HEADER HYDROLASE/HYDROLASE INHIBITOR 10-JUN-16 5KEZ TITLE SELECTIVE AND POTENT INHIBITION OF THE GLYCOSIDASE HUMAN AMYLASE BY TITLE 2 THE SHORT AND EXTREMELY COMPACT PEPTIDE PIHA FROM MRNA DISPLAY COMPND MOL_ID: 1; COMPND 2 MOLECULE: PANCREATIC ALPHA-AMYLASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 16-511; COMPND 5 SYNONYM: PA,1,4-ALPHA-D-GLUCAN GLUCANOHYDROLASE; COMPND 6 EC: 3.2.1.1; COMPND 7 ENGINEERED: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: ACE-DTY-PRO-TYR-SER-CYS-TRP-VAL-ARG-HIS-NH2; COMPND 10 CHAIN: B; COMPND 11 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: AMY2A; SOURCE 6 EXPRESSION_SYSTEM: KOMAGATAELLA PASTORIS; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 4922; SOURCE 8 MOL_ID: 2; SOURCE 9 SYNTHETIC: YES; SOURCE 10 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 11 ORGANISM_TAXID: 32630 KEYWDS AMYLASE, DIABETES, OBESITY, GLUCOSYL HYDROLASE, HYDROLASE-HYDROLASE KEYWDS 2 INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR S.CANER,G.D.BRAYER REVDAT 2 27-SEP-23 5KEZ 1 REMARK SEQRES LINK REVDAT 1 29-MAR-17 5KEZ 0 JRNL AUTH S.A.JONGKEES,S.CANER,C.TYSOE,G.D.BRAYER,S.G.WITHERS,H.SUGA JRNL TITL RAPID DISCOVERY OF POTENT AND SELECTIVE JRNL TITL 2 GLYCOSIDASE-INHIBITING DE NOVO PEPTIDES. JRNL REF CELL CHEM BIOL V. 24 381 2017 JRNL REFN ESSN 2451-9456 JRNL PMID 28262556 JRNL DOI 10.1016/J.CHEMBIOL.2017.02.001 REMARK 2 REMARK 2 RESOLUTION. 1.83 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.10.1_2155 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) : 1.83 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 39.18 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.360 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.1 REMARK 3 NUMBER OF REFLECTIONS : 48983 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.179 REMARK 3 R VALUE (WORKING SET) : 0.177 REMARK 3 FREE R VALUE : 0.208 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 2450 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 39.1852 - 4.7932 0.99 2774 146 0.1527 0.1674 REMARK 3 2 4.7932 - 3.8055 0.99 2642 140 0.1412 0.1366 REMARK 3 3 3.8055 - 3.3248 1.00 2641 139 0.1618 0.1989 REMARK 3 4 3.3248 - 3.0209 0.99 2622 138 0.1810 0.2069 REMARK 3 5 3.0209 - 2.8045 0.98 2565 135 0.1898 0.2230 REMARK 3 6 2.8045 - 2.6391 0.99 2587 136 0.1888 0.2382 REMARK 3 7 2.6391 - 2.5070 1.00 2590 136 0.1800 0.2017 REMARK 3 8 2.5070 - 2.3979 1.00 2589 136 0.1867 0.2423 REMARK 3 9 2.3979 - 2.3056 1.00 2579 136 0.1845 0.2022 REMARK 3 10 2.3056 - 2.2260 0.98 2562 135 0.1875 0.2260 REMARK 3 11 2.2260 - 2.1564 0.99 2549 134 0.1919 0.2576 REMARK 3 12 2.1564 - 2.0948 1.00 2563 135 0.1906 0.2525 REMARK 3 13 2.0948 - 2.0397 1.00 2571 135 0.1881 0.2257 REMARK 3 14 2.0397 - 