HEADER SIGNALING PROTEIN 16-OCT-19 6T5H TITLE HUMAN 14-3-3 SIGMA FUSED TO THE STARD1 PEPTIDE INCLUDING TITLE 2 PHOSPHOSERINE-57 COMPND MOL_ID: 1; COMPND 2 MOLECULE: 14-3-3 PROTEIN SIGMA,STEROIDOGENIC ACUTE REGULATORY COMPND 3 PROTEIN, MITOCHONDRIAL; COMPND 4 CHAIN: A, B; COMPND 5 SYNONYM: EPITHELIAL CELL MARKER PROTEIN 1,STRATIFIN,STAR,START COMPND 6 DOMAIN-CONTAINING PROTEIN 1,STARD1; COMPND 7 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: SFN, HME1, STAR, STARD1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS 14-3-3 PROTEINS, PROTEIN CHIMERA, PHOSPHOPEPTIDE-BINDING, SIGNALING KEYWDS 2 PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR N.N.SLUCHANKO,K.V.TUGAEVA,J.TITTERINGTON,A.A.ANTSON REVDAT 3 24-JAN-24 6T5H 1 REMARK REVDAT 2 29-DEC-21 6T5H 1 JRNL REVDAT 1 18-NOV-20 6T5H 0 JRNL AUTH K.V.TUGAEVA,J.TITTERINGTON,D.V.SOTNIKOV,E.G.MAKSIMOV, JRNL AUTH 2 A.A.ANTSON,N.N.SLUCHANKO JRNL TITL MOLECULAR BASIS FOR THE RECOGNITION OF STEROIDOGENIC ACUTE JRNL TITL 2 REGULATORY PROTEIN BY THE 14-3-3 PROTEIN FAMILY. JRNL REF FEBS J. V. 287 3944 2020 JRNL REFN ISSN 1742-464X JRNL PMID 32633081 JRNL DOI 10.1111/FEBS.15474 REMARK 2 REMARK 2 RESOLUTION. 2.04 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : BUSTER 2.10.3 REMARK 3 AUTHORS : BRICOGNE,BLANC,BRANDL,FLENSBURG,KELLER, REMARK 3 : PACIOREK,ROVERSI,SHARFF,SMART,VONRHEIN, REMARK 3 : WOMACK,MATTHEWS,TEN EYCK,TRONRUD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.04 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 49.13 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 3 NUMBER OF REFLECTIONS : 33161 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.187 REMARK 3 R VALUE (WORKING SET) : 0.185 REMARK 3 FREE R VALUE : 0.229 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.920 REMARK 3 FREE R VALUE TEST SET COUNT : 1632 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 50 REMARK 3 BIN RESOLUTION RANGE HIGH (ANGSTROMS) : 2.04 REMARK 3 BIN RESOLUTION RANGE LOW (ANGSTROMS) : 2.05 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.84 REMARK 3 REFLECTIONS IN BIN (WORKING + TEST SET) : 664 REMARK 3 BIN R VALUE (WORKING + TEST SET) : 0.2470 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 635 REMARK 3 BIN R VALUE (WORKING SET) : 0.2446 REMARK 3 BIN FREE R VALUE : 0.3055 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.37 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 29 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.000 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3749 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 35 REMARK 3 SOLVENT ATOMS : 345 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 36.15 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 45.26 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 11.85560 REMARK 3 B22 (A**2) : 1.70690 REMARK 3 B33 (A**2) : -13.56240 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -3.03180 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.270 REMARK 3 DPI (BLOW EQ-10) BASED ON R VALUE (A) : 0.196 REMARK 3 DPI (BLOW EQ-9) BASED ON FREE R VALUE (A) : 0.167 REMARK 3 DPI (CRUICKSHANK) BASED ON R VALUE (A) : 0.189 REMARK 3 DPI (CRUICKSHANK) BASED ON FREE R VALUE (A) : 0.165 REMARK 3 REMARK 3 REFERENCES: BLOW, D. (2002) ACTA CRYST D58, 792-797 REMARK 3 CRUICKSHANK, D.W.J. (1999) ACTA CRYST D55, 583-601 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.937 