Enzymes
| UniProtKB help_outline | 5,345 proteins |
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- Name help_outline S-adenosyl-L-methionine Identifier CHEBI:59789 Charge 1 Formula C15H23N6O5S InChIKeyhelp_outline MEFKEPWMEQBLKI-AIRLBKTGSA-O SMILEShelp_outline C[S+](CC[C@H]([NH3+])C([O-])=O)C[C@H]1O[C@H]([C@H](O)[C@@H]1O)n1cnc2c(N)ncnc12 2D coordinates Mol file for the small molecule Search links Involved in 868 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline uroporphyrinogen III Identifier CHEBI:57308 Charge -8 Formula C40H36N4O16 InChIKeyhelp_outline HUHWZXWWOFSFKF-UHFFFAOYSA-F SMILEShelp_outline [O-]C(=O)CCc1c2Cc3[nH]c(Cc4[nH]c(Cc5[nH]c(Cc([nH]2)c1CC([O-])=O)c(CCC([O-])=O)c5CC([O-])=O)c(CCC([O-])=O)c4CC([O-])=O)c(CC([O-])=O)c3CCC([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 4 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,431 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline precorrin-2 Identifier CHEBI:58827 Charge -7 Formula C42H41N4O16 InChIKeyhelp_outline OQIIYZQTTMKFAU-ZNLOQLQNSA-G SMILEShelp_outline C[C@]1(CC([O-])=O)[C@H](CCC([O-])=O)\C2=C\c3[nH]c(Cc4[nH]c(\C=C5/N=C(/C=C1\[NH2+]2)[C@@H](CCC([O-])=O)[C@]5(C)CC([O-])=O)c(CC([O-])=O)c4CCC([O-])=O)c(CCC([O-])=O)c3CC([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 5 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline S-adenosyl-L-homocysteine Identifier CHEBI:57856 Charge 0 Formula C14H20N6O5S InChIKeyhelp_outline ZJUKTBDSGOFHSH-WFMPWKQPSA-N SMILEShelp_outline Nc1ncnc2n(cnc12)[C@@H]1O[C@H](CSCC[C@H]([NH3+])C([O-])=O)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 792 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:32459 | RHEA:32460 | RHEA:32461 | RHEA:32462 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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The structure of Saccharomyces cerevisiae Met8p, a bifunctional dehydrogenase and ferrochelatase.
Schubert H.L., Raux E., Brindley A.A., Leech H.K., Wilson K.S., Hill C.P., Warren M.J.
Sirohaem is a tetrapyrrole-derived prosthetic group that is required for the essential assimilation of sulfur and nitrogen into all living systems as part of the sulfite and nitrite reductase systems. The final two steps in the biosynthesis of sirohaem involve a beta-NAD(+)-dependent dehydrogenati ... >> More
Sirohaem is a tetrapyrrole-derived prosthetic group that is required for the essential assimilation of sulfur and nitrogen into all living systems as part of the sulfite and nitrite reductase systems. The final two steps in the biosynthesis of sirohaem involve a beta-NAD(+)-dependent dehydrogenation of precorrin-2 to generate sirohydrochlorin followed by ferrochelation to yield sirohaem. In Saccharomyces cerevisiae, Met8p is a bifunctional enzyme that carries out both of these reactions. Here, we report the 2.2 A resolution crystal structure of Met8p, which adopts a novel fold that bears no resemblance to the previously determined structures of cobalt- or ferro-chelatases. Analysis of mutant proteins suggests that both catalytic activities share a single active site, and that Asp141 plays an essential role in both dehydrogenase and chelatase processes. << Less
EMBO J. 21:2068-2075(2002) [PubMed] [EuropePMC]
This publication is cited by 4 other entries.
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The Escherichia coli cysG gene encodes S-adenosylmethionine-dependent uroporphyrinogen III methylase.
Warren M.J., Roessner C.A., Santander P.J., Scott A.I.
The Escherichia coli cysG gene was successfully subcloned and over-expressed to produce a 52 kDa protein that was purified to homogeneity. This protein was shown to catalyse the S-adenosylmethionine-dependent methylation of uroporphyrinogen III to give a product identified as sirohydrochlorin on t ... >> More
The Escherichia coli cysG gene was successfully subcloned and over-expressed to produce a 52 kDa protein that was purified to homogeneity. This protein was shown to catalyse the S-adenosylmethionine-dependent methylation of uroporphyrinogen III to give a product identified as sirohydrochlorin on the basis of its absorption spectra, incorporation of 14C label from S-adenosyl[Me-14C]methionine and mass and 1H-n.m.r. spectra of its octamethyl ester. Further confirmation of the structure was obtained from a 14C-n.m.r. spectrum of the methyl ester produced by incubation of the methylase with uroporphyrinogen III, derived from [4.6-13C2]porphobilinogen, and S-adenosyl[Me-13C]methionine. << Less
Biochem. J. 265:725-729(1990) [PubMed] [EuropePMC]
This publication is cited by 2 other entries.
Comments
Multi-step reaction: RHEA:19089 and RHEA:21972