Apoa4 apolipoprotein A4 [Rattus norvegicus (Norway rat)] - Gene

Summary

Official Symbol: Apoa4provided by RGD
Official Full Name: apolipoprotein A4provided by RGD
Primary source: RGD:2132
See related: EnsemblRapid:ENSRNOG00000055909 AllianceGenome:RGD:2132
Gene type: protein coding
RefSeq status: PROVISIONAL
Organism: Rattus norvegicus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Rattus
Also known as: apoAIV; Apo-AIV; ApoA-IV
Summary: Predicted to enable several functions, including cation binding activity; cholesterol transfer activity; and phosphatidylcholine-sterol O-acyltransferase activator activity. Involved in peripheral nervous system axon regeneration and response to triglyceride. Part of chylomicron. Is active in synapse. Biomarker of major depressive disorder. Human ortholog(s) of this gene implicated in Alzheimer's disease; colitis; myocardial infarction; and ulcerative colitis. Orthologous to human APOA4 (apolipoprotein A4). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Restricted expression toward (RPKM 2679.3) See more
Orthologs: human mouse all
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Genomic context

Location:: 8q22

Exon count:: 3

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCr8 (GCF_036323735.1)	8	NC_086026.1 (55435779..55438160)
RS_2023_06	previous assembly	mRatBN7.2 (GCF_015227675.2)	8	NC_051343.1 (46539083..46541464)
106	previous assembly	Rnor_6.0 (GCF_000001895.5)	8	NC_005107.4 (50536983..50539371)

Chromosome 8 - NC_086026.1 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

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Estradiol Enhances Anorectic Effect of Apolipoprotein A-IV through ERalpha-PI3K Pathway in the Nucleus Tractus Solitarius.
Title: Estradiol Enhances Anorectic Effect of Apolipoprotein A-IV through ERα-PI3K Pathway in the Nucleus Tractus Solitarius.
demonstrate a critical role of the PI3K/Akt pathway in apoA-IV's anorectic action in lean rats and suggest a defective PI3K pathway in the ventromedial hypothalamus is responsible for the impaired apoA-IV's anorectic action in the diet-induced obese animals
Title: Apolipoprotein A-IV exerts its anorectic action through a PI3K/Akt signaling pathway in the hypothalamus.
These results suggest that the elevated mRNA expression levels of Rbp2 and Apoa4 in the rats with SB contribute to the effective esterification and transport of vitamin A.
Title: Massive bowel resection upregulates the intestinal mRNA expression levels of cellular retinol-binding protein II and apolipoprotein A-IV and alters the intestinal vitamin A status in rats.
Compared to the rats in the control group, the rats in the HF group had the expression levels of 12 genes with significant changes, Agrp, Ghrl, and Nr3c1, Apoa4, Cntf, Ghr, IL-1beta, Ins1, Lepr,Sort, Adcyap1r1 and Adrb1.
Title: Green tea polyphenols reduce body weight in rats by modulating obesity-related genes.
Nuclear ERalpha is the primary mediator of E2's action on apo A-IV gene expression.
Title: Estradiol stimulates apolipoprotein A-IV gene expression in the nucleus of the solitary tract through estrogen receptor-α.
Data suggest that apoAIV in NTS (nucleus of the solitary tract) or/and peripheral Cck (cholecystokinin) require vagal Cck1r (cholecystokinin receptor 1) signaling to elicit satiation; high-fat diet reduces satiating capacity of these signals.
Title: Intraperitoneal CCK and fourth-intraventricular Apo AIV require both peripheral and NTS CCK1R to reduce food intake in male rats.
Octreotide intervention down-regulated expression of apoB mRNA and apoB48 protein, as well as MTP mRNA and proteins. ApoAIV mRNA was not significantly different between obese and octreotide-treated rats.
Title: Octreotide promotes weight loss via suppression of intestinal MTP and apoB48 expression in diet-induced obesity rats.
peripheral apo AIV requires an intact CCK system and vagal afferents to activate neurons in the hindbrain to reduce food intake
Title: Apolipoprotein AIV requires cholecystokinin and vagal nerves to suppress food intake.
Intraperitoneally injected Apoa4 inhibited food intake and levels were measured in intestinal lymph.
Title: Effect of intraperitoneal and intravenous administration of cholecystokinin-8 and apolipoprotein AIV on intestinal lymphatic CCK-8 and apo AIV concentration.
that apo A-IV, produced by neuronal cells iin brain, may exert its anorectic action by interacting with catabolic regulatory neuropeptides.
Title: Characterization of apolipoprotein A-IV in brain areas involved in energy homeostasis.

