HEADER SIGNALING PROTEIN 22-AUG-17 5OTT TITLE EXTRACELLULAR DOMAIN OF GLP-1 RECEPTOR IN COMPLEX WITH EXENDIN-4 TITLE 2 VARIANT GLY2HCS/THR5HCS COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUCAGON-LIKE PEPTIDE 1 RECEPTOR; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: EXTRACELLULAR DOMAIN, UNP RESIDUES 24-139; COMPND 5 SYNONYM: GLP-1R; COMPND 6 ENGINEERED: YES; COMPND 7 MOL_ID: 2; COMPND 8 MOLECULE: EXENDIN-4; COMPND 9 CHAIN: B; COMPND 10 ENGINEERED: YES; COMPND 11 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: GLP1R; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 MOL_ID: 2; SOURCE 9 SYNTHETIC: YES; SOURCE 10 ORGANISM_SCIENTIFIC: HELODERMA SUSPECTUM; SOURCE 11 ORGANISM_COMMON: GILA MONSTER; SOURCE 12 ORGANISM_TAXID: 8554 KEYWDS GLUCAGON-LIKE PEPTIDE 1, GPCR, CYCLIC PEPTIDES, SIGNALING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR S.MORTENSEN REVDAT 4 06-MAR-24 5OTT 1 HETSYN REVDAT 3 17-JAN-24 5OTT 1 REMARK REVDAT 2 25-JUL-18 5OTT 1 JRNL REVDAT 1 04-JUL-18 5OTT 0 JRNL AUTH A.ODDO,S.MORTENSEN,H.THOGERSEN,L.DE MARIA,S.HENNEN, JRNL AUTH 2 J.N.MCGUIRE,J.KOFOED,L.LINDEROTH,S.REEDTZ-RUNGE JRNL TITL ALPHA-HELIX OR BETA-TURN? AN INVESTIGATION INTO N-TERMINALLY JRNL TITL 2 CONSTRAINED ANALOGUES OF GLUCAGON-LIKE PEPTIDE 1 (GLP-1) AND JRNL TITL 3 EXENDIN-4. JRNL REF BIOCHEMISTRY V. 57 4148 2018 JRNL REFN ISSN 1520-4995 JRNL PMID 29877701 JRNL DOI 10.1021/ACS.BIOCHEM.8B00105 REMARK 2 REMARK 2 RESOLUTION. 1.92 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (DEV_2689: ???) 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) : 1.92 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 47.38 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 3 NUMBER OF REFLECTIONS : 15001 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.182 REMARK 3 R VALUE (WORKING SET) : 0.180 REMARK 3 FREE R VALUE : 0.209 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.560 REMARK 3 FREE R VALUE TEST SET COUNT : 2704 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 47.3963 - 5.1213 1.00 1366 141 0.1961 0.2030 REMARK 3 2 5.1213 - 4.0657 0.98 1350 136 0.1585 0.1812 REMARK 3 3 4.0657 - 3.5519 0.98 1315 140 0.1566 0.1817 REMARK 3 4 3.5519 - 3.2273 0.98 1332 144 0.1610 0.1882 REMARK 3 5 3.2273 - 2.9960 0.99 1336 140 0.1788 0.2274 REMARK 3 6 2.9960 - 2.8194 1.00 1371 149 0.1898 0.2080 REMARK 3 7 2.8194 - 2.6782 0.99 1353 142 0.1799 0.2191 REMARK 3 8 2.6782 - 2.5616 1.00 1341 144 0.1703 0.2166 REMARK 3 9 2.5616 - 2.4630 0.99 1351 142 0.1713 0.1868 REMARK 3 10 2.4630 - 2.3780 1.00 1365 142 0.1743 0.2046 REMARK 3 11 2.3780 - 2.3037 1.00 1356 140 0.1785 0.2468 REMARK 3 12 2.3037 - 2.2378 1.00 1338 145 0.1887 0.2318 REMARK 3 13 2.2378 - 2.1789 1.00 1357 146 0.1638 0.1720 REMARK 3 14 2.1789 - 2.1257 0.99 1346 142 0.1889 0.2277 REMARK 3 15 2.1257 - 2.0774 1.00 1347 147 0.1869 0.2369 REMARK 3 16 2.0774 - 2.0332 0.99 1362 146 0.2106 0.2247 REMARK 3 17 2.0332 - 1.9925 1.00 1334 140 0.1956 0.2467 REMARK 3 18 1.9925 - 1.9549 0.97 1347 142 0.2282 0.2734 REMARK 3 19 1.9549 - 1.9200 0.97 1308 136 0.3435 0.3438 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) : 0.170 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 21.350 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 : 0.015 1132 REMARK 3 ANGLE : 1.253 1542 REMARK 3 CHIRALITY : 0.070 151 REMARK 3 PLANARITY : 0.009 201 REMARK 3 DIHEDRAL : 7.852 660 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 5OTT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 22-AUG-17. REMARK 100 THE DEPOSITION ID IS D_1200004586. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 24-FEB-17 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU FR-X REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54187 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 R 1M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XDS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15019 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.920 REMARK 200 RESOLUTION RANGE LOW (A) : 47.382 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : 12.90 REMARK 200 R MERGE (I) : 0.10300 REMARK 200 R SYM (I) : 0.10800 REMARK 200 FOR THE DATA SET : 19.8000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.92 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.95 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.4 REMARK 200 DATA REDUNDANCY IN SHELL : 12.66 REMARK 200 R MERGE FOR SHELL (I) : 1.14500 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.300 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: 4ZGM REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 54.53 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.71 