HEADER HYDROLASE 24-JUN-26 31VH TITLE ALCALASE/CI-2A COMPLEX AT 277K COMPND MOL_ID: 1; COMPND 2 MOLECULE: KERA; COMPND 3 CHAIN: A; COMPND 4 OTHER_DETAILS: SUBTILISIN; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: SUBTILISIN-CHYMOTRYPSIN INHIBITOR-2A; COMPND 7 CHAIN: B; COMPND 8 SYNONYM: CI-2A; COMPND 9 ENGINEERED: YES; COMPND 10 OTHER_DETAILS: PROTEASE INHIBITOR SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS LICHENIFORMIS; SOURCE 3 ORGANISM_TAXID: 1402; SOURCE 4 MOL_ID: 2; SOURCE 5 ORGANISM_SCIENTIFIC: HORDEUM VULGARE; SOURCE 6 ORGANISM_TAXID: 4513; SOURCE 7 EXPRESSION_SYSTEM: SACCHAROMYCES CEREVISEAE; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 4932 KEYWDS ALCALASE, CHYMOTRYPSIN INHIBITOR 2A (CI-2A), ATOMIC-RESOLUTION KEYWDS 2 CRYSTALLOGRAPHY, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR W.RYPNIEWSKI REVDAT 1 07-OCT-26 31VH 0 JRNL AUTH J.E.RACZYNSKA,R.JEDRZEJCZAK,M.DAUTER,P.R.OSTERGAARD, JRNL AUTH 2 K.S.WILSON,W.RYPNIEWSKI JRNL TITL CATALYTIC HYDROGEN BONDS IN ALCALASE-CI2A COMPLEXES REVEALED JRNL TITL 2 BY ULTRA-HIGH-RESOLUTION CRYSTALLOGRAPHY. JRNL REF J.STRUCT.BIOL. 08377 2026 JRNL REFN ESSN 1095-8657 JRNL PMID 42790760 JRNL DOI 10.1016/J.JSB.2026.108377 REMARK 2 REMARK 2 RESOLUTION. 1.05 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELX REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.05 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 95.0 REMARK 3 CROSS-VALIDATION METHOD : NONE REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2433 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 6 REMARK 3 SOLVENT ATOMS : 399 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : NULL REMARK 3 NUMBER OF RESTRAINTS : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : NULL REMARK 3 ANGLE DISTANCES (A) : NULL REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : NULL REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 31VH COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 24-JUN-26. REMARK 100 THE DEPOSITION ID IS D_1292158301. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 25-OCT-95 REMARK 200 TEMPERATURE (KELVIN) : 277 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : X11 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.928 REMARK 200 MONOCHROMATOR : SI REMARK 200 OPTICS : BENDING MAGNET REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 128481 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.050 REMARK 200 RESOLUTION RANGE LOW (A) : 10.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.0 REMARK 200 DATA REDUNDANCY : 4.500 REMARK 200 R MERGE (I) : 0.06200 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 8.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.05 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.07 REMARK 200 COMPLETENESS FOR SHELL (%) : 88.7 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.50100 REMARK 200 FOR SHELL : 1.