UniProtKB - Q9PBJ8 (RNT_XYLFA)
Protein
Ribonuclease T
Gene
rnt
Organism
Xylella fastidiosa (strain 9a5c)
Status
Functioni
Trims short 3' overhangs of a variety of RNA species, leaving a one or two nucleotide 3' overhang. Responsible for the end-turnover of tRNA: specifically removes the terminal AMP residue from uncharged tRNA (tRNA-C-C-A). Also appears to be involved in tRNA biosynthesis.UniRule annotation
Cofactori
Mg2+UniRule annotationNote: Binds two Mg2+ per subunit. The active form of the enzyme binds two Mg2+ ions in its active site. The first Mg2+ forms only one salt bridge with the protein.UniRule annotation
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 27 | Magnesium 1; catalyticUniRule annotation | 1 | |
Metal bindingi | 27 | Magnesium 2; catalyticUniRule annotation | 1 | |
Metal bindingi | 29 | Magnesium 2; catalyticUniRule annotation | 1 | |
Sitei | 33 | Important for substrate binding and specificityUniRule annotation | 1 | |
Sitei | 128 | Important for substrate binding and specificityUniRule annotation | 1 | |
Sitei | 150 | Important for substrate binding and specificityUniRule annotation | 1 | |
Active sitei | 185 | Proton donor/acceptorUniRule annotation | 1 | |
Metal bindingi | 185 | Magnesium 2; catalyticUniRule annotation | 1 | |
Metal bindingi | 190 | Magnesium 2; catalyticUniRule annotation | 1 |
GO - Molecular functioni
- exoribonuclease activity, producing 5'-phosphomonoesters Source: UniProtKB-UniRule
- magnesium ion binding Source: UniProtKB-UniRule
- nucleic acid binding Source: InterPro
GO - Biological processi
- tRNA processing Source: UniProtKB-KW
Keywordsi
Molecular function | Exonuclease, Hydrolase, Nuclease |
Biological process | tRNA processing |
Ligand | Magnesium, Metal-binding |
Names & Taxonomyi
Protein namesi | Recommended name: Ribonuclease TUniRule annotation (EC:3.1.13.-UniRule annotation)Alternative name(s): Exoribonuclease TUniRule annotation Short name: RNase TUniRule annotation |
Gene namesi | Name:rntUniRule annotation Ordered Locus Names:XF_2146 |
Organismi | Xylella fastidiosa (strain 9a5c) |
Taxonomic identifieri | 160492 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Gammaproteobacteria › Xanthomonadales › Xanthomonadaceae › Xylella › |
Proteomesi |
|
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000208983 | 1 – 211 | Ribonuclease TAdd BLAST | 211 |
Interactioni
Subunit structurei
Homodimer.
UniRule annotationProtein-protein interaction databases
STRINGi | 160492.XF_2146 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 24 – 198 | ExonucleaseUniRule annotationAdd BLAST | 175 |
Sequence similaritiesi
Belongs to the RNase T family.UniRule annotation
Phylogenomic databases
eggNOGi | ENOG4105DH5 Bacteria COG0847 LUCA |
KOi | K03683 |
OMAi | CYMVNHL |
Family and domain databases
Gene3Di | 3.30.420.10, 1 hit |
HAMAPi | MF_00157 RNase_T, 1 hit |
InterProi | View protein in InterPro IPR013520 Exonuclease_RNaseT/DNA_pol3 IPR005987 RNase_T IPR012337 RNaseH-like_sf IPR036397 RNaseH_sf |
PANTHERi | PTHR30231:SF2 PTHR30231:SF2, 1 hit |
Pfami | View protein in Pfam PF00929 RNase_T, 1 hit |
SMARTi | View protein in SMART SM00479 EXOIII, 1 hit |
SUPFAMi | SSF53098 SSF53098, 1 hit |
TIGRFAMsi | TIGR01298 RNaseT, 1 hit |
i Sequence
Sequence statusi: Complete.
Q9PBJ8-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MMNQSITPPT HPPMSQRFRG YLPVVVDVET GGFNWNHHAL LEIACIPIEM
60 70 80 90 100
DDTGRLYPGE VTSTHVIPAP GTDIDPKSLE VTGIILDHPF RFAKEEKLAL
110 120 130 140 150
EHIFTPVRAT MKKYKCQRAI LVGHNAHFDL NFLNAAVTRT AYKRNPFHQF
160 170 180 190 200
SVFDTVTLAG MAYGQTVLAR AVQAAGLDWN AADAHSAVYD AEKTAHLFCT
210
ITNTWPLVVA G
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AE003849 Genomic DNA Translation: AAF84945.1 |
PIRi | F82593 |
Genome annotation databases
EnsemblBacteriai | AAF84945; AAF84945; XF_2146 |
KEGGi | xfa:XF_2146 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AE003849 Genomic DNA Translation: AAF84945.1 |
PIRi | F82593 |
3D structure databases
SMRi | Q9PBJ8 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 160492.XF_2146 |
Genome annotation databases
EnsemblBacteriai | AAF84945; AAF84945; XF_2146 |
KEGGi | xfa:XF_2146 |
Phylogenomic databases
eggNOGi | ENOG4105DH5 Bacteria COG0847 LUCA |
KOi | K03683 |
OMAi | CYMVNHL |
Family and domain databases
Gene3Di | 3.30.420.10, 1 hit |
HAMAPi | MF_00157 RNase_T, 1 hit |
InterProi | View protein in InterPro IPR013520 Exonuclease_RNaseT/DNA_pol3 IPR005987 RNase_T IPR012337 RNaseH-like_sf IPR036397 RNaseH_sf |
PANTHERi | PTHR30231:SF2 PTHR30231:SF2, 1 hit |
Pfami | View protein in Pfam PF00929 RNase_T, 1 hit |
SMARTi | View protein in SMART SM00479 EXOIII, 1 hit |
SUPFAMi | SSF53098 SSF53098, 1 hit |
TIGRFAMsi | TIGR01298 RNaseT, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | RNT_XYLFA | |
Accessioni | Q9PBJ8Primary (citable) accession number: Q9PBJ8 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | November 1, 2002 |
Last sequence update: | October 1, 2000 | |
Last modified: | May 8, 2019 | |
This is version 87 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Complete proteome, Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families