HEADER HYDROLASE 19-FEB-21 7LTI TITLE X-RAY RADIATION DAMAGE SERIES ON PROTEINASE K AT 100K, CRYSTAL TITLE 2 STRUCTURE, DATASET 2 COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEINASE K; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ENDOPEPTIDASE K,TRITIRACHIUM ALKALINE PROTEINASE; COMPND 5 EC: 3.4.21.64 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PARENGYODONTIUM ALBUM; SOURCE 3 ORGANISM_TAXID: 37998 KEYWDS RADIATION DAMAGE, CONFORMATIONAL HETEROGENEITY, PROTEASE, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR F.YABUKARSKI,T.DOUKOV,D.HERSCHLAG REVDAT 2 18-OCT-23 7LTI 1 REMARK REVDAT 1 17-AUG-22 7LTI 0 JRNL AUTH F.YABUKARSKI,T.DOUKOV,D.A.MOKHTARI,S.DU,D.HERSCHLAG JRNL TITL EVALUATING THE IMPACT OF X-RAY DAMAGE ON CONFORMATIONAL JRNL TITL 2 HETEROGENEITY IN ROOM-TEMPERATURE (277 K) AND CRYO-COOLED JRNL TITL 3 PROTEIN CRYSTALS. JRNL REF ACTA CRYSTALLOGR D STRUCT V. 78 945 2022 JRNL REF 2 BIOL JRNL REFN ISSN 2059-7983 JRNL PMID 35916220 JRNL DOI 10.1107/S2059798322005939 REMARK 2 REMARK 2 RESOLUTION. 0.91 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.18.2_3874 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) : 0.91 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 33.86 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.2 REMARK 3 NUMBER OF REFLECTIONS : 165142 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.153 REMARK 3 R VALUE (WORKING SET) : 0.153 REMARK 3 FREE R VALUE : 0.170 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.870 REMARK 3 FREE R VALUE TEST SET COUNT : 8050 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 33.8600 - 2.8300 1.00 5767 280 0.1308 0.1430 REMARK 3 2 2.8300 - 2.2400 1.00 5521 280 0.1268 0.1464 REMARK 3 3 2.2400 - 1.9600 1.00 5414 301 0.1269 0.1415 REMARK 3 4 1.9600 - 1.7800 1.00 5360 303 0.1351 0.1514 REMARK 3 5 1.7800 - 1.6500 1.00 5447 235 0.1349 0.1487 REMARK 3 6 1.6500 - 1.5600 1.00 5401 263 0.1316 0.1552 REMARK 3 7 1.5600 - 1.4800 1.00 5334 280 0.1291 0.1565 REMARK 3 8 1.4800 - 1.4100 1.00 5363 243 0.1374 0.1550 REMARK 3 9 1.4100 - 1.3600 1.00 5379 254 0.1447 0.1685 REMARK 3 10 1.3600 - 1.3100 1.00 5288 291 0.1420 0.1686 REMARK 3 11 1.3100 - 1.2700 1.00 5342 255 0.1488 0.1625 REMARK 3 12 1.2700 - 1.2400 1.00 5318 275 0.1527 0.1792 REMARK 3 13 1.2400 - 1.2000 1.00 5304 269 0.1544 0.1784 REMARK 3 14 1.2000 - 1.1700 1.00 5323 263 0.1581 0.1652 REMARK 3 15 1.1700 - 1.1500 1.00 5276 280 0.1646 0.1810 REMARK 3 16 1.1500 - 1.1200 1.00 5282 318 0.1662 0.1817 REMARK 3 17 1.1200 - 1.1000 1.00 5280 262 0.1788 0.2055 REMARK 3 18 1.1000 - 1.0800 1.00 5255 300 0.1875 0.2198 REMARK 3 19 1.0800 - 1.0600 1.00 5291 271 0.2012 0.2129 REMARK 3 20 1.0600 - 1.0400 1.00 5250 285 0.2160 0.2229 REMARK 3 21 1.0400 - 1.0200 1.00 5295 259 0.2298 0.2426 REMARK 3 22 1.0200 - 1.0100 1.00 5280 272 0.2330 0.2651 REMARK 3 23 1.0100 - 0.9900 1.00 5306 270 0.2417 0.2662 REMARK 3 24 0.9900 - 0.9800 1.00 5269 266 0.2607 0.2971 REMARK 3 25 0.9800 - 0.9700 1.00 5229 262 0.2689 0.2921 REMARK 3 26 0.9700 - 0.9500 0.99 5239 268 0.2781 0.2648 REMARK 3 27 0.9500 - 0.9400 0.99 5211 280 0.2821 0.3081 REMARK 3 28 0.9400 - 0.9300 0.98 5133 269 0.3000 0.2939 REMARK 3 29 0.9300 - 0.9200 0.94 4915 261 0.3164 0.3203 REMARK 3 30 0.9200 - 0.9100 0.57 3020 135 0.3347 0.3442 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) : 0.095 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 17.872 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 7.54 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 12.07 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 : 0.006 2622 REMARK 3 ANGLE : 0.901 3613 REMARK 3 CHIRALITY : 0.076 384 REMARK 3 PLANARITY : 0.006 508 REMARK 3 DIHEDRAL : 13.016 955 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 7LTI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-FEB-21. REMARK 100 THE DEPOSITION ID IS D_1000254977. