicellular organism development lens morphogenesis in camera-type eye angiogenesis definitive hemopoiesis negative regulation of myeloid cell differentiation positive regulation of transcription by RNA polymerase II negative regulation of cardiac muscle cell proliferation hemopoiesis Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 4211 n/a Ensembl ENSG00000143995 n/a UniProt O00470 n/a RefSeq (mRNA) NM_002398 n/a RefSeq (protein) NP_002389 n/a Location (UCSC) Chr 2: 66.43 – 66.57 Mb n/a PubMed search [2] n/a
Wikidata
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Homeobox genes, of which the most well-characterized category is represented by the HOX genes, play a crucial role in normal development. In addition, several homeoproteins are involved in neoplasia. This gene encodes a homeobox protein belonging to the TALE ('three amino acid loop extension') family of homeodomain-containing proteins.^[4]

MEIS1 has been shown to interact with PBX1^[5][6][7] and HOXA9.^[5][8]