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HOXD13 homeobox D13 [ Homo sapiens (human) ]

Gene ID: 3239, updated on 3-Mar-2026
Official Symbol
HOXD13provided by HGNC
Official Full Name
homeobox D13provided by HGNC
Primary source
HGNC:HGNC:5136
See related
Ensembl:ENSG00000128714 MIM:142989; AllianceGenome:HGNC:5136
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
BDE; SPD; BDSD; SPD1; HOX4I
Summary
This gene belongs to the homeobox family of genes. The homeobox genes encode a highly conserved family of transcription factors that play an important role in morphogenesis in all multicellular organisms. Mammals possess four similar homeobox gene clusters, HOXA, HOXB, HOXC and HOXD, located on different chromosomes, consisting of 9 to 11 genes arranged in tandem. This gene is one of several homeobox HOXD genes located in a cluster on chromosome 2. Deletions that remove the entire HOXD gene cluster or the 5' end of this cluster have been associated with severe limb and genital abnormalities. Mutations in this particular gene cause synpolydactyly. [provided by RefSeq, Jul 2008]
Expression
Biased expression in colon (RPKM 2.7), prostate (RPKM 2.6) and 1 other tissue See more
Orthologs
Try the new Gene page
Try the new Transcripts and proteins table
See HOXD13 in Genome Data Viewer
Location:
2q31.1
Exon count:
4
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 2 NC_000002.12 (176087487..176095944)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 2 NC_060926.1 (176580842..176584065)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 2 NC_000002.11 (176957449..176960672)

Chromosome 2 - NC_000002.12Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC107985830 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:176937398-176937898 Neighboring gene VISTA enhancer hs246 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:176943643-176944284 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:176947449-176948064 Neighboring gene even-skipped homeobox 2 Neighboring gene NUP98-HOXD13 recombination region Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:176950515-176951339 Neighboring gene OCT4-NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:176961670-176962253 Neighboring gene OCT4-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:176962254-176962836 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:176964378-176965110 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:176968878-176969864 Neighboring gene homeobox D12 Neighboring gene homeobox D11 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:176980400-176981072

  • 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?

Associated conditions

Description Tests
Brachydactyly type D
MedGen: C0220664 OMIM: 113200 GeneReviews: Not available
Compare labs
Brachydactyly type E1
MedGen: C1862102 OMIM: 113300 GeneReviews: Not available
Compare labs
Brachydactyly-syndactyly syndrome
MedGen: C1853137 OMIM: 610713 GeneReviews: Not available
Compare labs
Syndactyly type 5
MedGen: C1861348 OMIM: 186300 GeneReviews: Not available
Compare labs
Synpolydactyly type 1
MedGen: C5574994 OMIM: 186000 GeneReviews: Not available
Compare labs

Copy number response

Description
Copy number response
Triplosensitivity

No evidence available (Last evaluated 2020-09-23)

ClinGen Genome Curation Page
Haploinsufficency

Sufficient evidence for dosage pathogenicity (Last evaluated 2020-09-23)

ClinGen Genome Curation PagePubMed
Products Interactant Other Gene Complex Source Pubs Description

Markers

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables DNA binding IDA
Inferred from Direct Assay
more info
PubMed 
enables DNA binding IEA
Inferred from Electronic Annotation
more info
 
enables DNA binding TAS
Traceable Author Statement
more info
PubMed 
enables DNA-binding transcription activator activity, RNA polymerase II-specific IEA
Inferred from Electronic Annotation
more info
 
enables DNA-binding transcription activator activity, RNA polymerase II-specific IMP
Inferred from Mutant Phenotype
more info
PubMed 
enables DNA-binding transcription factor activity IEA
Inferred from Electronic Annotation
more info
 
enables DNA-binding transcription factor activity ISS
Inferred from Sequence or Structural Similarity
more info
 
enables DNA-binding transcription factor activity, RNA polymerase II-specific IBA
Inferred from Biological aspect of Ancestor
more info
 
enables DNA-binding transcription factor activity, RNA polymerase II-specific IEA
Inferred from Electronic Annotation
more info
 
enables DNA-binding transcription factor activity, RNA polymerase II-specific ISA
Inferred from Sequence Alignment
more info
 
enables RNA polymerase II cis-regulatory region sequence-specific DNA binding IBA
Inferred from Biological aspect of Ancestor
more info
 
enables RNA polymerase II cis-regulatory region sequence-specific DNA binding IEA
Inferred from Electronic Annotation
more info
 
enables chromatin binding IEA
Inferred from Electronic Annotation
more info
 
enables cis-regulatory region sequence-specific DNA binding IEA
Inferred from Electronic Annotation
more info
 
enables sequence-specific double-stranded DNA binding IDA
Inferred from Direct Assay
more info
PubMed 
enables sequence-specific double-stranded DNA binding IEA
Inferred from Electronic Annotation
more info
 
Component Evidence Code Pubs
located_in chromatin ISA
Inferred from Sequence Alignment
more info
 
is_active_in nucleus IBA
Inferred from Biological aspect of Ancestor
more info
 
located_in nucleus IEA
Inferred from Electronic Annotation
more info
 
Preferred Names
homeobox protein Hox-D13
Names
homeo box 4I
homeo box D13
homeobox protein Hox-4I
synpolydactyly

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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.

Genomic

  1. NG_008137.1 RefSeqGene

    Range
    4918..8141
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_000523.4NP_000514.2  homeobox protein Hox-D13

    See identical proteins and their annotated locations for NP_000514.2

    Status: REVIEWED

    Source sequence(s)
    AC009336, BX100910
    Consensus CDS
    CCDS2264.2
    UniProtKB/Swiss-Prot
    P35453
    Related
    ENSP00000376322.3, ENST00000392539.4
    Conserved Domains (2) summary
    cd00086
    Location:277333
    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.
    pfam12284
    Location:39174
    HoxA13_N; Hox protein A13 N terminal

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_000002.12 Reference GRCh38.p14 Primary Assembly

    Range
    176087487..176095944
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_011511068.3XP_011509370.1  homeobox protein Hox-D13 isoform X1

    Conserved Domains (1) summary
    pfam00046
    Location:260313
    Homeobox; Homeobox domain
  2. XM_011511069.3XP_011509371.1  homeobox protein Hox-D13 isoform X2

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060926.1 Alternate T2T-CHM13v2.0

    Range
    176580842..176584065
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)