tyrosine ionization
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Ligand accessibility to heme cytochrome b5 coordinating sphere and enzymatic activity enhancement upon tyrosine ionization

2019 ◽  
Vol 24 (3) ◽  
pp. 317-330 ◽  
Author(s):  
Alejandro K. Samhan-Arias ◽  
Cristina M. Cordas ◽  
Marta S. Carepo ◽  
Luisa B. Maia ◽  
Carlos Gutierrez-Merino ◽  
...  
Keyword(s):  
Enzymatic Activity ◽  
Cytochrome B5 ◽  
Activity Enhancement ◽  
Tyrosine Ionization

scholarly journals pH-Jump of Pepsin Studied by Tyrosine Ionization

1986 ◽  
Vol 50 (5) ◽  
pp. 1113-1116
Author(s):  
Keiko Kitagishi ◽  
Keitaro Hiromi
Keyword(s):  
Ph Jump ◽  
Tyrosine Ionization

scholarly journals pH-jump of pepsin studied by tyrosine ionization.

1986 ◽  
Vol 50 (5) ◽  
pp. 1113-1116
Author(s):  
Keiko KITAGISHI ◽  
Keitaro HIROMI
Keyword(s):  
Ph Jump ◽  
Tyrosine Ionization

Study on the influence of tyrosine deprotonation on the myotropic action of angiotensin II

1979 ◽  
Vol 57 (3) ◽  
pp. 317-320
Author(s):  
E. Escher ◽  
G. Guillemette
Keyword(s):  
Angiotensin Ii ◽  
Active Form ◽  
Phenolic Hydroxyl ◽  
Hydroxyl Group ◽  
Ph Range ◽  
Tyrosine Ionization

The influence of phenolic tyrosine ionization in angiotensin II on the myotropic action of this peptide has been investigated in vitro on rabbit aortic strips. [Sar1, Tyr4]angiotensin II and [Sar1, (4′-amino)Phe4]angiotensin II (as a reference which cannot undergo the same ionization) were tested over a pH range from 6.8 to 9.0 and their activities compared. The results clearly indicate that angiotensin II with a deprotonated phenolic hydroxyl group on Tyr in position 4 is not the most active or only active form of angiotensin II.

Effect of tyrosine ionization upon biological activities of angiotensin II and two new peptide analogues

1977 ◽  
Vol 495 (1) ◽  
pp. 151-158 ◽  
Author(s):  
Clovis R. Nakaie ◽  
Maria E.M. Oshiro ◽  
Gilberto Goissis ◽  
Antonio C.M. Paiva
Keyword(s):  
Angiotensin Ii ◽  
Biological Activities ◽  
Tyrosine Ionization ◽  
Peptide Analogues

Tyrosine Ionization in Human Carbon Monoxide and Deoxyhemoglobins*

Biochemistry ◽  
1966 ◽  
Vol 5 (6) ◽  
pp. 1934-1942 ◽  
Author(s):  
Ronald L. Nagel ◽  
Helen M. Ranney ◽  
Lidija L. Kucinskis
Keyword(s):  
Carbon Monoxide ◽  
Tyrosine Ionization
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