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: BLOCKS REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.27 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 12.5 MG/ML PROTEIN, 5% W/V PEG 4000, REMARK 280 330 MM NACL, 330 MM CITRATE BUFFER AT PH 6.0, AND 1.5 MM CACL2, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z 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 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: DIMERIC 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 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS A 15 CE NZ REMARK 480 MET B 20 N CG SD CE REMARK 480 GLN B 47 OE1 NE2 REMARK 480 LYS B 72 CD CE NZ 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 HZ3 LYS A 22 O HOH A 404 1.04 REMARK 500 HD3 LYS B 72 O HOH B 150 1.05 REMARK 500 CD LYS B 72 O HOH B 150 1.67 REMARK 500 NZ LYS A 22 O HOH A 404 1.91 REMARK 500 O ARG A 186 O HOH A 405 2.11 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 ARG A 145 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 LYS B 21 CB - CA - C ANGL. DEV. = -12.9 DEGREES REMARK 500 LYS B 21 CD - CE - NZ ANGL. DEV. = 15.4 DEGREES REMARK 500 ARG B 62 CD - NE - CZ ANGL. DEV. = 9.2 DEGREES REMARK 500 ARG B 62 NE - CZ - NH1 ANGL. DEV. = 4.5 DEGREES REMARK 500 ARG B 65 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 ARG B 65 NE - CZ - NH2 ANGL. DEV. = -3.6 DEGREES REMARK 500 ARG B 67 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 ARG B 67 NE - CZ - NH2 ANGL. DEV. = -6.7 DEGREES REMARK 500 ARG B 81 NE - CZ - NH2 ANGL. DEV. = -3.4 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 ASP A 32 -155.73 -163.99 REMARK 500 ALA A 73 16.89 -143.20 REMARK 500 ASN A 77 -157.08 -158.61 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 B 194 DISTANCE = 6.39 ANGSTROMS REMARK 525 HOH B 195 DISTANCE = 6.68 ANGSTROMS REMARK 525 HOH B 196 DISTANCE = 7.23 ANGSTROMS REMARK 525 HOH B 197 DISTANCE = 8.94 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 GLN A 2 OE1 REMARK 620 2 ASP A 41 OD1 154.3 REMARK 620 3 ASP A 41 OD2 152.8 52.5 REMARK 620 4 LEU A 75 O 78.1 86.9 109.8 REMARK 620 5 ASN A 77 OD1 78.7 80.2 126.3 88.7 REMARK 620 6 THR A 79 O 90.9 98.2 85.9 162.9 76.3 REMARK 620 7 VAL A 81 O 77.2 123.5 77.0 88.3 155.8 102.1 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NA A 303 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ALA A 37 O REMARK 620 2 HIS A 39 O 104.6 REMARK 620 3 LEU A 42 O 105.9 90.0 REMARK 620 4 HOH A 621 O 99.4 93.4 152.