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SP3 Sp3 transcription factor [ Homo sapiens (human) ]

Gene ID: 6670, updated on 25-Nov-2025
Official Symbol
SP3provided by HGNC
Official Full Name
Sp3 transcription factorprovided by HGNC
Primary source
HGNC:HGNC:11208
See related
Ensembl:ENSG00000172845 MIM:601804; AllianceGenome:HGNC:11208
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
SPR2
Summary
This gene belongs to a family of Sp1 related genes that encode transcription factors that regulate transcription by binding to consensus GC- and GT-box regulatory elements in target genes. This protein contains a zinc finger DNA-binding domain and several transactivation domains, and has been reported to function as a bifunctional transcription factor that either stimulates or represses the transcription of numerous genes. Transcript variants encoding different isoforms have been described for this gene, and one has been reported to initiate translation from a non-AUG (AUA) start codon. Additional isoforms, resulting from the use of alternate downstream translation initiation sites, have also been noted. A related pseudogene has been identified on chromosome 13. [provided by RefSeq, Feb 2010]
Expression
Ubiquitous expression in bone marrow (RPKM 21.0), thyroid (RPKM 19.7) and 25 other tissues See more
Orthologs
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See SP3 in Genome Data Viewer
Location:
2q31.1
Exon count:
7
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 2 NC_000002.12 (173900775..173965702, complement)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 2 NC_060926.1 (174387111..174452024, complement)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 2 NC_000002.11 (174765503..174830430, complement)

Chromosome 2 - NC_000002.12Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC105373745 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 12117 Neighboring gene ribosomal protein L5 pseudogene 7 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 16769 Neighboring gene H3K27ac hESC enhancer GRCh37_chr2:174827792-174828615 Neighboring gene H3K27ac hESC enhancer GRCh37_chr2:174828616-174829438 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 12120 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 12121 Neighboring gene ReSE screen-validated silencer GRCh37_chr2:174857477-174857650 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 12122 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 16770 Neighboring gene P300/CBP strongly-dependent group 1 enhancer GRCh37_chr2:174888471-174889670 Neighboring gene long intergenic non-protein coding RNA 1960 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:174901892-174902392 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:174902393-174902893 Neighboring gene ReSE screen-validated silencer GRCh37_chr2:174904545-174904945 Neighboring gene ribosomal protein SA pseudogene 24

  • 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 of chronic otitis media with effusion and recurrent otitis media identifies a novel susceptibility locus on chromosome 2.
EBI GWAS Catalog
Chromosome 2q31.1 associates with ESRD in women with type 1 diabetes.
EBI GWAS Catalog
Genetic association study of QT interval highlights role for calcium signaling pathways in myocardial repolarization.
EBI GWAS Catalog

Protein interactions

Protein Gene Interaction Pubs
Pol gag-pol Transcription factors Oct-1, Oct-2, PU.1, Sp1, and Sp3 are recruited to the HS7 regulatory site in the pol coding region, suggesting that Oct-1, Oct-2, PU.1, Sp1, and Sp3 indirectly interact with HIV-1 Pol PubMed
Tat tat HIV-1 Tat downregulates SOD2 expression by interacting with Sp1 and Sp3 to increase the Sp3-containing complexes on the basal SOD2 promoter PubMed
tat In hepatic cells, HIV-1 Tat expression upregulates Sp1 and Sp3, which play different roles in regulating MnSOD transcription (overexpression of Sp1 stimulates, while overexpression of Sp3 represses transcriptional activity) PubMed
tat Sp3 represses basal expression from the HIV-1 LTR promoter, and overexpression of Sp3 inhibits HIV-1 Tat-mediated transactivation of the HIV-1 LTR promoter PubMed

Go to the HIV-1, Human Interaction Database

Products Interactant Other Gene Complex Source Pubs Description

Markers

Clone Names

  • DKFZp686O1631

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables DNA binding IEA
Inferred from Electronic Annotation
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 ISA
Inferred from Sequence Alignment
more info
 
enables DNA-binding transcription repressor activity, RNA polymerase II-specific IEA
Inferred from Electronic Annotation
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 RNA polymerase II cis-regulatory region sequence-specific DNA binding ISS
Inferred from Sequence or Structural Similarity
more info
PubMed 
enables RNA polymerase II transcription regulatory region sequence-specific DNA binding IDA
Inferred from Direct Assay
more info
PubMed 
enables RNA polymerase II-specific DNA-binding transcription factor binding IEA
Inferred from Electronic Annotation
more info
 
enables RNA polymerase II-specific DNA-binding transcription factor binding IPI
Inferred from Physical Interaction
more info
PubMed 
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 double-stranded DNA binding IEA
Inferred from Electronic Annotation
more info
 
enables metal ion binding IEA
Inferred from Electronic Annotation
more info
 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables 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 zinc ion binding IEA
Inferred from Electronic Annotation
more info
 
