HEADER HYDROLASE 05-FEB-14 4OXF TITLE STRUCTURE OF ECP IN COMPLEX WITH CITRATE IONS AT 1.50 ANGSTROMS COMPND MOL_ID: 1; COMPND 2 MOLECULE: EOSINOPHIL CATIONIC PROTEIN; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: ECP, RIBONUCLEASE 3, RNASE 3; COMPND 5 EC: 3.1.27.-; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 TISSUE: BONE MARROW; SOURCE 6 CELL: EOSINOPHIL; SOURCE 7 GENE: ECP,RNASE3,RNS3; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 9 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 10 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 11 EXPRESSION_SYSTEM_CELL: BACTERIA; SOURCE 12 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 13 EXPRESSION_SYSTEM_PLASMID: PET11C KEYWDS RNASE 3, EOSINOPHIL CATIONIC PROTEIN (ECP), HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR J.A.BLANCO,E.BOIX,M.MOUSSAOUI,V.A.SALAZAR REVDAT 2 27-DEC-23 4OXF 1 SOURCE KEYWDS JRNL REMARK REVDAT 2 2 1 LINK CRYST1 REVDAT 1 04-MAR-15 4OXF 0 JRNL AUTH J.A.BLANCO,E.BOIX,M.MOUSSAOUI,V.A.SALAZAR JRNL TITL STRUCTURE OF ECP IN COMPLEX WITH CITRATE IONS AT 1.50 JRNL TITL 2 ANGSTROMS JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH G.MALLORQUI-FERNANDEZ,J.POUS,R.PERACAULA,J.AYMAMI,T.MAEDA, REMARK 1 AUTH 2 H.TADA,H.YAMADA,M.SENO,R.DE LLORENS,F.X.GOMIS-RUTH,M.COLL REMARK 1 TITL THREE-DIMENSIONAL CRYSTAL STRUCTURE OF HUMAN EOSINOPHIL REMARK 1 TITL 2 CATIONIC PROTEIN (RNASE 3) AT 1.75 A RESOLUTION. REMARK 1 REF J.MOL.BIOL. V. 300 1297 2000 REMARK 1 REFN ISSN 0022-2836 REMARK 1 PMID 10903870 REMARK 1 DOI 10.1006/JMBI.2000.3939 REMARK 1 REFERENCE 2 REMARK 1 AUTH E.BOIX,D.PULIDO,M.MOUSSAOUI,M.V.NOGUES,S.RUSSI REMARK 1 TITL THE SULFATE-BINDING SITE STRUCTURE OF THE HUMAN EOSINOPHIL REMARK 1 TITL 2 CATIONIC PROTEIN AS REVEALED BY A NEW CRYSTAL FORM. REMARK 1 REF J.STRUCT.BIOL. V. 179 1 2012 REMARK 1 REFN ESSN 1095-8657 REMARK 1 PMID 22579681 REMARK 1 DOI 10.1016/J.JSB.2012.04.023 REMARK 2 REMARK 2 RESOLUTION. 1.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.8.4_1496) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.88 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 3 NUMBER OF REFLECTIONS : 55982 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.199 REMARK 3 R VALUE (WORKING SET) : 0.197 REMARK 3 FREE R VALUE : 0.231 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.060 REMARK 3 FREE R VALUE TEST SET COUNT : 2834 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 50.9114 - 4.0710 0.94 2813 140 0.1836 0.2276 REMARK 3 2 4.0710 - 3.2314 0.96 2688 144 0.1595 0.1673 REMARK 3 3 3.2314 - 2.8230 0.98 2685 135 0.1932 0.2226 REMARK 3 4 2.8230 - 2.5649 0.98 2660 151 0.2014 0.2393 REMARK 3 5 2.5649 - 2.3810 0.98 2646 141 0.1991 0.2742 REMARK 3 6 2.3810 - 2.2407 0.99 2654 129 0.1998 0.2548 REMARK 3 7 2.2407 - 2.1284 0.99 2670 147 0.2091 0.2434 REMARK 3 8 2.1284 - 2.0358 0.99 2657 143 0.2032 