PIF1 - PIF1 5'-to-3' DNA helicase Gene
Also Known as PIF; C15orf20
Species: Homo sapiens
About PIF1
This gene has 9 transcripts (splice variants) and 197 orthologues. Broad expression in lymph node (RPKM 2.4), appendix (RPKM 1.6) and 19 other tissues.
Summary
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]
PIF1 Products (4)
| mRNA | Protein | Name |
|---|---|---|
| NM_001286496.2 | NP_001273425.1 | ATP-dependent DNA helicase PIF1 isoform a |
| NM_001286497.2 | NP_001273426.1 | ATP-dependent DNA helicase PIF1 isoform b |
| NM_001286499.2 | NP_001273428.1 | ATP-dependent DNA helicase PIF1 isoform c |
| NM_025049.4 | NP_079325.2 | ATP-dependent DNA helicase PIF1 isoform a |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables 5'-3' DNA helicase activity |
IDA
IDA: Inferred from direct assay
|
16522649 | GOA |
| enables 5'-3' DNA/RNA helicase activity |
IDA
IDA: Inferred from direct assay
|
16522649 | GOA |
| enables ATP binding |
IDA
IDA: Inferred from direct assay
|
16522649 | GOA |
| enables magnesium ion binding |
IDA
IDA: Inferred from direct assay
|
16522649 | GOA |
| enables single-stranded DNA helicase activity |
IDA
IDA: Inferred from direct assay
|
16522649 | GOA |
| enables telomeric DNA binding |
IDA
IDA: Inferred from direct assay
|
16522649 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in negative regulation of telomere maintenance via telomerase |
IDA
IDA: Inferred from direct assay
|
16522649 | GOA |
| involved in protein-DNA-RNA complex disassembly |
IDA
IDA: Inferred from direct assay
|
16522649 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in chromosome, telomeric region |
IDA
IDA: Inferred from direct assay
|
16522649 | GOA |
PIF1 Protein Structure
PIF1: PIF1-like helicase (206 - 504)
Herpes_Helicase: Helicase (551 - 600)
- 0
- 100
- 200
- 300
- 400
- 500
- 600
- 641 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
ATP-dependent DNA helicase PIF1 |
|
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Dyskeratosis Congenita, Autosomal Recessive 5 |
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| Noonan Syndrome 13 |
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| Fanconi Anemia, Complementation Group J |
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| Uterine Adnexa Cancer |
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| Spinocerebellar Ataxia 36 |
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| Mitochondrial Dna Depletion Syndrome 7 |
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| Dyskeratosis Congenita |
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| Aplastic Anemia |
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| Fanconi Anemia, Complementation Group A |
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Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Canis familiaris | PIF1 | VGNC | VGNC:44530 |
| Macaca mulatta | PIF1 | VGNC | VGNC:75871 |
| Rattus norvegicus | PIF1 | RGD | RGD:1586053 |
| Mus musculus | PIF1 | MGD | MGI:2143057 |
| Felis catus | PIF1 | VGNC | VGNC:64163 |
| Bos taurus | PIF1 | VGNC | VGNC:32866 |
| Others | PIF1 | NCBI |