Asymmetric Unit (4, 4)
No. | Name | Evidence | Residues | Description |
1 | AC1 | SOFTWARE | ARG A:1 , ASN A:5 , LYS A:15 , GLU A:56 , HOH A:103 , HOH A:112 , HOH A:127 | BINDING SITE FOR RESIDUE SO4 A 63 |
2 | CMR | AUTHOR | CYS A:3 , PHE A:4 , CYS A:17 , CYS A:24 , TYR A:25 , GLY A:40 , CYS A:41 , GLY A:42 , CYS A:43 , CYS A:54 , CYS A:55 , CYS A:60 , ASN A:61 | RESIDUES, INCLUDING FOUR CYSTINE LINKAGES, WHICH AID IN MAINTAINING THE UNIQUE TOXIN FOLD CONFORMATION |
3 | FNR | AUTHOR | LYS A:27 , TRP A:29 , ARG A:33 , LYS A:47 | RESIDUES IN THE REACTIVE SITE SHOWN CHEMICALLY TO BIND DIRECTLY TO RECEPTOR |
4 | RCT | AUTHOR | TYR A:25 , LYS A:27 , TRP A:29 , ASP A:31 , PHE A:32 , ARG A:33 , GLY A:34 , ILE A:36 , GLU A:38 , GLY A:40 , CYS A:41 , GLY A:42 , CYS A:43 , PRO A:44 , VAL A:46 , LYS A:47 , GLY A:49 , ILE A:50 , LEU A:52 , CYS A:54 | THE SERIES INVARIANT RESIDUES OF THE REACTIVE SITE. FIVE OF THESE RESIDUES (PHE 32, ILE 36, GLU 38, ILE 50, LEU 52) ARE TYPE-CONSERVED THROUGHOUT THE SERIES. THE ENUMERATION IS FOR A 62-RESIDUE TOXIN |
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