UniProtKB - P57169 (CCA_BUCAI)
Protein
CCA-adding enzyme
Gene
cca
Organism
Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon pisum symbiotic bacterium)
Status
Functioni
Catalyzes the addition and repair of the essential 3'-terminal CCA sequence in tRNAs without using a nucleic acid template. Adds these three nucleotides in the order of C, C, and A to the tRNA nucleotide-73, using CTP and ATP as substrates and producing inorganic pyrophosphate.UniRule annotation
Miscellaneous
A single active site specifically recognizes both ATP and CTP and is responsible for their addition.UniRule annotation
Catalytic activityi
- EC:2.7.7.72UniRule annotation
Cofactori
Mg2+UniRule annotation
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 8 | ATP or CTP; via amide nitrogenUniRule annotation | 1 | |
Binding sitei | 11 | ATP or CTPUniRule annotation | 1 | |
Metal bindingi | 21 | MagnesiumUniRule annotation | 1 | |
Metal bindingi | 23 | MagnesiumUniRule annotation | 1 | |
Binding sitei | 91 | ATP or CTPUniRule annotation | 1 | |
Binding sitei | 137 | ATP or CTPUniRule annotation | 1 | |
Binding sitei | 140 | ATP or CTPUniRule annotation | 1 |
GO - Molecular functioni
- ATP:3'-cytidine-cytidine-tRNA adenylyltransferase activity Source: UniProtKB-EC
- ATP binding Source: UniProtKB-UniRule
- CTP:3'-cytidine-tRNA cytidylyltransferase activity Source: UniProtKB-EC
- CTP:tRNA cytidylyltransferase activity Source: UniProtKB-EC
- magnesium ion binding Source: UniProtKB-UniRule
- tRNA binding Source: UniProtKB-UniRule
- tRNA cytidylyltransferase activity Source: UniProtKB-UniRule
GO - Biological processi
- RNA repair Source: UniProtKB-KW
- tRNA 3'-terminal CCA addition Source: UniProtKB-UniRule
Keywordsi
Molecular function | Nucleotidyltransferase, RNA-binding, Transferase |
Biological process | RNA repair, tRNA processing |
Ligand | ATP-binding, Magnesium, Metal-binding, Nucleotide-binding |
Names & Taxonomyi
Protein namesi | Recommended name: CCA-adding enzymeUniRule annotation (EC:2.7.7.72UniRule annotation)Alternative name(s): CCA tRNA nucleotidyltransferaseUniRule annotation tRNA CCA-pyrophosphorylaseUniRule annotation tRNA adenylyl-/cytidylyl- transferaseUniRule annotation tRNA nucleotidyltransferaseUniRule annotation tRNA-NTUniRule annotation |
Gene namesi | Name:ccaUniRule annotation Ordered Locus Names:BU061 |
Organismi | Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon pisum symbiotic bacterium) |
Taxonomic identifieri | 107806 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Erwiniaceae › Buchnera › |
Proteomesi |
|
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000139017 | 1 – 414 | CCA-adding enzymeAdd BLAST | 414 |
Family & Domainsi
Sequence similaritiesi
Belongs to the tRNA nucleotidyltransferase/poly(A) polymerase family. Bacterial CCA-adding enzyme type 2 subfamily.UniRule annotation
Phylogenomic databases
eggNOGi | COG0617, Bacteria |
HOGENOMi | CLU_015961_1_1_6 |
OMAi | GWTFHGH |
Family and domain databases
Gene3Di | 3.30.460.10, 1 hit |
HAMAPi | MF_01262, CCA_bact_type2, 1 hit |
InterProi | View protein in InterPro IPR012006, CCA_bact IPR043519, NT_sf IPR002646, PolA_pol_head_dom IPR032828, PolyA_RNA-bd |
Pfami | View protein in Pfam PF01743, PolyA_pol, 1 hit PF12627, PolyA_pol_RNAbd, 1 hit |
PIRSFi | PIRSF000813, CCA_bact, 1 hit |
SUPFAMi | SSF81301, SSF81301, 1 hit |
i Sequence
Sequence statusi: Complete.
P57169-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MKIYLVGGAV RDSLLNLPVK DKDWVVVGGT EKILLERNFQ QVGKDFPVFL
60 70 80 90 100
HPETHEEYAL ARKERKSGKG YTGFDTDCNS DVTLEEDLIR RDLTINAIAQ
110 120 130 140 150
DEYGNYIDPF QGKKDIECGL IRHVSESFIE DPLRVLRVAR FAATLVHLGF
160 170 180 190 200
KIAEETMLLM CIIVKKQELS YLTSNRIWNE TEKALKTLNP HVYFQVLYEC
210 220 230 240 250
NALHFFFPEM YFLYEKKNFL NRSFFKKFCN KNIILMGLAE ISLLNKDIDV
260 270 280 290 300
RFSYLCQFLS VNQIDRNYSK IFFDSYAASI IHSVCKRFKI PSYIRDIAVL
310 320 330 340 350
NTGFYFFLNT IHYQSSKNII NLFSKVDAWR KPDRVKKLAF LSNFNFLRNF
360 370 380 390 400
KSEFFCIKSG CFLEKCFSVV KNVSIKLILK KGFKGYEIKQ EITRLRIKKL
410
EFWRIKNIKH RFYL
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | BA000003 Genomic DNA Translation: BAB12784.1 |
RefSeqi | NP_239898.1, NC_002528.1 WP_009874018.1, NC_002528.1 |
Genome annotation databases
EnsemblBacteriai | BAB12784; BAB12784; BAB12784 |
KEGGi | buc:BU061 |
PATRICi | fig|107806.10.peg.70 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | BA000003 Genomic DNA Translation: BAB12784.1 |
RefSeqi | NP_239898.1, NC_002528.1 WP_009874018.1, NC_002528.1 |
3D structure databases
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Protein-protein interaction databases
STRINGi | 107806.10038749 |
Genome annotation databases
EnsemblBacteriai | BAB12784; BAB12784; BAB12784 |
KEGGi | buc:BU061 |
PATRICi | fig|107806.10.peg.70 |
Phylogenomic databases
eggNOGi | COG0617, Bacteria |
HOGENOMi | CLU_015961_1_1_6 |
OMAi | GWTFHGH |
Family and domain databases
Gene3Di | 3.30.460.10, 1 hit |
HAMAPi | MF_01262, CCA_bact_type2, 1 hit |
InterProi | View protein in InterPro IPR012006, CCA_bact IPR043519, NT_sf IPR002646, PolA_pol_head_dom IPR032828, PolyA_RNA-bd |
Pfami | View protein in Pfam PF01743, PolyA_pol, 1 hit PF12627, PolyA_pol_RNAbd, 1 hit |
PIRSFi | PIRSF000813, CCA_bact, 1 hit |
SUPFAMi | SSF81301, SSF81301, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | CCA_BUCAI | |
Accessioni | P57169Primary (citable) accession number: P57169 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | December 1, 2000 |
Last sequence update: | December 1, 2000 | |
Last modified: | December 2, 2020 | |
This is version 93 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
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families