UniProtKB - P9WMK9 (AP4A_MYCTU)
Protein
AP-4-A phosphorylase
Gene
Rv2613c
Organism
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Status
Functioni
Catabolizes diadenosine 5',5'''-P1,P4-tetraphosphate (Ap4A) into ADP and ATP. It does not catalyze the reverse phosphorolysis reaction. The optimum substrates are dinucleoside polyphosphates containing four or five phosphate residues.2 Publications
Miscellaneous
Rv2613c is a unique Ap4A phosphorylase with a primary structure homologous to that of Ap4A hydrolase rather than typical Ap4A phosphorylases. Was identified as a high-confidence drug target.
Catalytic activityi
- EC:2.7.7.531 Publication
Cofactori
Mn2+1 Publication, Co2+1 Publication, Ca2+1 Publication, Mg2+1 PublicationNote: Binds 1 divalent metal ion per subunit. Mn2+ is the most efficient metal, but can also use Co2+, Ca2+ and Mg2+.1 Publication
Kineticsi
- KM=0.1 mM for Ap4A (at 37 degrees Celsius and pH 7.6)1 Publication
- KM=0.94 mM for phosphate (at 37 degrees Celsius and pH 7.6)1 Publication
- Vmax=21.87 µmol/min/mg enzyme toward Ap4A(at 37 degrees Celsius and pH 7.6)1 Publication
- Vmax=26.96 µmol/min/mg enzyme toward phosphate (at 37 degrees Celsius and pH 7.6)1 Publication
pH dependencei
Optimum pH is 8.1 Publication
Temperature dependencei
Optimum temperature is 30 degrees Celsius. The activity completely disappears after treatment at 65 degrees Celsius for 10 min.1 Publication
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 153 | Tele-AMP-histidine intermediateBy similarity | 1 |
GO - Molecular functioni
- ATP adenylyltransferase activity Source: MTBBASE
- ATP binding Source: UniProtKB-KW
- bis(5'-nucleosyl)-tetraphosphatase activity Source: UniProtKB
GO - Biological processi
- diadenosine tetraphosphate catabolic process Source: MTBBASE
Keywordsi
Molecular function | Nucleotidyltransferase, Transferase |
Ligand | ATP-binding, Nucleotide-binding |
Enzyme and pathway databases
BioCyci | MTBH37RV:G185E-6856-MONOMER |
Names & Taxonomyi
Protein namesi | Recommended name: AP-4-A phosphorylase (EC:2.7.7.53)Alternative name(s): ATP adenylyltransferase Diadenosine 5',5'''-P1,P4-tetraphosphate phosphorylase Short name: AP,A phosphorylase |
Gene namesi | Ordered Locus Names:Rv2613c |
Organismi | Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) |
Taxonomic identifieri | 83332 [NCBI] |
Taxonomic lineagei | Bacteria › Actinobacteria › Corynebacteriales › Mycobacteriaceae › Mycobacterium › Mycobacterium tuberculosis complex › |
Proteomesi |
|
Organism-specific databases
TubercuListi | Rv2613c |
Pathology & Biotechi
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 139 | N → A or Q: Abolishes enzyme activity. 1 Publication | 1 | |
Mutagenesisi | 146 | G → Q: Reduces enzyme activity. 1 Publication | 1 | |
Mutagenesisi | 147 | S → A or T: Reduces enzyme activity. 1 Publication | 1 | |
Mutagenesisi | 160 | W → A: Abolishes enzyme activity. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000393106 | 1 – 195 | AP-4-A phosphorylaseAdd BLAST | 195 |
Proteomic databases
PaxDbi | P9WMK9 |
Interactioni
Subunit structurei
Homotetramer.
