Exploring the low photosynthetic efficiency of cyanobacteria in blue light using a mutant lacking phycobilisomes

Photosynthesis Research - The ubiquitous chlorophyll a (Chl a) pigment absorbs both blue and red light. Yet, in contrast to green algae and higher plants, most cyanobacteria have much lower...     

Microchromatography of hemoglobins : VII. Detection of some uncommon hemoglobin variants and two rapid methods for the quantitation of Hb-A2 in the presence of Hb-C

Microchromatographic procedures on columns of DEAE- or CM-cellulose are described for the separation of the more common abnormal hemoglobins S and C from other, often uncommon, variants such as J, N, I, K-Woolwich, Hope, D, E, O, and Deer Lodge. Two procedures on conventionally sized columns of CM-cellulose permit the quantitative determination of Hb-A₂ in the presence of Hb-C in a day.     

Separation of the A gamma and G gamma cyanogen bromide peptides of human fetal hemoglobin by high-pressure liquid chromatography.

The ^Gγ and ^Aγ variants of human fetal hemoglobin are defined on the basis of a single glycine/alanine substitution at position 136 of the γ chain which is located in the carboxyterminal cyanogen bromide fragment (γCB-3). This communication describes the rapid separation of these two tridecapeptides by high-pressure liquid chromatography. Application of this new technique will facilitate the study of the biosynthesis and genetics of human fetal hemoglobin.