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O-acetylhomoserine thiol-lyase

O-acetylhomoserine (thiol)-lyase

(Science: enzyme) With hydrogen sulfide, forms homocysteine

registry number: EC 4.2.99.10

Synonym: acetylhomoserine sulfhydrylase, homocysteine synthase, oah sulfhydrylase, o-acetylhomoserine sulfhydrylase, o-acetyl-l-homoserine sulfhydrylase, o-acetylhomoserine-o-acetylserine sulfhydrylase, met25 sulfhydrylase, o-acetylserine-o-acetylhomoserine sulfohydro-lyase, aahshase


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Re: Krebs Cycle question

... the resulting thioester (citryl-CoA) so the net reaction is the transfer of an acetate group to oxaloacetate removing the CoA in the process. The thiol activates in two senses: it enhances the rate of enolization (the methyl protons of the thioester are more acidic than a simple ester); and preferentially ...

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by blcr11
Sun Dec 28, 2008 12:28 am
 
Forum: Cell Biology
Topic: Krebs Cycle question
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Views: 1185

TMPT

... See http://www.chem.qmul.ac.uk/iubmb/enzyme/EC2/1/1/67.html There is another enzyme, EC 2.1.1.9 with a similar name, but it has a broader range of thiol acceptors compared to EC 2.1.1.67 (TPMT). You can check out this kind of information from either the Enzyme Commission web site, or the Expasy ...

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by blcr11
Sun Oct 14, 2007 7:37 am
 
Forum: Genetics
Topic: TMPT
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Views: 756

The Fiber Disease

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by Skytroll
Tue May 02, 2006 4:47 pm
 
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Topic: The Fiber Disease
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Determining thiol groups...??

... while ago. We need to some calculations and answer some questions concerning the practical. One question is to calculate the number of reactive thiol groups in one molecule of the protein. No matter how much I have tried I can't figure out how to do this. We were given the molecular weight of ...

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by Dolphine
Sun Jan 01, 2006 4:40 pm
 
Forum: Molecular Biology
Topic: Determining thiol groups...??
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