0.2450 REMARK 3 9 2.0358 - 1.9574 0.99 2600 159 0.2110 0.2596 REMARK 3 10 1.9574 - 1.8899 0.99 2678 132 0.2101 0.2350 REMARK 3 11 1.8899 - 1.8308 1.00 2651 145 0.2153 0.2363 REMARK 3 12 1.8308 - 1.7784 1.00 2653 127 0.2276 0.2718 REMARK 3 13 1.7784 - 1.7316 1.00 2644 142 0.2281 0.2441 REMARK 3 14 1.7316 - 1.6894 1.00 2630 144 0.2233 0.2430 REMARK 3 15 1.6894 - 1.6510 1.00 2657 135 0.2256 0.2258 REMARK 3 16 1.6510 - 1.6158 1.00 2636 155 0.2283 0.2561 REMARK 3 17 1.6158 - 1.5835 1.00 2620 162 0.2431 0.2669 REMARK 3 18 1.5835 - 1.5536 1.00 2647 125 0.2459 0.2862 REMARK 3 19 1.5536 - 1.5259 1.00 2592 151 0.2524 0.3187 REMARK 3 20 1.5259 - 1.5000 1.00 2667 127 0.2570 0.2748 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.150 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 22.600 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.007 2465 REMARK 3 ANGLE : 1.149 3354 REMARK 3 CHIRALITY : 0.049 356 REMARK 3 PLANARITY : 0.006 451 REMARK 3 DIHEDRAL : 18.228 970 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4OXF COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-FEB-14. REMARK 100 THE DEPOSITION ID IS D_1000200187. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 10-JUL-13 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.0 - 5.2 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALBA REMARK 200 BEAMLINE : XALOC REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9795 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 61922 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.500 REMARK 200 RESOLUTION RANGE LOW (A) : 52.530 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 200 DATA REDUNDANCY : 8.600 REMARK 200 R MERGE (I) : 0.03000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 32.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.62 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.97 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.73 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN RESUSPENDED IN SODIUM REMARK 280 CACODYLATE BUFFER (20MM, PH5.0). 1 UL OF PROTEIN SAMPLE WAS REMARK 280 MIXED WITH 1 UL OF CRYSTALLISATION BUFFER (0.1M SODIUM CITRATE REMARK 280 PH5.2, 8% JEFFAMINE M-600, 10MM IRON(III) CHLORIDE), VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y,X,Z+3/4 REMARK 290 4555 Y,-X,Z+1/4 REMARK 290 5555 -X,Y,-Z REMARK 290 6555 X,-Y,-Z+1/2 REMARK 290 7555 Y,X,-Z+1/4 REMARK 290 8555 -Y,-X,-Z+3/4 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 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 87.52500 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 131.28750 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 43.76250 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 87.52500 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 43.76250 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 131.28750 