HEADER MERCURY DETOXIFICATION 07-MAR-97 1AFI TITLE STRUCTURE OF THE REDUCED FORM OF MERP, THE PERIPLASMIC PROTEIN FROM TITLE 2 THE BACTERIAL MERCURY DETOXIFICATION SYSTEM, NMR, 20 STRUCTURES COMPND MOL_ID: 1; COMPND 2 MOLECULE: MERP; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: MERCURIC TRANSPORT PROTEIN; COMPND 5 ENGINEERED: YES; COMPND 6 OTHER_DETAILS: THE PROTEIN STUDIED EXCLUDES THE PRECURSOR SIGNAL COMPND 7 SEQUENCE. THIS IS THE NATIVE FORM OF THE PROTEIN AFTER CELL COMPND 8 PROCESSING. SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SHIGELLA FLEXNERI; SOURCE 3 ORGANISM_TAXID: 623; SOURCE 4 CELLULAR_LOCATION: PERIPLASM; SOURCE 5 GENE: MERP; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: MALTOSE BINDING PROTEIN; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PSSS; SOURCE 11 EXPRESSION_SYSTEM_GENE: MERP; SOURCE 12 OTHER_DETAILS: MER GENES LOCATED ON TRANSPOSON TN21 KEYWDS MERCURY DETOXIFICATION, PERIPLASMIC, HEAVY METAL TRANSPORT, ALPHA- KEYWDS 2 BETA SANDWICH EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR R.A.STEELE,S.J.OPELLA REVDAT 3 16-FEB-22 1AFI 1 REMARK REVDAT 2 24-FEB-09 1AFI 1 VERSN REVDAT 1 23-JUL-97 1AFI 0 JRNL AUTH R.A.STEELE,S.J.OPELLA JRNL TITL STRUCTURES OF THE REDUCED AND MERCURY-BOUND FORMS OF MERP, JRNL TITL 2 THE PERIPLASMIC PROTEIN FROM THE BACTERIAL MERCURY JRNL TITL 3 DETOXIFICATION SYSTEM. JRNL REF BIOCHEMISTRY V. 36 6885 1997 JRNL REFN ISSN 0006-2960 JRNL PMID 9188683 JRNL DOI 10.1021/BI9631632 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REFINEMENT DETAILS CAN BE FOUND IN THE REMARK 3 JRNL CITATION ABOVE. IN SUMMARY, INITIAL CALCULATIONS WERE REMARK 3 STARTED FROM A LINEAR POLYPEPTIDE TEMPLATE WITH RANDOM BACKBONE REMARK 3 ANGLES. AN ITERATIVE REFINEMENT WAS EMPLOYED USING ADDITIONAL REMARK 3 RESTRAINTS AS THE QUALITY OF THE STRUCTURES IMPROVED AND REMARK 3 AMBIGUITIES IN THE DATA WERE RESOLVED. REMARK 4 REMARK 4 1AFI COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000170752. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 300 REMARK 210 PH : 6.5 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : NULL REMARK 210 SAMPLE CONTENTS : NULL REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : HMQC-NOESY; HMQC-TOCSY; HNCA; REMARK 210 HNCOCA; CBCACONH REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ; 600 MHZ; 750 MHZ REMARK 210 SPECTROMETER MODEL : DMX500; DMX600; DMX750 REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : X-PLOR REMARK 210 METHOD USED : DISTANCE GEOMETRY SIMULATED REMARK 210 ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 80 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : LOWEST ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL REMARK 210 REMARK 210 REMARK: NULL REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 