>2D1X_1|Chains A, B, C, D|cortactin isoform a|Homo sapiens (9606) GPLGSENDLGITAVALYDYQAAGDDEISFDPDDIITNIEMIDDGWWRGVCKGRYGLFPANYVELRQ >2D1X_2|Chains E[auth P], F[auth Q]|proline rich region from development and differentiation enhancing factor 1|null SKKRPPPPPPGHKRT