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TPPP3 tubulin polymerization promoting protein family member 3 [ Homo sapiens (human) ]

Gene ID: 51673, updated on 25-Nov-2025
Official Symbol
TPPP3provided by HGNC
Official Full Name
tubulin polymerization promoting protein family member 3provided by HGNC
Primary source
HGNC:HGNC:24162
See related
Ensembl:ENSG00000159713 MIM:616957; AllianceGenome:HGNC:24162
Gene type
protein coding
RefSeq status
VALIDATED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
p20; CGI-38; TPPP/p20; p25gamma
Summary
Enables tubulin binding activity. Involved in decidualization and microtubule bundle formation. Located in microtubule bundle and perinuclear region of cytoplasm. [provided by Alliance of Genome Resources, Jul 2025]
Expression
Broad expression in lung (RPKM 89.8), placenta (RPKM 51.0) and 18 other tissues See more
Orthologs
NEW
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See TPPP3 in Genome Data Viewer
Location:
16q22.1
Exon count:
6
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 16 NC_000016.10 (67389809..67393498, complement)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 16 NC_060940.1 (73184580..73188269, complement)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 16 NC_000016.9 (67423712..67427401, complement)

Chromosome 16 - NC_000016.10Genomic Context describing neighboring genes Neighboring gene potassium channel tetramerization domain containing 19 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 10964 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 7602 Neighboring gene RN7SK pseudogene 118 Neighboring gene leucine rich repeat containing 36 Neighboring gene RNA, U1 small nuclear 123, pseudogene Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr16:67439721-67440606 Neighboring gene zDHHC palmitoyltransferase 1 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr16:67440607-67441493 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr16:67441494-67442379 Neighboring gene uncharacterized LOC124903702 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr16:67450269-67450926 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr16:67454837-67455408 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr16:67458128-67458722 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr16:67461918-67462452 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr16:67462453-67462987 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 7604 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 7605 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr16:67469389-67469890 Neighboring gene hydroxysteroid 11-beta dehydrogenase 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?
Products Interactant Other Gene Complex Source Pubs Description

Markers

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables tubulin binding IBA
Inferred from Biological aspect of Ancestor
more info
 
enables tubulin binding IDA
Inferred from Direct Assay
more info
PubMed 
enables tubulin binding IEA
Inferred from Electronic Annotation
more info
 
Process Evidence Code Pubs
involved_in decidualization IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in embryo implantation IEA
Inferred from Electronic Annotation
more info
 
involved_in embryo implantation ISS
Inferred from Sequence or Structural Similarity
more info
 
involved_in microtubule bundle formation IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in microtubule bundle formation IDA
Inferred from Direct Assay
more info
PubMed 
involved_in microtubule polymerization IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in microtubule polymerization IEA
Inferred from Electronic Annotation
more info
 
involved_in positive regulation of protein polymerization IBA
Inferred from Biological aspect of Ancestor
more info
 
Component Evidence Code Pubs
located_in cytoplasm IEA
Inferred from Electronic Annotation
more info
 
located_in cytoskeleton IEA
Inferred from Electronic Annotation
more info
 
colocalizes_with microtubule IBA
Inferred from Biological aspect of Ancestor
more info
 
located_in microtubule IEA
Inferred from Electronic Annotation
more info
 
colocalizes_with microtubule bundle IDA
Inferred from Direct Assay
more info
PubMed 
colocalizes_with perinuclear region of cytoplasm IDA
Inferred from Direct Assay
more info
PubMed 
Preferred Names
tubulin polymerization-promoting protein family member 3
Names
brain specific protein

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.

mRNA and Protein(s)

  1. NM_015964.4NP_057048.2  tubulin polymerization-promoting protein family member 3

    See identical proteins and their annotated locations for NP_057048.2

    Status: VALIDATED

    Description
    Transcript Variant: This variant (2) differs in the 5' UTR, compared to variant 1. Both variants 1 and 2 encode the same protein.
    Source sequence(s)
    BC000691, BQ640401
    Consensus CDS
    CCDS10835.1
    UniProtKB/Swiss-Prot
    Q49AH9, Q9BW30, Q9Y326, Q9Y6H0
    Related
    ENSP00000377529.2, ENST00000393957.7
    Conserved Domains (1) summary
    pfam05517
    Location:11166
    p25-alpha; p25-alpha
  2. NM_016140.4NP_057224.2  tubulin polymerization-promoting protein family member 3

    See identical proteins and their annotated locations for NP_057224.2

    Status: VALIDATED

    Description
    Transcript Variant: This variant (1) represents the longer transcript. Both variants 1 and 2 encode the same protein.
    Source sequence(s)
    BC000691, BI754230
    Consensus CDS
    CCDS10835.1
    UniProtKB/Swiss-Prot
    Q49AH9, Q9BW30, Q9Y326, Q9Y6H0
    Related
    ENSP00000290942.5, ENST00000290942.9
    Conserved Domains (1) summary
    pfam05517
    Location:11166
    p25-alpha; p25-alpha

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_000016.10 Reference GRCh38.p14 Primary Assembly

    Range
    67389809..67393498 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_024450294.2XP_024306062.1  tubulin polymerization-promoting protein family member 3 isoform X1

    UniProtKB/Swiss-Prot
    Q49AH9, Q9BW30, Q9Y326, Q9Y6H0
    Related
    ENSP00000544072.1, ENST00000874013.1
    Conserved Domains (1) summary
    pfam05517
    Location:11166
    p25-alpha; p25-alpha

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060940.1 Alternate T2T-CHM13v2.0

    Range
    73184580..73188269 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)