XIAP Gene Summary [Human]

This gene encodes a protein that belongs to a family of apoptotic suppressor proteins. Members of this family share a conserved motif termed, baculovirus IAP repeat, which is necessary for their anti-apoptotic function. This protein functions through binding to tumor necrosis factor receptor-associated factors TRAF1 and TRAF2 and inhibits apoptosis induced by menadione, a potent inducer of free radicals, and interleukin 1-beta converting enzyme. This protein also inhibits at least two members of the caspase family of cell-death proteases, caspase-3 and caspase-7. Mutations in this gene are the cause of X-linked lymphoproliferative syndrome. Alternate splicing results in multiple transcript variants. Pseudogenes of this gene are found on chromosomes 2 and 11.[provided by RefSeq, Feb 2011]

Details

Type
Protein Coding
Official Symbol
XIAP
Official Name
X-linked inhibitor of apoptosis [Source:HGNC Symbol;Acc:HGNC:592]
Ensembl ID
ENSG00000101966
Bio databases IDs NCBI: 331 Ensembl: ENSG00000101966
Aliases X-linked inhibitor of apoptosis, IAP-like protein 1
Synonyms 1110015C02RIK, Aipa, API3, APOPTOSIS INHIBITOR3, BIRC4, hIAP-3, IAP-3, ILP-1, LOC103694512, MIHA, riap3, Xiap-4, X-linked inhibitor of apoptosis, XLP2
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 XIAP often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • UBA domain-like superfamily
  • protein kinase binding
  • Bir domain
  • protease binding
  • ubiquitin protein ligase activity
  • caspase inhibitor activity
  • linker domain
  • enzyme
  • enzyme regulator activity
  • protein binding
  • identical protein binding
  • phosphorylation site
  • BIR3 domain
  • cysteine protease inhibitor activity
  • BIR1 domain
  • BIR
  • spacer domain
  • ubiquitination site
  • RING finger (Really Interesting New Gene) domain and U-box domain superfamily
  • ubiquitin-protein transferase activity
  • BIR2 domain
  • Zinc finger, C3HC4 type (RING finger)

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • cancer
  • neoplasia
  • amyotrophic lateral sclerosis
  • bleeding
  • lymphoma
  • childhood acute lymphoblastic leukemia
  • acute myeloid leukemia
  • experimental autoimmune encephalomyelitis
  • hepatitis
  • congestive heart failure
regulated by
role in cell
  • proliferation
  • phosphorylation in
  • binding in
  • formation
  • formation in
  • apoptosis
  • expression in
  • activation in
  • growth
  • accumulation in

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
  • perinuclear region
  • Nucleus
  • Plasma Membrane
  • cytoplasmic aggregates
  • cytosol
  • nucleoplasm
  • membrane rafts
  • cytosolic fraction

Gene Ontology Annotations

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

Biological Process

Functions and activities the gene product is involved in
  • positive regulation of I-kappaB kinase/NF-kappaB cascade
  • regulation of apoptosis involved in tissue homeostasis
  • copper ion homeostasis
  • negative regulation of cysteine-type endopeptidase activity involved in apoptotic process
  • positive regulation of protein ubiquitination
  • regulation of nucleotide-binding oligomerization domain containing signaling pathway
  • Wnt receptor signaling pathway
  • regulation of cell cycle
  • nucleotide-binding oligomerization domain containing 1 signaling pathway
  • neuron apoptotic process
  • positive regulation of type I interferon production
  • positive regulation of canonical Wnt receptor signaling pathway
  • regulation of apoptotic process
  • response to DNA damage stimulus
  • defense response to bacterium
  • regulation of cell proliferation
  • nucleotide-binding oligomerization domain containing 2 signaling pathway
  • negative regulation of tumor necrosis factor-mediated signaling pathway
  • positive regulation of JNK cascade
  • negative regulation of apoptotic process
  • regulation of innate immune response
  • regulation of inflammatory response
  • protein K63-linked ubiquitination
  • regulation of BMP signaling pathway

Cellular Component

Where in the cell the gene product is active
  • nucleus
  • cytoplasm
  • cytosol
  • nucleoplasm

Molecular Function

What the gene product does at the molecular level
  • ubiquitin-protein ligase activity
  • identical protein binding
  • endopeptidase regulator activity
  • protein binding
  • cysteine-type endopeptidase inhibitor activity
  • metal ion binding
  • cysteine-type endopeptidase inhibitor activity involved in apoptotic process

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.