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Aliases for POC1B Gene

Aliases for POC1B Gene

  • POC1 Centriolar Protein B 2 3 5
  • Proteome Of Centriole Protein 1B 3 4
  • WD Repeat-Containing Protein 51B 3 4
  • WDR51B 3 4
  • PIX1 3 4
  • POC1 Centriolar Protein Homolog B (Chlamydomonas) 2
  • POC1 Centriolar Protein Homolog B 3
  • WD Repeat Domain 51B 2
  • CORD20 3
  • TUWD12 3

External Ids for POC1B Gene

Previous HGNC Symbols for POC1B Gene

  • WDR51B

Previous GeneCards Identifiers for POC1B Gene

  • GC12M089814
  • GC12M086879

Summaries for POC1B Gene

Entrez Gene Summary for POC1B Gene

  • POC1 proteins contain an N-terminal WD40 domain and a C-terminal coiled coil domain and are part of centrosomes. They play an important role in basal body and cilia formation. This gene encodes one of the two POC1 proteins found in humans. Mutation in this gene result in autosomal-recessive cone-rod dystrophy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2014]

GeneCards Summary for POC1B Gene

POC1B (POC1 Centriolar Protein B) is a Protein Coding gene. Diseases associated with POC1B include Cone-Rod Dystrophy 20 and Retinitis Pigmentosa. An important paralog of this gene is POC1A.

UniProtKB/Swiss-Prot for POC1B Gene

  • Plays an important role in centriole assembly and/or stability and ciliogenesis (PubMed:20008567). Involved in early steps of centriole duplication, as well as in the later steps of centriole length control (PubMed:19109428). Acts in concert with POC1A to ensure centriole integrity and proper mitotic spindle formation. Required for primary cilia formation, ciliary length and also cell proliferation (PubMed:23015594). Required for retinal integrity (PubMed:25044745).

Additional gene information for POC1B Gene

No data available for CIViC summary , Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for POC1B Gene

Genomics for POC1B Gene

GeneHancer (GH) Regulatory Elements for POC1B Gene

Promoters and enhancers for POC1B Gene
GeneHancer (GH) Identifier GH Type GH
GH Sources Gene Association Score Total Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor
Binding Sites
Gene Targets
GH12I089521 Promoter/Enhancer 2.3 EPDnew Ensembl ENCODE dbSUPER 550.8 +2.1 2132 5.8 ZFP64 DMAP1 IRF4 YY1 ZNF213 E2F8 ZNF143 SP3 MEF2D ZNF610 GALNT4 POC1B POC1B-AS1 POC1B-GALNT4 ENSG00000258302 DUSP6 CENPCP1
GH12I089345 Promoter/Enhancer 2.6 EPDnew FANTOM5 Ensembl ENCODE dbSUPER 12.7 +174.8 174763 13.9 MLX FEZF1 DMAP1 IRF4 YY1 SLC30A9 ZNF213 ZNF143 SP3 NFYC DUSP6 ENSG00000274021 GC12P089353 GC12P089354 LOC105369889 PIR45161 GALNT4 POC1B RNU7-120P ATP2B1
GH12I089019 Promoter/Enhancer 1.5 Ensembl ENCODE dbSUPER 12.1 +506.7 506715 0.8 FOXA2 SIN3A ZNF2 DNMT3B RAD21 YY1 ZNF335 ZNF213 SCRT2 ZNF143 LINC02458 GALNT4 POC1B DUSP6 GC12M088882
GH12I089039 Enhancer 1.4 FANTOM5 Ensembl ENCODE dbSUPER 10.5 +485.9 485923 1.3 CTCF GTF2E2 MAX CEBPG BATF ZIC2 POLR2A NFATC1 SCRT2 ETV6 DUSP6 POC1B GALNT4 LOC100287355 LOC105378255
GH12I089017 Enhancer 1.2 Ensembl ENCODE dbSUPER 12.1 +509.0 509012 0.5 RAD21 RFX5 GTF3C2 ZNF335 POLR3A ZNF366 ZNF143 RCOR1 KLF13 EGR2 GALNT4 POC1B DUSP6 LINC02458 GC12M088882
- Elite GeneHancer and/or Elite GeneHancer-gene association Download GeneHancer data dump

GeneHancers around POC1B on UCSC Golden Path with GeneCards custom track

Genomic Locations for POC1B Gene

Genomic Locations for POC1B Gene
106,545 bases
Minus strand

Genomic View for POC1B Gene

Genes around POC1B on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
POC1B Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for POC1B Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for POC1B Gene

Proteins for POC1B Gene

  • Protein details for POC1B Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    POC1 centriolar protein homolog B
    Protein Accession:
    Secondary Accessions:
    • G3V1X0

    Protein attributes for POC1B Gene

    478 amino acids
    Molecular mass:
    53668 Da
    Quaternary structure:
    • Interacts with POC1A (PubMed:23015594). Interacts with FAM161A (PubMed:25018096).

