HEADER DE NOVO PROTEIN 23-AUG-24 9DBB TITLE FE-BOUND STRUCTURE OF COMPUTATIONALLY DESIGNED HOMOTRIMER TET4 COMPND MOL_ID: 1; COMPND 2 MOLECULE: COMPUTATIONALLY DESIGNED TET4; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 3 ORGANISM_TAXID: 32630; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 5 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS METALLOPROTEIN, COMPUTATIONAL DESIGN, DE NOVO PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR A.M.HOFFNAGLE,F.A.TEZCAN REVDAT 2 13-AUG-25 9DBB 1 JRNL REVDAT 1 06-AUG-25 9DBB 0 JRNL AUTH A.M.HOFFNAGLE,S.SRISANTITHAM,M.NEELEY,C.Y.TSAI,F.A.TEZCAN JRNL TITL A DE NOVO DESIGNED PROTEIN WITH VERSATILE METAL BINDING AND JRNL TITL 2 TUNABLE HYDROLYTIC ACTIVITY. JRNL REF BIOCHEMISTRY V. 64 3261 2025 JRNL REFN ISSN 0006-2960 JRNL PMID 40700614 JRNL DOI 10.1021/ACS.BIOCHEM.5C00259 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.17_3644 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 : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 40.54 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.930 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 3 NUMBER OF REFLECTIONS : 6966 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.223 REMARK 3 R VALUE (WORKING SET) : 0.216 REMARK 3 FREE R VALUE : 0.283 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.090 REMARK 3 FREE R VALUE TEST SET COUNT : 703 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 40.5400 - 4.2900 1.00 1269 140 0.1778 0.2367 REMARK 3 2 4.2700 - 3.4000 1.00 1229 144 0.2055 0.2713 REMARK 3 3 3.3900 - 2.9700 1.00 1248 130 0.2795 0.3583 REMARK 3 4 2.9700 - 2.7000 1.00 1262 146 0.2951 0.4215 REMARK 3 5 2.6900 - 2.5000 0.99 1255 143 0.3597 0.3952 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) : 0.478 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 37.319 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 71.09 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 94.86 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 : 0.003 847 REMARK 3 ANGLE : 0.490 1148 REMARK 3 CHIRALITY : 0.035 134 REMARK 3 PLANARITY : 0.004 143 REMARK 3 DIHEDRAL : 20.364 315 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 3 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: CHAIN 'A' AND (RESID 1 THROUGH 46 ) REMARK 3 ORIGIN FOR THE GROUP (A): -6.4437 -7.4558 -4.8540 REMARK 3 T TENSOR REMARK 3 T11: 0.6279 T22: 0.6509 REMARK 3 T33: 0.6091 T12: -0.1012 REMARK 3 T13: -0.0844 T23: 0.0404 REMARK 3 L TENSOR REMARK 3 L11: 6.7519 L22: 9.3226 REMARK 3 L33: 6.4241 L12: -0.8181 REMARK 3 L13: 4.7858 L23: -5.9002 REMARK 3 S TENSOR REMARK 3 S11: -0.2931 S12: 0.9282 S13: 0.5855 REMARK 3 S21: 0.1130 S22: 0.4620 S23: 0.3486 REMARK 3 S31: -0.8984 S32: 0.2124 S33: -0.0582 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: CHAIN 'A' AND (RESID 47 THROUGH 80 ) REMARK 3 ORIGIN FOR THE GROUP (A): -7.9652 -13.3128 7.8705 REMARK 3 T TENSOR REMARK 3 T11: 0.9370 T22: 0.4414 REMARK 3 T33: 0.7617 T12: 0.1292 REMARK 3 T13: -0.0442 T23: -0.0304 REMARK 3 L TENSOR REMARK 3 L11: 8.2883 L22: 4.2788 REMARK 3 L33: 8.2419 L12: 4.3441 REMARK 3 L13: -0.3095 L23: -2.8964 REMARK 3 S TENSOR REMARK 3 S11: 0.0542 S12: -0.2544 S13: -0.1102 REMARK 3 S21: 0.9298 S22: 0.2084 S23: 0.6799 REMARK 3 S31: -0.3820 S32: -0.3838 S33: -0.1422 REMARK 3 TLS GROUP : 3 REMARK 3 SELECTION: CHAIN 'A' AND (RESID 81 THROUGH 107 ) REMARK 3 ORIGIN FOR THE GROUP (A): -6.6885 -17.2632 -4.6665 REMARK 3 T TENSOR REMARK 3 T11: 0.7616 T22: 0.4493 REMARK 3 T33: 0.8071 T12: 0.0239 REMARK 3 T13: 0.0010 T23: -0.0039 REMARK 3 L TENSOR REMARK 3 L11: 9.8144 L22: 6.6725 REMARK 3 L33: 7.7253 L12: 2.7566 REMARK 3 L13: 0.9264 L23: 3.0808 REMARK 3 S TENSOR REMARK 3 S11: -0.0535 S12: 1.1269 S13: -0.4678 REMARK 3 S21: 0.9560 S22: 0.4337 S23: -0.6556 REMARK 3 S31: 1.3535 S32: 0.0435 S33: -0.2367 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 9DBB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-AUG-24. REMARK 100 THE DEPOSITION ID IS D_1000287707. