cDNA and protein sequence of a major pea seed albumin (PA 2 : Mr≈26 000)

Autor: Higgins, Thomas J. V., Beach, Larry R., Spencer, Donald, Chandler, Peter M., Randall, Peter J., Blagrove, Robert J., Kortt, Alexander A., Guthrie, Robin E.
Zdroj: Plant Molecular Biology; January 1987, Vol. 8 Issue: 1 p37-45, 9p
Abstrakt: Pea albumin 2 (PA2:Mr˜26000) is a major component of the albumin fraction derived from aqueous salt extracts of pea seed. Sodium dodecylsulfate-polyacrylamide gel electrophoresis and chromatography on DEAE-Sephacel resolve PA2 into two closely related components (PA2a and PA2b). A cDNA clone coding for one of these components has been sequenced and the deduced amino acid sequence compared with partial, chemically-determined sequences for cyanogen bromide peptides from both PA2 components. Complete amino acid sequences were obtained for the C-terminal peptides. The PA2 molecule of 230 amino acids contains four imperfect repeat sequences each of approximately 57 amino acids in length.
Databáze: Supplemental Index