VPS4B Gene Summary [Human]

The protein encoded by this gene is a member of the AAA protein family (ATPases associated with diverse cellular activities), and is the homolog of the yeast Vps4 protein. In humans, two paralogs of the yeast protein have been identified. The former share a high degree of aa sequence similarity with each other, and also with yeast Vps4 and mouse Skd1 proteins. Mouse Skd1 (suppressor of K+ transport defect 1) has been shown to be a yeast Vps4 ortholog. Functional studies indicate that both human paralogs associate with the endosomal compartments, and are involved in intracellular protein trafficking, similar to Vps4 protein in yeast. The gene encoding this paralog has been mapped to chromosome 18; the gene for the other resides on chromosome 16. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
VPS4B
Official Name
vacuolar protein sorting 4 homolog B [Source:HGNC Symbol;Acc:HGNC:10895]
Ensembl ID
ENSG00000119541
Bio databases IDs NCBI: 9525 Ensembl: ENSG00000119541
Aliases vacuolar protein sorting 4 homolog B
Synonyms 8030489C12Rik, MIG1, SKD1, SKD1B, vacuolar protein sorting 4B, vacuolar protein sorting 4 homolog B, VPS4-2
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 VPS4B often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • MIT
  • Vps4 C terminal oligomerization domain
  • protein binding
  • identical protein binding
  • AAA+ lid domain
  • ATPase
  • Microtubule Interacting and Trafficking molecule domain
  • MIT (microtubule interacting and transport) domain
  • AAA domain (dynein-related subfamily)
  • ATPase family associated with various cellular activities (AAA)
  • binding protein
  • protein homodimerization
  • P-loop containing Nucleoside Triphosphate Hydrolases
  • transporter
  • ATPases associated with a variety of cellular activities

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
regulated by
role in cell
  • quantity
  • production in
  • assembly
  • formation
  • morphology
  • abnormal morphology
  • organization
  • elongation
  • trafficking
  • biogenesis

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
  • cellular membrane
  • Nucleus
  • endosomes
  • centrosome
  • Flemming body
  • cytosol
  • endosomal membrane
  • spindle pole
  • exosomes

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human VPS4B gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • membrane fission
  • vacuole organization
  • protein transport
  • protein depolymerization
  • establishment of blood-brain barrier
  • nucleus organization
  • potassium ion transport
  • non-lytic virus budding from plasma membrane
  • regulation of centrosome duplication
  • ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway
  • angiogenesis
  • plasma membrane repair
  • autophagy
  • endosomal transport
  • multivesicular body sorting pathway
  • endosome to lysosome transport via multivesicular body sorting pathway
  • canonical Wnt receptor signaling pathway
  • response to lipid
  • nuclear envelope reassembly
  • cholesterol transport
  • mitotic metaphase plate congression
  • macroautophagy
  • positive regulation of G2/M transition of mitotic cell cycle

Cellular Component

Where in the cell the gene product is active
  • spindle pole
  • plasma membrane
  • nuclear pore
  • late endosome membrane
  • nucleus
  • centrosome
  • extracellular vesicular exosome
  • endosome
  • cytoplasm
  • cytosol
  • endosome membrane
  • midbody

Molecular Function

What the gene product does at the molecular level
  • ATPase activity
  • ATP binding
  • identical protein binding
  • protein homodimerization activity
  • protein binding

Gene-Specific Assays for Results You Can Trust

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