Literature summary for 2.7.7.85 extracted from

Mueller, M.; Deimling, T.; Hopfner, K.P.; Witte, G.
Structural analysis of the diadenylate cyclase reaction of DNA-integrity scanning protein A (DisA) and its inhibition by 3-dATP (2015), Biochem. J., 469, 367-374.

Crystallization (Commentary)

Crystallization (Comment)	Organism
structure in the presence of 3'-dATP and Mn2+. The metal ion is octahedrally coordinated with all six coordination positions occupied by oxygen ligands. The three phosphate groups from 3'-dATP together with Asp75 from the adjacent subunit and two water molecules are all located between 2.0 and 2.5 A from the manganese. The pre-reaction state shows a highly coordinated arrangement of the two ATP (-analogues) in almost optimal distance for the nucleophilic attack of the 3'-OH on the alpha-phosphate of the neighbouring ATP. The rate-limiting step of cyclic di-AMP synthesis by DisA is not defined by the reaction itself, but rather by the accessibility of the active site	Thermotoga maritima

Crystallization (Comment)

Organism

structure in the presence of 3'-dATP and Mn2+. The metal ion is octahedrally coordinated with all six coordination positions occupied by oxygen ligands. The three phosphate groups from 3'-dATP together with Asp75 from the adjacent subunit and two water molecules are all located between 2.0 and 2.5 A from the manganese. The pre-reaction state shows a highly coordinated arrangement of the two ATP (-analogues) in almost optimal distance for the nucleophilic attack of the 3'-OH on the alpha-phosphate of the neighbouring ATP. The rate-limiting step of cyclic di-AMP synthesis by DisA is not defined by the reaction itself, but rather by the accessibility of the active site

Thermotoga maritima

Protein Variants

Protein Variants	Comment	Organism
D75N	inactive	Thermotoga maritima

Inhibitors

Inhibitors	Comment	Organism	Structure
3'-dATP	competitive inhibitor of the diadenylate cyclase domain, binds in the same position as ATP	Thermotoga maritima

Molecular Weight [Da]

Molecular Weight [Da]	Molecular Weight Maximum [Da]	Comment	Organism
42000	-	-	Thermotoga maritima
339000	-	gel filtration, mutant D75N	Thermotoga maritima

Organism

Organism	UniProt	Comment	Textmining
Thermotoga maritima	Q9WY43	-	-
Thermotoga maritima DSM 3109	Q9WY43	-	-

Subunits

Subunits	Comment	Organism
octamer	8 * 42000, calculated	Thermotoga maritima

Synonyms

Synonyms	Comment	Organism
disA	-	Thermotoga maritima
DNA integrity scanning protein	-	Thermotoga maritima

IC50 Value

IC50 Value	IC50 Value Maximum	Comment	Organism	Inhibitor	Structure
0.003	-	pH 9.5, 60°C	Thermotoga maritima	3'-dATP