[HMGA1a is one of three protein products of the same gene, HMGA1, generated by alternative splicing. The HMGA1a protein contains three basic domains, named AT-hooks and an acidic C-terminal region. AT-hooks are responsible for binding to AT-rich sequences inside the minor groove of DNA. Phosphorylation of HMGA1a by both PKC and cdc-2 kinases strongly reduces its DNA binding affinity and is critical in cell cycle progression. HMGA1a activates the interferon-beta gene (IFN-beta) by functioning as the essential architectural component for the assembly and stability of the IFN-beta enhanceosome. (PMID11576996) ( NCI )]
UMLS (NCI) C0038164 - Amino Acid, Peptide, or Protein
- Immunologic Factor
- Indicator, Reagent, or Diagnostic Aid