Bacterial virus anti-defence systems · sequence & structure resource

Encyclopaedia of Bacterial Virus Anti-Defence Systems


Protein: NARP2_nampt (nicotinamide phosphoribosyltransferase)

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Overview

Mode of Action (MoA) synthesises nicotinamide mononucleotide from nicotinamide and phosphoribosyl pyrophosphate
Evidence Expression of Nampt from Vibrio phage KVP40 produced NMN from PRPP and nicotinamide in vitro. LC–MS confirmed NMN as the primary product (ECO_0001096), and the enzyme showed a strong substrate preference for PRPP over ADPR-PP.
MoA Category synthesises and restores essential molecules depleted by bacterial defence
Subtype(s) of the defence system(s) inhibited by the protein Defence Subtype Bacillus subtilis type I Thoeris, DSR1, DSR2 and SEFIR. Escherichia coli SIR2–HerA
Relevant publication(s) DOI 10.1038/s41586-024-07986-w
Other components of the anti-defence system Multicomponent System nmnat
Known structure in PDB PDB ID -
Genome(s) encoding the protein Protein Source Vibrio phage KVP40
Defence system(s) inhibited by the protein Defences Thoeris, DSR, SIR2-HerA, SEFIR

3D structure

AlphaFold 3 model.

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Feature viewer - predicted secondary structure

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Pfam annotations

Pfam Name Pfam Acc Pfam Length Colour HMM Start HMM End Ali Start Ali End Env Start Env End Evalue
NAMPT_N PF18127 98 1 98 7 101 7 101 4.1e-42
NAPRTase PF04095 239 1 224 177 420 177 462 1.4e-49

Sequence Viewer

Amino acid position: -

MLNLNQNIAIATDSYKVSHWSQFPRGLEYSQYYVESRGGKFDKIMVDGMAYMCRILEKGVSMNDVKRAKRLFKKHFGSEVFNDKGWDIIVNELKGKLPIKIRAVKEGTVVPVKHPILTIENTDPRFGWLPGYLETFILRALWYPTTVATISFEVKKIIRQFMKKTVDDERIAEQEPFKLHDFGSRGVSSGESAAIGGSAHLKNFLGTDTVEALVAVEELYAEDVEDFIAGFSIPAREHSTTTIYKEAGEDQAFLNSIEQWGAALYACVMDSYDYEAAMNRVSTGRFKELIISKGGTFVARPDSGVPVDVVMKGLEILGKNVGYTINSKGYKVLHPSYRIIQGDGVNIEEIRRILSYMESKGWSAENIAFGMGGGLLQQLDRDTQRFAMKMSAAIINGEYVSVFKMPKTDPTKASKAGFLDLIAVDADNPNPAARGYVTFSSEDYDNRVHPKSVMQTIFEDGVTVADFSLEEARKLSDVQADFLNEGEWKIAKKIQTA