scholarly journals Haemoglobins of the Adult Domestic Fowl Gallus Domesticus

1969 ◽  
Vol 22 (6) ◽  
pp. 1455 ◽  
Author(s):  
BA Moss ◽  
EOP Thompson
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Cation Exchange ◽  
Amino Acid Analysis ◽  
Domestic Fowl ◽  
Exchange Chromatography ◽  
Gallus Domesticus ◽  
Cation Exchange Chromatography ◽  
Acidic Component ◽  
Dibasic Amino Acids

The haemoglobins of the adult domestic fowl were resolved by cation-exchange chromatography into two distinct components (designated Hb I and Hb II) in a ratio about 3 : 1. A third minor acidic component, Hb III, representing only 1 % of the total was also present. Hb I and Hb II and each of their globin subunits (0:1, pI; o:II, PII) were subjected to amino acid analysis. As reported by other workers, Hb II was found to have more of the dicarboxylic amino acids and less of the dibasic amino acids than Hb 1.

Quantitative Cation-Exchange Chromatographic Analysis of Free Amino Acids in Human Amniotic Fluid Collected during Early Pregnancy

1970 ◽  
Vol 16 (11) ◽  
pp. 891-895 ◽  
Author(s):  
Abraham Saifer ◽  
Edward A'Zary ◽  
Carlo Valenti ◽  
Larry Schneck
Keyword(s):  
Amino Acids ◽  
Amniotic Fluid ◽  
Cation Exchange ◽  
Free Amino Acids ◽  
Free Amino ◽  
Exchange Chromatography ◽  
Aminobutyric Acid ◽  
Cation Exchange Chromatography ◽  
Human Amniotic Fluid ◽  
Total Free Amino Acids

Abstract The concentration of free amino acids in amniotic fluids, obtained from 27 normal mothers between the eighth and 22nd weeks of gestation, was determined by cation-exchange chromatography. Of the 29 free amino acids detected, three—γ-aminobutyric acid, ethanolamine, and homocarnosine— had not previously been found in amniotic fluid. The seven most common (in descending order) are alanine, glutamic acid-glutamine, lysine, proline, threonine, glycine, and valine. These seven comprise 70% of the total free amino acids present. All of the amino acids found in amniotic fluid have been found in serum and urine from fetuses and newborns and in the mother's urine. However, three of the amino acids found in amniotic fluid—ethanolamine, hydroxyproline, and homocarnosine—have not been reported to be present in serum from mothers.

Sign in / Sign up

Export Citation Format

Share Document