SAA1 Gene Summary [Human]

This gene encodes a member of the serum amyloid A family of apolipoproteins. The encoded preproprotein is proteolytically processed to generate the mature protein. This protein is a major acute phase protein that is highly expressed in response to inflammation and tissue injury. This protein also plays an important role in HDL metabolism and cholesterol homeostasis. High levels of this protein are associated with chronic inflammatory diseases including atherosclerosis, rheumatoid arthritis, Alzheimer's disease and Crohn's disease. This protein may also be a potential biomarker for certain tumors. Finally, antimicrobial activity against S. aureus and E. coli resides in the N-terminal portion of the mature protein. Alternate splicing results in multiple transcript variants that encode the same protein. A pseudogene of this gene is found on chromosome 11. [provided by RefSeq, Jul 2020]

Details

Type
Protein Coding
Official Symbol
SAA1
Official Name
serum amyloid A1 [Source:HGNC Symbol;Acc:HGNC:10513]
Ensembl ID
ENSG00000173432
Bio databases IDs NCBI: 6288 Ensembl: ENSG00000173432
Aliases serum amyloid A1
Synonyms PIG4, SAA, SAA2, SAAR, SAAR-RS, SERUM AMYLOID A, serum amyloid A1, TP53I4
Species
Human, Homo sapiens

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 human SAA1 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • G-protein-coupled receptor binding
  • Serum amyloid A protein
  • transporter

Pathways

Biological processes and signaling networks where the SAA1 gene in human 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
  • epithelial cancer
  • breast cancer
  • liver cancer
  • organismal death
  • ankylosing spondylitis
  • rheumatoid arthritis
  • lung injury
  • endometrioma
  • primary pulmonary hypertension
  • diabetic nephropathy
regulated by
role in cell
  • proliferation
  • adhesion
  • expression in
  • apoptosis
  • production in
  • activation
  • cell death
  • phosphorylation in
  • migration
  • activity

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Extracellular Space
  • cell surface
  • organelle lumens
  • cytoplasmic microtubule
  • plasma

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human SAA1 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • regulation of protein secretion
  • lymphocyte chemotaxis
  • macrophage chemotaxis
  • negative regulation of inflammatory response
  • neutrophil chemotaxis
  • positive regulation of cell adhesion
  • platelet activation
  • positive regulation of cytokine production
  • acute-phase response
  • positive regulation of interleukin-1 production
  • elevation of cytosolic calcium ion concentration

Cellular Component

Where in the cell the gene product is active
  • extracellular vesicular exosome
  • high-density lipoprotein particle
  • endocytic vesicle lumen
  • cytoplasmic microtubule
  • extracellular region

Molecular Function

What the gene product does at the molecular level
  • G-protein coupled receptor binding
  • heparin binding

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.