Submit: New GeneRIF Correction See all GeneRIFs (14)

General gene information

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Markers

RH94460 (e-PCR)
- UniSTS:119708

RH128325 (e-PCR)
- UniSTS:211633

Gene Ontology Provided by RGD

Function	Evidence Code	Pubs
enables antioxidant activity	IEA Inferred from Electronic Annotation more info
enables antioxidant activity	ISO Inferred from Sequence Orthology more info
enables cholesterol transfer activity	IBA Inferred from Biological aspect of Ancestor more info
enables cholesterol transfer activity	IEA Inferred from Electronic Annotation more info
enables cholesterol transfer activity	ISO Inferred from Sequence Orthology more info
enables copper ion binding	IEA Inferred from Electronic Annotation more info
enables copper ion binding	ISO Inferred from Sequence Orthology more info
enables identical protein binding	ISO Inferred from Sequence Orthology more info
enables lipid binding	ISO Inferred from Sequence Orthology more info
enables phosphatidylcholine binding	IEA Inferred from Electronic Annotation more info
enables phosphatidylcholine binding	ISO Inferred from Sequence Orthology more info
enables phosphatidylcholine-sterol O-acyltransferase activator activity	IBA Inferred from Biological aspect of Ancestor more info
enables phosphatidylcholine-sterol O-acyltransferase activator activity	IEA Inferred from Electronic Annotation more info
enables phosphatidylcholine-sterol O-acyltransferase activator activity	ISO Inferred from Sequence Orthology more info
enables phospholipid binding	IBA Inferred from Biological aspect of Ancestor more info
enables protein homodimerization activity	IEA Inferred from Electronic Annotation more info
enables protein homodimerization activity	ISO Inferred from Sequence Orthology more info

Process	Evidence Code	Pubs
involved_in acylglycerol homeostasis	IBA Inferred from Biological aspect of Ancestor more info
involved_in cholesterol efflux	IBA Inferred from Biological aspect of Ancestor more info
involved_in cholesterol efflux	IEA Inferred from Electronic Annotation more info
involved_in cholesterol efflux	ISO Inferred from Sequence Orthology more info
involved_in cholesterol homeostasis	IEA Inferred from Electronic Annotation more info
involved_in cholesterol homeostasis	ISO Inferred from Sequence Orthology more info
involved_in cholesterol metabolic process	IBA Inferred from Biological aspect of Ancestor more info
involved_in cholesterol metabolic process	IEA Inferred from Electronic Annotation more info
involved_in cholesterol metabolic process	ISO Inferred from Sequence Orthology more info
involved_in high-density lipoprotein particle remodeling	IEA Inferred from Electronic Annotation more info
involved_in high-density lipoprotein particle remodeling	ISO Inferred from Sequence Orthology more info
involved_in hydrogen peroxide catabolic process	IEA Inferred from Electronic Annotation more info
involved_in hydrogen peroxide catabolic process	ISO Inferred from Sequence Orthology more info
involved_in innate immune response in mucosa	IEA Inferred from Electronic Annotation more info
involved_in innate immune response in mucosa	ISO Inferred from Sequence Orthology more info
involved_in leukocyte cell-cell adhesion	IEA Inferred from Electronic Annotation more info
involved_in leukocyte cell-cell adhesion	ISO Inferred from Sequence Orthology more info
involved_in lipid catabolic process	IEA Inferred from Electronic Annotation more info
involved_in lipid catabolic process	ISO Inferred from Sequence Orthology more info
involved_in lipid homeostasis	ISO Inferred from Sequence Orthology more info
involved_in lipid transport	ISO Inferred from Sequence Orthology more info
involved_in lipid transport	TAS Traceable Author Statement more info	PubMed
involved_in lipoprotein metabolic process	IEA Inferred from Electronic Annotation more info
involved_in negative regulation of plasma lipoprotein oxidation	IEA Inferred from Electronic Annotation more info
involved_in negative regulation of plasma lipoprotein oxidation	ISO Inferred from Sequence Orthology more info
involved_in peripheral nervous system axon regeneration	IEP Inferred from Expression Pattern more info	PubMed
involved_in phosphatidylcholine metabolic process	IEA Inferred from Electronic Annotation more info
involved_in phosphatidylcholine metabolic process	ISO Inferred from Sequence Orthology more info
involved_in phospholipid efflux	IBA Inferred from Biological aspect of Ancestor more info
involved_in phospholipid efflux	IEA Inferred from Electronic Annotation more info
involved_in phospholipid efflux	ISO Inferred from Sequence Orthology more info
involved_in positive regulation of CoA-transferase activity	ISO Inferred from Sequence Orthology more info
involved_in positive regulation of fatty acid biosynthetic process	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of fatty acid biosynthetic process	ISO Inferred from Sequence Orthology more info
involved_in positive regulation of lipoprotein lipase activity	ISO Inferred from Sequence Orthology more info
involved_in positive regulation of triglyceride catabolic process	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of triglyceride catabolic process	ISO Inferred from Sequence Orthology more info
involved_in protein-lipid complex assembly	IEA Inferred from Electronic Annotation more info
involved_in protein-lipid complex assembly	ISO Inferred from Sequence Orthology more info
involved_in regulation of cholesterol transport	IEA Inferred from Electronic Annotation more info
involved_in regulation of cholesterol transport	ISO Inferred from Sequence Orthology more info
involved_in regulation of intestinal cholesterol absorption	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within regulation of intestinal cholesterol absorption	ISO Inferred from Sequence Orthology more info
involved_in removal of superoxide radicals	IEA Inferred from Electronic Annotation more info
involved_in removal of superoxide radicals	ISO Inferred from Sequence Orthology more info
involved_in response to food	TAS Traceable Author Statement more info	PubMed
involved_in response to lipid hydroperoxide	IEA Inferred from Electronic Annotation more info
involved_in response to lipid hydroperoxide	ISO Inferred from Sequence Orthology more info
involved_in response to stilbenoid	IEA Inferred from Electronic Annotation more info
involved_in response to stilbenoid	ISO Inferred from Sequence Orthology more info
involved_in response to triglyceride	IEP Inferred from Expression Pattern more info	PubMed
involved_in reverse cholesterol transport	IEA Inferred from Electronic Annotation more info
involved_in reverse cholesterol transport	ISO Inferred from Sequence Orthology more info
involved_in very-low-density lipoprotein particle remodeling	IEA Inferred from Electronic Annotation more info
involved_in very-low-density lipoprotein particle remodeling	ISO Inferred from Sequence Orthology more info

