>1cka_A mol:protein length:57 C-CRK N-TERMINAL SH3 DOMAIN
AEYVRALFDFNGNDEEDLPFKKGDILRIRDKPEEQWWNAEDSEGKRGMIPVPYVEKY
>1cka_B mol:protein length:10 C3G PEPTIDE (PRO-PRO-PRO-ALA-LEU-PRO-PRO-LYS-LYS-ARG)
PPPALPPKKR