eF-site ID 1qae-B PDB Code 1qae Chain B click to enlarge Title THE ACTIVE SITE OF SERRATIA ENDONUCLEASE CONTAINS A CONSERVED MAGNESIUM-WATER CLUSTER Classification ENDONUCLEASE Compound PROTEIN (EXTRACELLULAR ENDONUCLEASE) Source Serratia marcescens (NUCA_SERMA) Sequence B:  IDNCAVGCPTGGSSNVSIVRHAYTLNNNSTTKFANWVAYH ITKDTPASGKTRNWKTDPALNPADTLAPADYTGANAALKV DRGHQAPLASLAGVSDWESLNYLSNITPQKSDLNQGAWAR LEDQERKLIDRADISSVYTVTGPLYERDMGKLPGTQKAHT IPSAYWKVIFINNSPAVNHYAAFLFDQNTPKGADFCQFRV TVDEIEKRTGLIIWAGLPDDVQASLKSKPGVLPELMGCKN Description Functional site 1) chain B residue 89 type sequence H description ACTIVE SITE REGION IN MONOMER B WITH CATALYTIC MAGNESIUM WATER CLUSTER source : ASB 2) chain B residue 127 type sequence E description ACTIVE SITE REGION IN MONOMER B WITH CATALYTIC MAGNESIUM WATER CLUSTER source : ASB 3) chain B residue 119 type sequence N description ACTIVE SITE REGION IN MONOMER B WITH CATALYTIC MAGNESIUM WATER CLUSTER source : ASB 4) chain B residue 119 type sequence N description BINDING SITE FOR RESIDUE MG B 251 source : AC2 5) chain B residue 57 type catalytic sequence R description 42 source MCSA : MCSA2 6) chain B residue 89 type catalytic sequence H description 42 source MCSA : MCSA2 7) chain B residue 110 type catalytic sequence N description 42 source MCSA : MCSA2 8) chain B residue 119 type catalytic sequence N description 42 source MCSA : MCSA2 9) chain B residue 127 type catalytic sequence E description 42 source MCSA : MCSA2 10) 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 11) chain B residue 119 type BINDING sequence N description source Swiss-Prot : SWS_FT_FI2

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