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NA A 302 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ALA A 169 O REMARK 620 2 TYR A 171 O 94.7 REMARK 620 3 VAL A 174 O 106.9 88.6 REMARK 620 4 HOH A 473 O 110.2 154.8 81.0 REMARK 620 5 HOH A 615 O 115.4 84.7 137.5 87.6 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NA A 304 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 421 O REMARK 620 2 HOH A 514 O 89.3 REMARK 620 3 HOH A 566 O 124.2 79.2 REMARK 620 4 HOH A 640 O 150.7 102.6 84.6 REMARK 620 5 HOH A 679 O 102.5 160.6 81.4 74.3 REMARK 620 N 1 2 3 4 DBREF 31VH A 1 275 UNP Q9FDF2 Q9FDF2_BACLI 37 310 DBREF 31VH B 21 83 UNP P01053 ICI2_HORVU 22 84 SEQADV 31VH MET B 20 UNP P01053 INITIATING METHIONINE SEQADV 31VH GLU B 78 UNP P01053 GLN 79 CONFLICT SEQRES 1 A 274 ALA GLN THR VAL PRO TYR GLY ILE PRO LEU ILE LYS ALA SEQRES 2 A 274 ASP LYS VAL GLN ALA GLN GLY PHE LYS GLY ALA ASN VAL SEQRES 3 A 274 LYS VAL ALA VAL LEU ASP THR GLY ILE GLN ALA SER HIS SEQRES 4 A 274 PRO ASP LEU ASN VAL VAL GLY GLY ALA SER PHE VAL ALA SEQRES 5 A 274 GLY GLU ALA TYR ASN THR ASP GLY ASN GLY HIS GLY THR SEQRES 6 A 274 HIS VAL ALA GLY THR VAL ALA ALA LEU ASP ASN THR THR SEQRES 7 A 274 GLY VAL LEU GLY VAL ALA PRO SER VAL SER LEU TYR ALA SEQRES 8 A 274 VAL LYS VAL LEU ASN SER SER GLY SER GLY SER TYR SER SEQRES 9 A 274 GLY ILE VAL SER GLY ILE GLU TRP ALA THR THR ASN GLY SEQRES 10 A 274 MET ASP VAL ILE ASN MET SER LEU GLY GLY ALA SER GLY SEQRES 11 A 274 SER THR ALA MET LYS GLN ALA VAL ASP ASN ALA TYR ALA SEQRES 12 A 274 ARG GLY VAL VAL VAL VAL ALA ALA ALA GLY ASN SER GLY SEQRES 13 A 274 SER SER GLY ASN THR ASN THR ILE GLY TYR PRO ALA LYS SEQRES 14 A 274 TYR ASP SER VAL ILE ALA VAL GLY ALA VAL ASP SER ASN SEQRES 15 A 274 SER ASN ARG ALA SER PHE SER SER VAL GLY ALA GLU LEU SEQRES 16 A 274 GLU VAL MET ALA PRO GLY ALA GLY VAL TYR SER THR TYR SEQRES 17 A 274 PRO THR ASN THR TYR ALA THR LEU ASN GLY THR SER MET SEQRES 18 A 274 ALA SER PRO HIS VAL ALA GLY ALA ALA ALA LEU ILE LEU SEQRES 19 A 274 SER LYS HIS PRO ASN LEU SER ALA SER GLN VAL ARG ASN SEQRES 20 A 274 ARG LEU SER SER THR ALA THR TYR LEU GLY SER SER PHE SEQRES 21 A 274 TYR TYR GLY LYS GLY LEU ILE ASN VAL GLU ALA ALA ALA SEQRES 22 A 274 GLN SEQRES 1 B 64 MET LYS THR GLU TRP PRO GLU LEU VAL GLY LYS SER VAL SEQRES 2 B 64 GLU GLU ALA LYS LYS VAL ILE LEU GLN ASP LYS PRO GLU SEQRES 3 B 64 ALA GLN ILE ILE VAL LEU PRO VAL GLY THR ILE VAL THR SEQRES 4 B 64 MET GLU TYR ARG ILE ASP ARG VAL ARG LEU PHE VAL ASP SEQRES 5 B 64 LYS LEU ASP ASN ILE ALA GLU VAL PRO ARG VAL GLY HET CA A 301 1 HET NA A 302 1 HET NA A 303 1 HET NA A 304 1 HET CL A 305 1 HET CL A 306 1 HETNAM CA CALCIUM ION HETNAM NA SODIUM ION HETNAM CL CHLORIDE ION FORMUL 3 CA CA 2+ FORMUL 4 NA 3(NA 1+) FORMUL 7 CL 2(CL 1-) FORMUL 9 HOH *399(H2 O) HELIX 1 AA1 TYR A 6 ILE A 11 1 6 HELIX 2 AA2 LYS A 12 GLN A 19 1 8 HELIX 3 AA3 GLY A 63 ALA A 74 1 12 HELIX 4 AA4 SER A 103 ASN A 117 1 15 HELIX 5 AA5 SER A 132 ARG A 145 1 14 HELIX 6 AA6 