HEADER RNA BINDING PROTEIN 08-AUG-06 2HZC TITLE CRYSTAL STRUCTURE OF THE N-TERMINAL RRM OF THE U2AF LARGE SUBUNIT COMPND MOL_ID: 1; COMPND 2 MOLECULE: SPLICING FACTOR U2AF 65 KDA SUBUNIT; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: RRM 1; COMPND 5 SYNONYM: U2 AUXILIARY FACTOR 65 KDA SUBUNIT, U2 SNRNP AUXILIARY COMPND 6 FACTOR LARGE SUBUNIT, HU2AF65; 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: U2AF2, U2AF65; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PGEX-6P KEYWDS RNA SPLICING, RRM, RNA RECOGNITION, ALTERNATIVE CONFORMATION, RNA KEYWDS 2 BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR K.R.THICKMAN,E.A.SICKMIER,C.L.KIELKOPF REVDAT 5 21-FEB-24 2HZC 1 REMARK SEQADV LINK REVDAT 4 13-JUL-11 2HZC 1 VERSN REVDAT 3 24-FEB-09 2HZC 1 VERSN REVDAT 2 20-FEB-07 2HZC 1 JRNL REVDAT 1 29-AUG-06 2HZC 0 SPRSDE 29-AUG-06 2HZC 2FZR JRNL AUTH K.R.THICKMAN,E.A.SICKMIER,C.L.KIELKOPF JRNL TITL ALTERNATIVE CONFORMATIONS AT THE RNA-BINDING SURFACE OF THE JRNL TITL 2 N-TERMINAL U2AF(65) RNA RECOGNITION MOTIF. JRNL REF J.MOL.BIOL. V. 366 703 2007 JRNL REFN ISSN 0022-2836 JRNL PMID 17188295 JRNL DOI 10.1016/J.JMB.2006.11.077 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH E.A.SICKMIER,K.E.FRATO,S.PARANAWITHANA,H.SHEN,M.R.GREEN, REMARK 1 AUTH 2 C.L.KIELKOPF REMARK 1 TITL STRUCTURAL BASIS OF POLYPYRIMIDINE TRACT RECOGNITION BY THE REMARK 1 TITL 2 ESSENTIAL SPLICING FACTOR U2AF65. REMARK 1 REF MOL.CELL V. 23 49 2006 REMARK 1 REFN ISSN 1097-2765 REMARK 1 PMID 16818232 REMARK 1 DOI 10.1016/J.MOLCEL.2006.05.025 REMARK 2 REMARK 2 RESOLUTION. 1.47 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.47 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.137 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.137 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.226 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 773 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 13454 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 676 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 21 REMARK 3 SOLVENT ATOMS : 192 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : NULL REMARK 3 NUMBER OF RESTRAINTS : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 ANGLE DISTANCES (A) : 2.200 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH & HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2HZC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-AUG-06. REMARK 100 THE DEPOSITION ID IS D_1000038941. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-SEP-03 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 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 : BRUKER AXS MICROSTAR REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54, 0.9798, 0.9795, 0.9568 REMARK 200 MONOCHROMATOR : GOEBEL MIRRORS REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : BRUKER PROTEUM X8 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : PROTEUM PLUS, HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13454 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.470 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 (%) : 92.1 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.47 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.52 REMARK 200 COMPLETENESS FOR SHELL (%) : 82.3 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 37.66 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.97 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 21% PEGMME550, 200MM ZN ACETATE, 0.1M REMARK 280 MES PH 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 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+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 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 92.35500 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 14.53500 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 14.53500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 138.53250 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 14.53500 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 14.53500 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 46.17750 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 14.53500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 14.53500 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 138.53250 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 14.53500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 14.53500 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 46.17750 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 92.35500 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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: PQS 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 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 510 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10660 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -86.0 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 92.35500 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 ZN ZN A 302 LIES ON A SPECIAL POSITION. 