CPLM 1.0 - Compendium of Protein Lysine Modification
TagContent
CPLM ID CPLM-021414
UniProt Accession
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
 ATP-dependent DNA helicase PIF1 
Protein Synonyms/Alias
 PIF1/RRM3 DNA helicase-like protein 
Gene Name
 PIF1 
Gene Synonyms/Alias
 C15orf20 
Created Date
 July 27, 2013 
Organism
 Homo sapiens (Human) 
NCBI Taxa ID
 9606 
Lysine Modification
Position
Peptide
Type
References
204RLSLPSTKPQLSEEQubiquitination[1]
Reference
 [1] Refined preparation and use of anti-diglycine remnant (K-ε-GG) antibody enables routine quantification of 10,000s of ubiquitination sites in single proteomics experiments.
 Udeshi ND, Svinkina T, Mertins P, Kuhn E, Mani DR, Qiao JW, Carr SA.
 Mol Cell Proteomics. 2013 Mar;12(3):825-31. [PMID: 23266961
Functional Description
 DNA-dependent ATPase and DNA helicase inhibiting telomerase activity by unwinding DNA/RNA duplex formed by telomerase RNA and telomeric DNA in a 5' to 3' polarity. Negatively regulates telomere length and such inhibition requires its ATPase activity. Tightly cell cycle regulated and expressed in late S/G2 phase. 
Sequence Annotation
 NP_BIND 228 235 ATP (Potential).
 REGION 167 641 Hydrolyzes ATP in the presence of both
 MOD_RES 27 27 Phosphoserine.
 MOD_RES 151 151 Phosphoserine.  
Keyword
 Alternative initiation; Alternative splicing; ATP-binding; Complete proteome; DNA-binding; Helicase; Hydrolase; Mitochondrion; Nucleotide-binding; Nucleus; Phosphoprotein; Polymorphism; Reference proteome. 
Sequence Source
 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 
Protein Length
 641 AA 
Protein Sequence
MLSGIEAAAG EYEDSELRCR VAVEELSPGG QPRRRQALRT AELSLGRNER RELMLRLQAP 60
GPAGRPRCFP LRAARLFTRF AEAGRSTLRL PAHDTPGAGA VQLLLSDCPP DRLRRFLRTL 120
RLKLAAAPGP GPASARAQLL GPRPRDFVTI SPVQPEERRL RAATRVPDTT LVKRPVEPQA 180
GAEPSTEAPR WPLPVKRLSL PSTKPQLSEE QAAVLRAVLK GQSIFFTGSA GTGKSYLLKR 240
ILGSLPPTGT VATASTGVAA CHIGGTTLHA FAGIGSGQAP LAQCVALAQR PGVRQGWLNC 300
QRLVIDEISM VEADLFDKLE AVARAVRQQN KPFGGIQLII CGDFLQLPPV TKGSQPPRFC 360
FQSKSWKRCV PVTLELTKVW RQADQTFISL LQAVRLGRCS DEVTRQLQAT ASHKVGRDGI 420
VATRLCTHQD DVALTNERRL QELPGKVHRF EAMDSNPELA STLDAQCPVS QLLQLKLGAQ 480
VMLVKNLSVS RGLVNGARGV VVGFEAEGRG LPQVRFLCGV TEVIHADRWT VQATGGQLLS 540
RQQLPLQLAW AMSIHKSQGM TLDCVEISLG RVFASGQAYV ALSRARSLQG LRVLDFDPMA 600
VRCDPRVLHF YATLRRGRSL SLESPDDDEA ASDQENMDPI L 641 
Gene Ontology
 GO:0000784; C:nuclear chromosome, telomeric region; IDA:HGNC.
 GO:0005524; F:ATP binding; IDA:HGNC.
 GO:0043141; F:ATP-dependent 5'-3' DNA helicase activity; IDA:HGNC.
 GO:0033682; F:ATP-dependent 5'-3' DNA/RNA helicase activity; IDA:BHF-UCL.
 GO:0000287; F:magnesium ion binding; IDA:HGNC.
 GO:0017116; F:single-stranded DNA-dependent ATP-dependent DNA helicase activity; IDA:HGNC.
 GO:0042162; F:telomeric DNA binding; IDA:HGNC.
 GO:0051974; P:negative regulation of telomerase activity; IDA:HGNC.
 GO:0032204; P:regulation of telomere maintenance; IDA:HGNC. 
Interpro
 IPR003840; DNA_helicase.
 IPR010285; DNA_helicase_PIF1.
 IPR027417; P-loop_NTPase. 
Pfam
 PF02689; Herpes_Helicase
 PF05970; PIF1 
SMART
  
PROSITE
  
PRINTS