Sar1b secretion associated, Ras related GTPase 1B [Rattus norvegicus (Norway rat)] - Gene

Summary

Official Symbol: Sar1bprovided by RGD
Official Full Name: secretion associated, Ras related GTPase 1Bprovided by RGD
Primary source: RGD:1305590
See related: EnsemblRapid:ENSRNOG00000004820 AllianceGenome:RGD:1305590
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
Also known as: Sara2; SARA1B
Summary: Predicted to enable G protein activity and amino acid sensor activity. Predicted to be involved in several processes, including COPII-coated vesicle budding; cellular response to leucine starvation; and lipoprotein transport. Predicted to be located in cytosol. Predicted to be part of COPII vesicle coat. Predicted to be active in endoplasmic reticulum exit site and lysosomal membrane. 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, Dec 2024]
Expression: Biased expression in Muscle (RPKM 2265.6), Liver (RPKM 919.7) and 7 other tissues See more
Orthologs: human mouse all
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Genomic context

Location:: 10q22

Exon count:: 7

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCr8 (GCF_036323735.1)	10	NC_086028.1 (36525365..36555009)
RS_2023_06	previous assembly	mRatBN7.2 (GCF_015227675.2)	10	NC_051345.1 (36024415..36054069)
106	previous assembly	Rnor_6.0 (GCF_000001895.5)	10	NC_005109.4 (37215989..37245603)

Chromosome 10 - NC_086028.1 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: 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?

Sar1 recruitment to the endoplasmic reticulum-membrane is sensitive to H89-sensitive kinase activation, indicating the first step in transport vesicle formation occurs under kinase regulation
Title: Sar1 translocation onto the ER-membrane for vesicle budding has different pathways for promotion and suppression of ER-to-Golgi transport mediated through H89-sensitive kinase and ER-resident G protein.
Phosphorylation of Sar1b protein releases liver fatty acid-binding protein from multiprotein complex in intestinal cytosol enabling it to bind to endoplasmic reticulum (ER) and bud the pre-chylomicron transport vesicle.
Title: Phosphorylation of Sar1b protein releases liver fatty acid-binding protein from multiprotein complex in intestinal cytosol enabling it to bind to endoplasmic reticulum (ER) and bud the pre-chylomicron transport vesicle.
Sar1 translocation onto the endoplasmic reticulum was modulated by endoplasmic reticulum-resident G(i2)
Title: ER-resident Gi2 protein controls sar1 translocation onto the ER during budding of transport vesicles.

Submit: New GeneRIF Correction

General gene information

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Gene Ontology Provided by RGD

Function	Evidence Code	Pubs
enables G protein activity	ISO Inferred from Sequence Orthology more info
enables G protein activity	ISS Inferred from Sequence or Structural Similarity more info
enables GTP binding	IEA Inferred from Electronic Annotation more info
enables GTPase activity	IBA Inferred from Biological aspect of Ancestor more info
enables GTPase activity	IEA Inferred from Electronic Annotation more info
enables amino acid sensor activity	ISO Inferred from Sequence Orthology more info
enables metal ion binding	IEA Inferred from Electronic Annotation more info

Process	Evidence Code	Pubs
involved_in COPII vesicle coating	ISO Inferred from Sequence Orthology more info
involved_in COPII vesicle coating	ISS Inferred from Sequence or Structural Similarity more info
involved_in COPII-coated vesicle cargo loading	ISO Inferred from Sequence Orthology more info
involved_in COPII-coated vesicle cargo loading	ISS Inferred from Sequence or Structural Similarity more info
involved_in biological_process	ND No biological Data available more info
involved_in cellular response to leucine starvation	ISO Inferred from Sequence Orthology more info
involved_in endoplasmic reticulum to Golgi vesicle-mediated transport	IBA Inferred from Biological aspect of Ancestor more info
involved_in endoplasmic reticulum to Golgi vesicle-mediated transport	ISO Inferred from Sequence Orthology more info
involved_in endoplasmic reticulum to Golgi vesicle-mediated transport	ISS Inferred from Sequence or Structural Similarity more info
involved_in intracellular protein transport	IEA Inferred from Electronic Annotation more info
involved_in lipid export from cell	ISO Inferred from Sequence Orthology more info
involved_in lipid homeostasis	ISO Inferred from Sequence Orthology more info
involved_in lipid homeostasis	ISS Inferred from Sequence or Structural Similarity more info
involved_in lipoprotein transport	ISO Inferred from Sequence Orthology more info
involved_in lipoprotein transport	ISS Inferred from Sequence or Structural Similarity more info
involved_in membrane organization	IBA Inferred from Biological aspect of Ancestor more info
involved_in negative regulation of TORC1 signaling	ISO Inferred from Sequence Orthology more info
involved_in regulation of COPII vesicle coating	IBA Inferred from Biological aspect of Ancestor more info
involved_in regulation of TORC1 signaling	ISO Inferred from Sequence Orthology more info
involved_in regulation of lipid transport	ISO Inferred from Sequence Orthology more info
involved_in regulation of lipid transport	ISS Inferred from Sequence or Structural Similarity more info
involved_in vesicle organization	IBA Inferred from Biological aspect of Ancestor more info
involved_in 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
part_of COPII vesicle coat	ISO Inferred from Sequence Orthology more info
part_of COPII vesicle coat	ISS Inferred from Sequence or Structural Similarity more info
located_in Golgi cisterna membrane	IEA Inferred from Electronic Annotation more info
located_in cytosol	IEA Inferred from Electronic Annotation more info
located_in cytosol	ISO Inferred from Sequence Orthology more info
is_active_in endoplasmic reticulum exit site	IBA Inferred from Biological aspect of Ancestor more info
is_active_in endoplasmic reticulum exit site	ISO Inferred from Sequence Orthology more info
is_active_in endoplasmic reticulum exit site	ISS Inferred from Sequence or Structural Similarity more info
located_in endoplasmic reticulum membrane	IEA Inferred from Electronic Annotation more info
located_in lysosomal membrane	IEA Inferred from Electronic Annotation more info
is_active_in lysosomal membrane	ISO Inferred from Sequence Orthology more info

General protein information

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Preferred Names: small COPII coat GTPase SAR1B

Names: GTP-binding protein SAR1b; SAR1 gene homolog B; SAR1 homolog B

NP_001009622.1

EC 3.6.5.2

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.