1 THR A 2 88.76 -152.62 REMARK 500 1 PRO A 10 39.94 -78.10 REMARK 500 1 MET A 12 62.11 33.12 REMARK 500 1 CYS A 14 90.06 70.31 REMARK 500 1 ALA A 16 -40.69 -131.44 REMARK 500 1 GLU A 29 -77.37 175.44 REMARK 500 1 LYS A 40 30.65 -150.29 REMARK 500 1 PHE A 47 -177.20 -172.11 REMARK 500 1 SER A 53 171.87 170.76 REMARK 500 1 PRO A 67 95.54 -65.72 REMARK 500 2 THR A 2 88.28 -151.80 REMARK 500 2 MET A 12 61.47 29.64 REMARK 500 2 CYS A 14 91.82 69.76 REMARK 500 2 ALA A 15 16.83 59.53 REMARK 500 2 GLU A 29 -86.91 179.25 REMARK 500 2 ARG A 41 60.19 38.75 REMARK 500 2 PHE A 47 -176.33 -171.88 REMARK 500 2 SER A 53 172.58 171.20 REMARK 500 2 PRO A 67 99.43 -55.49 REMARK 500 3 MET A 12 -79.57 69.04 REMARK 500 3 THR A 13 14.39 50.86 REMARK 500 3 CYS A 14 108.41 51.25 REMARK 500 3 ALA A 16 -37.68 -139.01 REMARK 500 3 GLU A 29 -77.58 176.41 REMARK 500 3 PHE A 47 -174.84 -171.54 REMARK 500 3 SER A 53 170.53 170.32 REMARK 500 3 PRO A 67 96.65 -59.85 REMARK 500 3 SER A 68 -167.10 -108.10 REMARK 500 4 MET A 12 -85.42 59.15 REMARK 500 4 THR A 13 14.05 50.32 REMARK 500 4 CYS A 14 109.15 54.48 REMARK 500 4 ALA A 15 26.27 39.99 REMARK 500 4 VAL A 28 -83.68 -41.76 REMARK 500 4 GLU A 29 -52.77 179.36 REMARK 500 4 LYS A 40 47.21 -152.43 REMARK 500 4 ARG A 41 63.16 39.91 REMARK 500 4 SER A 53 168.62 175.81 REMARK 500 4 PRO A 67 96.37 -60.00 REMARK 500 4 SER A 68 -168.42 -108.85 REMARK 500 5 THR A 2 89.89 -152.63 REMARK 500 5 PRO A 10 35.24 -76.82 REMARK 500 5 CYS A 14 97.06 77.32 REMARK 500 5 ALA A 16 -29.61 -162.45 REMARK 500 5 GLU A 29 -85.58 163.31 REMARK 500 5 LYS A 33 107.53 -176.02 REMARK 500 5 PHE A 47 -178.43 -170.59 REMARK 500 5 SER A 53 160.62 176.21 REMARK 500 5 PRO A 67 99.57 -55.51 REMARK 500 6 PRO A 10 32.48 -75.71 REMARK 500 6 CYS A 14 98.40 89.93 REMARK 500 REMARK 500 THIS ENTRY HAS 212 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: HMA REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: MERCURY BINDING CYS RESIDUES ARE CONTAINED IN REMARK 800 THE GMTCAAC HEAVY METAL BINDING REGION (HMA). DBREF 1AFI A 1 72 UNP P04129 MERP_SHIFL 20 91 SEQRES 1 A 72 ALA THR GLN THR VAL THR LEU ALA VAL PRO GLY MET THR SEQRES 2 A 72 CYS ALA ALA CYS PRO ILE THR VAL LYS LYS ALA LEU SER SEQRES 3 A 72 LYS VAL GLU GLY VAL SER LYS VAL ASP VAL GLY PHE GLU SEQRES 4 A 72 LYS ARG GLU ALA VAL VAL THR PHE ASP ASP THR LYS ALA SEQRES 5 A 72 SER VAL GLN LYS LEU THR LYS ALA THR ALA ASP ALA GLY SEQRES 6 A 72 TYR PRO SER SER VAL LYS GLN HELIX 1 1 CYS A 17 LYS A 27 1 11 HELIX 2 2 VAL A 54 ALA A 64 1 11 SHEET 1 A 4 SER A 69 VAL A 70 0 SHEET 2 A 4 GLN A 3 VAL A 9 -1 N ALA A 8 O SER A 69 SHEET 3 A 4 GLU A 42 PHE A 47 -1 N PHE A 47 O GLN A 3 SHEET 4 A 4 VAL A 31 GLY A 37 -1 N GLY A 37 O GLU A 42 SITE 1 HMA 2 CYS A 14 CYS A 17 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MODEL 1