Amino Acid Sequence of the Small Subunit of Ribulose-1,5-Bisphosphate Carboxylase from Spinach

Abstract

The complete amino acid sequence of the small subunit of ribulosebisphosphate carboxylase from spinach has been determined. There are 120 amino acids. The N-terminus of the protein is frequently blocked. There is a tyrosine-proline substitution at position 91 and the average molecular weight of the two forms is 13 897. The interest of the sequence data for students of physiology and evolution is discussed.