Enzymes
| UniProtKB help_outline | 6,888 proteins |
| Enzyme class help_outline |
|
Reaction participants Show >> << Hide
- Name help_outline cytidine Identifier CHEBI:17562 (Beilstein: 89173; CAS: 65-46-3) help_outline Charge 0 Formula C9H13N3O5 InChIKeyhelp_outline UHDGCWIWMRVCDJ-XVFCMESISA-N SMILEShelp_outline Nc1ccn([C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)c(=O)n1 2D coordinates Mol file for the small molecule Search links Involved in 14 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline phosphate Identifier CHEBI:43474 Charge -2 Formula HO4P InChIKeyhelp_outline NBIIXXVUZAFLBC-UHFFFAOYSA-L SMILEShelp_outline OP([O-])([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 992 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline α-D-ribose 1-phosphate Identifier CHEBI:57720 (Beilstein: 6893776) help_outline Charge -2 Formula C5H9O8P InChIKeyhelp_outline YXJDFQJKERBOBM-TXICZTDVSA-L SMILEShelp_outline OC[C@H]1O[C@H](OP([O-])([O-])=O)[C@H](O)[C@@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 12 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline cytosine Identifier CHEBI:16040 (Beilstein: 2637; CAS: 71-30-7) help_outline Charge 0 Formula C4H5N3O InChIKeyhelp_outline OPTASPLRGRRNAP-UHFFFAOYSA-N SMILEShelp_outline Nc1cc[nH]c(=O)n1 2D coordinates Mol file for the small molecule Search links Involved in 8 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:52540 | RHEA:52541 | RHEA:52542 | RHEA:52543 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
|
|||
| EC numbers help_outline | ||||
| MetaCyc help_outline |
Publications
-
Induction of nucleoside phosphorylase in Enterobacter aerogenes and enzymatic synthesis of adenine arabinoside.
Wei X.K., Ding Q.B., Zhang L., Guo Y.L., Ou L., Wang C.L.
Nucleoside phosphorylases (NPases) were found to be induced in Enterobacter aerogenes DGO-04, and cytidine and cytidine 5'-monophosphate (CMP) were the best inducers. Five mmol/L to fifteen mmol/L cytidine or CMP could distinctly increase the activities of purine nucleoside phosphorylase (PNPase), ... >> More
Nucleoside phosphorylases (NPases) were found to be induced in Enterobacter aerogenes DGO-04, and cytidine and cytidine 5'-monophosphate (CMP) were the best inducers. Five mmol/L to fifteen mmol/L cytidine or CMP could distinctly increase the activities of purine nucleoside phosphorylase (PNPase), uridine phosphorylase (UPase) and thymidine phosphorylase (TPase) when they were added into medium from 0 to 8 h. In the process of enzymatic synthesis of adenine arabinoside from adenine and uracil arabinoside with wet cells of Enterobacter aerogenes DGO-04 induced by cytidine or CMP, the reaction time could be shortened from 36 to 6 h. After enzymatic reaction the activity of NPase in the cells induced remained higher than that in the cells uninduced. << Less
-
Nontargeted in vitro metabolomics for high-throughput identification of novel enzymes in Escherichia coli.
Sevin D.C., Fuhrer T., Zamboni N., Sauer U.
Our understanding of metabolism is limited by a lack of knowledge about the functions of many enzymes. Here, we develop a high-throughput mass spectrometry approach to comprehensively profile proteins for in vitro enzymatic activity. Overexpressed or purified proteins are incubated in a supplement ... >> More
Our understanding of metabolism is limited by a lack of knowledge about the functions of many enzymes. Here, we develop a high-throughput mass spectrometry approach to comprehensively profile proteins for in vitro enzymatic activity. Overexpressed or purified proteins are incubated in a supplemented metabolome extract containing hundreds of biologically relevant candidate substrates, and accumulating and depleting metabolites are determined by nontargeted mass spectrometry. By combining chemometrics and database approaches, we established an automated pipeline for unbiased annotation of the functions of novel enzymes. In screening all 1,275 functionally uncharacterized Escherichia coli proteins, we discovered 241 potential novel enzymes, 12 of which we experimentally validated. Our high-throughput in vitro metabolomics method is generally applicable to any purified protein or crude cell lysate of its overexpression host and enables performing up to 1,200 nontargeted enzyme assays per working day. << Less
Nat. Methods 14:187-194(2017) [PubMed] [EuropePMC]
This publication is cited by 30 other entries.