HEADER METAL BINDING PROTEIN 26-SEP-17 6EKG TITLE CRYSTAL STRUCTURE OF AN ARCHAEAL CHEY FROM METHANOCCOCUS MARIPALUDIS COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHEMOTAXIS PROTEIN CHEY; COMPND 3 CHAIN: Y; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: METHANOCOCCUS MARIPALUDIS; SOURCE 3 ORGANISM_TAXID: 39152; SOURCE 4 GENE: CHEY, MMP0933; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS CHEMOTAXIS, ARCHAEA, PHOSPHORYLATION, METAL BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR F.ALTEGOER,G.BANGE REVDAT 4 17-JAN-24 6EKG 1 REMARK REVDAT 3 21-FEB-18 6EKG 1 JRNL REVDAT 2 14-FEB-18 6EKG 1 REMARK REVDAT 1 31-JAN-18 6EKG 0 JRNL AUTH T.E.F.QUAX,F.ALTEGOER,F.ROSSI,Z.LI,M.RODRIGUEZ-FRANCO, JRNL AUTH 2 F.KRAUS,G.BANGE,S.V.ALBERS JRNL TITL STRUCTURE AND FUNCTION OF THE ARCHAEAL RESPONSE REGULATOR JRNL TITL 2 CHEY. JRNL REF PROC. NATL. ACAD. SCI. V. 115 E1259 2018 JRNL REF 2 U.S.A. JRNL REFN ESSN 1091-6490 JRNL PMID 29358409 JRNL DOI 10.1073/PNAS.1716661115 REMARK 2 REMARK 2 RESOLUTION. 1.15 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (1.11.1_2575: ???) 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.15 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 41.54 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 44458 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.155 REMARK 3 R VALUE (WORKING SET) : 0.154 REMARK 3 FREE R VALUE : 0.172 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.880 REMARK 3 FREE R VALUE TEST SET COUNT : 2171 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 41.5708 - 2.8975 1.00 2928 127 0.1742 0.1822 REMARK 3 2 2.8975 - 2.2999 1.00 2737 128 0.1695 0.2002 REMARK 3 3 2.2999 - 2.0092 1.00 2664 144 0.1409 0.1593 REMARK 3 4 2.0092 - 1.8255 1.00 2660 144 0.1394 0.1670 REMARK 3 5 1.8255 - 1.6946 1.00 2633 154 0.1290 0.1516 REMARK 3 6 1.6946 - 1.5947 1.00 2625 147 0.1197 0.1405 REMARK 3 7 1.5947 - 1.5148 1.00 2616 141 0.1090 0.1223 REMARK 3 8 1.5148 - 1.4489 1.00 2614 140 0.1177 0.1515 REMARK 3 9 1.4489 - 1.3931 1.00 2636 125 0.1266 0.1790 REMARK 3 10 1.3931 - 1.3450 1.00 2575 157 0.1288 0.1580 REMARK 3 11 1.3450 - 1.3030 1.00 2598 126 0.1409 0.1543 REMARK 3 12 1.3030 - 1.2657 1.00 2610 128 0.1459 0.1628 REMARK 3 13 1.2657 - 1.2324 1.00 2584 151 0.1600 0.2007 REMARK 3 14 1.2324 - 1.2023 1.00 2587 124 0.1723 0.1996 REMARK 3 15 1.2023 - 1.1750 1.00 2613 115 0.1934 0.1904 REMARK 3 16 1.1750 - 1.1500 1.00 2607 120 0.2154 0.2516 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL 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) : 0.090 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 14.360 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 : 0.012 966 REMARK 3 ANGLE : 1.198 1310 REMARK 3 CHIRALITY : 0.098 159 REMARK 3 PLANARITY : 0.009 169 REMARK 3 DIHEDRAL : 2.996 607 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 6EKG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 26-SEP-17. REMARK 100 THE DEPOSITION ID IS D_1200006547. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 02-SEP-17 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : MASSIF-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.966 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 2M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 44463 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.150 REMARK 200 RESOLUTION RANGE LOW (A) : 44.100 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 6.300 REMARK 200 R MERGE (I) : 0.04700 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 14.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.15 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.17 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 5.60 REMARK 200 R MERGE FOR SHELL (I) : 0.75500 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MRBUMP REMARK 200 STARTING MODEL: 1U0S REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 44.72 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.22 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M MAGNESIUM FORMATE 20 % PEG 3350, REMARK 280 VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 294K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 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+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 