HEADER TRANSFERASE 09-NOV-99 1DD9 TITLE STRUCTURE OF THE DNAG CATALYTIC CORE COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA PRIMASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: 36 KDA CATALYTIC CORE DOMAIN; COMPND 5 SYNONYM: DNAG; COMPND 6 EC: 2.7.7.-; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: SG13009; SOURCE 7 EXPRESSION_SYSTEM_PLASMID: PREP4 DERIVATIVE KEYWDS TOPRIM, 3-HELIX BUNDLE, DNA-BINDING PROTEIN, RNA POLYMERASE, KEYWDS 2 REPLICATION PROTEIN, PRIMASE, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR J.L.KECK,D.D.ROCHE,A.S.LYNCH,J.M.BERGER REVDAT 4 07-FEB-24 1DD9 1 REMARK SEQADV LINK REVDAT 3 31-JAN-18 1DD9 1 REMARK REVDAT 2 24-FEB-09 1DD9 1 VERSN REVDAT 1 07-APR-00 1DD9 0 JRNL AUTH J.L.KECK,D.D.ROCHE,A.S.LYNCH,J.M.BERGER JRNL TITL STRUCTURE OF THE RNA POLYMERASE DOMAIN OF E. COLI PRIMASE. JRNL REF SCIENCE V. 287 2482 2000 JRNL REFN ISSN 0036-8075 JRNL PMID 10741967 JRNL DOI 10.1126/SCIENCE.287.5462.2482 REMARK 2 REMARK 2 RESOLUTION. 1.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 43387 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.231 REMARK 3 FREE R VALUE : 0.276 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 4339 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2458 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 234 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 22.00 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 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 1.400 ; NULL REMARK 3 ANGLE DISTANCE (A) : 0.006 ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1DD9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-NOV-99. REMARK 100 THE DEPOSITION ID IS D_1000009990. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-JUN-99 REMARK 200 TEMPERATURE (KELVIN) : 110.0 REMARK 200 PH : 5.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 5.0.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.00 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 43387 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.2 REMARK 200 DATA REDUNDANCY : 4.200 REMARK 200 R MERGE (I) : 0.03600 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 27.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.66 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.9 REMARK 200 DATA REDUNDANCY IN SHELL : 2.50 REMARK 200 R MERGE FOR SHELL (I) : 0.17700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: MLPHARE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.88 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.15 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 18-21% PEG4000, 5% PEG200, 30% REMARK 280 ETHYLENE GLYCOL, 0.2M AMMONIUM ACETATE, 0.05M SODIUM ACETATE, PH REMARK 280 5.0, 0.1% DIOXANE, 2-8 MM SRCL2, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 293.0K 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 19.17000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 74.22500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 28.93500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 74.22500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 19.17000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 28.93500 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: MONOMERIC 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 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 