CRB3 crumbs cell polarity complex component 3 [Homo sapiens (human)] - Gene

Summary

Official Symbol: CRB3provided by HGNC
Official Full Name: crumbs cell polarity complex component 3provided by HGNC
Primary source: HGNC:HGNC:20237
See related: Ensembl:ENSG00000130545 MIM:609737; AllianceGenome:HGNC:20237
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
Summary: This gene encodes a member of the Crumbs family of proteins. This gene is widely expressed in epithelial tissues where the encoded protein isoforms play various roles such as the control of cytokinesis and ciliogenesis or the formation of tight junctions. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2016]
Expression: Broad expression in colon (RPKM 9.7), duodenum (RPKM 9.6) and 16 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 19p13.3

Exon count:: 5

Annotation release	Status	Assembly	Chr	Location
RS_2023_10	current	GRCh38.p14 (GCF_000001405.40)	19	NC_000019.10 (6463777..6467221)
RS_2023_10	current	T2T-CHM13v2.0 (GCF_009914755.1)	19	NC_060943.1 (6450245..6456708)
105.20220307	previous assembly	GRCh37.p13 (GCF_000001405.25)	19	NC_000019.9 (6463788..6467232)

Chromosome 19 - NC_000019.10 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

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Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Fructose-bisphosphatase1 (FBP1) alleviates experimental osteoarthritis by regulating Protein crumbs homolog 3 (CRB3).
Title: Fructose-bisphosphatase1 (FBP1) alleviates experimental osteoarthritis by regulating Protein crumbs homolog 3 (CRB3).
Aberrant epithelial polarity cues drive the development of precancerous airway lesions.
Title: Aberrant epithelial polarity cues drive the development of precancerous airway lesions.
Crumbs protein homolog 3 (CRB3) expression is associated with oestrogen and progesterone receptor positivity in breast cancer.
Title: Crumbs protein homolog 3 (CRB3) expression is associated with oestrogen and progesterone receptor positivity in breast cancer.
The Crb3 may promote colon cancer cell migration by regulating the expression of GSLs on the cell surface.
Title: Crumbs3 regulates the expression of glycosphingolipids on the plasma membrane to promote colon cancer cell migration.
Knockout (KO) of apical polarity determinant Crumbs 3 (Crb3) enhances Adeno-associated viruses (AAV) transduction, while overexpression exerts the opposite effect. Crb3 restricts AAV transduction in a serotype- and cell type-specific manner. Increased availability of galactosylated glycans on the surfaces of Crb3 KO cells, but not the universal AAV receptor, leads to increased capsid attachment and enhanced transduction.
Title: A CRISPR Screen Identifies the Cell Polarity Determinant Crumbs 3 as an Adeno-associated Virus Restriction Factor in Hepatocytes.
CRB3 strongly promotes tumor invasion and metastasis of human colon adenocarcinoma cells. Correlative expression between CRB3 and FGFR1 was consistently detected in primary and metastatic colorectal cancer patient tissues. Taking these together, CRB3 critically accelerates cell migration, namely invasion and metastasis of human colon cancers, through specific interaction to FGFR1 on colon cancer cells.
Title: Crumbs3 is a critical factor that regulates invasion and metastasis of colon adenocarcinoma via the specific interaction with FGFR1.
CRB3 DNA methylation negatively correlated with CRB3 mRNA expression. CRB3 DNA methylation was also related to pathologic stage, T stage, N stage, and M stage of ccRCC.
Title: DNA methylation of CRB3 is a prognostic biomarker in clear cell renal cell carcinoma.
CRB3 is an important regulator for breast cancer stemness, which is associated with tamoxifen resistance.Association between CRB3 and beta-catenin expression levels correlates with tamoxifen resistance of breast cancer.
Title: Elevated CRB3 expression suppresses breast cancer stemness by inhibiting β-catenin signalling to restore tamoxifen sensitivity.
We found that CRB3-induced proliferation is epidermal growth factor (EGF)-independent and occurs through a mechanism that involves secretion of the EGF-family ligand, amphiregulin (AREG)..We identified the FBD-containing protein, EPB41L4B, as an essential mediator of CRB3-driven proliferation and observed that the CRB3-dependent changes in endocytic trafficking were also dependent on EPB41L4B
Title: CRB3 and the FERM protein EPB41L4B regulate proliferation of mammary epithelial cells through the release of amphiregulin.
we report for the first time that CRB3 acts as an upstream regulator of the Hippo pathway to regulate contact inhibition by recruiting other Hippo molecules, such as Kibra and/or FRMD6, in mammary epithelial cells.
Title: CRB3 regulates contact inhibition by activating the Hippo pathway in mammary epithelial cells.

Submit: New GeneRIF Correction See all GeneRIFs (19)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Variation

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See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables SH3 domain binding	IPI Inferred from Physical Interaction more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables protein domain specific binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in establishment or maintenance of epithelial cell apical/basal polarity	NAS Non-traceable Author Statement more info	PubMed
involved_in positive regulation of cell junction assembly	ISS Inferred from Sequence or Structural Similarity more info
involved_in protein localization to plasma membrane	IDA Inferred from Direct Assay more info	PubMed

Component	Evidence Code	Pubs
located_in apical junction complex	NAS Non-traceable Author Statement more info	PubMed
located_in apical plasma membrane	NAS Non-traceable Author Statement more info	PubMed
located_in bicellular tight junction	IEA Inferred from Electronic Annotation more info
located_in cell junction	IDA Inferred from Direct Assay more info
located_in extracellular exosome	HDA more info	PubMed
located_in plasma membrane	TAS Traceable Author Statement more info
part_of subapical complex	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: protein crumbs homolog 3

Names: crumbs 3, cell polarity complex component; crumbs family member 3

NCBI Reference Sequences (RefSeq)

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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.