:Molybdopterin adenylyltransferase

{{Infobox enzyme

| Name = Molybdopterin adenylyltransferase

| EC_number = 2.7.7.75

| CAS_number =

| GO_code =

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Molybdopterin adenylyltransferase ({{EC number|2.7.7.75}}, MogA, Cnx1) is an enzyme with systematic name ATP:molybdopterin adenylyltransferase.{{cite journal | vauthors = Nichols JD, Rajagopalan KV | title = In vitro molybdenum ligation to molybdopterin using purified components | journal = The Journal of Biological Chemistry | volume = 280 | issue = 9 | pages = 7817–22 | date = March 2005 | pmid = 15632135 | doi = 10.1074/jbc.M413783200 | doi-access = free }}{{cite journal | vauthors = Kuper J, Palmer T, Mendel RR, Schwarz G | title = Mutations in the molybdenum cofactor biosynthetic protein Cnx1G from Arabidopsis thaliana define functions for molybdopterin binding, molybdenum insertion, and molybdenum cofactor stabilization | journal = Proceedings of the National Academy of Sciences of the United States of America | volume = 97 | issue = 12 | pages = 6475–80 | date = June 2000 | pmid = 10823911 | pmc = 18627 | doi = 10.1073/pnas.110568497 | doi-access = free | bibcode = 2000PNAS...97.6475K }}{{cite journal | vauthors = Llamas A, Mendel RR, Schwarz G | title = Synthesis of adenylated molybdopterin: an essential step for molybdenum insertion | journal = The Journal of Biological Chemistry | volume = 279 | issue = 53 | pages = 55241–6 | date = December 2004 | pmid = 15504727 | doi = 10.1074/jbc.M409862200 | doi-access = free }} This enzyme catalyses the following chemical reaction

: ATP + molybdopterin $\backslash rightleftharpoons$ diphosphate + adenylyl-molybdopterin

This enzyme catalyses the activation of molybdopterin for molybdenum insertion.