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-APR-24 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.721950 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 : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6985 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 40.540 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 9.900 REMARK 200 R MERGE (I) : 0.07439 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 17.2400 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.59 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.5 REMARK 200 DATA REDUNDANCY IN SHELL : 9.10 REMARK 200 R MERGE FOR SHELL (I) : 0.93860 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.240 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.67 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.07 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 23% PEG 400, 200 MM CACL2, 100 MM TRIS REMARK 280 (PH 8.5), VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 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+2/3,Y+1/3,Z+1/3 REMARK 290 5555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 6555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 7555 X+1/3,Y+2/3,Z+2/3 REMARK 290 8555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 9555 -X+Y+1/3,-X+2/3,Z+2/3 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 35.37000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 20.42088 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 18.02667 REMARK 290 SMTRY1 5 -0.500000 -0.866025 0.000000 35.37000 REMARK 290 SMTRY2 5 0.866025 -0.500000 0.000000 20.42088 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 18.02667 REMARK 290 SMTRY1 6 -0.500000 0.866025 0.000000 35.37000 REMARK 290 SMTRY2 6 -0.866025 -0.500000 0.000000 20.42088 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 18.02667 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 40.84176 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 36.05333 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 40.84176 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 36.05333 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 40.84176 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 36.05333 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 REMARK 350 TOTAL BURIED SURFACE AREA: 4300 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 15080 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -81.0 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 0.00000 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 0.00000 REMARK 350 BIOMT2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 FE FE A 201 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 317 LIES ON A SPECIAL POSITION. 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 108 REMARK 465 GLU A 109 REMARK 465 ASN A 110 REMARK 465 LEU A 111 REMARK 465 TYR A 112 REMARK 465 PHE A 113 REMARK 465 GLN A 114 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 NZ LYS A 19 NE2 GLN A 93 8444 2.13 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 ASP A 2 -167.38 -77.08 REMARK 500 REMARK 500 REMARK: NULL 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 CA A 202 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 LYS A 19 O REMARK 620 2 ASP A 21 OD1 73.7 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 FE A 201 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 38 NE2 REMARK 620 2 HIS A 38 NE2 0.0 REMARK 620 3 HOH A 317 O 119.6 119.6 REMARK 620 4 HOH A 317 O 119.6 119.6 0.0 REMARK 620 N 1 2 3 DBREF 9DBB A 1 114 PDB 9DBB 9DBB 1 114 SEQRES 1 A 114 ALA ASP TRP GLU ALA ALA MET LEU THR LEU LEU MET MET SEQRES 2 A 114 LEU LYS VAL ILE GLU LYS ALA ASP ASN ALA ALA GLN VAL SEQRES 3 A 114 LEU THR ALA LEU TRP PHE MET ALA LEU ALA ALA HIS MET SEQRES 4 A 114 ALA ALA LEU ALA THR PRO PRO LYS LEU GLU ASP LYS SER SEQRES 5 A 114 PRO ALA SER PRO GLU MET ILE ASP PHE ARG VAL GLY PHE SEQRES 6 A 114 GLU GLU LEU ALA THR GLU ILE GLY LYS ALA ILE LYS LEU SEQRES 7 A 114 ALA ALA LEU GLY LYS VAL LYS GLU ALA GLN ALA ALA ALA SEQRES 8 A 114 GLU GLN LEU LYS THR THR VAL ASN ALA HIS TRP GLN LYS SEQRES 9 A 114 TYR ARG SER ALA GLU ASN LEU TYR PHE GLN HET FE A 201 1 HET CA A 202 1 HETNAM FE FE (III) ION HETNAM CA CALCIUM ION FORMUL 2 FE FE 3+ FORMUL 3 CA CA 2+ FORMUL 4 HOH *26(H2 O) HELIX 1 AA1 ASP A 2 GLU A 18 1 17 HELIX 2 AA2 ASN A 22 ALA A 41 1 20 HELIX 3 AA3 PRO A 46 LYS A 51 5 6 HELIX 4 AA4 SER A 55 LEU A 81 1 27 HELIX 5 AA5 LYS A 83 TYR A 105 1 23 LINK O LYS A 19 CA CA A 202 1555 1555 3.09 LINK OD1 ASP A 21 CA CA A 202 1555 1555 3.17 LINK NE2 HIS A 38 FE FE A 201 1555 1555 2.17 LINK NE2 HIS A 38 FE FE A 201 1555 2555 2.17 LINK FE FE A 201 O HOH A 317 1555 1555 2.19 LINK FE FE A 201 O HOH A 317 1555 2555 2.19 CRYST1 70.740 70.740 54.080 90.00 90.00 120.00 H 3 9 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 0.014136 0.008162 0.000000 0.00000 SCALE2 0.000000 0.016323 0.000000 0.00000 SCALE3 0.000000 0.000000 0.018491 0.00000 CONECT 152 833 CONECT 169 833 CONECT 298 832 CONECT 832 298 850 CONECT 833 152 169 CONECT 850 832 MASTER 347 0 2 5 0 0 0 6 846 1 6 9 END