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.915 REMARK 3 REMARK 3 NUMBER OF GEOMETRIC FUNCTION TERMS DEFINED : 15 REMARK 3 TERM COUNT WEIGHT FUNCTION. REMARK 3 BOND LENGTHS : 3888 ; 2.000 ; HARMONIC REMARK 3 BOND ANGLES : 5262 ; 2.000 ; HARMONIC REMARK 3 TORSION ANGLES : 1421 ; 2.000 ; SINUSOIDAL REMARK 3 TRIGONAL CARBON PLANES : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES : 662 ; 5.000 ; HARMONIC REMARK 3 ISOTROPIC THERMAL FACTORS : 3888 ; 20.000 ; HARMONIC REMARK 3 BAD NON-BONDED CONTACTS : NULL ; NULL ; NULL REMARK 3 IMPROPER TORSIONS : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES : NULL ; NULL ; NULL REMARK 3 CHIRAL IMPROPER TORSION : 490 ; 5.000 ; SEMIHARMONIC REMARK 3 SUM OF OCCUPANCIES : NULL ; NULL ; NULL REMARK 3 UTILITY DISTANCES : NULL ; NULL ; NULL REMARK 3 UTILITY ANGLES : NULL ; NULL ; NULL REMARK 3 UTILITY TORSION : NULL ; NULL ; NULL REMARK 3 IDEAL-DIST CONTACT TERM : 4855 ; 4.000 ; SEMIHARMONIC REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 0.99 REMARK 3 PEPTIDE OMEGA TORSION ANGLES (DEGREES) : 2.96 REMARK 3 OTHER TORSION ANGLES (DEGREES) : 18.25 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 6T5H COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 16-OCT-19. REMARK 100 THE DEPOSITION ID IS D_1292104887. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-JUL-18 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : DIAMOND REMARK 200 BEAMLINE : I04-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.915870 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M-F REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XIA2 REMARK 200 DATA SCALING SOFTWARE : XIA2 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 33161 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.040 REMARK 200 RESOLUTION RANGE LOW (A) : 49.140 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 200 DATA REDUNDANCY : 4.200 REMARK 200 R MERGE (I) : 0.10600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 8.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.04 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.11 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.8 REMARK 200 DATA REDUNDANCY IN SHELL : 4.10 REMARK 200 R MERGE FOR SHELL (I) : 1.31000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: 5OM0 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.32 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.38 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.09 M NPS MIX (0.3 M SODIUM NITRATE, REMARK 280 0.3 M SODIUM PHOSPHATE DIBASIC, 0.3 M AMMONIUM SULFATE), 0.1 M REMARK 280 BUFFER MIX (1.0 M IMIDAZOLE; MES), 25% V/V MPD; 25% POLYETHYLENE REMARK 280 GLYCOL 1000; 25% W/V POLYETHYLENE GLYCOL 3350, PH 6.5, VAPOR REMARK 280 DIFFUSION, TEMPERATURE 279K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 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+1/2,Y+1/2,Z 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 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 45.08500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 39.17500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 45.08500 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 39.17500 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: 3110 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 25250 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 6.0 KCAL/MOL 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 