PDB Short entry for 4DKK HEADER RNA BINDING PROTEIN 03-FEB-12 4DKK TITLE THE X-RAY CRYSTAL STRUCTURE OF THE HUMAN STAU1 SSM-'RBD'5 DOMAIN- TITLE 2 SWAPPED DIMER COMPND MOL_ID: 1; COMPND 2 MOLECULE: DOUBLE-STRANDED RNA-BINDING PROTEIN STAUFEN HOMOLOG 1; COMPND 3 CHAIN: A; COMPND 4 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: STAU, STAU1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS RBD, BETA SHEET, SWAPPING-MOTIF, DIMERIZATION, PROTEIN BINDING, RNA KEYWDS 2 BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR M.L.GLEGHORN REVDAT 2 22-MAY-13 4DKK 1 JRNL REVDAT 1 20-MAR-13 4DKK 0 JRNL AUTH M.L.GLEGHORN,C.GONG,C.L.KIELKOPF,L.E.MAQUAT JRNL TITL STAUFEN1 DIMERIZES THROUGH A CONSERVED MOTIF AND A JRNL TITL 2 DEGENERATE DSRNA-BINDING DOMAIN TO PROMOTE MRNA DECAY. JRNL REF NAT.STRUCT.MOL.BIOL. V. 20 515 2013 JRNL REFN ISSN 1545-9993 JRNL PMID 23524536 JRNL DOI 10.1038/NSMB.2528 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.8.1_1168) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VICENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE- REMARK 3 : KUNSTLEVE,LI-WEI HUNG,ROBERT IMMORMINO, REMARK 3 : TOM IOERGER,AIRLIE MCCOY,ERIK MCKEE,NIGEL REMARK 3 : MORIARTY,REETAL PAI,RANDY READ,JANE REMARK 3 : RICHARDSON,DAVID RICHARDSON,TOD ROMO,JIM REMARK 3 : SACCHETTINI,NICHOLAS SAUTER,JACOB SMITH, REMARK 3 : LAURENT STORONI,TOM TERWILLIGER,PETER REMARK 3 : ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 31.35 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.950 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 10601 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.167 REMARK 3 R VALUE (WORKING SET) : 0.163 REMARK 3 FREE R VALUE : 0.202 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.870 REMARK 3 FREE R VALUE TEST SET COUNT : 1046 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 31.3517 - 3.2521 1.00 1496 136 0.1653 0.1843 REMARK 3 2 3.2521 - 2.5817 1.00 1373 167 0.1690 0.2249 REMARK 3 3 2.5817 - 2.2554 1.00 1379 141 0.1564 0.1880 REMARK 3 4 2.2554 - 2.0493 1.00 1331 161 0.1464 0.1903 REMARK 3 5 2.0493 - 1.9024 1.00 1311 163 0.1626 0.2141 REMARK 3 6 1.9024 - 1.7902 1.00 1349 138 0.1703 0.2363 REMARK 3 7 1.7902 - 1.7010 1.00 1316 140 0.1762 0.2161 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) : 0.140 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 18.040 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) : 0.39780 REMARK 3 B22 (A**2) : 0.39780 REMARK 3 B33 (A**2) : -0.79560 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.00000 REMARK 3 B23 (A**2) : -0.00000 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 : 0.011 900 REMARK 3 ANGLE : 1.486 1226 REMARK 3 CHIRALITY : 0.077 141 REMARK 3 PLANARITY : 0.007 160 REMARK 3 DIHEDRAL : 15.014 366 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 3 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: chain 'A' and (resid 365 through 389 ) REMARK 3 ORIGIN FOR THE GROUP (A): -10.9229 -6.4610 -17.1041 REMARK 3 T TENSOR REMARK 3 T11: 0.2274 T22: 0.1635 REMARK 3 T33: 0.1123 T12: -0.0449 REMARK 3 T13: -0.0071 T23: 0.0099 REMARK 3 L TENSOR REMARK 3 L11: 6.8947 L22: 7.9168 REMARK 3 L33: 6.3081 L12: -1.7643 REMARK 3 L13: 1.1683 L23: -0.5029 REMARK 3 S TENSOR REMARK 3 S11: 0.0144 S12: -0.6401 S13: -0.6518 REMARK 3 S21: 0.7126 S22: -0.0037 S23: -0.2060 REMARK 3 S31: 0.5150 S32: -0.4885 S33: -0.0465 REMARK 3 TLS GROUP : 2 REMARK 3 SELECTION: chain 'A' and (resid 390 through 407 ) REMARK 3 ORIGIN FOR THE GROUP (A): 1.9658 -8.3034 -13.8027 REMARK 3 T TENSOR REMARK 3 T11: 0.6517 T22: 0.3283 REMARK 3 T33: 0.5044 T12: 0.0662 REMARK 3 T13: -0.2496 T23: 0.0726 REMARK 3 L TENSOR REMARK 3 L11: 0.1398 L22: 4.2720 REMARK 3 L33: 1.5233 L12: 0.1637 REMARK 3 L13: -0.3754 L23: -0.9656 REMARK 3 S TENSOR REMARK 3 S11: 0.4242 S12: -0.8041 S13: -0.5914 REMARK 3 S21: 1.1201 S22: 0.3119 S23: -0.9565 REMARK 3 S31: 1.1018 S32: 0.6452 S33: -0.5065 REMARK 3 TLS GROUP : 3 REMARK 3 SELECTION: chain 'A' and (resid 408 through 476 ) REMARK 3 ORIGIN FOR THE GROUP (A): 6.2689 13.7762 -7.6656 REMARK 3 T TENSOR REMARK 3 T11: 0.0656 T22: 0.0884 REMARK 3 T33: 0.1250 T12: 0.0145 REMARK 3 T13: -0.0126 T23: 0.0052 REMARK 3 L TENSOR REMARK 3 L11: 2.7516 L22: 2.3086 REMARK 3 L33: 6.6872 L12: 0.1636 REMARK 3 L13: 1.5909 L23: 1.1041 REMARK 3 S TENSOR REMARK 3 S11: -0.0836 S12: 0.0024 S13: -0.0112 REMARK 3 S21: -0.0404 S22: 0.0585 S23: -0.0903 REMARK 3 S31: -0.2614 S32: -0.0565 S33: 0.0282 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 4DKK COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-FEB-12. REMARK 100 THE RCSB ID CODE IS RCSB070445. