Enzymes

[chen.lie]

Does anybody know what the SH-group of an enzyme is?
Regards;

[Fried Zygote Sandwich]

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

[chen.lie]

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?

[canalon]

-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

[Morris]

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.