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 CE MET A 166 O HOH A 431 1.63 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 145 C - N - CA ANGL. DEV. = 19.3 DEGREES REMARK 500 ARG A 149 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 ARG A 150 CD - NE - CZ ANGL. DEV. = 19.9 DEGREES REMARK 500 ARG A 150 NE - CZ - NH1 ANGL. DEV. = 5.0 DEGREES REMARK 500 ARG A 203 NE - CZ - NH2 ANGL. DEV. = -4.0 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 LEU A 145 127.99 26.84 REMARK 500 GLN A 193 -36.20 -35.79 REMARK 500 ASP A 194 62.98 156.55 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 ACCORDING TO AUTHORS THE LIGAND P6G IS A REMARK 600 FRAGMENT OF PEG MONOMETHYLETHER 550. 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 ZN A 302 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 162 OE1 REMARK 620 2 HOH A 317 O 145.3 REMARK 620 3 HOH A 317 O 96.2 82.2 REMARK 620 4 HOH A 390 O 60.6 122.3 154.8 REMARK 620 5 HOH A 390 O 60.5 86.1 74.6 99.2 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 303 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 163 OE2 REMARK 620 2 ASP A 167 OD1 106.6 REMARK 620 3 ASP A 167 OD2 96.3 51.2 REMARK 620 4 PRO A 229 O 97.8 142.6 99.1 REMARK 620 5 HOH A 329 O 94.4 81.0 132.0 125.5 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 ZN A 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 303 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE P6G A 301 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2G4B RELATED DB: PDB REMARK 900 STRUCTURE OF U2AF65 VARIANT WITH POLYURIDINE TRACT DBREF 2HZC A 148 229 UNP P26368 U2AF2_HUMAN 148 229 SEQADV 2HZC GLY A 143 UNP P26368 CLONING ARTIFACT SEQADV 2HZC PRO A 144 UNP P26368 CLONING ARTIFACT SEQADV 2HZC LEU A 145 UNP P26368 CLONING ARTIFACT SEQADV 2HZC GLY A 146 UNP P26368 CLONING ARTIFACT SEQADV 2HZC SER A 147 UNP P26368 CLONING ARTIFACT SEQRES 1 A 87 GLY PRO LEU GLY SER ALA ARG ARG LEU TYR VAL GLY ASN SEQRES 2 A 87 ILE PRO PHE GLY ILE THR GLU GLU ALA MET MET ASP PHE SEQRES 3 A 87 PHE ASN ALA GLN MET ARG LEU GLY GLY LEU THR GLN ALA SEQRES 4 A 87 PRO GLY ASN PRO VAL LEU ALA VAL GLN ILE ASN GLN ASP SEQRES 5 A 87 LYS ASN PHE ALA PHE LEU GLU PHE ARG SER VAL ASP GLU SEQRES 6 A 87 THR THR GLN ALA MET ALA PHE ASP GLY ILE ILE PHE GLN SEQRES 7 A 87 GLY GLN SER LEU LYS ILE ARG ARG PRO HET ZN A 302 1 HET ZN A 303 1 HET P6G A 301 19 HETNAM ZN ZINC ION HETNAM P6G HEXAETHYLENE GLYCOL HETSYN P6G POLYETHYLENE GLYCOL PEG400 FORMUL 2 ZN 2(ZN 2+) FORMUL 4 P6G C12 H26 O7 FORMUL 5 HOH *192(H2 O) HELIX 1 1 LEU A 145 ALA A 148 5 4 HELIX 2 2 THR A 161 GLY A 176 1 16 HELIX 3 3 SER A 204 MET A 212 1 9 HELIX 4 4 ALA A 213 ASP A 215 5 3 SHEET 1 A 4 VAL A 186 ILE A 191 0 SHEET 2 A 4 PHE A 197 PHE A 202 -1 O GLU A 201 N ALA A 188 SHEET 3 A 4 ARG A 150 GLY A 154 -1 N VAL A 153 O ALA A 198 SHEET 4 A 4 LYS A 225 ARG A 227 -1 O LYS A 225 N GLY A 154 SHEET 1 B 2 ILE A 218 PHE A 219 0 SHEET 2 B 2 GLN A 222 SER A 223 -1 O GLN A 222 N PHE A 219 LINK OE1BGLU A 162 ZN ZN A 302 1555 1555 2.21 LINK OE2 GLU A 163 ZN ZN A 303 1555 1555 1.70 LINK OD1 ASP A 167 ZN ZN A 303 1555 1555 2.77 LINK OD2 ASP A 167 ZN ZN A 303 1555 1555 2.06 LINK O PRO A 229 ZN ZN A 303 1545 1555 1.97 LINK ZN ZN A 302 O AHOH A 317 1555 1555 2.05 LINK ZN ZN A 302 O BHOH A 317 1555 1555 1.83 LINK ZN ZN A 302 O HOH A 390 1555 1555 2.68 LINK ZN ZN A 302 O HOH A 390 1555 8555 2.68 LINK ZN ZN A 303 O HOH A 329 1555 1545 1.88 CISPEP 1 GLY A 143 PRO A 144 0 4.34 CISPEP 2 PRO A 144 LEU A 145 0 23.61 SITE 1 AC1 3 GLU A 162 HOH A 317 HOH A 390 SITE 1 AC2 5 GLU A 163 ASP A 167 PRO A 229 HOH A 326 SITE 2 AC2 5 HOH A 329 SITE 1 AC3 14 GLN A 172 ARG A 203 SER A 204 ALA A 213 SITE 2 AC3 14 PHE A 214 ASP A 215 GLY A 216 ILE A 218 SITE 3 AC3 14 HOH A 319 HOH A 340 HOH A 364 HOH A 370 SITE 4 AC3 14 HOH A 378 HOH A 404 CRYST1 29.070 29.070 184.710 90.00 90.00 90.00 P 43 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 0.034400 0.000000 0.000000 0.00000 SCALE2 0.000000 0.034400 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005414 0.00000