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-APR-10 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97932 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 325 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 10665 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 13.800 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.08500 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 28.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.76 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.7 REMARK 200 DATA REDUNDANCY IN SHELL : 13.30 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.26300 REMARK 200 <I/SIGMA(I)> FOR SHELL : 10.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 31.84 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.80 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: DROP:130 MM CITRIC ACID PH 2.5, 26% REMARK 280 (W/V) PEG 6000 (FINAL PH OF 4), RESERVOIR:100 MM CITRIC ACID PH REMARK 280 2.5, 35% PEG 6000, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 291.15K 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 43.04300 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 22.87050 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 22.87050 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 21.52150 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 22.87050 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 22.87050 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 64.56450 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 22.87050 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 22.87050 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 21.52150 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 22.87050 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 22.87050 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 64.56450 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 43.04300 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: 2820 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13620 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -19.0 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 BIOMT1 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 -43.04300 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 362 REMARK 465 PRO A 363 REMARK 465 LEU A 364 REMARK 465 SER A 397 REMARK 465 GLY A 398 REMARK 465 HIS A 399 REMARK 465 VAL A 400 REMARK 465 PRO A 401 REMARK 465 HIS A 402 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 C ILE A 390 H LEU A 391 1.36 REMARK 500 OE1 GLU A 388 O HOH A 662 2.02 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 LEU A 391 C - N - CA ANGL. DEV. = 15.5 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 SER A 444 177.08 170.79 REMARK 500 SER A 450 -167.85 -127.33 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 FLC A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 502 DBREF 4DKK A 367 476 UNP O95793 STAU1_HUMAN 448 557 SEQADV 4DKK GLY A 362 UNP O95793 EXPRESSION TAG SEQADV 4DKK PRO A 363 UNP O95793 EXPRESSION TAG SEQADV 4DKK LEU A 364 UNP O95793 EXPRESSION TAG SEQADV 4DKK GLY A 365 UNP O95793 EXPRESSION TAG SEQADV 4DKK SER A 366 UNP O95793 EXPRESSION TAG SEQRES 1 A 115 GLY PRO LEU GLY SER LYS ALA THR VAL THR ALA MET ILE SEQRES 2 A 115 ALA ARG GLU LEU LEU TYR GLY GLY THR SER PRO THR ALA SEQRES 3 A 115 GLU THR ILE LEU LYS ASN ASN ILE SER SER GLY HIS VAL SEQRES 4 A 115 PRO HIS GLY PRO LEU THR ARG PRO SER GLU GLN LEU ASP SEQRES 5 A 115 TYR LEU SER ARG VAL GLN GLY PHE GLN VAL GLU TYR LYS SEQRES 6 A 115 ASP PHE PRO LYS ASN ASN LYS ASN GLU PHE VAL SER LEU SEQRES 7 A 115 ILE ASN CYS SER SER GLN PRO PRO LEU ILE SER HIS GLY SEQRES 8 A 115 ILE GLY LYS ASP VAL GLU SER CYS HIS ASP MET ALA ALA SEQRES 9 A 115 LEU ASN ILE LEU LYS LEU LEU SER GLU LEU ASP HET FLC A 501 18 HET CL A 502 1 HETNAM FLC CITRATE ANION HETNAM CL CHLORIDE ION FORMUL 2 FLC C6 H5 O7 3- FORMUL 3 CL CL 1- FORMUL 4 HOH *63(H2 O) HELIX 1 1 SER A 366 GLY A 382 1 17 HELIX 2 2 SER A 384 LYS A 392 1 9 HELIX 3 3 ARG A 407 GLY A 420 1 14 HELIX 4 4 ASP A 456 SER A 473 1 18 SHEET 1 A 3 VAL A 423 PHE A 428 0 SHEET 2 A 3 PHE A 436 CYS A 442 -1 O LEU A 439 N LYS A 426 SHEET 3 A 3 LEU A 448 GLY A 454 -1 O GLY A 454 N PHE A 436 CISPEP 1 GLN A 445 PRO A 446 0 -5.93 SITE 1 AC1 9 ARG A 376 ASN A 394 ASN A 432 LYS A 433 SITE 2 AC1 9 SER A 450 HIS A 451 ASP A 476 HOH A 612 SITE 3 AC1 9 HOH A 617 SITE 1 AC2 3 PRO A 429 LYS A 430 HOH A 605 CRYST1 45.741 45.741 86.086 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 0.021862 0.000000 0.000000 0.00000 SCALE2 0.000000 0.021862 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011616 0.00000