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2.7.7.53: ATP adenylyltransferase

This is an abbreviated version!
For detailed information about ATP adenylyltransferase, go to the full flat file.

Word Map on EC 2.7.7.53

Reaction

ADP
+
ATP
=
phosphate
+
P1,P4-bis(5'-adenosyl) tetraphosphate

Synonyms

5',5'''-P1,P4-tetraphosphate phosphorylase, adenine triphosphate adenylyltransferase, adenylyltransferase, adenine triphosphate, AP-4-A phosphorylase, Ap3A/Ap4A phosphorylase, Ap4A phosphorylase, bis(5'-nucleosyl)-tetraphosphate phosphorylase (NDP-forming), diadenosine 5',5'''-P1,P4-tetraphosphate alpha,beta-phosphorylase, diadenosine 5',5'''-P1,P4-tetraphosphate alpha,beta-phosphorylase (ADP-forming), diadenosine 5',5'''-P1,P4-tetraphosphate alphabeta-phosphorylase (ADP-forming), diadenosine 5',5'''-P1,P4-tetraphosphate phosphorylase, diadenosinetetraphosphate alpha,beta-phosphorylase, diadenosinetetraphosphate alphabeta-phosphorylase, dinucleoside oligophosphate alphabeta-phosphorylase, MAV_3489, MEG_2932, Rv2613c

ECTree

     2 Transferases
         2.7 Transferring phosphorus-containing groups
             2.7.7 Nucleotidyltransferases
                2.7.7.53 ATP adenylyltransferase

Engineering

Engineering on EC 2.7.7.53 - ATP adenylyltransferase

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PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
A149Del
an Ala149 deletion mutant displays substrate specificity for diadenosine 5',5'''-P1,P5-pentaphosphate and is inactive on Ap4A and other substrates utilized by the wild-type enzyme
G146Q
about 20% of wild-type activity
G146S
about 30% of wild-type activity
N139A
complete loss of activity
N139Q
complete loss of activity
N139Q/S147T
complete loss of activity
S147A
about 8% of wild-type activity
S147T
about 15% of wild-type activity
W160A
complete loss of activity
A149Del
-
an Ala149 deletion mutant displays substrate specificity for diadenosine 5',5'''-P1,P5-pentaphosphate and is inactive on Ap4A and other substrates utilized by the wild-type enzyme
-
G146S
-
about 30% of wild-type activity
-
N139A
-
complete loss of activity
-
N139Q
-
complete loss of activity
-
S147A
-
about 8% of wild-type activity
-
W160A
-
complete loss of activity
-