1.9899 0.99 2553 135 0.1955 0.2506 REMARK 3 15 1.9899 - 1.9447 0.99 2564 135 0.2020 0.2378 REMARK 3 16 1.9447 - 1.9033 0.98 2524 132 0.2209 0.2884 REMARK 3 17 1.9033 - 1.8652 0.98 2546 134 0.2525 0.2934 REMARK 3 18 1.8652 - 1.8300 0.99 2512 133 0.2770 0.3318 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) : 0.210 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 20.140 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 4168 REMARK 3 ANGLE : 0.915 5668 REMARK 3 CHIRALITY : 0.058 567 REMARK 3 PLANARITY : 0.006 749 REMARK 3 DIHEDRAL : 12.293 2401 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 5KEZ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-JUN-16. REMARK 100 THE DEPOSITION ID IS D_1000222077. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-FEB-16 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 : BL12-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.03317 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 : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 49017 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.830 REMARK 200 RESOLUTION RANGE LOW (A) : 39.176 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : 5.700 REMARK 200 R MERGE (I) : 0.09400 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 14.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.83 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.20 REMARK 200 R MERGE FOR SHELL (I) : 0.78960 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.940 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: 4X9Y REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.18 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.42 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 53%-57% MPD, 0.1 M NA CACODYLATE, PH REMARK 280 7.5, EVAPORATION, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-Y+1/2,-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 SMTRY1 2 -1.000000 0.000000 0.000000 26.40000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 68.63000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.92000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 68.63000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 26.40000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.92000 REMARK 290 SMTRY3 4 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1890 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 17560 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -37.0 KCAL/MOL 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 DTY B 1 C PRO B 2 N 0.138 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 DTY B 1 CA - C - O ANGL. DEV. = 21.6 DEGREES REMARK 500 DTY B 1 O - C - N ANGL. DEV. = -11.6 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 