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 61.94900 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 22.04800 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 22.04800 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 30.97450 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 22.04800 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 22.04800 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 92.92350 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 22.04800 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 22.04800 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 30.97450 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 22.04800 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 22.04800 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 92.92350 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 61.94900 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 TOTAL BURIED SURFACE AREA: 100 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 6230 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -8.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: Y 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 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 Y 1 REMARK 465 ALA Y 2 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 NE2 GLN Y 117 O HOH Y 301 1.01 REMARK 500 OD2 ASP Y 88 O HOH Y 302 1.87 REMARK 500 O HOH Y 373 O HOH Y 402 1.89 REMARK 500 O HOH Y 387 O HOH Y 414 2.05 REMARK 500 CD GLN Y 117 O HOH Y 301 2.09 REMARK 500 O HOH Y 383 O HOH Y 397 2.09 REMARK 500 NH1 ARG Y 22 O HOH Y 303 2.18 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 O HOH Y 371 O HOH Y 382 7465 2.00 REMARK 500 REMARK 500 REMARK: NULL 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 GLU Y 90 C GLN Y 91 N -0.171 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 GLU Y 62 -62.04 74.12 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 Y 436 DISTANCE = 6.17 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 MG Y 201 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP Y 12 OD1 REMARK 620 2 ASP Y 57 OD2 85.6 REMARK 620 3 VAL Y 59 O 91.7 89.6 REMARK 620 4 HOH Y 326 O 88.7 89.0 178.5 REMARK 620 5 HOH Y 335 O 176.7 91.8 90.3 89.3 REMARK 620 6 HOH Y 362 O 90.1 175.5 89.0 92.4 92.6 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 MG Y 201 DBREF 6EKG Y 1 123 UNP Q6LYQ5 Q6LYQ5_METMP 1 123 SEQRES 1 Y 123 MET ALA SER ILE VAL LYS THR MET ILE VAL ASP ASP SER SEQRES 2 Y 123 ALA PHE MET ARG ASN ILE LEU LYS ARG ILE LEU SER THR SEQRES 3 Y 123 THR ASN LYS TYR VAL VAL ILE GLY GLU ALA ALA ASN GLY SEQRES 4 Y 123 ALA ASP ALA ILE LYS MET ALA GLU GLU LEU GLN PRO ASP SEQRES 5 Y 123 LEU ILE SER MET ASP ILE VAL MET PRO GLU THR ASP GLY SEQRES 6 Y 123 ILE THR ALA THR LYS ALA ILE LYS GLU LYS THR PRO GLU SEQRES 7 Y 123 ILE LYS ILE VAL MET CYS THR SER VAL ASP GLN GLU GLN SEQRES 8 Y 123 LYS MET ILE ASP ALA VAL ASN ALA GLY ALA ASP GLY TYR SEQRES 9 Y 123 ILE VAL LYS PRO PHE GLN ALA PRO LYS ILE LEU GLU GLN SEQRES 10 Y 123 PHE ASN LYS LEU PHE PRO HET MG Y 201 1 HETNAM MG MAGNESIUM ION FORMUL 2 MG MG 2+ FORMUL 3 HOH *136(H2 O) HELIX 1 AA1 SER Y 13 THR Y 26 1 14 HELIX 2 AA2 ASN Y 38 GLN Y 50 1 13 HELIX 3 AA3 ASP Y 64 THR Y 76 1 13 HELIX 4 AA4 SER Y 86 GLN Y 91 5 6 HELIX 5 AA5 LYS Y 92 GLY Y 100 1 9 HELIX 6 AA6 GLN Y 110 PHE Y 122 1 13 SHEET 1 AA1 5 TYR Y 30 ALA Y 36 0 SHEET 2 AA1 5 VAL Y 5 VAL Y 10 1 N THR Y 7 O VAL Y 31 SHEET 3 AA1 5 LEU Y 53 ASP Y 57 1 O SER Y 55 N MET Y 8 SHEET 4 AA1 5 LYS Y 80 THR Y 85 1 O VAL Y 82 N ILE Y 54 SHEET 5 AA1 5 GLY Y 103 VAL Y 106 1 O ILE Y 105 N MET Y 83 LINK OD1 ASP Y 12 MG MG Y 201 1555 1555 2.03 LINK OD2 ASP Y 57 MG MG Y 201 1555 1555 2.00 LINK O VAL Y 59 MG MG Y 201 1555 1555 2.04 LINK MG MG Y 201 O HOH Y 326 1555 1555 2.09 LINK MG MG Y 201 O HOH Y 335 1555 1555 2.06 LINK MG MG Y 201 O HOH Y 362 1555 1555 2.00 CISPEP 1 LYS Y 107 PRO Y 108 0 6.70 SITE 1 AC1 6 ASP Y 12 ASP Y 57 VAL Y 59 HOH Y 326 SITE 2 AC1 6 HOH Y 335 HOH Y 362 CRYST1 44.096 44.096 123.898 90.00 90.00 90.00 P 41 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 0.022678 0.000000 0.000000 0.00000 SCALE2 0.000000 0.022678 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008071 0.00000