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HoxB1-Pbx1 heterodimer binding DNA 1b72.png
AliasesPBX2, G17, HOX12, PBX2MHC, PBX homeobox 2
External IDsOMIM: 176311 MGI: 1341793 HomoloGene: 48115 GeneCards: PBX2
Gene location (Human)
Chromosome 6 (human)
Chr.Chromosome 6 (human)[1]
Chromosome 6 (human)
Genomic location for PBX2
Genomic location for PBX2
Band6p21.32Start32,184,733 bp[1]
End32,190,202 bp[1]
RNA expression pattern
PBB GE PBX2 202876 s at fs.png

PBB GE PBX2 202875 s at fs.png

PBB GE PBX2 211096 at fs.png
More reference expression data
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC)Chr 6: 32.18 – 32.19 MbChr 17: 34.59 – 34.6 Mb
PubMed search[3][4]
View/Edit HumanView/Edit Mouse

Pre-B-cell leukemia transcription factor 2 is a protein that in humans is encoded by the PBX2 gene.[5][6]


This gene encodes a ubiquitously expressed member of the TALE/PBX homeobox family. It was identified by its similarity to a homeobox gene which is involved in t(1;19) translocation in acute pre-B-cell leukemias. This protein is a transcriptional activator which binds to the TLX1 promoter. The gene is located within the major histocompatibility complex (MHC) on chromosome 6.[6]


PBX2 has been shown to interact with HOXA9.[7]


  1. ^ a b c ENSG00000237344, ENSG00000236353, ENSG00000232005, ENSG00000225987, ENSG00000206315, ENSG00000204304 GRCh38: Ensembl release 89: ENSG00000224952, ENSG00000237344, ENSG00000236353, ENSG00000232005, ENSG00000225987, ENSG00000206315, ENSG00000204304 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000034673 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:".
  4. ^ "Mouse PubMed Reference:".
  5. ^ Sugaya K, Fukagawa T, Matsumoto K, Mita K, Takahashi E, Ando A, Inoko H, Ikemura T (Sep 1994). "Three genes in the human MHC class III region near the junction with the class II: gene for receptor of advanced glycosylation end products, PBX2 homeobox gene and a notch homolog, human counterpart of mouse mammary tumor gene int-3". Genomics. 23 (2): 408–19. doi:10.1006/geno.1994.1517. PMID 7835890.
  6. ^ a b "Entrez Gene: PBX2 pre-B-cell leukemia homeobox 2".
  7. ^ Shen WF, Rozenfeld S, Kwong A, Köm ves LG, Lawrence HJ, Largman C (Apr 1999). "HOXA9 forms triple complexes with PBX2 and MEIS1 in myeloid cells". Molecular and Cellular Biology. 19 (4): 3051–61. PMC 84099. PMID 10082572.

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This article incorporates text from the United States National Library of Medicine, which is in the public domain.