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homeobox protein Nkx-6.1; homeobox protein NK-6 homolog A (NKX6-1, NKX6A)
Function:
- transcription factor which binds to specific A/T-rich DNA sequences in the promoter regions of a number of genes involved in transcriptional regulation in islet beta cells
- binds to the insulin promoter & is involved in regulation of the insulin gene
- together with NKX2-2 & IRX3 acts to restrict the generation of motor neurons to the appropriate region of the neural tube
- belongs to class II proteins of neuronal progenitor factors, which are induced by SHH signals
Structure:
- the C-terminal domain contributes to sequence-specific DNA-binding (putative)
- contains 1 homeobox DNA-binding domain
Compartment: nucleus (probable)
Expression: pancreatic beta cells
General
homeobox protein
Properties
SIZE: entity length = 367 aa
MW = 38 kD
COMPARTMENT: cell nucleus
MOTIF: serine-rich region {49-61}
MOTIF: serine residue (SEVERAL)
Repressor domain {102-268}
MOTIF: serine-rich region {119-135}
MOTIF: serine residue (SEVERAL)
alanine-rich region {136-150}
MOTIF: alanine residue (SEVERAL)
proline-rich region
SITE: 168-173
MOTIF: proline residue (SEVERAL)
homeodomain
SITE: 236-295
DNA-binding motif
SITE: 306-367
MOTIF: glycine-rich region {351-355}
Database Correlations
OMIM 602563
UniProt P78426
Pfam PF00046
Entrez Gene 4825
Kegg hsa:4825
References
UniProt :accession P78426