Cannabis Compound Database: Showing Protein Polyribonucleotide nucleotidyltransferase 1, mitochondrial (CDBP01210)

Identification Biological properties Gene properties Protein properties External links References XML Show 5 compounds

Identification

HMDB Protein ID

CDBP01210

Secondary Accession Numbers

Not Available

Name

Polyribonucleotide nucleotidyltransferase 1, mitochondrial

Description

Not Available

Synonyms

3'-5' RNA exonuclease OLD35
PNPase 1
PNPase old-35
Polynucleotide phosphorylase 1
Polynucleotide phosphorylase-like protein

Gene Name

PNPT1

Protein Type

Enzyme

Biological Properties

General Function

Involved in 3'-5'-exoribonuclease activity

Specific Function

RNA-binding protein implicated in numerous RNA metabolic processes. Hydrolyzes single-stranded polyribonucleotides processively in the 3'-to-5' direction. Mitochondrial intermembrane factor with RNA-processing exoribonulease activity. Component of the mitochondrial degradosome (mtEXO) complex, that degrades 3' overhang double-stranded RNA with a 3'-to-5' directionality in an ATP-dependent manner. Required for correct processing and polyadenylation of mitochondrial mRNAs. Plays a role as a cytoplasmic RNA import factor that mediates the translocation of small RNA components, like the 5S RNA, the RNA subunit of ribonuclease P and the mitochondrial RNA-processing (MRP) RNA, into the mitochondrial matrix. Plays a role in mitochondrial morphogenesis and respiration; regulates the expression of the electron transport chain (ETC) components at the mRNA and protein levels. In the cytoplasm, shows a 3'-to-5' exoribonuclease mediating mRNA degradation activity; degrades c-myc mRNA upon treatment with IFNB1/IFN-beta, resulting in a growth arrest in melanoma cells. Regulates the stability of specific mature miRNAs in melanoma cells; specifically and selectively degrades miR-221, preferentially. Plays also a role in RNA cell surveillance by cleaning up oxidized RNAs. Binds to the RNA subunit of ribonuclease P, MRP RNA and miR-221 microRNA.

GO Classification

Biological Process
nuclear polyadenylation-dependent mRNA catabolic process
positive regulation of miRNA catabolic process
positive regulation of mitochondrial RNA catabolic process
positive regulation of mRNA catabolic process
regulation of cellular senescence
rRNA import into mitochondrion
regulation of cellular respiration
protein homotrimerization
cellular response to oxidative stress
mitochondrion morphogenesis
negative regulation of growth
cellular response to interferon-beta
mitochondrial mRNA catabolic process
mitochondrial mRNA polyadenylation
mitochondrial RNA 3'-end processing
mitochondrial RNA 5'-end processing
mitotic cell cycle arrest
Cellular Component
plasma membrane
mitochondrial degradosome
mitochondrial intermembrane space
Component
mitochondrion
organelle
membrane-bounded organelle
intracellular membrane-bounded organelle
Function
hydrolase activity, acting on ester bonds
binding
catalytic activity
hydrolase activity
transferase activity
transferase activity, transferring phosphorus-containing groups
nucleotidyltransferase activity
polyribonucleotide nucleotidyltransferase activity
exonuclease activity
3'-5' exonuclease activity
3'-5'-exoribonuclease activity
nucleic acid binding
nuclease activity
rna binding
Molecular Function
poly(G) RNA binding
poly(U) RNA binding
polyribonucleotide nucleotidyltransferase activity
3'-5'-exoribonuclease activity
miRNA binding
Process
rna metabolic process
metabolic process
macromolecule metabolic process
cellular macromolecule metabolic process
rna processing
rna catabolic process
mrna catabolic process