TYR A 31 -54.24 -144.31 REMARK 500 MET A 102 -141.93 -99.12 REMARK 500 ASP A 317 60.20 -105.29 REMARK 500 SER A 414 -107.94 -135.34 REMARK 500 ASP A 433 35.65 -93.63 REMARK 500 ASN A 459 -123.60 57.08 REMARK 500 PRO A 486 45.05 -81.75 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 502 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN A 100 OD1 REMARK 620 2 ARG A 158 O 156.5 REMARK 620 3 ASP A 167 OD1 83.6 116.3 REMARK 620 4 ASP A 167 OD2 128.8 74.6 52.5 REMARK 620 5 HIS A 201 O 70.3 86.2 140.3 160.8 REMARK 620 6 HOH A 687 O 72.9 122.5 74.7 71.2 122.2 REMARK 620 7 HOH A 720 O 98.6 78.1 70.9 90.9 83.7 145.3 REMARK 620 8 HOH A 781 O 106.6 69.7 133.5 90.7 83.7 66.0 146.0 REMARK 620 N 1 2 3 4 5 6 7 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CL A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CA A 502 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4X9Y RELATED DB: PDB REMARK 900 4X9Y CONTAINS THE SAME PROTEIN WITHOUT INHIBITOR REMARK 900 RELATED ID: 4W93 RELATED DB: PDB REMARK 900 4W93 CONTAINS THE SAME PROTEIN COMPLEXED WITH MONTBRETIN A REMARK 900 RELATED ID: 1CPU RELATED DB: PDB REMARK 900 1CPU CONTAINS THE SAME PROTEIN COMPLEXED WITH ACARBOSE DBREF 5KEZ A 1 496 UNP P04746 AMYP_HUMAN 16 511 DBREF 5KEZ B 0 10 PDB 5KEZ 5KEZ 0 10 SEQRES 1 A 496 PCA TYR SER PRO ASN THR GLN GLN GLY ARG THR SER ILE SEQRES 2 A 496 VAL HIS LEU PHE GLU TRP ARG TRP VAL ASP ILE ALA LEU SEQRES 3 A 496 GLU CYS GLU ARG TYR LEU ALA PRO LYS GLY PHE GLY GLY SEQRES 4 A 496 VAL GLN VAL SER PRO PRO ASN GLU ASN VAL ALA ILE TYR SEQRES 5 A 496 ASN PRO PHE ARG PRO TRP TRP GLU ARG TYR GLN PRO VAL SEQRES 6 A 496 SER TYR LYS LEU CYS THR ARG SER GLY ASN GLU ASP GLU SEQRES 7 A 496 PHE ARG ASN MET VAL THR ARG CYS ASN ASN VAL GLY VAL SEQRES 8 A 496 ARG ILE TYR VAL ASP ALA VAL ILE ASN HIS MET CYS GLY SEQRES 9 A 496 ASN ALA VAL SER ALA GLY THR SER SER THR CYS GLY SER SEQRES 10 A 496 TYR PHE ASN PRO GLY SER ARG ASP PHE PRO ALA VAL PRO SEQRES 11 A 496 TYR SER GLY TRP ASP PHE ASN ASP GLY LYS CYS LYS THR SEQRES 12 A 496 GLY SER GLY ASP ILE GLU ASN TYR ASN ASP ALA THR GLN SEQRES 13 A 496 VAL ARG ASP CYS ARG LEU THR GLY LEU LEU ASP LEU ALA SEQRES 14 A 496 LEU GLU LYS ASP TYR VAL ARG SER LYS ILE ALA GLU TYR SEQRES 15 A 496 MET ASN HIS LEU ILE ASP ILE GLY VAL ALA GLY PHE ARG SEQRES 16 A 496 LEU ASP ALA SER LYS HIS MET TRP PRO GLY ASP ILE LYS SEQRES 17 A 496 ALA ILE LEU ASP LYS LEU HIS ASN LEU ASN SER ASN TRP SEQRES 18 A 496 PHE PRO ALA GLY SER LYS PRO PHE ILE TYR GLN GLU VAL SEQRES 19 A 496 ILE ASP LEU GLY GLY GLU PRO ILE LYS SER SER ASP TYR SEQRES 20 A 496 PHE GLY ASN GLY ARG VAL THR GLU PHE LYS TYR GLY ALA SEQRES 21 A 496 LYS LEU GLY THR VAL ILE ARG LYS TRP ASN GLY GLU LYS SEQRES 22 A 496 