GLY A 219 HIS A 238 1 20 HELIX 7 AA7 SER A 242 THR A 253 1 12 HELIX 8 AA8 SER A 259 GLY A 264 1 6 HELIX 9 AA9 ASN A 269 ALA A 274 1 6 HELIX 10 AB1 TRP B 24 VAL B 28 5 5 HELIX 11 AB2 SER B 31 LYS B 43 1 13 SHEET 1 AA1 7 VAL A 44 SER A 49 0 SHEET 2 AA1 7 SER A 89 LYS A 94 1 O LEU A 90 N VAL A 45 SHEET 3 AA1 7 LYS A 27 ASP A 32 1 N VAL A 30 O TYR A 91 SHEET 4 AA1 7 VAL A 121 MET A 124 1 O VAL A 121 N ALA A 29 SHEET 5 AA1 7 VAL A 148 ALA A 152 1 O VAL A 148 N ILE A 122 SHEET 6 AA1 7 ILE A 175 VAL A 180 1 O ILE A 175 N VAL A 149 SHEET 7 AA1 7 LEU A 196 PRO A 201 1 O VAL A 198 N GLY A 178 SHEET 1 AA2 3 SER A 101 GLY A 102 0 SHEET 2 AA2 3 ILE B 56 THR B 58 -1 O ILE B 56 N GLY A 102 SHEET 3 AA2 3 LEU A 126 GLY A 127 -1 N GLY A 127 O VAL B 57 SHEET 1 AA3 2 VAL A 205 TYR A 209 0 SHEET 2 AA3 2 THR A 213 LEU A 217 -1 O THR A 213 N TYR A 209 SHEET 1 AA4 3 GLN B 47 PRO B 52 0 SHEET 2 AA4 3 ARG B 65 VAL B 70 1 O LEU B 68 N LEU B 51 SHEET 3 AA4 3 ARG B 81 VAL B 82 -1 O ARG B 81 N ARG B 67 LINK OE1 GLN A 2 CA CA A 301 1555 1555 2.39 LINK O ALA A 37 NA NA A 303 1555 1555 2.56 LINK O HIS A 39 NA NA A 303 1555 1555 2.30 LINK OD1 ASP A 41 CA CA A 301 1555 1555 2.45 LINK OD2 ASP A 41 CA CA A 301 1555 1555 2.49 LINK O LEU A 42 NA NA A 303 1555 1555 2.29 LINK O LEU A 75 CA CA A 301 1555 1555 2.30 LINK OD1 ASN A 77 CA CA A 301 1555 1555 2.42 LINK O THR A 79 CA CA A 301 1555 1555 2.35 LINK O VAL A 81 CA CA A 301 1555 1555 2.34 LINK O ALA A 169 NA NA A 302 1555 1555 2.33 LINK O TYR A 171 NA NA A 302 1555 1555 2.37 LINK O VAL A 174 NA NA A 302 1555 1555 2.25 LINK NA NA A 302 O HOH A 473 1555 1555 2.39 LINK NA NA A 302 O HOH A 615 1555 1555 2.33 LINK NA NA A 303 O HOH A 621 1555 1555 2.36 LINK NA NA A 304 O HOH A 421 1555 1555 2.10 LINK NA NA A 304 O HOH A 514 1555 1555 2.02 LINK NA NA A 304 O HOH A 566 1555 1555 2.18 LINK NA NA A 304 O HOH A 640 1555 1555 3.02 LINK NA NA A 304 O HOH A 679 1555 1555 2.85 CISPEP 1 TYR A 167 PRO A 168 0 12.53 CISPEP 2 PRO A 210 THR A 211 0 -6.11 CRYST1 38.274 45.094 46.734 104.04 101.42 103.16 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 0.026127 0.006110 0.007466 0.00000 SCALE2 0.000000 0.022774 0.007198 0.00000 SCALE3 0.000000 0.000000 0.022894 0.00000 CONECT 20 5092 CONECT 559 5094 CONECT 580 5094 CONECT 614 5092 CONECT 615 5092 CONECT 623 5094 CONECT 1037 5092 CONECT 1071 5092 CONECT 1096 5092 CONECT 1117 5092 CONECT 2344 5093 CONECT 2376 5093 CONECT 2425 5093 CONECT 5092 20 614 615 1037 CONECT 5092 1071 1096 1117 CONECT 5093 2344 2376 2425 5170 CONECT 5093 5312 CONECT 5094 559 580 623 5318 CONECT 5095 5118 5211 5263 5337 CONECT 5095 5376 CONECT 5118 5095 CONECT 5170 5093 CONECT 5211 5095 CONECT 5263 5095 CONECT 5312 5093 CONECT 5318 5094 CONECT 5337 5095 CONECT 5376 5095 MASTER 298 0 6 11 15 0 0 6 2838 2 28 27 END