HEADER TRANSPORT PROTEIN 27-OCT-06 2NPD TITLE AN UNUSUAL TWIN-HIS ARRANGEMENT IN THE PORE OF AMMONIA CHANNELS IS TITLE 2 ESSENTIAL FOR SUBSTRATE CONDUCTANCE COMPND MOL_ID: 1; COMPND 2 MOLECULE: AMMONIA CHANNEL; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: AMMONIA TRANSPORTER; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: AMTB; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: C43 (DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET22B-AMTBH168F KEYWDS MEMBRANE PROTEIN, AMMONIA TRANSPORT, HISTIDINE MUTANT, AMTB, KEYWDS 2 TRANSPORT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR D.LUPO,F.K.WINKLER REVDAT 7 25-OCT-23 2NPD 1 REMARK REVDAT 6 10-NOV-21 2NPD 1 REMARK SEQADV REVDAT 5 18-OCT-17 2NPD 1 REMARK REVDAT 4 13-JUL-11 2NPD 1 VERSN REVDAT 3 24-FEB-09 2NPD 1 VERSN REVDAT 2 16-JAN-07 2NPD 1 JRNL REVDAT 1 14-NOV-06 2NPD 0 JRNL AUTH A.JAVELLE,D.LUPO,L.ZHENG,X.-D.LI,F.K.WINKLER,M.MERRICK JRNL TITL AN UNUSUAL TWIN-HIS ARRANGEMENT IN THE PORE OF AMMONIA JRNL TITL 2 CHANNELS IS ESSENTIAL FOR SUBSTRATE CONDUCTANCE JRNL REF J.BIOL.CHEM. V. 281 39492 2006 JRNL REFN ISSN 0021-9258 JRNL PMID 17040913 JRNL DOI 10.1074/JBC.M608325200 REMARK 2 REMARK 2 RESOLUTION. 2.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 3 NUMBER OF REFLECTIONS : 31547 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.173 REMARK 3 R VALUE (WORKING SET) : 0.172 REMARK 3 FREE R VALUE : 0.198 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1683 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.10 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.15 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2280 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.59 REMARK 3 BIN R VALUE (WORKING SET) : 0.2620 REMARK 3 BIN FREE R VALUE SET COUNT : 138 REMARK 3 BIN FREE R VALUE : 0.3240 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2685 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 9 REMARK 3 SOLVENT ATOMS : 40 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 46.93 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.55000 REMARK 3 B22 (A**2) : 2.55000 REMARK 3 B33 (A**2) : -3.82000 REMARK 3 B12 (A**2) : 1.27000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.134 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.124 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.110 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 9.351 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.970 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.955 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2744 ; 0.013 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3739 ; 1.526 ; 1.944 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 365 ; 1.819 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 82 ;28.602 ;22.805 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 393 ;14.760 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 6 ;21.620 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 452 ; 0.118 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2361 ; 0.009 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1512 ; 0.217 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 2006 ; 0.322 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 109 ; 0.119 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 70 ; 0.168 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 2 ; 0.105 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 1824 ; 1.509 ; 2.000 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2846 ; 2.342 ; 3.