Izvorni kod stranice Teobromin sintaza

{{Infobox Enzim
| Name = Teobromin sintaza
| EC_number = 2.1.1.159
| CAS_number = 
| IUBMB_EC_number = 2/1/1/159
| GO_code = 
| image = 
| width = 
| caption =
}}
'''Teobromin sintaza''' ({{EC broj|2.1.1.159}}, ''monometilksantinska metiltransferaza'', ''MXMT'', ''CTS1'', ''CTS2'', ''S-adenozil-L-metionin:7-metilksantin 3-N-metiltransferaza'') je [[enzim]] sa sistematskim imenom ''S-adenozil-L-metionin:7-metilksantin N<sup>3</sup>-metiltransferaza''.<ref>{{cite journal | title = 7-Methylxanthine methyltransferase of coffee plants. Gene isolation and enzymatic properties |author = Ogawa, M., Herai, Y., Koizumi, N., Kusano, T. and Sano, H. |journal = J. Biol. Chem. |date = 2001 |volume = 276 |pages = 8213-8218 |pmid = 11108716}}</ref><ref>{{cite journal | title = Molecular cloning and functional characterization of three distinct ''N''-methyltransferases involved in the caffeine biosynthetic pathway in coffee plants | url = https://archive.org/details/sim_plant-physiology_2003-05_132_1/page/372 |author = Uefuji, H., Ogita, S., Yamaguchi, Y., Koizumi, N. and Sano, H. |journal = Plant Physiol. |date = 2003 |volume = 132 |pages = 372-380 |pmid = 12746542}}</ref><ref>{{cite journal | title = Substrate specificity of ''N''-methyltransferase involved in purine alkaloids synthesis is dependent upon one amino acid residue of the enzyme |author = Yoneyama, N., Morimoto, H., Ye, C.X., Ashihara, H., Mizuno, K. and Kato, M. |journal = Mol. Genet. Genomics |date = 2006 |volume = 275 |pages = 125-135 |pmid = 16333668}}</ref> Ovaj enzim [[Kataliza|katalizuje]] sledeću [[hemijska reakcija|hemijsku reakciju]]

: S-adenozil-L-metionin + [[7-metilksantin]] <math>\rightleftharpoons</math> S-adenozil-L-homocistein + 3,7-dimetilksantin

Ovo je treći enzim u biosintezi [[kofein]]a. Enzim takođe može da katalizuje konverziju [[paraksantin]]a u kofein.

== Reference ==
{{reflist}}

== Literatura ==
{{refbegin|2}}
* {{PriceEnzymology3rd}}
* {{TooneAdvancesInEnzymology}}
* {{Branden ProteinStructure2nd}}
* {{SegelEnzymeKinetics}}
* {{CopelandEvaluationOfEnzymeInhibitors2nd}}
* {{MichalBiochemicalPathways}}
{{refend}}

== Spoljašnje veze ==
* {{MeshName|Theobromine+synthase}}

{{Enzimi}}

[[Kategorija:EC 2.1.1]]