A 96 REMARK 465 ARG A 97 REMARK 465 GLY A 98 REMARK 465 SER A 99 REMARK 465 HIS A 100 REMARK 465 HIS A 101 REMARK 465 HIS A 102 REMARK 465 HIS A 103 REMARK 465 HIS A 104 REMARK 465 HIS A 105 REMARK 465 GLY A 106 REMARK 465 SER A 107 REMARK 465 GLY A 108 REMARK 465 SER A 109 REMARK 465 MET A 110 REMARK 465 HIS A 111 REMARK 465 GLN A 112 REMARK 465 ARG A 113 REMARK 465 GLN A 114 REMARK 465 ASP A 192 REMARK 465 GLN A 193 REMARK 465 GLY A 194 REMARK 465 THR A 287 REMARK 465 ARG A 429 REMARK 465 LEU A 430 REMARK 465 MET A 431 REMARK 465 PRO A 432 REMARK 465 LYS A 433 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 OG1 THR A 125 O HOH A 700 1.96 REMARK 500 OD2 ASP A 226 O HOH A 691 1.98 REMARK 500 OE1 GLU A 344 OG1 THR A 348 2.05 REMARK 500 NH1 ARG A 260 OE2 GLU A 363 2.12 REMARK 500 OD1 ASP A 269 O HOH A 614 2.12 REMARK 500 OG SER A 138 O HOH A 554 2.14 REMARK 500 OD1 ASP A 316 O HOH A 692 2.15 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 203 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 THR A 227 CA - C - O ANGL. DEV. = -21.0 DEGREES REMARK 500 PRO A 228 CA - N - CD ANGL. DEV. = -10.1 DEGREES REMARK 500 PRO A 228 N - CA - CB ANGL. DEV. = 7.7 DEGREES REMARK 500 PRO A 228 N - CD - CG ANGL. DEV. = 8.9 DEGREES REMARK 500 ARG A 320 NE - CZ - NH2 ANGL. DEV. = -3.5 DEGREES REMARK 500 ARG A 333 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 ARG A 333 NE - CZ - NH2 ANGL. DEV. = -3.2 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 166 26.30 -142.13 REMARK 500 PRO A 228 141.43 -31.60 REMARK 500 ASN A 255 102.83 -178.22 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 THR A 227 PRO A 228 -66.05 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY REMARK 500 REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 500 I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI ANGLE REMARK 500 THR A 227 -32.48 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 SR A 501 SR REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 265 O REMARK 620 2 SER A 284 O 84.2 REMARK 620 3 SER A 284 OG 132.0 61.9 REMARK 620 4 HOH A 509 O 81.1 86.9 65.1 REMARK 620 5 HOH A 660 O 58.5 82.3 137.5 138.9 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SR A 501 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1DDE RELATED DB: PDB DBREF 1DD9 A 111 433 UNP P0ABS5 PRIM_ECOLI 111 433 SEQADV 1DD9 MET A 96 UNP P0ABS5 GLU 96 EXPRESSION TAG SEQADV 1DD9 ARG A 97 UNP P0ABS5 VAL 97 EXPRESSION TAG SEQADV 1DD9 GLY A 98 UNP P0ABS5 PRO 98 EXPRESSION TAG SEQADV 1DD9 SER A 99 UNP P0ABS5 PHE 99 EXPRESSION TAG SEQADV 1DD9 HIS A 100 UNP P0ABS5 GLU 100 EXPRESSION TAG SEQADV 1DD9 HIS A 101 UNP P0ABS5 ALA 101 EXPRESSION TAG SEQADV 1DD9 HIS A 102 UNP P0ABS5 GLY 100 EXPRESSION TAG SEQADV 1DD9 HIS A 103 UNP P0ABS5 SER 101 EXPRESSION TAG SEQADV 1DD9 HIS A 104 UNP P0ABS5 GLY 100 EXPRESSION TAG SEQADV 1DD9 HIS A 105 UNP P0ABS5 PRO 101 EXPRESSION TAG SEQADV 1DD9 GLY A 106 UNP P0ABS5 SER 100 EXPRESSION TAG SEQADV 1DD9 SER A 107 UNP P0ABS5 GLN 101 EXPRESSION TAG SEQADV 1DD9 GLY A 108 UNP P0ABS5 ILE 100 EXPRESSION TAG SEQADV 1DD9 SER A 109 UNP P0ABS5 GLU 101 EXPRESSION TAG SEQADV 1DD9 MET A 110 UNP P0ABS5 ARG 100 EXPRESSION TAG SEQRES 1 A 338 MET ARG GLY SER HIS HIS HIS HIS HIS HIS GLY SER GLY SEQRES 2 A 338 SER MET HIS GLN ARG GLN THR LEU TYR GLN LEU MET ASP SEQRES 3 A 338 GLY LEU ASN THR PHE TYR GLN GLN SER LEU