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1064 ; 3.554 ; 4.500 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 893 ; 4.923 ; 6.000 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.00 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 2NPD COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 31-OCT-06. REMARK 100 THE DEPOSITION ID IS D_1000040139. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-NOV-05 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 4.60 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SLS REMARK 200 BEAMLINE : X06SA REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.98017 REMARK 200 MONOCHROMATOR : SI 111 CHANNEL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 225 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 33268 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.06900 REMARK 200 FOR THE DATA SET : 14.8600 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.20 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.56400 REMARK 200 FOR SHELL : 3.550 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: PDB ENTRY 1XQF REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 62.77 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.30 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 30% PEG 550, 0.1M SODIUM ACETATE, 0.2M REMARK 280 AMMONIUM SULFATE, PH 4.6, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 298K, PH 4.60 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 63 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+1/2 REMARK 290 6555 X-Y,X,Z+1/2 REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 42.20200 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 42.20200 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 42.20200 REMARK 290 REMARK 290 REMARK: NULL 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 11260 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 32990 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -124.0 KCAL/MOL 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 350 BIOMT1 2 -0.500000 -0.866025 0.000000 109.30500 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 -0.500000 0.866025 0.000000 54.65250 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 94.66091 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 ALA A 1 REMARK 465 PRO A 2 REMARK 465 ILE A 182 REMARK 465 GLY A 183 REMARK 465 LYS A 184 REMARK 465 ARG A 185 REMARK 465 VAL A 186 REMARK 465 GLY A 187 REMARK 465 PHE A 188 REMARK 465 GLY A 189 REMARK 465 LYS A 190 REMARK 465 GLU A 191 REMARK 465 ALA A 192 REMARK 465 PHE A 193 REMARK 465 LYS A 194 REMARK 465 LEU A 306 REMARK 465 ARG A 307 REMARK 465 VAL A 308 REMARK 465 GLU A 387 REMARK 465 GLU A 388 REMARK 465 GLN A 389 REMARK 465 GLU A 390 REMARK 465 ARG A 391 REMARK 465 GLU A 392 REMARK 465 GLY A 393 REMARK 465 LEU A 394 REMARK 465 ASP A 395 REMARK 465 VAL A 396 REMARK 465 ASN A 397 REMARK 465 SER A 398 REMARK 465 HIS A 399 REMARK 465 GLY A 400 REMARK 465 GLU A 401 REMARK 465 ASN A 402 REMARK 465 ALA A 403 REMARK 465 TYR A 404 REMARK 465 ASN A 405 REMARK 465 ALA