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-DEC-18 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 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) : 0.88557 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 : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 166939 REMARK 200 RESOLUTION RANGE HIGH (A) : 0.910 REMARK 200 RESOLUTION RANGE LOW (A) : 40.620 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : 7.100 REMARK 200 R MERGE (I) : 0.07300 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 10.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 0.91 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 0.93 REMARK 200 COMPLETENESS FOR SHELL (%) : 81.1 REMARK 200 DATA REDUNDANCY IN SHELL : 2.90 REMARK 200 R MERGE FOR SHELL (I) : 1.43600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 0.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 7LTD REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.74 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.01 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEINASE K WAS DISSOLVED IN 10 MM REMARK 280 CALCIUM CHLORIDE, 50 MM TRIS PH 7.5 AT A FINAL CONCENTRATION OF REMARK 280 30 MG/ML. 1-2 MICROLITERS OF THIS PROTEIN SOLUTION WAS MIXED REMARK 280 WITH AN EQUIVALENT VOLUME OF PRECIPITANT SOLUTION (0.5 M SODIUM REMARK 280 NITRATE)., VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 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+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -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 -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 50.71150 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 33.86050 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 33.86050 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 76.06725 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 33.86050 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 33.86050 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 25.35575 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 33.86050 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 33.86050 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 76.06725 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 33.86050 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 33.86050 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 25.35575 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 0.00000 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 50.71150 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: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 ASP A 39 -144.48 -167.42 REMARK 500 CYS A 123 56.25 -140.69 REMARK 500 ASP A 207 62.00 61.94 REMARK 500 ASP A 207 62.43 63.26 REMARK 500 SER A 216 -167.95 -116.84 REMARK 500 ASN A 270 70.91 -109.98 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 823 DISTANCE = 5.96 ANGSTROMS REMARK 525 HOH A 824 DISTANCE = 6.09 ANGSTROMS REMARK 525 HOH A 825 DISTANCE = 6.26 ANGSTROMS REMARK 525 HOH A 826 DISTANCE = 6.92 ANGSTROMS REMARK 525 HOH A 827 DISTANCE = 7.51 ANGSTROMS REMARK 525 HOH A 828 DISTANCE = 7.70 ANGSTROMS 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 301 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 PRO A 175 O REMARK 620 2 VAL A 177 O 89.3 REMARK 620 3 ASP A 200 OD1 152.5 111.9 REMARK 620 4 ASP A 200 OD2 157.0 78.3 49.8 REMARK 620 5 HOH A 458 O 96.8 146.7 75.4 84.0 REMARK 620 6 HOH A 512 O 78.3 74.6 123.0 79.7 74.6 REMARK 620 7 HOH A 576 O 90.8 71.8 80.1 103.2 140.4 144.7 REMARK 620 8 HOH A 684 O 77.1 140.1 75.4 124.5 72.9 136.2 71.1 REMARK 620 N 1 2 3 4 5 6 7 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 7LN7 RELATED DB: PDB REMARK 900 RELATED ID: 7LTD RELATED DB: PDB REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE RESIDUE AT POSITION 