Ric8a RIC8 guanine nucleotide exchange factor A [Mus musculus (house mouse)] - Gene

Summary

Official Symbol: Ric8aprovided by MGI
Official Full Name: RIC8 guanine nucleotide exchange factor Aprovided by MGI
Primary source: MGI:MGI:2141866
See related: Ensembl:ENSMUSG00000025485 AllianceGenome:MGI:2141866
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Mus musculus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus
Also known as: Ric8; RIC-8
Summary: Enables G-protein alpha-subunit binding activity and protein folding chaperone. Involved in G protein-coupled receptor signaling pathway. Acts upstream of or within several processes, including basement membrane organization; gastrulation; and visual learning. Located in membrane. Is active in plasma membrane. Is expressed in several structures, including alimentary system; extraembryonic component; female reproductive system; nervous system; and sensory organ. Orthologous to human RIC8A (RIC8 guanine nucleotide exchange factor A). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Ubiquitous expression in lung adult (RPKM 26.2), thymus adult (RPKM 23.8) and 28 other tissues See more
Orthologs: human all
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Genomic context

Location:: 7 F4; 7 86.06 cM

Exon count:: 10

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCm39 (GCF_000001635.27)	7	NC_000073.7 (140437310..140443644)
108.20200622	previous assembly	GRCm38.p6 (GCF_000001635.26)	7	NC_000073.6 (140857397..140863731)

Chromosome 7 - NC_000073.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

circPDE4B prevents articular cartilage degeneration and promotes repair by acting as a scaffold for RIC8A and MID1.
Title: circPDE4B prevents articular cartilage degeneration and promotes repair by acting as a scaffold for RIC8A and MID1.
In conditional Ric8a knockout mice the absence of RIC8A severely affected the attachment and positioning of radial glial processes, Cajal-Retzius' cells, and the arachnoid trabeculae, and these mice displayed additional defects in the lens, skeletal muscles, and heart development. All the discovered defects might be linked to aberrancies in cell adhesion and migration.
Title: Targeted deletion of RIC8A in mouse neural precursor cells interferes with the development of the brain, eyes, and muscles.
found that RIC8A plays an important role in the organisation and remodelling of actin cytoskeleton and cell-extracellular matrix association
Title: RIC8A is essential for the organisation of actin cytoskeleton and cell-matrix interaction.
Results suggest that RIC8A has an essential role in the development of mammalian nervous system by maintaining the integrity of pial basement membrane and modulating cell division
Title: Deletion of RIC8A in neural precursor cells leads to altered neurogenesis and neonatal lethality of mouse.
Data show that the localization of maternally expressed RIC8 protein is highly dynamic and is dependent on the stage of folliculogenesis, oogenesis and cleavage, and imply that it may have a regulatory function in mammalian gametogenesis.
Title: Expression Pattern and Localization Dynamics of Guanine Nucleotide Exchange Factor RIC8 during Mouse Oogenesis.
Data show that disrupting resistance to inhibitors of cholinesterase 8A (Ric-8A) expression in hematopoietic cells results in a loss of GTP-binding protein alpha subunits Galphai2, Galphai3, and Galphaq.
Title: B Lymphocyte-Specific Loss of Ric-8A Results in a Gα Protein Deficit and Severe Humoral Immunodeficiency.
The activity of RIC8A in neurons is essential for survival and its deficiency causes a severe neuromuscular phenotype.
Title: Ablation of RIC8A function in mouse neurons leads to a severe neuromuscular phenotype and postnatal death.
Ric-8 proteins support G protein levels by serving as molecular chaperones that promote Galpha subunit biosynthesis
Title: Ric-8 regulation of heterotrimeric G proteins.
These data indicate a dynamic interaction between GPR proteins, Galpha(i1) and Ric-8A, in the cell that influences subcellular localization of the three proteins and regulates complex formation.
Title: Regulation of the G-protein regulatory-Gαi signaling complex by nonreceptor guanine nucleotide exchange factors.
The results of this study revealed a novel role of Ric-8a in modulating Bergmann glia-basement membrane adhesion during foliation.
Title: Ric-8a, a guanine nucleotide exchange factor for heterotrimeric G proteins, regulates bergmann glia-basement membrane adhesion during cerebellar foliation.

Submit: New GeneRIF Correction See all GeneRIFs (18)

Variation

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Alleles

Alleles of this type are documented at Mouse Genome Informatics (MGI)

Targeted (6) 1 citation

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

AI848213 (e-PCR)
- UniSTS:179677

AI114950 (e-PCR)
- UniSTS:159713

Gene Ontology Provided by MGI

Function	Evidence Code	Pubs
enables G-protein alpha-subunit binding	IBA Inferred from Biological aspect of Ancestor more info
enables G-protein alpha-subunit binding	IDA Inferred from Direct Assay more info	PubMed
enables G-protein alpha-subunit binding	ISO Inferred from Sequence Orthology more info
enables GTPase activator activity	ISO Inferred from Sequence Orthology more info
enables guanyl-nucleotide exchange factor activity	IBA Inferred from Biological aspect of Ancestor more info
enables guanyl-nucleotide exchange factor activity	ISO Inferred from Sequence Orthology more info
enables guanyl-nucleotide exchange factor activity	ISS Inferred from Sequence or Structural Similarity more info
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables protein folding chaperone	IDA Inferred from Direct Assay more info	PubMed

Process	Evidence Code	Pubs
involved_in G protein-coupled receptor signaling pathway	IBA Inferred from Biological aspect of Ancestor more info
involved_in G protein-coupled receptor signaling pathway	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within basement membrane organization	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within cell migration involved in gastrulation	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within cell-cell adhesion involved in gastrulation	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within gastrulation	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within in utero embryonic development	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in protein folding	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within regulation of G protein-coupled receptor signaling pathway	ISO Inferred from Sequence Orthology more info
acts_upstream_of_or_within response to light stimulus	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within vasculature development	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within visual learning	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in cell cortex	IEA Inferred from Electronic Annotation more info
is_active_in cytoplasm	IBA Inferred from Biological aspect of Ancestor more info
located_in cytoplasm	ISO Inferred from Sequence Orthology more info
located_in cytoplasm	ISS Inferred from Sequence or Structural Similarity more info
located_in cytosol	ISO Inferred from Sequence Orthology more info
located_in membrane	IDA Inferred from Direct Assay more info	PubMed
is_active_in plasma membrane	IBA Inferred from Biological aspect of Ancestor more info
is_active_in plasma membrane	IDA Inferred from Direct Assay more info	PubMed
located_in plasma membrane	ISO Inferred from Sequence Orthology more info
located_in plasma membrane	ISS Inferred from Sequence or Structural Similarity more info

General protein information

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Preferred Names: chaperone Ric-8A

Names: resistance to inhibitors of cholinesterase 8 homolog; synembryn; synembryn-A

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.