Process Evidence Code Pubs
acts_upstream_of_or_within B cell differentiation IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within T cell differentiation IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within definitive hemopoiesis IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within embryonic camera-type eye morphogenesis IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within embryonic placenta development IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within embryonic process involved in female pregnancy IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within embryonic skeletal system development IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within enucleate erythrocyte differentiation IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within erythrocyte differentiation IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within granulocyte differentiation IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within in utero embryonic development IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within liver development IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within lung development IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within megakaryocyte differentiation IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within monocyte differentiation IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within natural killer cell differentiation IEA
Inferred from Electronic Annotation
more info
 
involved_in negative regulation of DNA-templated transcription IEA
Inferred from Electronic Annotation
more info
 
involved_in negative regulation of DNA-templated transcription IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in negative regulation of DNA-templated transcription NAS
Non-traceable Author Statement
more info
PubMed 
involved_in negative regulation of transcription by RNA polymerase II IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within ossification IEA
Inferred from Electronic Annotation
more info
 
involved_in positive regulation of DNA-templated transcription IDA
Inferred from Direct Assay
more info
PubMed 
involved_in positive regulation of DNA-templated transcription NAS
Non-traceable Author Statement
more info
PubMed 
involved_in positive regulation of transcription by RNA polymerase II IGI
Inferred from Genetic Interaction
more info
PubMed 
involved_in positive regulation of transcription by RNA polymerase II IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in regulation of DNA-templated transcription IDA
Inferred from Direct Assay
more info
PubMed 
involved_in regulation of transcription by RNA polymerase II IBA
Inferred from Biological aspect of Ancestor
more info
 
acts_upstream_of_or_within trophectodermal cell differentiation IEA
Inferred from Electronic Annotation
more info
 
Component Evidence Code Pubs
located_in PML body IEA
Inferred from Electronic Annotation
more info
 
located_in chromatin ISA
Inferred from Sequence Alignment
more info
 
located_in nucleoplasm IDA
Inferred from Direct Assay
more info
 
located_in nucleoplasm TAS
Traceable Author Statement
more info
 
is_active_in nucleus IBA
Inferred from Biological aspect of Ancestor
more info
 
located_in nucleus IC
Inferred by Curator
more info
PubMed 
located_in nucleus IEA
Inferred from Electronic Annotation
more info
 
part_of protein-DNA complex ISS
Inferred from Sequence or Structural Similarity
more info
PubMed 
part_of transcription repressor complex IEA
Inferred from Electronic Annotation
more info
 
Preferred Names
transcription factor Sp3
Names
GC-binding transcription factor Sp3
specificity protein 3

NEW Try the new Transcript table

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_029153.2 RefSeqGene

    Range
    5329..69927
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001017371.5NP_001017371.3  transcription factor Sp3 isoform 2

    See identical proteins and their annotated locations for NP_001017371.3

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) is missing exons 1 and 2 found in transcript variant 1, and has a different 5' end. It initiates translation from a non-AUG (AUA) start site, and encodes an isoform (2) with a shorter N-terminus compared to isoform 1. Alternative translation initiation from downstream, in-frame AUG start codons produces shorter isoforms.
    Source sequence(s)
    AB209334, AC093399, AC106900, AY070137, BQ010796, M97191
    Consensus CDS
    CCDS46452.1
    UniProtKB/TrEMBL
    H0Y6K5
    Related
    ENSP00000406140.3, ENST00000418194.7
    Conserved Domains (4) summary
    COG5048
    Location:568650
    COG5048; FOG: Zn-finger [General function prediction only]
    sd00017
    Location:555577
    ZF_C2H2; C2H2 Zn finger [structural motif]
    pfam00096
    Location:613635
    zf-C2H2; Zinc finger, C2H2 type
    pfam13465
    Location:599622
    zf-H2C2_2; Zinc-finger double domain
  2. NM_001172712.1NP_001166183.1  transcription factor Sp3 isoform 3

    Status: REVIEWED

    Description
    Transcript Variant: This variant (3) uses an alternate in-frame splice site in the 5' coding region, compared to variant 1, resulting in an isoform (3) that is shorter than isoform 1. Alternative translation initiation from downstream, in-frame start codons produces shorter isoforms.
    Source sequence(s)
    AB209334, AY441957, BC143928, BQ010796, M97191
    UniProtKB/TrEMBL
    B7ZLN9
    Related
    ENSP00000413665.1, ENST00000416195.1
    Conserved Domains (4) summary
    COG5048
    Location:633715
    COG5048; FOG: Zn-finger [General function prediction only]
    sd00017
    Location:620642
    ZF_C2H2; C2H2 Zn finger [structural motif]
    pfam00096
    Location:678700
    zf-C2H2; Zinc finger, C2H2 type
    pfam13465
    Location:664687
    zf-H2C2_2; Zinc-finger double domain
  3. NM_003111.5NP_003102.1  transcription factor Sp3 isoform 1

    See identical proteins and their annotated locations for NP_003102.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (1). Alternative translation initiation from downstream, in-frame start codons produces shorter isoforms.
    Source sequence(s)
    AC016737, AC093399, AC106900
    Consensus CDS
    CCDS2254.1
    UniProtKB/Swiss-Prot
    A0AVL9, B4E2B7, Q02447, Q69B26, Q69B27, Q8TD56, Q8WWU4, Q9BQR1
    UniProtKB/TrEMBL
    B7ZLN9
    Related
    ENSP00000310301.6, ENST00000310015.12
    Conserved Domains (4) summary
    COG5048
    Location:636718
    COG5048; FOG: Zn-finger [General function prediction only]
    sd00017
    Location:623645
    ZF_C2H2; C2H2 Zn finger [structural motif]
    pfam00096
    Location:681703
    zf-C2H2; Zinc finger, C2H2 type
    pfam13465
    Location:667690
    zf-H2C2_2; Zinc-finger double 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_000002.12 Reference GRCh38.p14 Primary Assembly

    Range
    173900775..173965702 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060926.1 Alternate T2T-CHM13v2.0

    Range
    174387111..174452024 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)