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 APPLY THE FOLLOWING TO CHAINS: A, B REMARK 350 BIOMT1 2 -1.000000 0.000000 0.000000 -62.53500 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 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 MET B 0 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O2 CIT B 302 O HOH B 401 1.92 REMARK 500 CG ARG A 101 O HOH A 591 1.97 REMARK 500 OE1 GLN B 58 O HOH B 402 2.09 REMARK 500 O6 CIT A 302 O HOH A 401 2.13 REMARK 500 O6 CIT B 302 O HOH B 403 2.15 REMARK 500 O HOH A 433 O HOH A 470 2.15 REMARK 500 O ILE A 93 O HOH A 536 2.18 REMARK 500 O HOH A 404 O HOH A 449 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 NH2 ARG A 34 O7 CIT A 302 5455 1.96 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 CYS A 37 CA - CB - SG ANGL. DEV. = 7.1 DEGREES REMARK 500 CYS A 96 CA - CB - SG ANGL. DEV. = 9.1 DEGREES REMARK 500 CYS A 96 CA - CB - SG ANGL. DEV. = -13.1 DEGREES REMARK 500 REMARK 500 REMARK: NULL 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 ASN B 87 69.10 -119.43 REMARK 500 ASN B 95 59.39 -145.27 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 498 DISTANCE = 5.96 ANGSTROMS REMARK 525 HOH A 509 DISTANCE = 5.95 ANGSTROMS REMARK 525 HOH A 527 DISTANCE = 5.95 ANGSTROMS REMARK 525 HOH A 539 DISTANCE = 6.35 ANGSTROMS REMARK 525 HOH A 571 DISTANCE = 6.20 ANGSTROMS REMARK 525 HOH B 511 DISTANCE = 6.05 ANGSTROMS REMARK 525 HOH B 516 DISTANCE = 6.84 ANGSTROMS REMARK 525 HOH B 547 DISTANCE = 6.19 ANGSTROMS REMARK 525 HOH B 569 DISTANCE = 7.10 ANGSTROMS REMARK 525 HOH B 578 DISTANCE = 5.90 ANGSTROMS REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 AUTHORS STATE THAT BOTH IRON AND CITRATE ATOMS HAVE BEEN ADJUSTED REMARK 600 TO THE CORRESPONDING ELECTRON DENSITY. CIT302 SURROUNDS THE SAME- REMARK 600 CHAIN IRON ATOM, WHICH CAN ALSO COORDINATE SOME SURROUNDING WATER REMARK 600 MOLECULES. THESE HAVE BEEN DIFFICULT TO ADJUST AS THE ELECTRON REMARK 600 DENSITY AROUND THE IRON ATOMS IS NOT SPHERICAL AND THE WATER REMARK 600 MOLECULES THERE WOULD NOT HAVE A DEFINED FIXED POSITION. THE REMARK 600 SURROUNDING CITRATE LIGAND ALSO SHOWED HIGH MOBILITY. THESE REMARK 600 PROBLEMS ALTOGETHER MAKE REFINEMENT STEPS MOVE THE CITRATE LIGAND REMARK 600 IN SUCH A POSITION THAT CLASHES APPEARED. REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FE A 304 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CIT A 302 O1 REMARK 620 2 CIT A 302 O4 81.7 REMARK 620 3 CIT A 302 O7 71.5 99.9 REMARK 620 4 CIT A 302 O5 82.3 62.1 40.9 REMARK 620 5 HOH A 422 O 93.7 172.1 84.5 123.8 REMARK 620 6 HOH A 451 O 176.3 101.5 109.6 100.9 83.0 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FE B 303 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CIT B 302 O1 REMARK 620 2 CIT B 302 O7 83.5 REMARK 620 3 CIT B 302 O4 77.4 77.0 REMARK 620 4 CIT B 302 O5 83.8 34.2 43.6 REMARK 620 