Sar1b secretion associated Ras related GTPase 1B [Mus musculus (house mouse)] - Gene

Summary

Official Symbol: Sar1bprovided by MGI
Official Full Name: secretion associated Ras related GTPase 1Bprovided by MGI
Primary source: MGI:MGI:1913647
See related: Ensembl:ENSMUSG00000020386 AllianceGenome:MGI:1913647
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: CMRD; Sarb; Sara2; Sara1b; 2310075M17Rik; 2900019I22Rik
Summary: Predicted to enable GTPase activity. Predicted to be involved in several processes, including endoplasmic reticulum to Golgi vesicle-mediated transport; intracellular protein transport; and regulation of intracellular transport. Predicted to act upstream of or within protein transport and vesicle-mediated transport. Predicted to be located in Golgi apparatus; endoplasmic reticulum; and membrane. Predicted to be part of COPII vesicle coat. Predicted to be active in endoplasmic reticulum exit site. Human ortholog(s) of this gene implicated in chylomicron retention disease. Orthologous to human SAR1B (secretion associated Ras related GTPase 1B). [provided by Alliance of Genome Resources, Apr 2022]
Expression: Ubiquitous expression in liver E18 (RPKM 51.6), bladder adult (RPKM 37.1) and 25 other tissues See more
Orthologs: human all
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Genomic context

Location:: 11; 11 B1.3

Exon count:: 7

Annotation release	Status	Assembly	Chr	Location
109	current	GRCm39 (GCF_000001635.27)	11	NC_000077.7 (51654490..51682780)
108.20200622	previous assembly	GRCm38.p6 (GCF_000001635.26)	11	NC_000077.6 (51763663..51791953)

Chromosome 11 - NC_000077.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: Mouse ENCODE transcriptome data
Description: RNA profiling data sets generated by the Mouse ENCODE project.
BioProject: PRJNA66167
Publication: PMID 25409824
Analysis date: n/a

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Receptor-Mediated ER Export of Lipoproteins Controls Lipid Homeostasis in Mice and Humans.
Title: Receptor-Mediated ER Export of Lipoproteins Controls Lipid Homeostasis in Mice and Humans.
Inhibition of Sar1b, the Gene Implicated in Chylomicron Retention Disease, Impairs Migration and Morphogenesis of Developing Cortical Neurons.
Title: Inhibition of Sar1b, the Gene Implicated in Chylomicron Retention Disease, Impairs Migration and Morphogenesis of Developing Cortical Neurons.
Data suggest the importance of small Sar1b GTPase (Sar1b) in organs involved in lipid transport and/or calcium trafficking such as the liver, intestine, skeletal muscle and heart.
Title: Tissue distribution and regulation of the small Sar1b GTPase in mice.

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Variation

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Alleles

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

Targeted (1)
Endonuclease-mediated (2) 1 citation

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Homology

Homologs of the Sar1b gene: The Sar1b gene is conserved in human, chimpanzee, Rhesus monkey, dog, cow, rat, chicken, zebrafish, fruit fly, mosquito, C.elegans, A.thaliana, rice, and frog.
Orthologs from Annotation Pipeline: 491 organisms have orthologs with human gene Sar1b
Orthologs

Gene Ontology Provided by MGI

Function	Evidence Code	Pubs
enables GTP binding	IEA Inferred from Electronic Annotation more info
enables GTPase activity	IBA Inferred from Biological aspect of Ancestor more info	PubMed
enables metal ion binding	IEA Inferred from Electronic Annotation more info
enables nucleotide binding	IEA Inferred from Electronic Annotation more info
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in endoplasmic reticulum to Golgi vesicle-mediated transport	IBA Inferred from Biological aspect of Ancestor more info	PubMed
involved_in intracellular protein transport	IBA Inferred from Biological aspect of Ancestor more info	PubMed
involved_in lipid homeostasis	ISO Inferred from Sequence Orthology more info
involved_in lipoprotein transport	ISO Inferred from Sequence Orthology more info
involved_in membrane organization	IBA Inferred from Biological aspect of Ancestor more info	PubMed
involved_in positive regulation of protein exit from endoplasmic reticulum	IBA Inferred from Biological aspect of Ancestor more info	PubMed
acts_upstream_of_or_within protein transport	IEA Inferred from Electronic Annotation more info
involved_in regulation of COPII vesicle coating	IBA Inferred from Biological aspect of Ancestor more info	PubMed
involved_in regulation of lipid transport	ISO Inferred from Sequence Orthology more info
involved_in vesicle organization	IBA Inferred from Biological aspect of Ancestor more info	PubMed
acts_upstream_of_or_within vesicle-mediated transport	IEA Inferred from Electronic Annotation more info

Component	Evidence Code	Pubs
part_of COPII vesicle coat	IBA Inferred from Biological aspect of Ancestor more info	PubMed
located_in Golgi apparatus	IEA Inferred from Electronic Annotation more info
located_in endoplasmic reticulum	IEA Inferred from Electronic Annotation more info
is_active_in endoplasmic reticulum exit site	IBA Inferred from Biological aspect of Ancestor more info	PubMed
located_in membrane	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: GTP-binding protein SAR1b

Names: SAR1 gene homolog B; SAR1a gene homolog 2; SAR1b gene homolog

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.