Characterization of mycosporine-serine-glycine methyl ester, a major mycosporine-like amino acid from dinoflagellates: a mass spectrometry study

2013 ◽  
Vol 49 (4) ◽  
pp. 680-688 ◽  
Author(s):  
Mario O. Carignan ◽  
José I. Carreto
Keyword(s):  
Mass Spectrometry ◽  
Amino Acid ◽  
Methyl Ester ◽  
Mass Spectrometry Study ◽  
Glycine Methyl Ester

Biochemical characterization of a glucoamylase from Saccharomycopsis fibuligera R64

Biologia ◽  
2011 ◽  
Vol 66 (1) ◽  
Author(s):  
Dessy Natalia ◽  
Keni Vidilaseris ◽  
Pasjan Satrimafitrah ◽  
Wangsa Ismaya ◽  
Purkan ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Amino Acid ◽  
Amino Acid Sequence Identity ◽  
Biochemical Characterization ◽  
Saccharomycopsis Fibuligera ◽  
Sequence Identity ◽  
Ic50 Value ◽  
High Amino Acid ◽  
Ph Range

AbstractGlucoamylase from the yeast Saccharomycopsis fibuligera R64 (GLL1) has successfully been purified and characterized. The molecular mass of the enzyme was 56,583 Da as determined by mass spectrometry. The purified enzyme demonstrated optimum activity in the pH range of 5.6–6.4 and at 50°C. The activity of the enzyme was inhibited by acarbose with the IC50 value of 5 μM. GLL1 shares high amino acid sequence identity with GLU1 and GLA1, which are Saccharomycopsis fibuligera glucoamylases from the strains HUT7212 and KZ, respectively. The properties of GLL1, however, resemble that of GLU1. The elucidation of the primary structure of GLL1 contributes to the explanation of this finding.

Characterization of amino acid-derived betaines by electrospray ionization tandem mass spectrometry

2012 ◽  
Vol 47 (1) ◽  
pp. 79-88 ◽  
Author(s):  
V. Naresh Chary ◽  
Ch. Dinesh Kumar ◽  
M. Vairamani ◽  
S. Prabhakar
Keyword(s):  
Mass Spectrometry ◽  
Amino Acid ◽  
Tandem Mass Spectrometry ◽  
Electrospray Ionization ◽  
Tandem Mass ◽  
Ionization Tandem Mass Spectrometry

Functionality Dependent Olefin Activity in Acyclic Diene Metathesis Polymerization:  Mass Spectrometry Characterization of Amino Acid Functionalized Olefins

2006 ◽  
Vol 78 (11) ◽  
pp. 3624-3631 ◽  
Author(s):  
Violeta I. Petkovska ◽  
Timothy E. Hopkins ◽  
David H. Powell ◽  
Kenneth B. Wagener
Keyword(s):  
Mass Spectrometry ◽  
Amino Acid ◽  
Acyclic Diene Metathesis ◽  
Metathesis Polymerization ◽  
Acyclic Diene Metathesis Polymerization ◽  
Diene Metathesis

Indoles and auxins. VII. Active esters and anhydrides of 3-indoleacetic acid

1970 ◽  
Vol 48 (1) ◽  
pp. 177-179 ◽  
Author(s):  
Judith C. Hart ◽  
Eileen M. Matheson ◽  
O. Hutzinger
Keyword(s):  
Amino Acid ◽  
Methyl Ester ◽  
Indoleacetic Acid ◽  
Amino Acid Derivatives ◽  
Activated Esters ◽  
Active Esters ◽  
Glycine Methyl Ester

The synthesis of activated esters and anhydrides of 3-indoleacetic acid is described. Their usefulness for the preparation of amino acid derivatives is shown by reaction with glycine methyl ester.

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