5 CIT B 302 O6 111.0 40.6 57.7 27.5 REMARK 620 6 HOH B 405 O 107.9 73.9 149.6 106.3 93.5 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CIT A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CIT A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CIT A 303 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue FE A 304 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CIT B 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CIT B 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue FE B 303 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4A2Y RELATED DB: PDB REMARK 900 ECP IN COMPLEX WITH CITRATE IONS AT 1.7 A RESOLUTION REMARK 900 RELATED ID: 4OWZ RELATED DB: PDB REMARK 900 ECP/H15A MUTANT IN COMPLEX WITH CITRATE AND IRON IONS REMARK 900 RELATED ID: 4OXB RELATED DB: PDB REMARK 900 ECP IN COMPLEX WITH SULPHATE IONS DBREF 4OXF A 1 133 UNP P12724 ECP_HUMAN 28 160 DBREF 4OXF B 1 133 UNP P12724 ECP_HUMAN 28 160 SEQADV 4OXF MET A 0 UNP P12724 INITIATING METHIONINE SEQADV 4OXF ARG A 97 UNP P12724 THR 124 VARIANT SEQADV 4OXF MET B 0 UNP P12724 INITIATING METHIONINE SEQADV 4OXF ARG B 97 UNP P12724 THR 124 VARIANT SEQRES 1 A 134 MET ARG PRO PRO GLN PHE THR ARG ALA GLN TRP PHE ALA SEQRES 2 A 134 ILE GLN HIS ILE SER LEU ASN PRO PRO ARG CYS THR ILE SEQRES 3 A 134 ALA MET ARG ALA ILE ASN ASN TYR ARG TRP ARG CYS LYS SEQRES 4 A 134 ASN GLN ASN THR PHE LEU ARG THR THR PHE ALA ASN VAL SEQRES 5 A 134 VAL ASN VAL CYS GLY ASN GLN SER ILE ARG CYS PRO HIS SEQRES 6 A 134 ASN ARG THR LEU ASN ASN CYS HIS ARG SER ARG PHE ARG SEQRES 7 A 134 VAL PRO LEU LEU HIS CYS ASP LEU ILE ASN PRO GLY ALA SEQRES 8 A 134 GLN ASN ILE SER ASN CYS ARG TYR ALA ASP ARG PRO GLY SEQRES 9 A 134 ARG ARG PHE TYR VAL VAL ALA CYS ASP ASN ARG ASP PRO SEQRES 10 A 134 ARG ASP SER PRO ARG TYR PRO VAL VAL PRO VAL HIS LEU SEQRES 11 A 134 ASP THR THR ILE SEQRES 1 B 134 MET ARG PRO PRO GLN PHE THR ARG ALA GLN TRP PHE ALA SEQRES 2 B 134 ILE GLN HIS ILE SER LEU ASN PRO PRO ARG CYS THR ILE SEQRES 3 B 134 ALA MET ARG ALA ILE ASN ASN TYR ARG TRP ARG CYS LYS SEQRES 4 B 134 ASN GLN ASN THR PHE LEU ARG THR THR PHE ALA ASN VAL SEQRES 5 B 134 VAL ASN VAL CYS GLY ASN GLN SER ILE ARG CYS PRO HIS SEQRES 6 B 134 ASN ARG THR LEU ASN ASN CYS HIS ARG SER ARG PHE ARG SEQRES 7 B 134 VAL PRO LEU LEU HIS CYS ASP LEU ILE ASN PRO GLY ALA SEQRES 8 B 134 GLN ASN ILE SER ASN CYS ARG TYR ALA ASP ARG PRO GLY SEQRES 9 B 134 ARG ARG PHE TYR VAL VAL ALA CYS ASP ASN ARG ASP PRO SEQRES 10 B 134 ARG ASP SER PRO ARG TYR PRO VAL VAL PRO VAL HIS LEU SEQRES 11 B 134 ASP THR THR ILE HET CIT A 301 13 HET CIT A 302 13 HET CIT A 303 13 HET FE A 304 1 HET CIT B 301 13 HET CIT B 302 13 HET FE B 303 1 HETNAM CIT CITRIC ACID HETNAM FE FE (III) ION FORMUL 3 CIT 5(C6 H8 O7) FORMUL 6 FE 2(FE 3+) FORMUL 10 HOH *400(H2 O) HELIX 1 AA1 THR A 6 ILE A 16 1 11 HELIX 2 AA2 ARG A 22 ASN A 32 1 11 