>3S1K_1|Chains A, B|Z-domain|null VDNKFNKEMHNAYAIEIALLPNLNDQQFHAFIWSLIDDPSQSANLLAEAKKLNDAQAPK >3S1K_2|Chains C[auth V], D[auth W]|Vascular endothelial growth factor A|Homo sapiens (9606) GQNHHEVVKFMDVYQRSYCHPIETLVDIFQEYPDEIEYIFKPSCVPLMRCGGCCNDEGLECVPTEESNITMQIMRIKPHQGQHIGEMSFLQHNKCECRPKKD