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M IMIDAZOLE PH 6.5, 1.0 M SODIUM REMARK 280 ACETATE TRIHYDRATE, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE REMARK 280 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -X,Y,-Z REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z+1/2 REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 X+1/2,-Y+1/2,-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 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 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 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 25.84500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 31.46000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 59.27500 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 25.84500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 31.46000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 59.27500 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 25.84500 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 31.46000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 59.27500 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 25.84500 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 31.46000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 59.27500 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: 1310 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 8830 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -12.0 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 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 HOH A 282 LIES ON A SPECIAL POSITION. REMARK 375 HOH B 111 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 ARG A 24 REMARK 465 PRO A 25 REMARK 465 GLN A 26 REMARK 465 GLY A 27 REMARK 465 ALA A 28 REMARK 465 THR A 29 REMARK 465 ALA A 57 REMARK 465 SER A 129 REMARK 465 LYS A 130 REMARK 465 ARG A 131 REMARK 465 GLY A 132 REMARK 465 GLU A 133 REMARK 465 ARG A 134 REMARK 465 SER A 135 REMARK 465 SER A 136 REMARK 465 PRO A 137 REMARK 465 GLU A 138 REMARK 465 GLU A 139 REMARK 465 HIS B 1 REMARK 465 PRO B 38 REMARK 465 SER B 39 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 N HCS B 2 O HOH B 101 1.95 REMARK 500 OE1 GLN A 37 O HOH A 201 1.96 REMARK 500 O HOH A 290 O HOH A 297 2.11 REMARK 500 O HOH A 232 O HOH A 277 2.17 REMARK 500 OE1 GLN A 47 O HOH A 202 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 A 245 O HOH A 266 8444 2.01 REMARK 500 O HOH A 246 O HOH A 273 2555 2.07 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 A 68 -19.43 83.38 REMARK 500 REMARK 500 REMARK: NULL DBREF 5OTT A 24 139 UNP P43220 GLP1R_HUMAN 24 139 DBREF 5OTT B 1 39 UNP P26349 EXE4_HELSU 48 86 SEQADV 5OTT HCS B 2 UNP P26349 GLY 49 ENGINEERED MUTATION SEQADV 5OTT HCS B 5 UNP P26349 THR 52 ENGINEERED MUTATION SEQRES 1 A 116 ARG PRO GLN GLY ALA THR VAL SER LEU TRP GLU THR VAL SEQRES 2 A 116 GLN LYS TRP ARG GLU TYR ARG ARG GLN CYS GLN ARG SER SEQRES 3 A 116 LEU THR GLU ASP PRO PRO PRO ALA THR ASP LEU PHE CYS SEQRES 4 A 116 ASN ARG THR PHE ASP GLU TYR ALA CYS TRP PRO ASP GLY SEQRES 5 A 116 GLU PRO GLY SER PHE VAL ASN VAL SER CYS PRO TRP TYR SEQRES 6 A 116 LEU PRO TRP ALA SER SER VAL PRO GLN GLY HIS VAL TYR SEQRES 7 A 116 ARG PHE CYS THR ALA GLU GLY LEU TRP LEU GLN LYS ASP SEQRES 8 A 116 ASN SER SER LEU PRO TRP ARG ASP LEU SER GLU CYS GLU SEQRES 9 A 116 GLU SER LYS ARG GLY GLU ARG SER SER PRO GLU GLU SEQRES 1 B 39 HIS HCS GLU GLY HCS PHE THR SER ASP LEU SER LYS GLN SEQRES 2 B 39 MET GLU GLU GLU ALA VAL ARG LEU PHE ILE GLU TRP LEU SEQRES 3 B 39 LYS ASN GLY GLY PRO SER SER GLY ALA PRO PRO PRO SER HET HCS B 2 7 HET HCS B 5 7 HETNAM HCS 2-AMINO-4-MERCAPTO-BUTYRIC ACID HETSYN HCS L-HOMOCYSTEINE FORMUL 2 HCS 2(C4 H9 N O2 S) FORMUL 3 HOH *118(H2 O) HELIX 1 AA1 SER A 31 ASP A 53 1 23 HELIX 2 AA2 TRP A 91 VAL A 95 5 5 HELIX 3 AA3 LEU A 123 GLU A 127 5 5 HELIX 4 AA4 ASP B 9 ASN B 28 1 20 HELIX 5 AA5 GLY B 29 SER B 33 5 5 SHEET 1 AA1 2 THR A 65 PHE A 66 0 SHEET 2 AA1 2 CYS A 71 TRP A 72 -1 O TRP A 72 N THR A 65 SHEET 1 AA2 2 SER A 79 SER A 84 0 SHEET 2 AA2 2 HIS A 99 CYS A 104 -1 O VAL A 100 N VAL A 83 SSBOND 1 CYS A 46 CYS A 71 1555 1555 2.13 SSBOND 2 CYS A 62 CYS A 104 1555 1555 2.02 SSBOND 3 CYS A 85 CYS A 126 1555 1555 1.96 SSBOND 4 HCS B 2 HCS B 5 1555 1555 2.01 LINK C HCS B 2 N GLU B 3 1555 1555 1.32 LINK C GLY B 4 N HCS B 5 1555 1555 1.33 LINK C HCS B 5 N PHE B 6 1555 1555 1.33 CRYST1 51.690 62.920 118.550 90.00 90.00 90.00 I 2 2 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 0.019346 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015893 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008435 0.00000