Cellular Location

Mitochondrion

Pathways

Name	SMPDB/Pathwhiz	KEGG
Pyrimidine Metabolism
RNA degradation	Not Available

Gene Properties

Chromosome Location

Locus

2p15

SNPs

PNPT1

Gene Sequence

>2352 bp
ATGGCGGCCTGCAGGTACTGCTGCTCGTGCCTCCGGCTCCGGCCCCTGAGCGATGGTCCT
TTCCTTCTGCCACGGCGGGATCGGGCACTCACCCAGTTGCAAGTGCGAGCACTATGGAGT
AGCGCAGGGTCTCGAGCTGTGGCCGTGGACTTAGGCAACAGGAAATTAGAAATATCTTCT
GGAAAGCTGGCCAGATTTGCAGATGGCTCTGCTGTAGTACAGTCAGGTGACACTGCAGTA
ATGGTCACAGCGGTCAGTAAAACAAAACCTTCCCCTTCCCAGTTTATGCCTTTGGTGGTT
GACTACAGACAAAAAGCTGCTGCAGCAGGTAGAATTCCCACAAACTATCTGAGAAGAGAG
ATTGGTACTTCTGATAAAGAAATTCTAACAAGTCGAATAATAGATCGTTCAATTAGACCG
CTCTTTCCAGCTGGCTACTTCTATGATACACAGGTTCTGTGTAATCTGTTAGCAGTAGAT
GGTGTAAATGAGCCTGATGTCCTAGCAATTAATGGCGCTTCCGTAGCCCTCTCATTATCA
GATATTCCTTGGAATGGACCTGTTGGGGCAGTACGAATAGGAATAATTGATGGAGAATAT
GTTGTTAACCCAACAAGAAAAGAAATGTCTTCTAGTACTTTAAATTTAGTGGTTGCTGGA
GCACCTAAAAGTCAGATTGTCATGTTGGAAGCCTCTGCAGAGAACATTTTACAGCAGGAC
TTTTGCCATGCTATCAAAGTGGGAGTGAAATATACCCAACAAATAATTCAGGGCATTCAG
CAGTTGGTAAAAGAAACTGGTGTTACCAAGAGGACACCTCAGAAGTTATTTACCCCTTCG
CCAGAGATTGTGAAATATACTCATAAACTTGCTATGGAGAGACTCTATGCAGTTTTTACA
GATTACGAGCATGACAAAGTTTCCAGAGATGAAGCTGTTAACAAAATAAGATTAGATACG
GAGGAACAACTAAAAGAAAAATTTCCAGAAGCCGATCCATATGAAATAATAGAATCCTTC
AATGTTGTTGCAAAGGAAGTTTTTAGAAGTATTGTTTTGAATGAATACAAAAGGTGCGAT
GGTCGGGATTTGACTTCACTTAGGAATGTAAGTTGTGAGGTAGATATGTTTAAAACCCTT
CATGGATCAGCATTATTTCAAAGAGGACAAACACAGGTGCTTTGTACCGTTACATTTGAT
TCATTAGAATCTGGTATTAAGTCAGATCAAGTTATAACAGCTATAAATGGGATAAAAGAT
AAAAATTTCATGCTGCACTACGAGTTTCCTCCTTATGCAACTAATGAAATTGGCAAAGTC
ACTGGTTTAAATAGAAGAGAACTTGGGCATGGTGCTCTTGCTGAGAAAGCTTTGTATCCT
GTTATTCCCCGAGATTTTCCTTTCACCATAAGAGTTACATCTGAAGTCCTAGAGTCAAAT
GGGTCATCTTCTATGGCATCTGCATGTGGCGGAAGTTTAGCATTAATGGATTCAGGGGTT
CCAATTTCATCTGCTGTTGCAGGCGTAGCAATAGGATTGGTCACCAAAACCGATCCTGAG
AAGGGTGAAATAGAAGATTATCGTTTGCTGACAGATATTTTGGGAATTGAAGATTACAAT
GGTGACATGGACTTCAAAATAGCTGGCACTAATAAAGGAATAACTGCATTACAGGCTGAT
ATTAAATTACCTGGAATACCAATAAAAATTGTGATGGAGGCTATTCAACAAGCTTCAGTG
GCAAAAAAGGAGATATTACAGATCATGAACAAAACTATTTCAAAACCTCGAGCATCTAGA
AAAGAAAATGGACCTGTTGTAGAAACTGTTCAGGTTCCATTATCAAAACGAGCAAAATTT
GTTGGACCTGGTGGCTATAACTTAAAAAAACTTCAGGCTGAAACAGGTGTAACTATTAGT
CAGGTGGATGAAGAAACGTTTTCTGTATTTGCACCAACACCCAGTGCTATGCATGAGGCA
AGAGACTTCATTACTGAAATCTGCAAGGATGATCAGGAGCAGCAATTAGAATTTGGAGCA
GTATATACCGCCACAATAACTGAAATCAGAGATACTGGTGTAATGGTAAAATTATATCCA
AATATGACTGCGGTACTGCTTCATAACACACAACTTGATCAACGAAAGATTAAACATCCT
ACTGCCCTAGGATTAGAAGTTGGCCAAGAAATTCAGGTGAAATACTTTGGACGTGACCCA
GCCGATGGAAGAATGAGGCTTTCTCGAAAAGTGCTTCAGTCGCCAGCTACAACCGTGGTC
AGAACTTTGAATGACAGAAGTAGTATTGTAATGGGAGAACCTATTTCACAGTCATCATCT
AATTCTCAGTGA

