blood group A has A antigens on the red blood cells with anti-B antibodies in the plasma. blood group B has B antigens with anti-A antibodies in the plasma. blood group O has no antigens, but both anti-A and anti-B antibodies in the plasma. blood group AB has both A and B antigens, but no antibodies.
Length: 1  A polypeptide is a single linear chain of many amino acids, held together by amide bonds. 2  A protein is one or more polypeptide (more than about 50 amino acids long). 3  An oligopeptide consists of only a few amino acids (between two and twenty).onribosomal peptides are assembled by enzymes that are specific to each peptide, rather than by the ribosome. The most common non-ribosomal peptide is glutathione, which is a component of the antioxidant defenses of most aerobic organisms.
POLY (ADP-RIBOSE) POLYMERASE-1. Poly (ADP-ribose) polymerase-1 (PARP-1) is a nuclear DNA binding protein that participates in the DNA base excision repair pathway in response to genotoxic stress in mammalian cells. In macrophages isolated from PARP knock-out (PARP â/â) mice, LPS-induced iNOS expression was reduced.