PBX2

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

PBX2
Identifiers
Aliases	PBX2, G17, HOX12, PBX2MHC, PBX homeobox 2
External IDs	OMIM: 176311 MGI: 1341793 HomoloGene: 48115 GeneCards: PBX2
Gene location (Human) Chr. Chromosome 6 (human)[1] Band 6p21.32 Start 32,184,733 bp[1] End 32,190,202 bp[1]
Gene location (Mouse) Chr. Chromosome 17 (mouse)[2] Band 17|17 B1 Start 34,591,266 bp[2] End 34,597,400 bp[2]
RNA expression pattern More reference expression data
Gene ontology Molecular function • GO:0001131, GO:0001151, GO:0001130, GO:0001204 DNA-binding transcription factor activity • sequence-specific DNA binding • DNA binding • transcription factor binding • chromatin binding • GO:0001948 protein binding • RNA polymerase II regulatory region sequence-specific DNA binding • GO:0001077, GO:0001212, GO:0001213, GO:0001211, GO:0001205 DNA-binding transcription activator activity, RNA polymerase II-specific • GO:0001200, GO:0001133, GO:0001201 DNA-binding transcription factor activity, RNA polymerase II-specific Cellular component • cell nucleus • transcription regulator complex Biological process • proximal/distal pattern formation • regulation of transcription, DNA-templated • embryonic limb morphogenesis • transcription, DNA-templated • transcription from RNA polymerase II promoter • positive regulation of transcription from RNA polymerase II promoter Sources:Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	5089	18515
Ensembl	ENSG00000224952 ENSG00000237344 ENSG00000236353 ENSG00000232005 ENSG00000225987 ENSG00000206315 ENSG00000204304	ENSMUSG00000034673
UniProt	P40425	O35984
RefSeq (mRNA)	NM_002586	NM_017463
RefSeq (protein)	NP_002577	NP_059491
Location (UCSC)	Chr 6: 32.18 – 32.19 Mb	Chr 17: 34.59 – 34.6 Mb
PubMed search	[3]	[4]
Wikidata
View/Edit Human View/Edit Mouse

Function

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]

Interactions

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

References

1. ENSG00000237344, ENSG00000236353, ENSG00000232005, ENSG00000225987, ENSG00000206315, ENSG00000204304 GRCh38: Ensembl release 89: ENSG00000224952, ENSG00000237344, ENSG00000236353, ENSG00000232005, ENSG00000225987, ENSG00000206315, ENSG00000204304 - Ensembl, May 2017
2. GRCm38: Ensembl release 89: ENSMUSG00000034673 - Ensembl, May 2017
3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
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. "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. doi:10.1128/mcb.19.4.3051. PMC 84099. PMID 10082572.

Further reading

• Monica K, Galili N, Nourse J, Saltman D, Cleary ML (Dec 1991). "PBX2 and PBX3, new homeobox genes with extensive homology to the human proto-oncogene PBX1". Molecular and Cellular Biology. 11 (12): 6149–57. doi:10.1128/mcb.11.12.6149. PMC 361792. PMID 1682799.
• Aguado B, Campbell RD (Feb 1995). "The novel gene G17, located in the human major histocompatibility complex, encodes PBX2, a homeodomain-containing protein". Genomics. 25 (3): 650–9. doi:10.1016/0888-7543(95)80007-9. PMID 7759099.
• Lu Q, Wright DD, Kamps MP (Jun 1994). "Fusion with E2A converts the Pbx1 homeodomain protein into a constitutive transcriptional activator in human leukemias carrying the t(1;19) translocation". Molecular and Cellular Biology. 14 (6): 3938–48. doi:10.1128/mcb.14.6.3938. PMC 358760. PMID 7910944.
• Katsanis N, Fitzgibbon J, Fisher EM (Jul 1996). "Paralogy mapping: identification of a region in the human MHC triplicated onto human chromosomes 1 and 9 allows the prediction and isolation of novel PBX and NOTCH loci". Genomics. 35 (1): 101–8. doi:10.1006/geno.1996.0328. PMID 8661110.
• Berthelsen J, Zappavigna V, Mavilio F, Blasi F (Mar 1998). "Prep1, a novel functional partner of Pbx proteins". The EMBO Journal. 17 (5): 1423–33. doi:10.1093/emboj/17.5.1423. PMC 1170490. PMID 9482739.
• 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. doi:10.1128/MCB.19.4.3051. PMC 84099. PMID 10082572.
• Fujino T, Yamazaki Y, Largaespada DA, Jenkins NA, Copeland NG, Hirokawa K, Nakamura T (Jul 2001). "Inhibition of myeloid differentiation by Hoxa9, Hoxb8, and Meis homeobox genes". Experimental Hematology. 29 (7): 856–63. doi:10.1016/S0301-472X(01)00655-5. PMID 11438208.
• Brake RL, Kees UR, Watt PM (May 2002). "A complex containing PBX2 contributes to activation of the proto-oncogene HOX11". Biochemical and Biophysical Research Communications. 294 (1): 23–34. doi:10.1016/S0006-291X(02)00426-6. PMID 12054735.
• Okada Y, Nagai R, Sato T, Matsuura E, Minami T, Morita I, Doi T (Jun 2003). "Homeodomain proteins MEIS1 and PBXs regulate the lineage-specific transcription of the platelet factor 4 gene". Blood. 101 (12): 4748–56. doi:10.1182/blood-2002-02-0380. PMID 12609849.
• Longobardi E, Blasi F (Oct 2003). "Overexpression of PREP-1 in F9 teratocarcinoma cells leads to a functionally relevant increase of PBX-2 by preventing its degradation". The Journal of Biological Chemistry. 278 (40): 39235–41. doi:10.1074/jbc.M304704200. PMID 12871956.
• Xie T, Rowen L, Aguado B, Ahearn ME, Madan A, Qin S, Campbell RD, Hood L (Dec 2003). "Analysis of the gene-dense major histocompatibility complex class III region and its comparison to mouse". Genome Research. 13 (12): 2621–36. doi:10.1101/gr.1736803. PMC 403804. PMID 14656967.
• Lehner B, Semple JI, Brown SE, Counsell D, Campbell RD, Sanderson CM (Jan 2004). "Analysis of a high-throughput yeast two-hybrid system and its use to predict the function of intracellular proteins encoded within the human MHC class III region". Genomics. 83 (1): 153–67. doi:10.1016/S0888-7543(03)00235-0. PMID 14667819.

External links

• PBX2+protein,+human at the US National Library of Medicine Medical Subject Headings (MeSH)

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