The arginine-rich histone complex from fetal calf thymus was found to contain 12 or more histone components by electrophoretic analysis on polyacrylamide gels. The arginine-rich histone complex was resolved into five distinct peaks b,y exclusion chromatography on Sephadex G-100 columns 300 cm in height and 7.6 cm in diameter, with 0.01 M HCl as the eluent. Of the five peaks obtained, two (Peaks...

Insects or products derived from insects are considered as a valuable feed ingredient for aquaculture, poultry, and pigs but also exert possible secondary effects of health stimulators in livestock reported literature. Health benefits attributed to can create additional value the insect chain. Three categories bioactive compounds this desk study: antimicrobial peptides (such ?-helical peptides,...

Glycine-rich proteins (GRPs) are a group of proteins characterized by their high content of glycine residues often occurring in repetitive blocs. The diverse expression pattern and sub cellular localization of various GRPs suggest their implication in different physiological processes. Several GRPs has been isolated and characterized from different monocots and dicots. However, little or no inf...

Protein A1 (Mr approximately 32,000), a major glycine-rich protein of heterogeneous nuclear ribonucleoproteins (hnRNP), was purified to near homogeneity under nondenaturing conditions from HeLa cells. Limited proteolysis of the native protein yields a trypsin-resistant N-terminal nucleic acid-binding domain about 195 amino acids long which has a primary structure nearly identical to that of the...

Pseudomonas aeruginosa hemolytic phospholipase C, PlcH, can degrade phosphatidylcholine (PC) and sphingomyelin in eukaryotic cell membranes and extracellular PC in lung surfactant. Numerous studies implicate PlcH in P. aeruginosa virulence. The phosphorylcholine released by PlcH activity on phospholipids is hydrolyzed by a periplasmic phosphorylcholine phosphatase, PchP. Both plcH gene expressi...

During infectious mononucleosis, IgM autoantibodies are generated to a protein, p542, which contains a glycine-rich 28-mer epitope cross-reactive with the Epstein-Barr nuclear antigen-1 through Epstein-Barr nuclear antigen-l's glycine/ alanine repeat. In normal individuals it is uncommon to find IgG anti-p542, but among patients with progressive systemic sclerosis, systemic lupus erythematosus,...

To the Editor: In reviewing recent studies on the Isk K+ channel, Toru Takumi (4, who discovered this intriguing protein, suggests that together with the M2 protein of influenza virus and phospholemman, Isk defines a new group of voltage-dependent channels with single transmembrane segments, His argument ignores the sequence homology between phospholemman and two other membrane proteins, the y-...