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Industrial Biotransformations

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Carboxypeptidase B<br />

Pig Pancreas<br />

H2N<br />

S<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 />

[1]: 0.4 g · L –1<br />

[2]: 0.36 g · L –1<br />

pH: 8.0<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 />

S<br />

EC 3.4.17.2<br />

H2N 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 HIS<br />

LYS<br />

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

PRO<br />

GLY PHE TYR THR<br />

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

2 = human insulin<br />

Fig. 3.4.17.2 – 1<br />

346<br />

H2N<br />

S<br />

1<br />

S<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 />

H2N 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 />

2<br />

E<br />

- Arg<br />

Sanofi Aventis

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