GLN GLN PRO SEQRES 4 A 338 VAL ALA THR SER ALA ARG GLN TYR LEU GLU LYS ARG GLY SEQRES 5 A 338 LEU SER HIS GLU VAL ILE ALA ARG PHE ALA ILE GLY PHE SEQRES 6 A 338 ALA PRO PRO GLY TRP ASP ASN VAL LEU LYS ARG PHE GLY SEQRES 7 A 338 GLY ASN PRO GLU ASN ARG GLN SER LEU ILE ASP ALA GLY SEQRES 8 A 338 MET LEU VAL THR ASN ASP GLN GLY ARG SER TYR ASP ARG SEQRES 9 A 338 PHE ARG GLU ARG VAL MET PHE PRO ILE ARG ASP LYS ARG SEQRES 10 A 338 GLY ARG VAL ILE GLY PHE GLY GLY ARG VAL LEU GLY ASN SEQRES 11 A 338 ASP THR PRO LYS TYR LEU ASN SER PRO GLU THR ASP ILE SEQRES 12 A 338 PHE HIS LYS GLY ARG GLN LEU TYR GLY LEU TYR GLU ALA SEQRES 13 A 338 GLN GLN ASP ASN ALA GLU PRO ASN ARG LEU LEU VAL VAL SEQRES 14 A 338 GLU GLY TYR MET ASP VAL VAL ALA LEU ALA GLN TYR GLY SEQRES 15 A 338 ILE ASN TYR ALA VAL ALA SER LEU GLY THR SER THR THR SEQRES 16 A 338 ALA ASP HIS ILE GLN LEU LEU PHE ARG ALA THR ASN ASN SEQRES 17 A 338 VAL ILE CYS CYS TYR ASP GLY ASP ARG ALA GLY ARG ASP SEQRES 18 A 338 ALA ALA TRP ARG ALA LEU GLU THR ALA LEU PRO TYR MET SEQRES 19 A 338 THR ASP GLY ARG GLN LEU ARG PHE MET PHE LEU PRO ASP SEQRES 20 A 338 GLY GLU ASP PRO ASP THR LEU VAL ARG LYS GLU GLY LYS SEQRES 21 A 338 GLU ALA PHE GLU ALA ARG MET GLU GLN ALA MET PRO LEU SEQRES 22 A 338 SER ALA PHE LEU PHE ASN SER LEU MET PRO GLN VAL ASP SEQRES 23 A 338 LEU SER THR PRO ASP GLY ARG ALA ARG LEU SER THR LEU SEQRES 24 A 338 ALA LEU PRO LEU ILE SER GLN VAL PRO GLY GLU THR LEU SEQRES 25 A 338 ARG ILE TYR LEU ARG GLN GLU LEU GLY ASN LYS LEU GLY SEQRES 26 A 338 ILE LEU ASP ASP SER GLN LEU GLU ARG LEU MET PRO LYS HET SR A 501 1 HETNAM SR STRONTIUM ION FORMUL 2 SR SR 2+ FORMUL 3 HOH *234(H2 O) HELIX 1 1 THR A 115 GLN A 132 1 18 HELIX 2 2 GLN A 133 VAL A 135 5 3 HELIX 3 3 ALA A 136 ARG A 146 1 11 HELIX 4 4 SER A 149 ALA A 157 1 9 HELIX 5 5 ASP A 166 GLY A 173 1 8 HELIX 6 6 ASN A 175 ALA A 185 1 11 HELIX 7 7 GLY A 247 ASP A 254 1 8 HELIX 8 8 GLY A 266 TYR A 276 1 11 HELIX 9 9 THR A 290 THR A 301 1 12 HELIX 10 10 ASP A 311 LEU A 326 1 16 HELIX 11 11 PRO A 327 MET A 329 5 3 HELIX 12 12 ASP A 345 GLY A 354 1 10 HELIX 13 13 GLU A 353 GLU A 363 1 11 HELIX 14 14 LEU A 368 MET A 377 1 10 HELIX 15 15 PRO A 378 VAL A 380 5 3 HELIX 16 16 THR A 384 SER A 400 1 17 HELIX 17 17 GLY A 404 GLY A 420 1 17 HELIX 18 18 ASP A 423 GLU A 428 5 6 SHEET 1 A 4 GLY A 159 ALA A 161 0 SHEET 2 A 4 ARG A 203 ARG A 209 -1 O ARG A 203 N ALA A 161 SHEET 3 A 4 VAL A 215 VAL A 222 -1 N ILE A 216 O ILE A 208 SHEET 4 A 4 TYR A 230 ASN A 232 -1 N LEU A 231 O GLY A 220 SHEET 1 B 2 LEU A 188 THR A 190 0 SHEET 2 B 2 SER A 196 ASP A 198 -1 N TYR A 197 O VAL A 189 SHEET 1 C 5 ALA A 281 ALA A 283 0 SHEET 2 C 5 LEU A 261 VAL A 264 1 O LEU A 262 N VAL A 282 SHEET 3 C 5 ASN A 303 ASP A 309 1 O ASN A 303 N LEU A 261 SHEET 4 C 5 GLN A 334 LEU A 340 1 O GLN A 334 N VAL A 304 SHEET 5 C 5 MET A 366 PRO A 367 -1 N MET A 366 O PHE A 337 LINK O GLU A 265 SR SR A 501 1555 1555 2.53 LINK O SER A 284 SR SR A 501 1555 1555 2.54 LINK OG SER A 284 SR SR A 501 1555 1555 2.81 LINK SR SR A 501 O HOH A 509 1555 1555 2.69 LINK SR SR A 501 O HOH A 660 1555 1555 3.12 SITE 1 AC1 4 GLU A 265 SER A 284 GLY A 286 HOH A 509 CRYST1 38.340 57.870 148.450 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 0.026080 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017280 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006740 0.00000