eF-site ID 3bd4-AB PDB Code 3bd4 Chain A, B click to enlarge Title Crystal structure of single domain VL of an anti-DNA binding antibody 3D8 scFv and its active site revealed by complex structures of a small molecule and metals Classification IMMUNE SYSTEM Compound catalytic antibody Source (3BD4) Sequence A:  LVMSQSPSSLAVSAGEKVTMSCKSSQSLFNSRTRKNYLAW YQQKPGQSPKLLIYWASTRESGVPDRFTGSGSGTDFTLTI SSVQAEDLAVYYCKQSYYHMYTFGSGTKLEIK B:  LVMSQSPSSLAVSAGEKVTMSCKSSQSLFNSRTRKNYLAW YQQKPGQSPKLLIYWASTRESGVPDRFTGSGSGTDFTLTI SSVQAEDLAVYYCKQSYTFGSGTKLEIK Description Functional site 1) chain B residue 255 type sequence S description BINDING SITE FOR RESIDUE CD B 1 source : AC1 2) chain A residue 197 type sequence L description BINDING SITE FOR RESIDUE CD A 2 source : AC2 3) chain A residue 214 type sequence W description BINDING SITE FOR RESIDUE CD A 2 source : AC2 4) chain A residue 255 type sequence S description BINDING SITE FOR RESIDUE CD A 2 source : AC2 5) chain A residue 200 type sequence Y description BINDING SITE FOR RESIDUE BTB A 1 source : AC3 6) chain A residue 210 type sequence L description BINDING SITE FOR RESIDUE BTB A 1 source : AC3 7) chain A residue 213 type sequence Y description BINDING SITE FOR RESIDUE BTB A 1 source : AC3 8) chain A residue 214 type sequence W description BINDING SITE FOR RESIDUE BTB A 1 source : AC3 9) chain A residue 219 type sequence E description BINDING SITE FOR RESIDUE BTB A 1 source : AC3 10) chain A residue 253 type sequence K description BINDING SITE FOR RESIDUE BTB A 1 source : AC3 11) chain A residue 255 type sequence S description BINDING SITE FOR RESIDUE BTB A 1 source : AC3 12) chain A residue 260 type sequence Y description BINDING SITE FOR RESIDUE BTB A 1 source : AC3

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