Structural highlights 
  Function 
MNTA_HAEIN Probable antitoxin component of a type VII toxin-antitoxin (TA) system. Neutralizes cognate toxic HEPN probably by di-AMPylation (Probable). A mixture of HepT and MntA binds nucleotides; the highest affinity is for TTP, ATP binds more tightly than ADP or AMP (PubMed:16028221).[1] [2] 
  Evolutionary Conservation 
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
  References 
- ↑ Lehmann C, Pullalarevu S, Krajewski W, Willis MA, Galkin A, Howard A, Herzberg O. Structure of HI0073 from Haemophilus influenzae, the nucleotide-binding domain of a two-protein nucleotidyl transferase. Proteins. 2005 Sep 1;60(4):807-11. PMID:16028221 doi:http://dx.doi.org/10.1002/prot.20586
- ↑ Jia X, Yao J, Gao Z, Liu G, Dong YH, Wang X, Zhang H. Structure-function analyses reveal the molecular architecture and neutralization  mechanism of a bacterial HEPN-MNT toxin-antitoxin system. J Biol Chem. 2018 May 4;293(18):6812-6823. doi: 10.1074/jbc.RA118.002421. Epub, 2018 Mar 19. PMID:29555683 doi:http://dx.doi.org/10.1074/jbc.RA118.002421