eF-site ID 1smn-B PDB Code 1smn Chain B click to enlarge Title IDENTIFICATION OF THE SERRATIA ENDONUCLEASE DIMER: STRUCTURAL BASIS AND IMPLICATIONS FOR CATALYSIS Classification ENDONUCLEASE Compound EXTRACELLULAR ENDONUCLEASE Source null (NUCA_SERMA) Sequence B:  SIDNCAVGCPTGGSSNVSIVRHAYTLNNNSTTKFANWVAY HITKDTPASGKTRNWKTDPALNPADTLAPADYTGANAALK VDRGHQAPLASLAGVSDWESLNYLSNITPQKSDLNQGAWA RLEDQERKLIDRADISSVYTVTGPLYERDMGKLPGTQKAH TIPSAYWKVIFINNSPAVNHYAAFLFDQNTPKGADFCQFR VTVDEIEKRTGLIIWAGLPDDVQASLKSKPGVLPELMGCK N Description (1)  EXTRACELLULAR ENDONUCLEASE Functional site 1) chain B residue 89 type sequence H description PUTATIVE ACTIVE SITE REGION IN MONOMER B source : ASB 2) chain B residue 127 type sequence E description PUTATIVE ACTIVE SITE REGION IN MONOMER B source : ASB 3) chain B residue 136 type sequence R description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 4) chain B residue 138 type sequence D description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 5) chain B residue 178 type sequence N description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 6) chain B residue 180 type sequence P description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 7) chain B residue 181 type sequence A description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 8) chain B residue 182 type sequence V description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 9) chain B residue 183 type sequence N description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 10) chain B residue 184 type sequence H description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 11) chain B residue 225 type sequence D description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 12) chain B residue 229 type sequence S description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 13) chain B residue 233 type sequence K description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 14) chain B residue 236 type sequence V description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 15) chain B residue 239 type sequence E description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 16) chain B residue 240 type sequence L description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 17) chain B residue 245 type sequence N description RESIDUES IN THE PHYSIOLOGICAL DIMER INTERFACE source : INT 18) chain B residue 89 type ACT_SITE sequence H description Proton acceptor => ECO:0000255|PROSITE-ProRule:PRU10047, ECO:0000269|PubMed:8078761 source Swiss-Prot : SWS_FT_FI1 19) chain B residue 57 type catalytic sequence R description 42 source MCSA : MCSA2 20) chain B residue 89 type catalytic sequence H description 42 source MCSA : MCSA2 21) chain B residue 110 type catalytic sequence N description 42 source MCSA : MCSA2 22) chain B residue 119 type catalytic sequence N description 42 source MCSA : MCSA2 23) chain B residue 127 type catalytic sequence E description 42 source MCSA : MCSA2 24) chain B residue 119 type BINDING sequence N description source Swiss-Prot : SWS_FT_FI2

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