Fosb Gene Summary [Mouse]

Enables DNA-binding transcription activator activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Involved in positive regulation of transcription by RNA polymerase II. Acts upstream of or within cellular response to calcium ion. Predicted to be located in cytosol and nucleoplasm. Predicted to be active in nucleus. Is expressed in several structures, including central nervous system; gut; male reproductive gland or organ; skeleton; and skin. Orthologous to human FOSB (FosB proto-oncogene, AP-1 transcription factor subunit). [provided by Alliance of Genome Resources, Jul 2025]

Details

Type
Protein Coding
Official Symbol
Fosb
Official Name
FBJ osteosarcoma oncogene B [Source:MGI Symbol;Acc:MGI:95575]
Ensembl ID
ENSMUSG00000003545
Bio databases IDs NCBI: 14282 Ensembl: ENSMUSG00000003545
Aliases FBJ osteosarcoma oncogene B
Synonyms AP-1, FBJ osteosarcoma oncogene B, FosB proto-oncogene, AP-1 transcription factor subunit, fra-2, G0S3, GOS3, GOSB
Species
Mouse, Mus musculus
OrthologiesHumanRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in mouse Fosb often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • RNA polymerase II transcription regulatory region sequence-specific binding transcriptional activator activity
  • RNA polymerase II transcription factor activity, sequence-specific DNA binding
  • transcription regulator
  • nucleic acid binding
  • double-stranded DNA binding
  • transcription activation domain
  • protein binding
  • sequence-specific DNA binding
  • bZIP
  • transcription factor activity
  • basic region leucin zipper
  • DNA binding

Pathways

Biological processes and signaling networks where the Fosb gene in mouse plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • atherosclerosis
  • breast cancer
  • hepatocellular carcinoma
  • epithelial cancer
  • non-small cell lung cancer
  • cervical cancer
  • cognitive impairment
  • lung adenocarcinoma
  • small cell lung cancer
  • adenoma formation
regulated by
  • tetradecanoylphorbol acetate
  • lipopolysaccharide
  • dexamethasone
  • cyclosporin A
  • IFNG
  • morphine
  • BCR (complex)
  • NRTN
  • GNRH2
  • levodopa
regulates
  • MMP9
  • reporter gene
  • synthetic promoter
  • PPARG
  • Ap1
  • DNA promoter
  • DNA endogenous promoter
  • cyclin D
  • MMP13
  • CDK5
role in cell
  • activation in
  • proliferation
  • apoptosis
  • expression in
  • growth
  • differentiation
  • quantity
  • motility
  • transformation
  • radioresistance

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Nucleus
  • nuclear fraction
  • intracellular membrane-bounded organelle
  • cytosol
  • nucleoplasm
  • chromatin

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the mouse Fosb gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • response to progesterone stimulus
  • female pregnancy
  • transcription from RNA polymerase II promoter
  • response to cAMP
  • response to morphine
  • response to xenobiotic stimulus
  • positive regulation of transcription from RNA polymerase II promoter
  • regulation of transcription from RNA polymerase II promoter
  • response to mechanical stimulus
  • negative regulation of transcription from RNA polymerase II promoter
  • response to ethanol
  • response to corticosterone stimulus
  • behavioral response to cocaine
  • cellular response to calcium ion
  • response to amphetamine
  • cellular response to hormone stimulus

Cellular Component

Where in the cell the gene product is active
  • nucleus
  • intracellular membrane-bounded organelle
  • cytosol
  • chromatin
  • nucleoplasm

Molecular Function

What the gene product does at the molecular level
  • DNA binding
  • protein binding
  • RNA polymerase II core promoter proximal region sequence-specific DNA binding
  • RNA polymerase II transcription regulatory region sequence-specific DNA binding transcription factor activity involved in positive regulation of transcription
  • sequence-specific DNA binding RNA polymerase II transcription factor activity

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.