RefSeq (protein)



Location (UCSC) Chr 21: 25.73 – 25.77 Mb Chr 16: 84.83 – 84.86 Mb PubMed search [3] [4] Wikidata
View/Edit Human View/Edit Mouse

GA-binding protein alpha chain is a protein that in humans is encoded by the GABPA gene.[5]


This gene encodes one of three GA-binding protein transcription factor subunits which functions as a DNA-binding subunit. Since this subunit shares identity with a subunit encoding the nuclear respiratory factor 2 gene, it is likely involved in activation of cytochrome oxidase expression and nuclear control of mitochondrial function. This subunit also shares identity with a subunit constituting the transcription factor E4TF1, responsible for expression of the adenovirus E4 gene. Because of its chromosomal localization and ability to form heterodimers with other polypeptides, this gene may play a role in the Down Syndrome phenotype.[6]


GABPA has been shown to interact with Host cell factor C1,[7] Sp1 transcription factor[8] and Sp3 transcription factor.[8]


  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000154727 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000008976 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:". 
  4. ^ "Mouse PubMed Reference:". 
  5. ^ Watanabe H, Sawada J, Yano K, Yamaguchi K, Goto M, Handa H (Mar 1993). "cDNA cloning of transcription factor E4TF1 subunits with Ets and notch motifs". Molecular and Cellular Biology. 13 (3): 1385–91. PMC 359448Freely accessible. PMID 8441384. 
  6. ^ "Entrez Gene: GABPA GA binding protein transcription factor, alpha subunit 60kDa". 
  7. ^ Vogel JL, Kristie TM (Feb 2000). "The novel coactivator C1 (HCF) coordinates multiprotein enhancer formation and mediates transcription activation by GABP". The EMBO Journal. 19 (4): 683–90. doi:10.1093/emboj/19.4.683. PMC 305606Freely accessible. PMID 10675337. 
  8. ^ a b Galvagni F, Capo S, Oliviero S (Mar 2001). "Sp1 and Sp3 physically interact and co-operate with GABP for the activation of the utrophin promoter". Journal of Molecular Biology. 306 (5): 985–96. doi:10.1006/jmbi.2000.4335. PMID 11237613. 

Further reading

External links