Multiple Assemblies exist for SMTL entry 1kn4
CATALYTIC ANTIBODY D2.3 COMPLEX; X-RAY DIFFRACTION 1.90 Å

	SMTL ID 1kn4.1 Ligands ZINC ION; PARA-NITROPHENYL PHOSPHONOBUTANOYL D-ALANINE Polypeptides IG ANTIBODY D2.3 (LIGHT CHAIN); IG ANTIBODY D2.3 (HEAVY CHAIN) Oligo-state hetero-1-1-mer
	SMTL ID 1kn4.2 Ligands ZINC ION; PARA-NITROPHENYL PHOSPHONOBUTANOYL D-ALANINE Polypeptides IG ANTIBODY D2.3 (LIGHT CHAIN); IG ANTIBODY D2.3 (HEAVY CHAIN) Oligo-state hetero-2-2-mer
	SMTL ID 1kn4.3 Ligands ZINC ION; PARA-NITROPHENYL PHOSPHONOBUTANOYL D-ALANINE Polypeptides IG ANTIBODY D2.3 (LIGHT CHAIN); IG ANTIBODY D2.3 (HEAVY CHAIN) Oligo-state hetero-2-2-mer
	SMTL ID 1kn4.4 Ligands ZINC ION; PARA-NITROPHENYL PHOSPHONOBUTANOYL D-ALANINE Polypeptides IG ANTIBODY D2.3 (LIGHT CHAIN); IG ANTIBODY D2.3 (HEAVY CHAIN) Oligo-state hetero-1-1-mer