GPAA1 Gene Summary [Human]

Posttranslational glycosylphosphatidylinositol (GPI) anchor attachment serves as a general mechanism for linking proteins to the cell surface membrane. The protein encoded by this gene presumably functions in GPI anchoring at the GPI transfer step. The mRNA transcript is ubiquitously expressed in both fetal and adult tissues. The anchor attachment protein 1 contains an N-terminal signal sequence, 1 cAMP- and cGMP-dependent protein kinase phosphorylation site, 1 leucine zipper pattern, 2 potential N-glycosylation sites, and 8 putative transmembrane domains. [provided by RefSeq, Jul 2008]

Details

Type
Nonsense Mediated Decay
Official Symbol
GPAA1
Official Name
glycosylphosphatidylinositol anchor attachment 1 [Source:HGNC Symbol;Acc:HGNC:4446]
Ensembl ID
ENSG00000197858
Bio databases IDs NCBI: 8733 Ensembl: ENSG00000197858
Aliases glycosylphosphatidylinositol anchor attachment 1, GPI transamidase subunit
Synonyms GAA1, glycosylphosphatidylinositol anchor attachment 1, GPI ANCHOR ATTACHMENT protein 1, GPIBD15, hGAA1, mGAA1
Species
Human, Homo sapiens
OrthologiesMouseRat

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 GPAA1 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • lipid binding
  • binding protein
  • GPI-anchor transamidase
  • Gaa1-like, GPI transamidase component
  • lumenal domain
  • transmembrane domain
  • enzyme
  • protein binding
  • cytosolic tail domain
  • loop domain
  • phosphatidylinositol binding

Pathways

Biological processes and signaling networks where the GPAA1 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
  • glycosylphosphatidylinositol biosynthesis defect type 15
  • hereditary disorder

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • Plasma Membrane
  • centrosome
  • Endoplasmic Reticulum
  • Mitochondria
  • cytosol
  • endoplasmic reticulum membrane

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human GPAA1 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • macromolecular complex assembly
  • attachment of GPI anchor to protein
  • protein retention in ER lumen

Cellular Component

Where in the cell the gene product is active
  • endoplasmic reticulum membrane
  • centrosome
  • membrane
  • mitochondrion
  • cytosol
  • endoplasmic reticulum
  • GPI-anchor transamidase complex

Molecular Function

What the gene product does at the molecular level
  • tubulin binding
  • protein binding
  • GPI-anchor transamidase activity
  • GPI anchor binding

Gene-Specific Assays for Results You Can Trust

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