HELIX 3 AA3 THR A 47 CYS A 55 1 9 HELIX 4 AA4 THR B 6 ILE B 16 1 11 HELIX 5 AA5 ARG B 22 MET B 27 1 6 HELIX 6 AA6 MET B 27 ASN B 32 1 6 HELIX 7 AA7 THR B 47 CYS B 55 1 9 SHEET 1 AA1 3 GLN A 40 LEU A 44 0 SHEET 2 AA1 3 VAL A 78 LEU A 85 -1 O LEU A 81 N PHE A 43 SHEET 3 AA1 3 TYR A 98 ARG A 105 -1 O ARG A 101 N HIS A 82 SHEET 1 AA2 3 CYS A 71 ARG A 73 0 SHEET 2 AA2 3 TYR A 107 ASN A 113 -1 O VAL A 109 N HIS A 72 SHEET 3 AA2 3 VAL A 124 THR A 132 -1 O VAL A 127 N ALA A 110 SHEET 1 AA3 5 GLN B 40 LEU B 44 0 SHEET 2 AA3 5 VAL B 78 LEU B 85 -1 O LEU B 81 N PHE B 43 SHEET 3 AA3 5 TYR B 98 ASN B 113 -1 O ALA B 99 N ASP B 84 SHEET 4 AA3 5 CYS B 71 ARG B 73 -1 N HIS B 72 O VAL B 109 SHEET 5 AA3 5 SER B 59 ILE B 60 -1 N ILE B 60 O CYS B 71 SHEET 1 AA4 4 GLN B 40 LEU B 44 0 SHEET 2 AA4 4 VAL B 78 LEU B 85 -1 O LEU B 81 N PHE B 43 SHEET 3 AA4 4 TYR B 98 ASN B 113 -1 O ALA B 99 N ASP B 84 SHEET 4 AA4 4 VAL B 124 ILE B 133 -1 O VAL B 127 N ALA B 110 SSBOND 1 CYS A 23 CYS A 83 1555 1555 2.04 SSBOND 2 CYS A 37 CYS A 96 1555 1555 2.05 SSBOND 3 CYS A 55 CYS A 111 1555 1555 2.04 SSBOND 4 CYS A 62 CYS A 71 1555 1555 2.06 SSBOND 5 CYS B 23 CYS B 83 1555 1555 2.04 SSBOND 6 CYS B 37 CYS B 96 1555 1555 2.04 SSBOND 7 CYS B 55 CYS B 111 1555 1555 2.05 SSBOND 8 CYS B 62 CYS B 71 1555 1555 2.05 LINK O1 CIT A 302 FE FE A 304 1555 1555 2.25 LINK O4 CIT A 302 FE FE A 304 1555 1555 2.71 LINK O7 CIT A 302 FE FE A 304 1555 5455 2.57 LINK O5 CIT A 302 FE FE A 304 1555 5455 1.85 LINK FE FE A 304 O HOH A 422 1555 5455 1.83 LINK FE FE A 304 O HOH A 451 1555 5455 2.21 LINK O1 CIT B 302 FE FE B 303 1555 1555 2.06 LINK O7 CIT B 302 FE FE B 303 1555 1555 1.78 LINK O4 CIT B 302 FE FE B 303 1555 5455 1.98 LINK O5 CIT B 302 FE FE B 303 1555 5455 2.04 LINK O6 CIT B 302 FE FE B 303 1555 5455 2.12 LINK FE FE B 303 O HOH B 405 1555 1555 1.96 SITE 1 AC1 11 THR A 46 ASN A 50 SER A 74 ARG A 75 SITE 2 AC1 11 PHE A 76 TYR A 107 HOH A 407 HOH A 410 SITE 3 AC1 11 HOH A 438 HOH A 506 ARG B 121 SITE 1 AC2 10 ARG A 34 CYS A 37 LYS A 38 ASN A 39 SITE 2 AC2 10 GLN A 40 FE A 304 HOH A 401 HOH A 408 SITE 3 AC2 10 HOH A 422 HOH A 451 SITE 1 AC3 8 ARG A 45 HOH A 404 HOH A 425 HOH A 449 SITE 2 AC3 8 HOH A 514 HOH A 596 ARG B 114 PRO B 116 SITE 1 AC4 3 CIT A 302 HOH A 422 HOH A 451 SITE 1 AC5 15 ARG A 61 ARG A 66 THR B 46 ASN B 50 SITE 2 AC5 15 VAL B 54 ASN B 57 SER B 74 ARG B 75 SITE 3 AC5 15 PHE B 76 VAL B 78 TYR B 107 HOH B 411 SITE 4 AC5 15 HOH B 412 HOH B 487 HOH B 577 SITE 1 AC6 9 ARG B 34 ARG B 36 CYS B 37 LYS B 38 SITE 2 AC6 9 ASN B 39 FE B 303 HOH B 401 HOH B 403 SITE 3 AC6 9 HOH B 405 SITE 1 AC7 2 CIT B 302 HOH B 405 CRYST1 62.535 62.535 175.050 90.00 90.00 90.00 P 43 2 2 16 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 0.015991 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015991 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005713 0.00000