    Alternative splice isoforms for POC1B Gene


neXtProt entry for POC1B Gene

Post-translational modifications for POC1B Gene

No data available for DME Specific Peptides for POC1B Gene

Domains & Families for POC1B Gene

Gene Families for POC1B Gene

Human Protein Atlas (HPA):
  • Disease related genes
  • Predicted intracellular proteins

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the WD repeat POC1 family.
  • Belongs to the WD repeat POC1 family.
genes like me logo Genes that share domains with POC1B: view

Function for POC1B Gene

Molecular function for POC1B Gene

UniProtKB/Swiss-Prot Function:
Plays an important role in centriole assembly and/or stability and ciliogenesis (PubMed:20008567). Involved in early steps of centriole duplication, as well as in the later steps of centriole length control (PubMed:19109428). Acts in concert with POC1A to ensure centriole integrity and proper mitotic spindle formation. Required for primary cilia formation, ciliary length and also cell proliferation (PubMed:23015594). Required for retinal integrity (PubMed:25044745).

Phenotypes From GWAS Catalog for POC1B Gene

Gene Ontology (GO) - Molecular Function for POC1B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005515 protein binding IPI 23015594
genes like me logo Genes that share ontologies with POC1B: view
genes like me logo Genes that share phenotypes with POC1B: view

Human Phenotype Ontology for POC1B Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

miRNA for POC1B Gene

miRTarBase miRNAs that target POC1B

Clone Products

No data available for Enzyme Numbers (IUBMB) , Animal Models , Transcription Factor Targets and HOMER Transcription for POC1B Gene

Localization for POC1B Gene

Subcellular locations from UniProtKB/Swiss-Prot for POC1B Gene

Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, centriole. Cytoplasm, cytoskeleton, cilium basal body. Cytoplasm, cytoskeleton, spindle pole. Note=Component of both mother and daughter centrioles. Localizes to the basal body and centriole adjacent to the connecting cilium of photoreceptors and in synapses of the outer plexiform layer. {ECO:0000250 UniProtKB:Q8BHD1}.

Subcellular locations from

Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for POC1B gene
Compartment Confidence
cytoskeleton 5
cytosol 3
nucleus 2

Gene Ontology (GO) - Cellular Components for POC1B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000922 spindle pole IDA 23015594
GO:0005737 cytoplasm IEA --
GO:0005813 centrosome IDA 21399614
GO:0005814 centriole IDA,IEA 20008567
GO:0005856 cytoskeleton IEA --
genes like me logo Genes that share ontologies with POC1B: view

No data available for Subcellular locations from the Human Protein Atlas (HPA) for POC1B Gene

Pathways & Interactions for POC1B Gene

SuperPathways for POC1B Gene

No Data Available

Gene Ontology (GO) - Biological Process for POC1B Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0001895 retina homeostasis IMP 25044745
GO:0008283 cell proliferation IMP 23015594
GO:0030030 cell projection organization IEA --
GO:0060271 cilium assembly IMP 20008567
genes like me logo Genes that share ontologies with POC1B: view

No data available for Pathways by source and SIGNOR curated interactions for POC1B Gene

Drugs & Compounds for POC1B Gene

No Compound Related Data Available

Transcripts for POC1B Gene

Unigene Clusters for POC1B Gene

POC1 centriolar protein homolog B (Chlamydomonas):
Representative Sequences:

Clone Products

Alternative Splicing Database (ASD) splice patterns (SP) for POC1B Gene

No ASD Table

Relevant External Links for POC1B Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for POC1B Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and CGAP SAGE for POC1B Gene

Protein differential expression in normal tissues from HIPED for POC1B Gene

This gene is overexpressed in Amniocyte (57.6) and Platelet (11.1).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, MaxQB, and MOPED for POC1B Gene

Protein tissue co-expression partners for POC1B Gene

NURSA nuclear receptor signaling pathways regulating expression of POC1B Gene:


SOURCE GeneReport for Unigene cluster for POC1B Gene:


mRNA Expression by UniProt/SwissProt for POC1B Gene:

Tissue specificity: Expressed in the retina.

Evidence on tissue expression from TISSUES for POC1B Gene

  • Nervous system(2.6)

Phenotype-based relationships between genes and organs from Gene ORGANizer for POC1B Gene

Germ Layers:
  • ectoderm
  • endoderm
  • mesoderm
  • cardiovascular
  • endocrine
  • immune
  • integumentary
  • nervous
  • reproductive
  • skeletal muscle
Head and neck:
  • brain
  • cerebellum
  • cranial nerve
  • ear
  • eye
  • head
  • lacrimal apparatus
  • pituitary gland
  • breast
  • ovary
  • penis
  • prostate
  • testicle
  • uterus
  • vagina
  • vulva
  • blood
  • blood vessel
  • hair
  • peripheral nervous system
  • skin
genes like me logo Genes that share expression patterns with POC1B: view

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery and mRNA differential expression in normal tissues for POC1B Gene

Orthologs for POC1B Gene

This gene was present in the common ancestor of animals and fungi.

