eF-site ID 6e13-A PDB Code 6e13 Chain A click to enlarge Title Pseudomonas putida PqqB with a non-physiological zinc at the active site binds the substrate mimic, 5-cysteinyl-3,4-dihydroxyphenylalanine (5-Cys-DOPA), non-specifically but supports the proposed function of the enzyme in pyrroloquinoline quinone biosynthesis. Classification OXIDOREDUCTASE Compound Coenzyme PQQ synthesis protein B Source (PQQB_PSEPK) Sequence A:  MMYIQVLGSAAAGGFPQWNCNCVNCKGYRDGTLKATARTQ SSIALSDDGVHWILCNASPDIRAQLQAFAPMQPARALRDT GINAIVLLDSQIDHTTGLLSLREGCPHQVWCTDMVHQDLT TGFPLFNMLSHWNGGLQWNRIELEGSFVIDACPNLKFTPF PLRSAAPPYSPHRFDPHPGDNLGLMVEDTRTGGKLFYAPG LGQVDEKLLAMMHGADCLLVDGTLWEDDEMQRRGVGTRTG REMGHLAQNGPGGTLEVLDGFPRQRKVLIHINNTNPILDE NSPERAEVLRRGVEVAFDGMSIELLEHH Description Functional site 1) chain A residue 19 type sequence C description binding site for residue ZN A 401 source : AC1 2) chain A residue 21 type sequence C description binding site for residue ZN A 401 source : AC1 3) chain A residue 24 type sequence C description binding site for residue ZN A 401 source : AC1 4) chain A residue 272 type sequence N description binding site for residue ZN A 401 source : AC1 5) chain A residue 93 type sequence H description binding site for residue ZN A 402 source : AC2 6) chain A residue 269 type sequence H description binding site for residue ZN A 402 source : AC2 7) chain A residue 90 type sequence Q description binding site for residue CL A 403 source : AC3 8) chain A residue 91 type sequence I description binding site for residue CL A 403 source : AC3 9) chain A residue 166 type sequence P description binding site for residue CL A 403 source : AC3 10) chain A residue 10 type sequence A description binding site for residue HKS A 404 source : AC4 11) chain A residue 11 type sequence A description binding site for residue HKS A 404 source : AC4 12) chain A residue 16 type sequence Q description binding site for residue HKS A 404 source : AC4 13) chain A residue 77 type sequence R description binding site for residue HKS A 404 source : AC4 14) chain A residue 90 type sequence Q description binding site for residue HKS A 404 source : AC4 15) chain A residue 92 type sequence D description binding site for residue HKS A 404 source : AC4 16) chain A residue 101 type sequence R description binding site for residue HKS A 404 source : AC4 17) chain A residue 131 type sequence W description binding site for residue HKS A 404 source : AC4 18) chain A residue 167 type sequence P description binding site for residue HKS A 404 source : AC4 19) chain A residue 229 type sequence M description binding site for residue HKS A 404 source : AC4 20) chain A residue 269 type sequence H description binding site for residue HKS A 404 source : AC4 21) chain A residue 271 type sequence N description binding site for residue HKS A 404 source : AC4 22) chain A residue 272 type sequence N description binding site for residue HKS A 404 source : AC4

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