207 WAS MODELED AS ASPARTATE INSTEAD OF REMARK 999 SERINE BECAUSE THE ELECTRON DENSITY UNAMBIGUOUSLY INDICATES AN REMARK 999 ASPARTATE AT THIS POSITION. THIS IS CONSISTENT WITH OTHER HIGH- REMARK 999 RESOLUTION CRYSTAL STRUCTURES WITH ASPARTATE AT THIS POSITION DBREF 7LTI A 1 279 UNP P06873 PRTK_PARAQ 106 384 SEQADV 7LTI ASP A 207 UNP P06873 SER 312 CONFLICT SEQRES 1 A 279 ALA ALA GLN THR ASN ALA PRO TRP GLY LEU ALA ARG ILE SEQRES 2 A 279 SER SER THR SER PRO GLY THR SER THR TYR TYR TYR ASP SEQRES 3 A 279 GLU SER ALA GLY GLN GLY SER CYS VAL TYR VAL ILE ASP SEQRES 4 A 279 THR GLY ILE GLU ALA SER HIS PRO GLU PHE GLU GLY ARG SEQRES 5 A 279 ALA GLN MET VAL LYS THR TYR TYR TYR SER SER ARG ASP SEQRES 6 A 279 GLY ASN GLY HIS GLY THR HIS CYS ALA GLY THR VAL GLY SEQRES 7 A 279 SER ARG THR TYR GLY VAL ALA LYS LYS THR GLN LEU PHE SEQRES 8 A 279 GLY VAL LYS VAL LEU ASP ASP ASN GLY SER GLY GLN TYR SEQRES 9 A 279 SER THR ILE ILE ALA GLY MET ASP PHE VAL ALA SER ASP SEQRES 10 A 279 LYS ASN ASN ARG ASN CYS PRO LYS GLY VAL VAL ALA SER SEQRES 11 A 279 LEU SER LEU GLY GLY GLY TYR SER SER SER VAL ASN SER SEQRES 12 A 279 ALA ALA ALA ARG LEU GLN SER SER GLY VAL MET VAL ALA SEQRES 13 A 279 VAL ALA ALA GLY ASN ASN ASN ALA ASP ALA ARG ASN TYR SEQRES 14 A 279 SER PRO ALA SER GLU PRO SER VAL CYS THR VAL GLY ALA SEQRES 15 A 279 SER ASP ARG TYR ASP ARG ARG SER SER PHE SER ASN TYR SEQRES 16 A 279 GLY SER VAL LEU ASP ILE PHE GLY PRO GLY THR ASP ILE SEQRES 17 A 279 LEU SER THR TRP ILE GLY GLY SER THR ARG SER ILE SER SEQRES 18 A 279 GLY THR SER MET ALA THR PRO HIS VAL ALA GLY LEU ALA SEQRES 19 A 279 ALA TYR LEU MET THR LEU GLY LYS THR THR ALA ALA SER SEQRES 20 A 279 ALA CYS ARG TYR ILE ALA ASP THR ALA ASN LYS GLY ASP SEQRES 21 A 279 LEU SER ASN ILE PRO PHE GLY THR VAL ASN LEU LEU ALA SEQRES 22 A 279 TYR ASN ASN TYR GLN ALA HET CA A 301 1 HET NO3 A 302 4 HET NO3 A 303 4 HET NO3 A 304 4 HET NO3 A 305 4 HET NO3 A 306 4 HETNAM CA CALCIUM ION HETNAM NO3 NITRATE ION FORMUL 2 CA CA 2+ FORMUL 3 NO3 5(N O3 1-) FORMUL 8 HOH *428(H2 O) HELIX 1 AA1 PRO A 7 SER A 14 1 8 HELIX 2 AA2 HIS A 46 GLU A 50 5 5 HELIX 3 AA3 GLY A 68 SER A 79 1 12 HELIX 4 AA4 GLN A 103 LYS A 118 1 16 HELIX 5 AA5 ASN A 119 ARG A 121 5 3 HELIX 6 AA6 SER A 138 SER A 151 1 14 HELIX 7 AA7 ASP A 165 ARG A 167 5 3 HELIX 8 AA8 GLY A 222 LEU A 240 1 19 HELIX 9 AA9 SER A 247 ALA A 256 1 10 SHEET 1 AA1 2 ALA A 2 GLN A 3 0 SHEET 2 AA1 2 TYR A 23 TYR A 24 -1 O TYR A 23 N GLN A 3 SHEET 1 AA2 7 ALA A 53 THR A 58 0 SHEET 2 AA2 7 GLN A 89 LYS A 94 1 O GLY A 92 N VAL A 56 SHEET 3 AA2 7 SER A 33 ASP A 39 1 N VAL A 35 O GLN A 89 SHEET 4 AA2 7 GLY A 126 LEU A 131 1 O SER A 130 N TYR A 36 SHEET 5 AA2 7 VAL A 153 ALA A 158 1 O MET A 154 N ALA A 129 SHEET 6 AA2 7 CYS A 178 SER A 183 1 O VAL A 180 N VAL A 157 SHEET 7 AA2 7 ILE A 201 PRO A 204 1 O ILE A 201 N GLY A 181 SHEET 1 AA3 2 GLY A 135 GLY A 136 0 SHEET 2 AA3 2 TYR A 169 SER A 170 -1 O SER A 170 N GLY A 135 SHEET 1 AA4 2 ILE A 208 TRP A 212 0 SHEET 2 AA4 2 SER A 216 ILE A 220 -1 O ILE A 220 N ILE A 208 SHEET 1 AA5 2 ASN A 257 LYS A 258 0 SHEET 2 AA5 2 LEU A 271 LEU A 272 -1 O LEU A 272 N ASN A 257 SSBOND 1 CYS A 34 CYS A 123 1555 1555 2.05 SSBOND 2 CYS A 178 CYS A 249 1555 1555 1.99 LINK O PRO A 175 CA CA A 301 1555 1555 2.39 LINK O VAL A 177 CA CA A 301 1555 1555 2.39 LINK OD1 ASP A 200 CA CA A 301 1555 1555 2.70 LINK OD2 ASP A 200 CA CA A 301 1555 1555 2.45 LINK CA CA A 301 O HOH A 458 1555 1555 2.45 LINK CA CA A 301 O HOH A 512 1555 1555 2.45 LINK CA CA A 301 O HOH A 576 1555 1555 2.42 LINK CA CA A 301 O HOH A 684 1555 1555 2.49 CISPEP 1 SER A 170 PRO A 171 0 2.72 CRYST1 67.721 67.721 101.423 90.00 90.00 90.00 P 43 21 2 8 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 0.014766 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014766 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009860 0.00000