Enzymes

Discussion of all aspects of cellular structure, physiology and communication.

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chen.lie
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Enzymes

Post by chen.lie » Wed Nov 09, 2005 7:35 pm

Does anybody know what the SH-group of an enzyme is?
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Fried Zygote Sandwich
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Post by Fried Zygote Sandwich » Wed Nov 09, 2005 10:40 pm

Sulfhydryl. I think it's an inhibitor site...

chen.lie
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Post by chen.lie » Thu Nov 10, 2005 11:56 am

is it in the active site? does t mean that if sometinh affect this group, the enzyme won't be able to do its job?

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canalon
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Post by canalon » Thu Nov 10, 2005 4:51 pm

-SH groups come from Cystein in the protein. They can probably be involved in some active sites, but this is not a rule. However disulfide between 2 cysteines are often important for protein structural stability
Patrick

Science has proof without any certainty. Creationists have certainty without
any proof. (Ashley Montague)

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Morris
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Post by Morris » Thu Nov 10, 2005 9:44 pm

In a protein, an AA with SH in the end of lateral chain (if I 'm not wrong is metionine) can make S-S bonds.

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