PIF1 Gene Summary [Human]

This gene encodes a DNA-dependent adenosine triphosphate (ATP)-metabolizing enzyme that functions as a 5' to 3' DNA helicase. The encoded protein can resolve G-quadruplex structures and RNA-DNA hybrids at the ends of chromosomes. It also prevents telomere elongation by inhibiting the actions of telomerase. Alternative splicing and the use of alternative start codons results in multiple isoforms that are differentially localized to either the mitochondria or the nucleus. [provided by RefSeq, Nov 2013]

Details

Type
Protein Coding
Official Symbol
PIF1
Official Name
PIF1 5'-to-3' DNA helicase [Source:HGNC Symbol;Acc:HGNC:26220]
Ensembl ID
ENSG00000140451
Bio databases IDs NCBI: 80119 Ensembl: ENSG00000140451
Aliases PIF1 5'-to-3' DNA helicase
Synonyms 4631410M14, C15orf20, FLJ22692, LOC690796, PIF, PIF1 5'-to-3' DNA helicase
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 PIF1 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • single-stranded DNA dependent ATP dependent DNA helicase
  • PIF1-like helicase
  • helicase
  • ATP binding
  • enzyme
  • DNA dependent ATPase
  • magnesium ion binding
  • RNA dependent ATPase
  • telomeric DNA binding
  • DNA helicase
  • AAA domain
  • N-terminal helicase domain of the DEAD-box helicase superfamily
  • UvrD-like helicase C-terminal domain
  • P-loop containing Nucleoside Triphosphate Hydrolases

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
regulated by
regulates
role in cell
  • expression in
  • cell death
  • phosphorylation in
  • telomere-length maintenance

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
  • Mitochondria
  • mitochondrial nucleoids
  • nucleoplasm
  • telomeres

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human PIF1 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • DNA repair
  • DNA replication
  • DNA duplex unwinding
  • DNA recombination
  • telomere maintenance via telomerase
  • negative regulation of telomere maintenance via telomerase
  • negative regulation of telomerase activity
  • regulation of telomere maintenance
  • mitochondrial genome maintenance

Cellular Component

Where in the cell the gene product is active
  • replication fork
  • chromosome, telomeric region
  • mitochondrion
  • nucleoplasm

Molecular Function

What the gene product does at the molecular level
  • magnesium ion binding
  • ATPase activity
  • ATP binding
  • G-quadruplex DNA binding
  • telomeric DNA binding
  • 5'-3' DNA/RNA helicase activity
  • telomerase inhibitor activity
  • single-stranded DNA-dependent ATP-dependent DNA helicase activity
  • 5'-3' DNA helicase activity

Gene-Specific Assays for Results You Can Trust

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