Cd9 CD9 molecule [Rattus norvegicus (Norway rat)] - Gene

Summary

Official Symbol: Cd9provided by RGD
Official Full Name: CD9 moleculeprovided by RGD
Primary source: RGD:2318
See related: Ensembl:ENSRNOG00000019556 AllianceGenome:RGD:2318
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Rattus norvegicus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Rattus
Summary: Enables integrin binding activity. Involved in oligodendrocyte development. Located in apical plasma membrane; cell surface; and extracellular exosome. Human ortholog(s) of this gene implicated in prostate adenocarcinoma. Orthologous to human CD9 (CD9 molecule). [provided by Alliance of Genome Resources, Jul 2025]
Expression: Biased expression in Lung (RPKM 2035.2), Adrenal (RPKM 695.5) and 7 other tissues See more
Orthologs: all
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Genomic context

Location:: 4q42

Exon count:: 7

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCr8 (GCF_036323735.1)	4	NC_086022.1 (159942553..159975463, complement)
RS_2023_06	previous assembly	mRatBN7.2 (GCF_015227675.2)	4	NC_051339.1 (158256328..158289136, complement)
106	previous assembly	Rnor_6.0 (GCF_000001895.5)	4	NC_005103.4 (157977163..158010091, complement)

Chromosome 4 - NC_086022.1 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: A rat RNA-Seq transcriptomic BodyMap across 11 organs and 4 developmental stages
Description: 320 RNA samples isolated from 11 organs (adrenal gland, brain, heart, kidney, liver, lung, muscle, spleen, thymus, and testes or uterus) from both sexes of Fischer 344 rats across four developmental stages (2-, 6-, 21-, and 104-weeks-old)
BioProject: PRJNA238328
Publication: PMID 24510058
Analysis date: Mon Jun 6 17:44:12 2016

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Fluctuation of CD9/SOX2-positive cell populations during the turnover of GH- and TSH-producing cells in the adult anterior pituitary gland.
Title: Fluctuation of CD9/SOX2-positive cell populations during the turnover of GH- and TSH-producing cells in the adult anterior pituitary gland.
CD9-positive cells in the intermediate lobe migrate into the anterior lobe to supply endocrine cells.
Title: CD9-positive cells in the intermediate lobe migrate into the anterior lobe to supply endocrine cells.
Expression and functions of cluster of differentiation 9 and 81 in rat mammary epithelial cells.
Title: Expression and functions of cluster of differentiation 9 and 81 in rat mammary epithelial cells.
chemotaxis toward antigen is controlled in mast cells by a cross-talk among FcepsilonRI, tetraspanin CD9, transmembrane adaptor proteins NTAL and LAT, and cytoskeleton-regulatory proteins of the ERM family
Title: Cross-talk between tetraspanin CD9 and transmembrane adaptor protein non-T cell activation linker (NTAL) in mast cell activation and chemotaxis.
During spermatogenic cell apoptosis, integrin beta1, alpha3, and alpha6 subunits, and tetraspanins CD9 and C81 become displaced away from the developing apoptotic bodies.
Title: Role of integrins, tetraspanins, and ADAM proteins during the development of apoptotic bodies by spermatogenic cells.