MET SER TYR LEU LYS ASN TRP GLY GLU GLY TRP GLY PHE SEQRES 23 A 496 VAL PRO SER ASP ARG ALA LEU VAL PHE VAL ASP ASN HIS SEQRES 24 A 496 ASP ASN GLN ARG GLY HIS GLY ALA GLY GLY ALA SER ILE SEQRES 25 A 496 LEU THR PHE TRP ASP ALA ARG LEU TYR LYS MET ALA VAL SEQRES 26 A 496 GLY PHE MET LEU ALA HIS PRO TYR GLY PHE THR ARG VAL SEQRES 27 A 496 MET SER SER TYR ARG TRP PRO ARG GLN PHE GLN ASN GLY SEQRES 28 A 496 ASN ASP VAL ASN ASP TRP VAL GLY PRO PRO ASN ASN ASN SEQRES 29 A 496 GLY VAL ILE LYS GLU VAL THR ILE ASN PRO ASP THR THR SEQRES 30 A 496 CYS GLY ASN ASP TRP VAL CYS GLU HIS ARG TRP ARG GLN SEQRES 31 A 496 ILE ARG ASN MET VAL ILE PHE ARG ASN VAL VAL ASP GLY SEQRES 32 A 496 GLN PRO PHE THR ASN TRP TYR ASP ASN GLY SER ASN GLN SEQRES 33 A 496 VAL ALA PHE GLY ARG GLY ASN ARG GLY PHE ILE VAL PHE SEQRES 34 A 496 ASN ASN ASP ASP TRP SER PHE SER LEU THR LEU GLN THR SEQRES 35 A 496 GLY LEU PRO ALA GLY THR TYR CYS ASP VAL ILE SER GLY SEQRES 36 A 496 ASP LYS ILE ASN GLY ASN CYS THR GLY ILE LYS ILE TYR SEQRES 37 A 496 VAL SER ASP ASP GLY LYS ALA HIS PHE SER ILE SER ASN SEQRES 38 A 496 SER ALA GLU ASP PRO PHE ILE ALA ILE HIS ALA GLU SER SEQRES 39 A 496 LYS LEU SEQRES 1 B 11 ACE DTY PRO TYR SER CYS TRP VAL ARG HIS NH2 MODRES 5KEZ PCA A 1 GLN MODIFIED RESIDUE HET PCA A 1 8 HET ACE B 0 3 HET DTY B 1 12 HET NH2 B 10 1 HET CL A 501 1 HET CA A 502 1 HETNAM PCA PYROGLUTAMIC ACID HETNAM ACE ACETYL GROUP HETNAM DTY D-TYROSINE HETNAM NH2 AMINO GROUP HETNAM CL CHLORIDE ION HETNAM CA CALCIUM ION FORMUL 1 PCA C5 H7 N O3 FORMUL 2 ACE C2 H4 O FORMUL 2 DTY C9 H11 N O3 FORMUL 2 NH2 H2 N FORMUL 3 CL CL 1- FORMUL 4 CA CA 2+ FORMUL 5 HOH *274(H2 O) HELIX 1 AA1 ARG A 20 TYR A 31 1 12 HELIX 2 AA2 PRO A 57 GLN A 63 5 7 HELIX 3 AA3 ASN A 75 VAL A 89 1 15 HELIX 4 AA4 SER A 132 PHE A 136 5 5 HELIX 5 AA5 ASP A 153 CYS A 160 1 8 HELIX 6 AA6 ARG A 161 THR A 163 5 3 HELIX 7 AA7 LYS A 172 GLY A 190 1 19 HELIX 8 AA8 ALA A 198 MET A 202 5 5 HELIX 9 AA9 TRP A 203 ASP A 212 1 10 HELIX 10 AB1 LYS A 243 PHE A 248 5 6 HELIX 11 AB2 PHE A 256 LYS A 268 1 13 HELIX 12 AB3 LYS A 273 TRP A 280 5 8 HELIX 13 AB4 GLY A 281 GLY A 285 5 5 HELIX 14 AB5 PRO A 288 ASP A 290 5 3 HELIX 15 AB6 ASP A 300 GLY A 304 5 5 HELIX 16 AB7 GLY A 308 ILE A 312 5 5 HELIX 17 AB8 THR A 314 TRP A 316 5 3 HELIX 18 AB9 ASP A 317 HIS A 331 1 15 HELIX 19 AC1 CYS A 384 ARG A 387 5 4 HELIX 20 AC2 TRP A 388 VAL A 401 1 14 HELIX 21 AC3 GLU A 493 LYS A 495 5 3 HELIX 22 AC4 DTY B 1 TRP B 6 1 6 HELIX 23 AC5 VAL B 7 HIS B 9 5 3 SHEET 1 AA1 9 SER A 12 LEU A 16 0 SHEET 2 AA1 9 GLY A 39 VAL A 42 1 O GLY A 39 N VAL A 14 SHEET 3 AA1 9 ARG A 92 ALA A 97 1 O TYR A 94 N VAL A 40 SHEET 4 AA1 9 GLY A 193 LEU A 196 1 O ARG A 195 N ALA A 97 SHEET 5 AA1 9 PHE A 229 GLN A 232 1 O PHE A 229 