Recombinant Pseudomonas putida Creatinine amidohydrolase (crnA)

MSKSVFVGELTWKEYEARVAAGDCVLMLPVGALEQHGHHMCMNVDVLLPTAVCKRVAERIGALVMPGLQYGYKSQQKSGGGNHFPGTTSLDGATLTGTVQDIIRELARHGARRLVLMNGHYENSMFIVEGIDLALRELRYAGIQDFKVVVLSYWDFVKDPAVIQQLYPEGFLGWDIEHGGVFETSLMLALYPDLVDLDRVVDHPPATFPPYDVFPVDPARTPAPGTLSSAKTASREKGELILEVCVQGIADAIREEFPPT

Cyclic amidohydrolase that catalyzes the reversible conversion of creatinine to creatine. Is also active toward glycocyamidine, though the reaction rate is very low, but it is completely inert toward hydantoin and its derivatives.

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Cyclic amidohydrolase that catalyzes the reversible conversion of creatinine to creatine. Is also active toward glycocyamidine, though the reaction rate is very low, but it is completely inert toward hydantoin and its derivatives.

Substitution of Glu122 by glutamine revealed the function of the second water molecule as a proton donor in the binuclear metal enzyme creatininase.Yamashita K., Nakajima Y., Matsushita H., Nishiya Y., Yamazawa R., Wu Y.F., Matsubara F., Oyama H., Ito K., Yoshimoto T.J. Mol. Biol. 396:1081-1096 (2010)

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.