Submit: New GeneRIF Correction

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

RH139130 (e-PCR)
- UniSTS:221216

D4Got131 (e-PCR)
- UniSTS:115260

Gene Ontology Provided by RGD

Function	Evidence Code	Pubs
enables integrin binding	IEA Inferred from Electronic Annotation more info
enables integrin binding	IPI Inferred from Physical Interaction more info	PubMed
enables integrin binding	ISO Inferred from Sequence Orthology more info
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in cell adhesion	IEA Inferred from Electronic Annotation more info
involved_in cell adhesion	ISO Inferred from Sequence Orthology more info
involved_in cell adhesion	ISS Inferred from Sequence or Structural Similarity more info
involved_in cell differentiation	IEA Inferred from Electronic Annotation more info
involved_in cellular response to low-density lipoprotein particle stimulus	IEA Inferred from Electronic Annotation more info
involved_in cellular response to low-density lipoprotein particle stimulus	ISO Inferred from Sequence Orthology more info
involved_in cellular response to low-density lipoprotein particle stimulus	ISS Inferred from Sequence or Structural Similarity more info
involved_in fusion of sperm to egg plasma membrane involved in single fertilization	IEA Inferred from Electronic Annotation more info
involved_in fusion of sperm to egg plasma membrane involved in single fertilization	ISO Inferred from Sequence Orthology more info
involved_in fusion of sperm to egg plasma membrane involved in single fertilization	ISS Inferred from Sequence or Structural Similarity more info
involved_in glial cell migration	IEA Inferred from Electronic Annotation more info
involved_in glial cell migration	ISO Inferred from Sequence Orthology more info
involved_in myoblast fusion involved in skeletal muscle regeneration	IEA Inferred from Electronic Annotation more info
involved_in myoblast fusion involved in skeletal muscle regeneration	ISO Inferred from Sequence Orthology more info
involved_in myoblast fusion involved in skeletal muscle regeneration	ISS Inferred from Sequence or Structural Similarity more info
acts_upstream_of_or_within negative regulation of cell population proliferation	ISO Inferred from Sequence Orthology more info
involved_in negative regulation of platelet aggregation	IEA Inferred from Electronic Annotation more info
involved_in negative regulation of platelet aggregation	ISO Inferred from Sequence Orthology more info
involved_in negative regulation of platelet aggregation	ISS Inferred from Sequence or Structural Similarity more info
involved_in nervous system development	IEA Inferred from Electronic Annotation more info
involved_in oligodendrocyte development	IEP Inferred from Expression Pattern more info	PubMed
involved_in paranodal junction assembly	IEA Inferred from Electronic Annotation more info
involved_in paranodal junction assembly	ISO Inferred from Sequence Orthology more info
involved_in paranodal junction assembly	ISS Inferred from Sequence or Structural Similarity more info
involved_in receptor internalization	IEA Inferred from Electronic Annotation more info
involved_in receptor internalization	ISO Inferred from Sequence Orthology more info
involved_in receptor internalization	ISS Inferred from Sequence or Structural Similarity more info
involved_in regulation of macrophage migration	IEA Inferred from Electronic Annotation more info
involved_in regulation of macrophage migration	ISO Inferred from Sequence Orthology more info
involved_in single fertilization	IEA Inferred from Electronic Annotation more info
involved_in single fertilization	ISO Inferred from Sequence Orthology more info
involved_in single fertilization	ISS Inferred from Sequence or Structural Similarity more info
involved_in sperm-egg recognition	IEA Inferred from Electronic Annotation more info
involved_in sperm-egg recognition	ISO Inferred from Sequence Orthology more info
involved_in sperm-egg recognition	ISS Inferred from Sequence or Structural Similarity more info

Component	Evidence Code	Pubs
located_in apical plasma membrane	IDA Inferred from Direct Assay more info	PubMed
located_in cell surface	IDA Inferred from Direct Assay more info	PubMed
located_in cell surface	IEA Inferred from Electronic Annotation more info
located_in cell surface	ISO Inferred from Sequence Orthology more info
located_in external side of plasma membrane	IEA Inferred from Electronic Annotation more info
located_in external side of plasma membrane	ISO Inferred from Sequence Orthology more info
located_in extracellular exosome	IDA Inferred from Direct Assay more info	PubMed
located_in extracellular exosome	IEA Inferred from Electronic Annotation more info
located_in extracellular exosome	ISO Inferred from Sequence Orthology more info
located_in extracellular region	IEA Inferred from Electronic Annotation more info
located_in membrane	IEA Inferred from Electronic Annotation more info
located_in membrane	ISO Inferred from Sequence Orthology more info
is_active_in plasma membrane	IBA Inferred from Biological aspect of Ancestor more info
located_in plasma membrane	IEA Inferred from Electronic Annotation more info
located_in plasma membrane	ISO Inferred from Sequence Orthology more info
part_of protein-containing complex	IEA Inferred from Electronic Annotation more info
part_of protein-containing complex	ISO Inferred from Sequence Orthology more info

General protein information

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Preferred Names: CD9 antigen

Names: CD9 antigen (p24)

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.

mRNA and Protein(s)

NM_053018.1 → NP_444177.1 CD9 antigen

See identical proteins and their annotated locations for NP_444177.1

Status: VALIDATED

Source sequence(s)

BG670145, BQ202980, CF111078, X76489

UniProtKB/Swiss-Prot

P40241

UniProtKB/TrEMBL

B1WBM0

Related

ENSRNOP00000026633.5, ENSRNOT00000026633.9

Conserved Domains (2) summary

cd03152
Location:109 → 191

CD9_LEL; Tetraspanin, extracellular domain or large extracellular loop (LEL), CD9 family. Tetraspanins are trans-membrane proteins with 4 trans-membrane segments. Both the N- and C-termini lie on the intracellular side of the membrane. This alignment model spans ...

pfam00335
Location:10 → 215

Tetraspannin; Tetraspanin family