2 PublicationsProtein-protein interaction databases
STRINGi | 83332.Rv2613c |
Structurei
Secondary structure
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details3D structure databases
SMRi | P9WMK9 |
ModBasei | Search... |
PDBe-KBi | Search... |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 57 – 166 | HITPROSITE-ProRule annotationAdd BLAST | 110 |
Motif
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Motifi | 151 – 155 | Histidine triad motif | 5 |
Phylogenomic databases
eggNOGi | ENOG4108R7S Bacteria COG0537 LUCA |
KOi | K19710 |
OMAi | PYNPGHV |
PhylomeDBi | P9WMK9 |
Family and domain databases
CDDi | cd01275 FHIT, 1 hit |
Gene3Di | 3.30.428.10, 1 hit |
InterProi | View protein in InterPro IPR039383 FHIT IPR001310 Histidine_triad_HIT IPR011146 HIT-like IPR036265 HIT-like_sf |
Pfami | View protein in Pfam PF01230 HIT, 1 hit |
SUPFAMi | SSF54197 SSF54197, 1 hit |
PROSITEi | View protein in PROSITE PS51084 HIT_2, 1 hit |
i Sequence
Sequence statusi: Complete.
P9WMK9-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MSDEDRTDRA TEDHTIFDRG VGQRDQLQRL WTPYRMNYLA EAPVKRDPNS
60 70 80 90 100
SASPAQPFTE IPQLSDEEGL VVARGKLVYA VLNLYPYNPG HLMVVPYRRV
110 120 130 140 150
SELEDLTDLE SAELMAFTQK AIRVIKNVSR PHGFNVGLNL GTSAGGSLAE
160 170 180 190
HLHVHVVPRW GGDANFITII GGSKVIPQLL RDTRRLLATE WARQP
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL123456 Genomic DNA Translation: CCP45410.1 |
PIRi | D70571 |
RefSeqi | NP_217129.1, NC_000962.3 WP_003413484.1, NZ_NVQJ01000023.1 |
Genome annotation databases
EnsemblBacteriai | CCP45410; CCP45410; Rv2613c |
GeneIDi | 888193 |
KEGGi | mtu:Rv2613c mtv:RVBD_2613c |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL123456 Genomic DNA Translation: CCP45410.1 |
PIRi | D70571 |
RefSeqi | NP_217129.1, NC_000962.3 WP_003413484.1, NZ_NVQJ01000023.1 |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
3ANO | X-ray | 1.89 | A/B | 1-195 | [»] | |
3WO5 | X-ray | 2.79 | A/B | 1-195 | [»] | |
SMRi | P9WMK9 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Protein-protein interaction databases
STRINGi | 83332.Rv2613c |
Proteomic databases
PaxDbi | P9WMK9 |
Genome annotation databases
EnsemblBacteriai | CCP45410; CCP45410; Rv2613c |
GeneIDi | 888193 |
KEGGi | mtu:Rv2613c mtv:RVBD_2613c |
Organism-specific databases
TubercuListi | Rv2613c |
Phylogenomic databases
eggNOGi | ENOG4108R7S Bacteria COG0537 LUCA |
KOi | K19710 |
OMAi | PYNPGHV |
PhylomeDBi | P9WMK9 |
Enzyme and pathway databases
BioCyci | MTBH37RV:G185E-6856-MONOMER |
Family and domain databases
CDDi | cd01275 FHIT, 1 hit |
Gene3Di | 3.30.428.10, 1 hit |
InterProi | View protein in InterPro IPR039383 FHIT IPR001310 Histidine_triad_HIT IPR011146 HIT-like IPR036265 HIT-like_sf |
Pfami | View protein in Pfam PF01230 HIT, 1 hit |
SUPFAMi | SSF54197 SSF54197, 1 hit |
PROSITEi | View protein in PROSITE PS51084 HIT_2, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | AP4A_MYCTU | |
Accessioni | P9WMK9Primary (citable) accession number: P9WMK9 Secondary accession number(s): L0TA61, O06201, Q7D6W5 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 16, 2014 |
Last sequence update: | April 16, 2014 | |
Last modified: | September 18, 2019 | |
This is version 32 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
3D-structure, Complete proteome, Direct protein sequencing, Reference proteomeDocuments
- Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh
Mycobacterium tuberculosis strains ATCC 25618 / H37Rv and CDC 1551 / Oshkosh: entries and gene names - PDB cross-references
Index of Protein Data Bank (PDB) cross-references