N PHE A 194 SHEET 6 AA1 9 ARG A 252 THR A 254 1 O ARG A 252 N ILE A 230 SHEET 7 AA1 9 ALA A 292 VAL A 294 1 O LEU A 293 N VAL A 253 SHEET 8 AA1 9 PHE A 335 SER A 340 1 O PHE A 335 N VAL A 294 SHEET 9 AA1 9 SER A 12 LEU A 16 1 N ILE A 13 O VAL A 338 SHEET 1 AA2 2 HIS A 101 GLY A 104 0 SHEET 2 AA2 2 LEU A 165 ASP A 167 -1 O LEU A 166 N CYS A 103 SHEET 1 AA3 2 PHE A 348 GLN A 349 0 SHEET 2 AA3 2 ASN A 352 ASP A 353 -1 O ASN A 352 N GLN A 349 SHEET 1 AA4 2 ASN A 362 ASN A 363 0 SHEET 2 AA4 2 VAL A 366 ILE A 367 -1 O VAL A 366 N ASN A 363 SHEET 1 AA5 4 PHE A 406 ASP A 411 0 SHEET 2 AA5 4 GLN A 416 ARG A 421 -1 O GLY A 420 N THR A 407 SHEET 3 AA5 4 GLY A 425 ASN A 430 -1 O PHE A 429 N VAL A 417 SHEET 4 AA5 4 PHE A 487 HIS A 491 -1 O ILE A 488 N VAL A 428 SHEET 1 AA6 2 PHE A 436 GLN A 441 0 SHEET 2 AA6 2 LYS A 474 ILE A 479 -1 O ALA A 475 N LEU A 440 SHEET 1 AA7 2 GLY A 447 CYS A 450 0 SHEET 2 AA7 2 LYS A 466 VAL A 469 -1 O ILE A 467 N TYR A 449 SHEET 1 AA8 2 LYS A 457 ILE A 458 0 SHEET 2 AA8 2 ASN A 461 CYS A 462 -1 O ASN A 461 N ILE A 458 SSBOND 1 CYS A 28 CYS A 86 1555 1555 2.05 SSBOND 2 CYS A 70 CYS A 115 1555 1555 2.05 SSBOND 3 CYS A 141 CYS A 160 1555 1555 2.05 SSBOND 4 CYS A 378 CYS A 384 1555 1555 2.03 SSBOND 5 CYS A 450 CYS A 462 1555 1555 2.04 LINK C PCA A 1 N TYR A 2 1555 1555 1.33 LINK C ACE B 0 N DTY B 1 1555 1555 1.36 LINK CH3 ACE B 0 SG CYS B 5 1555 1555 1.81 LINK C DTY B 1 N PRO B 2 1555 1555 1.48 LINK C HIS B 9 N NH2 B 10 1555 1555 1.39 LINK OD1 ASN A 100 CA CA A 502 1555 1555 2.46 LINK O ARG A 158 CA CA A 502 1555 1555 2.45 LINK OD1 ASP A 167 CA CA A 502 1555 1555 2.43 LINK OD2 ASP A 167 CA CA A 502 1555 1555 2.56 LINK O HIS A 201 CA CA A 502 1555 1555 2.43 LINK CA CA A 502 O HOH A 687 1555 1555 2.49 LINK CA CA A 502 O HOH A 720 1555 1555 2.39 LINK CA CA A 502 O HOH A 781 1555 1555 2.65 CISPEP 1 ASN A 53 PRO A 54 0 -1.41 CISPEP 2 VAL A 129 PRO A 130 0 -4.23 SITE 1 AC1 3 ARG A 195 ASN A 298 ARG A 337 SITE 1 AC2 7 ASN A 100 ARG A 158 ASP A 167 HIS A 201 SITE 2 AC2 7 HOH A 687 HOH A 720 HOH A 781 CRYST1 52.800 75.840 137.260 90.00 90.00 90.00 P 21 21 21 4 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 0.018939 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013186 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007285 0.00000 HETATM 1 N PCA A 1 -12.259 21.480 -0.889 1.00 22.24 N HETATM 2 CA PCA A 1 -11.732 20.844 -2.088 1.00 21.83 C HETATM 3 CB PCA A 1 -11.996 19.339 -2.042 1.00 20.97 C HETATM 4 CG PCA A 1 -13.164 19.154 -1.084 1.00 21.43 C HETATM 5 CD PCA A 1 -13.142 20.457 -0.324 1.00 26.65 C HETATM 6 OE PCA A 1 -13.802 20.623 0.708 1.00 24.71 O HETATM 7 C PCA A 1 -12.426 21.419 -3.328 1.00 19.65 C HETATM 8 O PCA A 1 -12.037 21.132 -4.462 1.00 20.57 O