>6Z1V_1|Chain A|CD9 antigen|Homo sapiens (9606)
GSKDEVIKEVQEFYKDTYNKLKTKDEPQRETLKAIHYALNCCGLAGGVEQFISDICPKKDVLETFTVKSCPDAIKEVFDNAAAHHHHHH
>6Z1V_2|Chain B|Nanobody 4E8|Lama glama (9844)
EVQLVESGGRLVRTGGSLRLSCAASGRTFSNYVMGWFRQAPGKEREVVAAITWSGDITWHADFVKGRFTISRDNAKNTVYLQMNSLKPEDTAVYYCAATERWGLRAPADWGSWGQGTQVTVSSHGSGLVPRGSGGGHHHHHH