Orthologs for POC1B Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia POC1B 33 34
  • 99.86 (n)
(Canis familiaris)
Mammalia POC1B 33 34
  • 90.09 (n)
(Bos Taurus)
Mammalia WDR51B 34
  • 90 (a)
POC1B 33
  • 89.24 (n)
(Rattus norvegicus)
Mammalia Poc1b 33
  • 82.95 (n)
(Mus musculus)
Mammalia Poc1b 33 16 34
  • 81.93 (n)
(Monodelphis domestica)
Mammalia POC1B 34
  • 70 (a)
(Ornithorhynchus anatinus)
Mammalia POC1B 34
  • 67 (a)
(Gallus gallus)
Aves WDR51B 33 34
  • 69.25 (n)
(Anolis carolinensis)
Reptilia POC1B 34
  • 58 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia poc1b 33
  • 68.22 (n)
(Danio rerio)
Actinopterygii poc1b 33 34
  • 60.23 (n)
-- 33
fruit fly
(Drosophila melanogaster)
Insecta Poc1 34
  • 37 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes RSA4 34
  • 17 (a)
Species where no ortholog for POC1B was found in the sources mined by GeneCards:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for POC1B Gene

Gene Tree for POC1B (if available)
Gene Tree for POC1B (if available)

Paralogs for POC1B Gene

Variants for POC1B Gene

Sequence variations from dbSNP and Humsavar for POC1B Gene

SNP ID Clin Chr 12 pos Variation AA Info Type
rs587777693 pathogenic, Cone-rod dystrophy 20 89,497,242(-) CTGC/C coding_sequence_variant, inframe_deletion, intron_variant
rs587777694 pathogenic, Cone-rod dystrophy 20 89,470,360(-) C/A splice_donor_variant
rs76216585 pathogenic, Cone-rod dystrophy 20, Cone-rod dystrophy 20 (CORD20) [MIM:615973] 89,492,071(-) C/A/G/T coding_sequence_variant, missense_variant, non_coding_transcript_variant
rs863223348 likely-pathogenic, Childhood-Onset Schizophrenia 89,523,356(-) G/A intron_variant
rs1000004410 -- 89,490,608(-) G/A intron_variant

Structural Variations from Database of Genomic Variants (DGV) for POC1B Gene

Variant ID Type Subtype PubMed ID
nsv975519 CNV duplication 23825009
nsv832479 CNV gain 17160897
nsv478578 CNV novel sequence insertion 20440878
nsv1047444 CNV loss 25217958
esv3630319 CNV loss 21293372
esv3630318 CNV loss 21293372
esv3580371 CNV loss 25503493
esv2576321 CNV insertion 19546169

Variation tolerance for POC1B Gene

Residual Variation Intolerance Score: 51.4% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 1.85; 34.65% of all genes are more intolerant (likely to be disease-causing)

Additional Variant Information for POC1B Gene

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for POC1B Gene

Disorders for POC1B Gene

MalaCards: The human disease database

(4) MalaCards diseases for POC1B Gene - From: HGMD, OMIM, ClinVar, GTR, Orphanet, Swiss-Prot, DISEASES, and GeneCards

Disorder Aliases PubMed IDs
cone-rod dystrophy 20
  • cord20
retinitis pigmentosa
  • rp
cone-rod dystrophy 2
  • cord2
  • achm
- elite association - COSMIC cancer census association via MalaCards
Search POC1B in MalaCards View complete list of genes associated with diseases


  • Cone-rod dystrophy 20 (CORD20) [MIM:615973]: A form of cone-rod dystrophy, an inherited retinal dystrophy characterized by retinal pigment deposits visible on fundus examination, predominantly in the macular region, and initial loss of cone photoreceptors followed by rod degeneration. This leads to decreased visual acuity and sensitivity in the central visual field, followed by loss of peripheral vision. Severe loss of vision occurs earlier than in retinitis pigmentosa, due to cone photoreceptors degenerating at a higher rate than rod photoreceptors. {ECO:0000269 PubMed:24945461, ECO:0000269 PubMed:25018096, ECO:0000269 PubMed:25044745}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Additional Disease Information for POC1B

Genetic Association Database
Human Genome Epidemiology Navigator
ATLAS of Genetics and Cytogenetics in Oncology and Haematology
genes like me logo Genes that share disorders with POC1B: view

No data available for Genatlas for POC1B Gene

Publications for POC1B Gene

  1. Molecular architecture of the centriole proteome: the conserved WD40 domain protein POC1 is required for centriole duplication and length control. (PMID: 19109428) Keller LC … Marshall WF (Molecular biology of the cell 2009) 2 3 4 58
  2. Disruption of the basal body protein POC1B results in autosomal-recessive cone-rod dystrophy. (PMID: 25018096) Roosing S … Cremers FP (American journal of human genetics 2014) 3 4 58
  3. Mutation of POC1B in a severe syndromic retinal ciliopathy. (PMID: 25044745) Beck BB … Bolz HJ (Human mutation 2014) 3 4 58
  4. Novel recessive cone-rod dystrophy caused by POC1B mutation. (PMID: 24945461) Durlu YK … Tolun A (JAMA ophthalmology 2014) 3 4 58
  5. Poc1A and Poc1B act together in human cells to ensure centriole integrity. (PMID: 23015594) Venoux M … Fry AM (Journal of cell science 2013) 3 4 58

Products for POC1B Gene

Sources for POC1B Gene

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