09.12.2012 Views

Industrial Biotransformations

Industrial Biotransformations

Industrial Biotransformations

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Carboxypeptidase B<br />

Pig Pancreas<br />

H 2N<br />

GLY<br />

ILE<br />

VAL GLU GLN CYS CYS THR SER ILE CYS SER LEU<br />

CYS<br />

THR GLN LEU GLU ASN TYR ASN<br />

COOH<br />

1) Reaction conditions<br />

T: 30–35 °C<br />

medium: aqueous<br />

reaction type: carboxylic acid amide hydrolysis<br />

catalyst: solubilized enzyme<br />

enzyme: peptidyl-l-arginine hydrolyase (carboxypeptidase)<br />

strain: pig pancreas<br />

CAS (enzyme): [9025–24–5]<br />

2) Remarks<br />

● See preparation of educt on page 354.<br />

● For an overview of alternative synthetic path see page 346.<br />

S<br />

S<br />

EC 3.4.17.2<br />

H2N<br />

PHE<br />

VAL<br />

S<br />

S<br />

S<br />

S<br />

COOH<br />

ASN<br />

ARG<br />

GLN<br />

ARG<br />

HIS<br />

THR<br />

LEU CYS GLY SER<br />

LYS<br />

HIS LEU VAL GLU ALA LEU TYR LEU VAL CYS GLY GLU ARG GLY PHE TYR THR PRO<br />

H 2N<br />

1 = mono/di-arg-insulin<br />

2 = human insulin<br />

S<br />

S<br />

GLY<br />

ILE<br />

VAL GLU GLN CYS CYS THR SER ILE CYS SER<br />

LEU<br />

CYS<br />

THR GLN LEU GLU ASN TYR ASN<br />

COOH<br />

H2N<br />

S<br />

PHE<br />

VAL<br />

ASN<br />

GLN<br />

S<br />

S<br />

S<br />

COOH<br />

HIS<br />

THR<br />

LEUCYS<br />

GLY SER HIS<br />

LYS<br />

LEU VAL GLU ALA LEU TYR LEU VAL CYS GLY GLU ARG<br />

PRO<br />

GLY PHE TYR THR<br />

Fig. 3.4.17.2 – 1<br />

344<br />

1<br />

2<br />

E<br />

- Arg<br />

Eli Lilly

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!