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PBX2 PBX homeobox 2 [ Homo sapiens (human) ]

Gene ID: 5089, updated on 5-Sep-2025
Official Symbol
PBX2provided by HGNC
Official Full Name
PBX homeobox 2provided by HGNC
Primary source
HGNC:HGNC:8633
See related
Ensembl:ENSG00000204304 MIM:176311; AllianceGenome:HGNC:8633
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
G17; HOX12; PBX2MHC
Summary
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. [provided by RefSeq, Jul 2008]
Expression
Ubiquitous expression in placenta (RPKM 34.1), spleen (RPKM 33.9) and 25 other tissues See more
Orthologs
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See PBX2 in Genome Data Viewer
Location:
6p21.32
Exon count:
9
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 6 NC_000006.12 (32184733..32190202, complement)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 6 NC_060930.1 (32037924..32043391, complement)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 6 NC_000006.11 (32152510..32157979, complement)

Chromosome 6 - NC_000006.12Genomic Context describing neighboring genes Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr6:32150105-32150623 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr6:32150624-32151141 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr6:32156057-32156613 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr6:32157766-32158334 Neighboring gene ReSE screen-validated silencer GRCh37_chr6:32158721-32158899 Neighboring gene microRNA 6833 Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr6:32163365-32164145 Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr6:32164146-32164927 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr6:32164928-32165708 Neighboring gene ring finger protein 5 Neighboring gene advanced glycosylation end-product specific receptor Neighboring gene G protein signaling modulator 3 Neighboring gene notch receptor 4 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr6:32222789-32223446 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr6:32223447-32224103 Neighboring gene TSBP1 and BTNL2 antisense RNA 1 Neighboring gene MPRA-validated peak5754 silencer Neighboring gene testis expressed basic protein 1 Neighboring gene heterogeneous nuclear ribonucleoprotein A1 pseudogene 2

  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

EBI GWAS Catalog

Description
A genome-wide association study identifies 2 susceptibility Loci for Crohn's disease in a Japanese population.
EBI GWAS Catalog
Genome-wide association study identifies eight new susceptibility loci for atopic dermatitis in the Japanese population.
EBI GWAS Catalog
Genome-wide association study identifies three new susceptibility loci for adult asthma in the Japanese population.
EBI GWAS Catalog
Products Interactant Other Gene Complex Source Pubs Description

Markers

Gene Ontology Provided by GOA

Process Evidence Code Pubs
involved_in animal organ morphogenesis IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in brain development IBA
Inferred from Biological aspect of Ancestor
more info
 
acts_upstream_of_or_within embryonic limb morphogenesis IEA
Inferred from Electronic Annotation
more info
 
involved_in embryonic organ development IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in eye development IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in neuron development IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in positive regulation of transcription by RNA polymerase II IDA
Inferred from Direct Assay
more info
PubMed 
acts_upstream_of_or_within positive regulation of transcription by RNA polymerase II IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within proximal/distal pattern formation IEA
Inferred from Electronic Annotation
more info
 
involved_in regulation of DNA-templated transcription IEA
Inferred from Electronic Annotation
more info
 
Component Evidence Code Pubs
located_in chromatin ISA
Inferred from Sequence Alignment
more info
 
located_in nucleus IDA
Inferred from Direct Assay
more info
PubMed 
located_in nucleus IEA
Inferred from Electronic Annotation
more info
 
part_of transcription regulator complex IEA
Inferred from Electronic Annotation
more info
 
Preferred Names
pre-B-cell leukemia transcription factor 2
Names
XXbac-BPG300A18.13
homeobox 12
homeobox protein PBX2
pre-B-cell leukemia homeobox 2

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_002586.5NP_002577.2  pre-B-cell leukemia transcription factor 2

    See identical proteins and their annotated locations for NP_002577.2

    Status: REVIEWED

    Source sequence(s)
    AL662884, BC082261, BQ182713, DB162975, X59842
    Consensus CDS
    CCDS4748.1
    UniProtKB/Swiss-Prot
    A2BFJ2, P40425
    UniProtKB/TrEMBL
    A0A024RCR3, A0A1U9X8A1
    Related
    ENSP00000364190.3, ENST00000375050.6
    Conserved Domains (2) summary
    cd00086
    Location:245305
    homeodomain; Homeodomain; DNA binding domains involved in the transcriptional regulation of key eukaryotic developmental processes; may bind to DNA as monomers or as homo- and/or heterodimers, in a sequence-specific manner.
    pfam03792
    Location:50243
    PBC; PBC domain

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2025_08

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000006.12 Reference GRCh38.p14 Primary Assembly

    Range
    32184733..32190202 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_047418839.1XP_047274795.1  pre-B-cell leukemia transcription factor 2 isoform X1

Reference GRCh38.p14 ALT_REF_LOCI_1

Genomic

  1. NT_167244.2 Reference GRCh38.p14 ALT_REF_LOCI_1

    Range
    3517335..3522801 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054328504.1XP_054184479.1  pre-B-cell leukemia transcription factor 2 isoform X1

Reference GRCh38.p14 ALT_REF_LOCI_2

Genomic

  1. NT_113891.3 Reference GRCh38.p14 ALT_REF_LOCI_2

    Range
    3623085..3628551 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054329825.1XP_054185800.1  pre-B-cell leukemia transcription factor 2 isoform X1

Reference GRCh38.p14 ALT_REF_LOCI_4

Genomic

  1. NT_167246.2 Reference GRCh38.p14 ALT_REF_LOCI_4

    Range
    3489714..3495180 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054330606.1XP_054186581.1  pre-B-cell leukemia transcription factor 2 isoform X1

Reference GRCh38.p14 ALT_REF_LOCI_5

Genomic

  1. NT_167247.2 Reference GRCh38.p14 ALT_REF_LOCI_5

    Range
    3526752..3532218 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054330826.1XP_054186801.1  pre-B-cell leukemia transcription factor 2 isoform X1

Reference GRCh38.p14 ALT_REF_LOCI_6

Genomic

  1. NT_167248.2 Reference GRCh38.p14 ALT_REF_LOCI_6

    Range
    3407934..3413401 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054331084.1XP_054187059.1  pre-B-cell leukemia transcription factor 2 isoform X1

Reference GRCh38.p14 ALT_REF_LOCI_7

Genomic

  1. NT_167249.2 Reference GRCh38.p14 ALT_REF_LOCI_7

    Range
    3500940..3506407 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054331347.1XP_054187322.1  pre-B-cell leukemia transcription factor 2 isoform X1

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060930.1 Alternate T2T-CHM13v2.0

    Range
    32037924..32043391 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054355535.1XP_054211510.1  pre-B-cell leukemia transcription factor 2 isoform X1