Hi, Also Secreated Phospholipase A2 enzyme requires Calcium for its catalysis. Regards Kavya > > On 5/31/13, Patrick Loll <[log in to unmask]> wrote: >> staph nuclease >> >> On 31 May 2013, at 6:25 AM, Wei Liu wrote: >> >>> Dear all, >>> >>> As we all know, many proteins contain calcium ions. Does anyone know if >>> there are reported cases where calcium ions play a catalytic role >>> rather >>> than a structural role in enzymes? >>> >>> Best >>> Wei Liu >> >> >> >> --------------------------------------------------------------------------------------- >> Patrick J. Loll, Ph. D. >> Professor of Biochemistry & Molecular Biology >> Director, Biochemistry Graduate Program >> Drexel University College of Medicine >> Room 10-102 New College Building >> 245 N. 15th St., Mailstop 497 >> Philadelphia, PA 19102-1192 USA >> >> (215) 762-7706 >> [log in to unmask] >> > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > > -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.