Identification
HMDB Protein ID CDBP01204
Secondary Accession Numbers Not Available
Name Bifunctional polynucleotide phosphatase/kinase
Description Not Available
Synonyms
  1. 2'(3')-polynucleotidase
  2. DNA 5'-kinase/3'-phosphatase
  3. Polynucleotide 3'-phosphatase
  4. Polynucleotide 5'-hydroxyl-kinase
  5. Polynucleotide kinase-3'-phosphatase
Gene Name PNKP
Protein Type Enzyme
Biological Properties
General Function Involved in ATP binding
Specific Function Plays a key role in the repair of DNA damage, functioning as part of both the non-homologous end-joining (NHEJ) and base excision repair (BER) pathways. Through its two catalytic activities, PNK ensures that DNA termini are compatible with extension and ligation by either removing 3'-phosphates from, or by phosphorylating 5'-hydroxyl groups on, the ribose sugar of the DNA backbone.
GO Classification
Biological Process
response to oxidative stress
nucleotide-excision repair, DNA damage removal
DNA-dependent DNA replication
response to radiation
DNA damage response, detection of DNA damage
Cellular Component
nucleolus
Molecular Function
endonuclease activity
ATP binding
double-stranded DNA binding
ATP-dependent polydeoxyribonucleotide 5'-hydroxyl-kinase activity
polynucleotide 3'-phosphatase activity
damaged DNA binding
nucleotide kinase activity
Cellular Location
  1. Nucleus
Pathways
Gene Properties
Chromosome Location 19
Locus 19q13.3-q13.4
SNPs PNKP
Gene Sequence
>1566 bp
ATGGGCGAGGTGGAGGCCCCGGGCCGCTTGTGGCTCGAGAGCCCCCCTGGGGGAGCGCCC
CCCATCTTCCTGCCCTCGGACGGGCAAGCCCTGGTCCTGGGCAGGGGACCCCTGACCCAG
GTTACGGACCGGAAGTGCTCCAGAACTCAAGTGGAGCTGGTCGCAGATCCTGAGACCCGG
ACAGTGGCAGTGAAACAGCTGGGAGTTAACCCCTCAACTACCGGGACCCAGGAGTTGAAG
CCGGGGTTGGAGGGCTCTCTGGGGGTGGGGGACACACTGTATTTGGTCAATGGCCTCCAC
CCACTGACCCTGCGCTGGGAAGAGACCCGCACACCAGAATCCCAGCCAGATACTCCGCCT
GGCACCCCTCTGGTGTCCCAAGATGAGAAGAGAGATGCTGAGCTGCCGAAGAAGCGTATG
CGGAAGTCAAACCCCGGCTGGGAGAACTTGGAGAAGTTGCTAGTGTTCACCGCAGCTGGG
GTGAAACCCCAGGGCAAGGTGGCTGGCTTTGATCTGGACGGGACGCTCATCACCACACGC
TCTGGGAAGGTCTTTCCCACTGGCCCCAGTGACTGGAGGATCTTGTACCCAGAGATTCCC
CGTAAGCTCCGAGAGCTGGAAGCCGAGGGCTACAAGCTGGTGATCTTCACCAACCAGATG
AGCATCGGGCGCGGGAAGCTGCCAGCCGAGGAGTTCAAGGCCAAGGTGGAGGCTGTGGTG
GAGAAGCTGGGGGTCCCCTTCCAGGTGCTGGTGGCCACGCACGCAGGCTTGTACCGGAAG
CCGGTGACGGGCATGTGGGACCATCTGCAGGAGCAGGCCAACGACGGCACGCCCATATCC
ATCGGGGACAGCATCTTTGTGGGAGACGCAGCCGGACGCCCGGCCAACTGGGCCCCGGGG
CGGAAGAAGAAAGACTTCTCCTGCGCCGATCGCCTGTTTGCCCTCAACCTTGGCCTGCCC
TTCGCCACGCCTGAGGAGTTCTTTCTCAAGTGGCCAGCAGCCGGCTTCGAGCTCCCAGCC
TTTGATCCGAGGACTGTCTCCCGCTCAGGGCCTCTCTGCCTCCCCGAGTCCAGGGCCCTC
CTGAGCGCCAGCCCGGAGGTGGTTGTCGCAGTGGGATTCCCTGGGGCCGGGAAGTCCACC
TTTCTCAAGAAGCACCTCGTGTCGGCCGGATATGTCCACGTGAACAGGGACACGCTAGGC
TCCTGGCAGCGCTGTGTGACCACGTGTGAGACAGCCCTGAAGCAAGGGAAACGGGTCGCC
ATCGACAACACAAACCCAGACGCCGCGAGCCGCGCCAGGTACGTCCAGTGTGCCCGAGCC
GCGGGCGTCCCCTGCCGCTGCTTCCTCTTCACCGCCACTCTGGAGCAGGCGCGCCACAAC
AACCGGTTTCGAGAGATGACGGACTCCTCTCATATCCCCGTGTCAGACATGGTCATGTAT
GGCTACAGGAAGCAGTTCGAGGCCCCAACGCTGGCTGAAGGCTTCTCTGCCATCCTGGAG
ATCCCGTTCCGGCTATGGGTGGAGCCGAGGCTGGGGCGGCTGTACTGCCAGTTCTCCGAG
GGCTGA
Protein Properties
Number of Residues 521
Molecular Weight 57075.9
Theoretical pI 8.46
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Bifunctional polynucleotide phosphatase/kinase
MGEVEAPGRLWLESPPGGAPPIFLPSDGQALVLGRGPLTQVTDRKCSRTQVELVADPETR
TVAVKQLGVNPSTTGTQELKPGLEGSLGVGDTLYLVNGLHPLTLRWEETRTPESQPDTPP
GTPLVSQDEKRDAELPKKRMRKSNPGWENLEKLLVFTAAGVKPQGKVAGFDLDGTLITTR
SGKVFPTGPSDWRILYPEIPRKLRELEAEGYKLVIFTNQMSIGRGKLPAEEFKAKVEAVV
EKLGVPFQVLVATHAGLYRKPVTGMWDHLQEQANDGTPISIGDSIFVGDAAGRPANWAPG
RKKKDFSCADRLFALNLGLPFATPEEFFLKWPAAGFELPAFDPRTVSRSGPLCLPESRAL
LSASPEVVVAVGFPGAGKSTFLKKHLVSAGYVHVNRDTLGSWQRCVTTCETALKQGKRVA
IDNTNPDAASRARYVQCARAAGVPCRCFLFTATLEQARHNNRFREMTDSSHIPVSDMVMY
GYRKQFEAPTLAEGFSAILEIPFRLWVEPRLGRLYCQFSEG
GenBank ID Protein 31543419
UniProtKB/Swiss-Prot ID Q96T60
UniProtKB/Swiss-Prot Entry Name PNKP_HUMAN
PDB IDs
GenBank Gene ID NM_007254.3
GeneCard ID PNKP
GenAtlas ID PNKP
HGNC ID HGNC:9154
References
General References Not Available