Protein Properties

Number of Residues

783

Molecular Weight

85949.84

Theoretical pI

7.769

Pfam Domain Function

S1 (PF00575 )
KH_1 (PF00013 )
PNPase (PF03726 )
RNase_PH (PF01138 )
RNase_PH_C (PF03725 )

Signals

Not Available

Transmembrane Regions

Not Available

Protein Sequence

>Polyribonucleotide nucleotidyltransferase 1, mitochondrial
MAACRYCCSCLRLRPLSDGPFLLPRRDRALTQLQVRALWSSAGSRAVAVDLGNRKLEISS
GKLARFADGSAVVQSGDTAVMVTAVSKTKPSPSQFMPLVVDYRQKAAAAGRIPTNYLRRE
IGTSDKEILTSRIIDRSIRPLFPAGYFYDTQVLCNLLAVDGVNEPDVLAINGASVALSLS
DIPWNGPVGAVRIGIIDGEYVVNPTRKEMSSSTLNLVVAGAPKSQIVMLEASAENILQQD
FCHAIKVGVKYTQQIIQGIQQLVKETGVTKRTPQKLFTPSPEIVKYTHKLAMERLYAVFT
DYEHDKVSRDEAVNKIRLDTEEQLKEKFPEADPYEIIESFNVVAKEVFRSIVLNEYKRCD
GRDLTSLRNVSCEVDMFKTLHGSALFQRGQTQVLCTVTFDSLESGIKSDQVITAINGIKD
KNFMLHYEFPPYATNEIGKVTGLNRRELGHGALAEKALYPVIPRDFPFTIRVTSEVLESN
GSSSMASACGGSLALMDSGVPISSAVAGVAIGLVTKTDPEKGEIEDYRLLTDILGIEDYN
GDMDFKIAGTNKGITALQADIKLPGIPIKIVMEAIQQASVAKKEILQIMNKTISKPRASR
KENGPVVETVQVPLSKRAKFVGPGGYNLKKLQAETGVTISQVDEETFSVFAPTPSAMHEA
RDFITEICKDDQEQQLEFGAVYTATITEIRDTGVMVKLYPNMTAVLLHNTQLDQRKIKHP
TALGLEVGQEIQVKYFGRDPADGRMRLSRKVLQSPATTVVRTLNDRSSIVMGEPISQSSS
NSQ

External Links

GenBank ID Protein

62988884

UniProtKB/Swiss-Prot ID

Q8TCS8

UniProtKB/Swiss-Prot Entry Name

PNPT1_HUMAN

PDB IDs