350 APPLY THE FOLLOWING TO CHAINS: B REMARK 350 BIOMT1 2 -1.000000 0.000000 0.000000 31.32860 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 -39.17500 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 74.80565 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 GLY A -2 REMARK 465 GLU A 71 REMARK 465 GLU A 72 REMARK 465 GLY A 73 REMARK 465 SER A 74 REMARK 465 ALA A 75 REMARK 465 ALA A 76 REMARK 465 GLY A 234 REMARK 465 SER A 235 REMARK 465 LEU A 236 REMARK 465 ARG A 237 REMARK 465 GLY A 243 REMARK 465 SER A 244 REMARK 465 ARG A 245 REMARK 465 GLY B 232 REMARK 465 SER B 233 REMARK 465 GLY B 234 REMARK 465 SER B 235 REMARK 465 GLY B 243 REMARK 465 SER B 244 REMARK 465 ARG B 245 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 ARG A 18 78.14 -109.17 REMARK 500 ARG B 18 77.28 -108.44 REMARK 500 THR B 136 -53.17 -129.08 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue PGE A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue PGE A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue IMD A 303 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue PGE B 301 DBREF 6T5H A 1 231 UNP P31947 1433S_HUMAN 1 231 DBREF 6T5H A 237 245 UNP P49675 STAR_HUMAN 54 62 DBREF 6T5H B 1 231 UNP P31947 1433S_HUMAN 1 231 DBREF 6T5H B 237 245 UNP P49675 STAR_HUMAN 54 62 SEQADV 6T5H GLY A -2 UNP P31947 EXPRESSION TAG SEQADV 6T5H PRO A -1 UNP P31947 EXPRESSION TAG SEQADV 6T5H HIS A 0 UNP P31947 EXPRESSION TAG SEQADV 6T5H ALA A 75 UNP P31947 GLU 75 ENGINEERED MUTATION SEQADV 6T5H ALA A 76 UNP P31947 GLU 76 ENGINEERED MUTATION SEQADV 6T5H ALA A 77 UNP P31947 LYS 77 ENGINEERED MUTATION SEQADV 6T5H GLY A 232 UNP P31947 LINKER SEQADV 6T5H SER A 233 UNP P31947 LINKER SEQADV 6T5H GLY A 234 UNP P31947 LINKER SEQADV 6T5H SER A 235 UNP P31947 LINKER SEQADV 6T5H LEU A 236 UNP P31947 LINKER SEQADV 6T5H GLY B -2 UNP P31947 EXPRESSION TAG SEQADV 6T5H PRO B -1 UNP P31947 EXPRESSION TAG SEQADV 6T5H HIS B 0 UNP P31947 EXPRESSION TAG SEQADV 6T5H ALA B 75 UNP P31947 GLU 75 ENGINEERED MUTATION SEQADV 6T5H ALA B 76 UNP P31947 GLU 76 ENGINEERED MUTATION SEQADV 6T5H ALA B 77 UNP P31947 LYS 77 ENGINEERED MUTATION SEQADV 6T5H GLY B 232 UNP P31947 LINKER SEQADV 6T5H SER B 233 UNP P31947 LINKER SEQADV 6T5H GLY B 234 UNP P31947 LINKER SEQADV 6T5H SER B 235 UNP P31947 LINKER SEQADV 6T5H LEU B 236 UNP P31947 LINKER SEQRES 1 A 248 GLY PRO HIS MET GLU ARG ALA SER LEU ILE GLN LYS ALA SEQRES 2 A 248 LYS LEU ALA GLU GLN ALA GLU ARG TYR GLU ASP MET ALA SEQRES 3 A 248 ALA PHE MET LYS GLY ALA VAL GLU LYS GLY GLU GLU LEU SEQRES 4 A 248 SER CYS GLU GLU ARG ASN LEU LEU SER VAL ALA TYR LYS SEQRES 5 A 248 ASN VAL VAL GLY GLY GLN ARG ALA ALA TRP ARG VAL LEU SEQRES 6 A 248 SER SER ILE GLU GLN LYS SER ASN GLU GLU GLY SER ALA SEQRES 7 A 248 ALA ALA GLY PRO GLU VAL ARG GLU TYR ARG GLU LYS VAL SEQRES 8 A 248 GLU THR GLU LEU GLN GLY VAL CYS ASP THR VAL LEU GLY SEQRES 9 A 248 LEU LEU ASP SER HIS LEU ILE LYS GLU ALA GLY ASP ALA SEQRES 10 A 248 GLU SER ARG VAL PHE TYR LEU LYS MET LYS GLY ASP TYR SEQRES 11 A 248 TYR ARG TYR LEU ALA GLU VAL ALA THR GLY ASP ASP LYS SEQRES 12 A 248 LYS ARG ILE ILE ASP SER ALA ARG SER ALA TYR GLN GLU SEQRES 13 A 248 ALA MET ASP ILE SER LYS LYS GLU MET PRO PRO THR ASN SEQRES 14 A 248 PRO ILE ARG LEU GLY LEU ALA LEU ASN PHE SER VAL PHE SEQRES 15 A 248 HIS TYR GLU ILE ALA ASN SER PRO GLU GLU ALA ILE SER SEQRES 16 A 248 LEU ALA LYS THR THR PHE ASP GLU ALA MET ALA ASP LEU