Component	Evidence Code	Pubs
located_in cell surface	IEA Inferred from Electronic Annotation more info
located_in cell surface	ISO Inferred from Sequence Orthology more info
part_of chylomicron	IBA Inferred from Biological aspect of Ancestor more info
part_of chylomicron	IDA Inferred from Direct Assay more info	PubMed
part_of chylomicron	IEA Inferred from Electronic Annotation more info
part_of chylomicron	ISO Inferred from Sequence Orthology more info
located_in extracellular space	ISO Inferred from Sequence Orthology more info
is_active_in extracellular vesicle	IBA Inferred from Biological aspect of Ancestor more info
part_of high-density lipoprotein particle	IBA Inferred from Biological aspect of Ancestor more info
part_of high-density lipoprotein particle	IEA Inferred from Electronic Annotation more info
part_of high-density lipoprotein particle	ISO Inferred from Sequence Orthology more info
part_of low-density lipoprotein particle	IBA Inferred from Biological aspect of Ancestor more info
is_active_in synapse	EXP Inferred from Experiment more info	PubMed
is_active_in synapse	IDA Inferred from Direct Assay more info	PubMed
part_of very-low-density lipoprotein particle	IBA Inferred from Biological aspect of Ancestor more info
part_of very-low-density lipoprotein particle	IEA Inferred from Electronic Annotation more info
part_of very-low-density lipoprotein particle	ISO Inferred from Sequence Orthology more info

General protein information

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Preferred Names: apolipoprotein A-IV

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_012737.2 → NP_036869.2 apolipoprotein A-IV precursor

Status: PROVISIONAL

Source sequence(s)

JAXUCZ010000008

UniProtKB/Swiss-Prot

P02651, Q5BK92

UniProtKB/TrEMBL

A6J474

Related

ENSRNOP00000069659.2, ENSRNOT00000080658.3

Conserved Domains (1) summary

pfam01442
Location:66 → 235

Apolipoprotein; Apolipoprotein A1/A4/E domain