A 406 REMARK 465 ASP A 407 REMARK 465 GLN A 408 REMARK 465 ALA A 409 REMARK 465 GLN A 410 REMARK 465 GLN A 411 REMARK 465 PRO A 412 REMARK 465 ALA A 413 REMARK 465 GLN A 414 REMARK 465 ALA A 415 REMARK 465 ASP A 416 REMARK 465 LEU A 417 REMARK 465 GLU A 418 REMARK 465 HIS A 419 REMARK 465 HIS A 420 REMARK 465 HIS A 421 REMARK 465 HIS A 422 REMARK 465 HIS A 423 REMARK 465 HIS A 424 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 TYR A 62 -16.51 -142.85 REMARK 500 ASN A 72 -155.82 -123.10 REMARK 500 SER A 139 -58.74 -122.02 REMARK 500 ASP A 160 88.60 -161.11 REMARK 500 VAL A 167 -66.86 -93.99 REMARK 500 ASN A 224 -161.17 -115.51 REMARK 500 ASP A 310 -73.15 -26.89 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 601 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IMD A 701 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1XQF RELATED DB: PDB REMARK 900 WILD-TYPE AMTB IN THE PRESENCE OF MAGNESIUM REMARK 900 RELATED ID: 1XQE RELATED DB: PDB REMARK 900 WILD-TYPE AMTB IN THE PRESENCE OF AMMONIUM SPACE GROUP R3 REMARK 900 RELATED ID: 1U7G RELATED DB: PDB REMARK 900 TRIPLE MUTANT OF AMTB REMARK 900 RELATED ID: 2NMR RELATED DB: PDB REMARK 900 AMTB(WILD-TYPE) IN THE PRESENCE OF AMMONIUM SPACE GROUP P63 REMARK 900 RELATED ID: 2NOP RELATED DB: PDB REMARK 900 AMTB(WILD-TYPE) IN THE PRESENCE OF AMMONIUM SPACE GROUP P63 WITH REMARK 900 IMIDAZOLE REMARK 900 RELATED ID: 2NOW RELATED DB: PDB REMARK 900 AMTB(H168E) IN THE PRESENCE OF AMMONIUM SPACE GROUP P63 REMARK 900 RELATED ID: 2NPC RELATED DB: PDB REMARK 900 AMTB(H168A) IN THE PRESENCE OF AMMONIUM SPACE GROUP P63 WITH REMARK 900 IMIDAZOLE REMARK 900 RELATED ID: 2NPE RELATED DB: PDB REMARK 900 AMTB(H318A) SPACE GROUP P63 REMARK 900 RELATED ID: 2NPG RELATED DB: PDB REMARK 900 AMTB(H318F) IN THE PRESENCE OF AMMONIUM SPACE GROUP P63 REMARK 900 RELATED ID: 2NPJ RELATED DB: PDB REMARK 900 AMTB(H318F) IN THE PRESENCE OF AMMONIUM SPACE GROUP P63 WITH REMARK 900 IMIDAZOLE REMARK 900 RELATED ID: 2NPK RELATED DB: PDB REMARK 900 AMTB(H168A/H318A) IN THE PRESENCE OF AMMONIUM SPACE GROUP P63 WITH REMARK 900 IMIDAZOLE DBREF 2NPD A 1 406 UNP P69681 AMTB_ECOLI 23 428 SEQADV 2NPD PHE A 168 UNP P69681 HIS 190 ENGINEERED MUTATION SEQADV 2NPD ASP A 407 UNP P69681 EXPRESSION TAG SEQADV 2NPD GLN A 408 UNP P69681 EXPRESSION TAG SEQADV 2NPD ALA A 409 UNP P69681 EXPRESSION TAG SEQADV 2NPD GLN A 410 UNP P69681 EXPRESSION TAG SEQADV 2NPD GLN A 411 UNP P69681 EXPRESSION TAG SEQADV 2NPD PRO A 412 UNP P69681 EXPRESSION TAG SEQADV 2NPD ALA A 413 UNP P69681 EXPRESSION TAG SEQADV 2NPD GLN A 414 UNP P69681 EXPRESSION TAG SEQADV 2NPD ALA A 415 UNP P69681 EXPRESSION TAG SEQADV 2NPD ASP A 416 UNP P69681 EXPRESSION TAG SEQADV 2NPD LEU A 417 UNP P69681 EXPRESSION TAG SEQADV 2NPD GLU A 418 UNP P69681 EXPRESSION TAG SEQADV 2NPD HIS A 419 UNP P69681 EXPRESSION TAG SEQADV 2NPD HIS A 420 UNP P69681 EXPRESSION TAG SEQADV 2NPD HIS A 421 UNP P69681 EXPRESSION TAG SEQADV 2NPD HIS A 422 UNP P69681 EXPRESSION TAG SEQADV 2NPD HIS A 423 UNP P69681 EXPRESSION TAG SEQADV 2NPD HIS A 424 UNP P69681 EXPRESSION TAG SEQRES 1 A 424 ALA PRO ALA VAL ALA ASP LYS ALA ASP ASN ALA PHE MET SEQRES 2 A 424 MET ILE CYS THR ALA LEU VAL LEU PHE MET THR ILE PRO SEQRES 3 A 424 GLY ILE ALA LEU PHE TYR GLY GLY LEU ILE ARG GLY LYS SEQRES 4 A 424 ASN VAL LEU SER MET LEU THR