>6z1v_B mol:protein length:142 Nanobody 4E8 EVQLVESGGRLVRTGGSLRLSCAASGRTFSNYVMGWFRQAPGKEREVVAAITWSGDITW HADFVKGRFTISRDNAKNTVYLQMNSLKPEDTAVYYCAATERWGLRAPADWGSWGQGTQ VTVSSHGSGLVPRGSGGGHHHHHH