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  • Title: Structural studies on the coat protein of alfalfa mosaic virus. The complete primary structure.
    Author: van Beynum GM, de Graaf JM, Castel A, Kraal B, Bosch L.
    Journal: Eur J Biochem; 1977 Jan 03; 72(1):63-78. PubMed ID: 836394.
    Abstract:
    The complete amino acid sequence of the coat protein of alfalfa mosaic virus (strain 425) is reported. Sequence determinations were mainly performed on peptides obtained from fragmentation by cyanogen bromide and trypsin. Both manual and automatic sequence methods were used. Some refinements of the solid-phase Edman degradation were introduced. The final alignment of the peptides was established by means of alternative cleavage methods, such as limited tryptic digestion of intact virus particles, tryptic digestion after blockage of lysine residues and chymotryptic digestion. The coat protein consists of 220 amino acid residues corresponding to a molecular weight of 24252. A remarkable clustering of basic residues occurs in the N-terminal part of the protein chain. Several internal hydrophobic clusters and a strongly acidic site at the C-terminus can be observed. Two regions of sequence homology (12 residues) were found. Some features of the secondary structure are predicted.
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