GLN VAL THR VAL THR PHE SEQRES 5 A 424 ALA LEU VAL CYS ILE LEU TRP VAL VAL TYR GLY TYR SER SEQRES 6 A 424 LEU ALA PHE GLY GLU GLY ASN ASN PHE PHE GLY ASN ILE SEQRES 7 A 424 ASN TRP LEU MET LEU LYS ASN ILE GLU LEU THR ALA VAL SEQRES 8 A 424 MET GLY SER ILE TYR GLN TYR ILE HIS VAL ALA PHE GLN SEQRES 9 A 424 GLY SER PHE ALA CYS ILE THR VAL GLY LEU ILE VAL GLY SEQRES 10 A 424 ALA LEU ALA GLU ARG ILE ARG PHE SER ALA VAL LEU ILE SEQRES 11 A 424 PHE VAL VAL VAL TRP LEU THR LEU SER TYR ILE PRO ILE SEQRES 12 A 424 ALA HIS MET VAL TRP GLY GLY GLY LEU LEU ALA SER HIS SEQRES 13 A 424 GLY ALA LEU ASP PHE ALA GLY GLY THR VAL VAL PHE ILE SEQRES 14 A 424 ASN ALA ALA ILE ALA GLY LEU VAL GLY ALA TYR LEU ILE SEQRES 15 A 424 GLY LYS ARG VAL GLY PHE GLY LYS GLU ALA PHE LYS PRO SEQRES 16 A 424 HIS ASN LEU PRO MET VAL PHE THR GLY THR ALA ILE LEU SEQRES 17 A 424 TYR ILE GLY TRP PHE GLY PHE ASN ALA GLY SER ALA GLY SEQRES 18 A 424 THR ALA ASN GLU ILE ALA ALA LEU ALA PHE VAL ASN THR SEQRES 19 A 424 VAL VAL ALA THR ALA ALA ALA ILE LEU GLY TRP ILE PHE SEQRES 20 A 424 GLY GLU TRP ALA LEU ARG GLY LYS PRO SER LEU LEU GLY SEQRES 21 A 424 ALA CYS SER GLY ALA ILE ALA GLY LEU VAL GLY VAL THR SEQRES 22 A 424 PRO ALA CYS GLY TYR ILE GLY VAL GLY GLY ALA LEU ILE SEQRES 23 A 424 ILE GLY VAL VAL ALA GLY LEU ALA GLY LEU TRP GLY VAL SEQRES 24 A 424 THR MET LEU LYS ARG LEU LEU ARG VAL ASP ASP PRO CYS SEQRES 25 A 424 ASP VAL PHE GLY VAL HIS GLY VAL CYS GLY ILE VAL GLY SEQRES 26 A 424 CYS ILE MET THR GLY ILE PHE ALA ALA SER SER LEU GLY SEQRES 27 A 424 GLY VAL GLY PHE ALA GLU GLY VAL THR MET GLY HIS GLN SEQRES 28 A 424 LEU LEU VAL GLN LEU GLU SER ILE ALA ILE THR ILE VAL SEQRES 29 A 424 TRP SER GLY VAL VAL ALA PHE ILE GLY TYR LYS LEU ALA SEQRES 30 A 424 ASP LEU THR VAL GLY LEU ARG VAL PRO GLU GLU GLN GLU SEQRES 31 A 424 ARG GLU GLY LEU ASP VAL ASN SER HIS GLY GLU ASN ALA SEQRES 32 A 424 TYR ASN ALA ASP GLN ALA GLN GLN PRO ALA GLN ALA ASP SEQRES 33 A 424 LEU GLU HIS HIS HIS HIS HIS HIS HET ACT A 601 4 HET IMD A 701 5 HETNAM ACT ACETATE ION HETNAM IMD IMIDAZOLE FORMUL 2 ACT C2 H3 O2 1- FORMUL 3 IMD C3 H5 N2 1+ FORMUL 4 HOH *40(H2 O) HELIX 1 1 ASP A 6 ILE A 25 1 20 HELIX 2 2 PRO A 26 ILE A 36 1 11 HELIX 3 3 ARG A 37 LYS A 39 5 3 HELIX 4 4 ASN A 40 TYR A 62 1 23 HELIX 5 5 TYR A 62 GLY A 69 1 8 HELIX 6 6 TRP A 80 LYS A 84 5 5 HELIX 7 7 GLN A 97 ALA A 120 1 24 HELIX 8 8 GLU A 121 ILE A 123 5 3 HELIX 9 9 ARG A 124 SER A 139 1 16 HELIX 10 10 SER A 139 GLY A 149 1 11 HELIX 11 11 LEU A 153 GLY A 157 5 5 HELIX 12 12 VAL A 167 LEU A 181 1 15 HELIX 13 13 ASN A 197 GLY A 218 1 22 HELIX 14 14 SER A 219 GLY A 221 5 3 HELIX 15 15 ASN A 224 GLY A 254 1 31 HELIX 16 16 SER A 257 THR A 273 1 17 HELIX 17 17 GLY A 280 LYS A 303 1 24 HELIX 18 18 ASP A 309 ALA A 333 1 25 HELIX 19 19 ALA A 334 GLY A 338 5 5 HELIX 20 20 THR A 347 VAL A 381 1 35 SHEET 1 A 2 VAL A 91 MET A 92 0 SHEET 2 A 2 ILE A 95 TYR A 96 -1 O ILE A 95 N MET A 92 CISPEP 1 ILE A 25 PRO A 26 0 6.38 SITE 1 AC1 4 ALA A 158 ASP A 160 PHE A 161 TYR A 278 SITE 1 AC2 5 GLN A 104 PHE A 107 TRP A 148 PHE A 161 SITE 2 AC2 5 SER A 219 CRYST1 109.305 109.305 84.404 90.00 90.00 120.00 P 63 6 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 0.009149 0.005282 0.000000 0.00000 SCALE2 0.000000 0.010564 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011848 0.00000