SEQRES 17 A 248 HIS THR LEU SER GLU ASP SER TYR LYS ASP SER THR LEU SEQRES 18 A 248 ILE MET GLN LEU LEU ARG ASP ASN LEU THR LEU TRP THR SEQRES 19 A 248 GLY SER GLY SER LEU ARG ARG SER SEP LEU LEU GLY SER SEQRES 20 A 248 ARG SEQRES 1 B 248 GLY PRO HIS MET GLU ARG ALA SER LEU ILE GLN LYS ALA SEQRES 2 B 248 LYS LEU ALA GLU GLN ALA GLU ARG TYR GLU ASP MET ALA SEQRES 3 B 248 ALA PHE MET LYS GLY ALA VAL GLU LYS GLY GLU GLU LEU SEQRES 4 B 248 SER CYS GLU GLU ARG ASN LEU LEU SER VAL ALA TYR LYS SEQRES 5 B 248 ASN VAL VAL GLY GLY GLN ARG ALA ALA TRP ARG VAL LEU SEQRES 6 B 248 SER SER ILE GLU GLN LYS SER ASN GLU GLU GLY SER ALA SEQRES 7 B 248 ALA ALA GLY PRO GLU VAL ARG GLU TYR ARG GLU LYS VAL SEQRES 8 B 248 GLU THR GLU LEU GLN GLY VAL CYS ASP THR VAL LEU GLY SEQRES 9 B 248 LEU LEU ASP SER HIS LEU ILE LYS GLU ALA GLY ASP ALA SEQRES 10 B 248 GLU SER ARG VAL PHE TYR LEU LYS MET LYS GLY ASP TYR SEQRES 11 B 248 TYR ARG TYR LEU ALA GLU VAL ALA THR GLY ASP ASP LYS SEQRES 12 B 248 LYS ARG ILE ILE ASP SER ALA ARG SER ALA TYR GLN GLU SEQRES 13 B 248 ALA MET ASP ILE SER LYS LYS GLU MET PRO PRO THR ASN SEQRES 14 B 248 PRO ILE ARG LEU GLY LEU ALA LEU ASN PHE SER VAL PHE SEQRES 15 B 248 HIS TYR GLU ILE ALA ASN SER PRO GLU GLU ALA ILE SER SEQRES 16 B 248 LEU ALA LYS THR THR PHE ASP GLU ALA MET ALA ASP LEU SEQRES 17 B 248 HIS THR LEU SER GLU ASP SER TYR LYS ASP SER THR LEU SEQRES 18 B 248 ILE MET GLN LEU LEU ARG ASP ASN LEU THR LEU TRP THR SEQRES 19 B 248 GLY SER GLY SER LEU ARG ARG SER SEP LEU LEU GLY SER SEQRES 20 B 248 ARG MODRES 6T5H SEP A 240 SER MODIFIED RESIDUE MODRES 6T5H SEP B 240 SER MODIFIED RESIDUE HET SEP A 240 10 HET SEP B 240 10 HET PGE A 301 24 HET PGE A 302 24 HET IMD A 303 10 HET PGE B 301 24 HETNAM SEP PHOSPHOSERINE HETNAM PGE TRIETHYLENE GLYCOL HETNAM IMD IMIDAZOLE HETSYN SEP PHOSPHONOSERINE FORMUL 1 SEP 2(C3 H8 N O6 P) FORMUL 3 PGE 3(C6 H14 O4) FORMUL 5 IMD C3 H5 N2 1+ FORMUL 7 HOH *345(H2 O) HELIX 1 AA1 GLU A 2 ALA A 16 1 15 HELIX 2 AA2 ARG A 18 GLU A 31 1 14 HELIX 3 AA3 SER A 37 ASN A 70 1 34 HELIX 4 AA4 PRO A 79 HIS A 106 1 28 HELIX 5 AA5 ASP A 113 ALA A 135 1 23 HELIX 6 AA6 THR A 136 MET A 162 1 27 HELIX 7 AA7 ASN A 166 ILE A 183 1 18 HELIX 8 AA8 SER A 186 ALA A 203 1 18 HELIX 9 AA9 ASP A 204 LEU A 208 5 5 HELIX 10 AB1 SER A 209 GLY A 232 1 24 HELIX 11 AB2 GLU B 2 ALA B 16 1 15 HELIX 12 AB3 ARG B 18 GLU B 31 1 14 HELIX 13 AB4 SER B 37 GLU B 72 1 36 HELIX 14 AB5 PRO B 79 HIS B 106 1 28 HELIX 15 AB6 HIS B 106 ALA B 111 1 6 HELIX 16 AB7 ASP B 113 ALA B 135 1 23 HELIX 17 AB8 GLY B 137 MET B 162 1 26 HELIX 18 AB9 ASN B 166 ILE B 183 1 18 HELIX 19 AC1 SER B 186 ALA B 203 1 18 HELIX 20 AC2 ASP B 204 LEU B 208 5 5 HELIX 21 AC3 SER B 209 THR B 231 1 23 LINK C SER A 239 N SEP A 240 1555 1555 1.33 LINK C SEP A 240 N LEU A 241 1555 1555 1.35 LINK C SER B 239 N SEP B 240 1555 1555 1.33 LINK C SEP B 240 N LEU B 241 1555 1555 1.34 SITE 1 AC1 7 GLU A 20 GLU A 91 HOH A 401 HOH A 440 SITE 2 AC1 7 GLU B 17 TYR B 19 GLU B 20 SITE 1 AC2 7 GLU A 17 ARG A 18 TYR A 19 GLU A 20 SITE 2 AC2 7 ASP A 21 GLU B 20 HOH B 528 SITE 1 AC3 3 PHE A 198 GLN A 221 GLN B 221 SITE 1 AC4 6 LYS A 160 ASP B 145 ARG B 148 SER B 149 SITE 2 AC4 6 GLN B 152 GLU B 189 CRYST1 90.170 78.350 76.060 90.00 100.42 90.00 C 1 2 1 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 0.011090 0.000000 0.002039 0.00000 SCALE2 0.000000 0.012763 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013368 0.00000