The results confirm that the functionally important residues are located within the carboxyl terminal segment, -Ile-Arg-Pro-Val-Gly-Arg-Phe-NH2.
2
This sequence occurs as -Gly-Gly-Ala-Gly-Val-Gly-Lys- in the beta-subunit of the enzyme F1-ATPase, where it is thought to form part of the catalytic nucleotide-binding domain.