HEADER METAL BINDING PROTEIN 06-AUG-03 1Q56 TITLE NMR STRUCTURE OF THE B0 ISOFORM OF THE AGRIN G3 DOMAIN IN ITS CA2+ TITLE 2 BOUND STATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: AGRIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: 195 A.A. C-TERMINAL DOMAIN, G3 DOMAIN; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES; COMPND 7 OTHER_DETAILS: B0 ISOFORM SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: GALLUS GALLUS; SOURCE 3 ORGANISM_COMMON: CHICKEN; SOURCE 4 ORGANISM_TAXID: 9031; SOURCE 5 GENE: AGRN; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: JM109; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PGSTHIS, A DERIVATIVE OF PGEX-1 SOURCE 11 (AMERSHAM) KEYWDS NMJ SYNAPSE, MRNA SPLICING, ACHR AGGREGATION, LAMININ-G LIKE DOMAIN, KEYWDS 2 CONFORMATIONAL FLEXIBILITY, MUSK ACTIVATION, CA2+ REGULATION, METAL KEYWDS 3 BINDING PROTEIN EXPDTA SOLUTION NMR NUMMDL 15 AUTHOR J.STETEFELD,A.T.ALEXANDRESCU,M.W.MACIEJEWSKI,M.JENNY,K.RATHGEB-SZABO, AUTHOR 2 T.SCHULTHESS,R.LANDWEHR,S.FRANK,M.A.RUEGG,R.A.KAMMERER REVDAT 3 02-MAR-22 1Q56 1 REMARK SEQADV REVDAT 2 24-FEB-09 1Q56 1 VERSN REVDAT 1 13-APR-04 1Q56 0 JRNL AUTH J.STETEFELD,A.T.ALEXANDRESCU,M.W.MACIEJEWSKI,M.JENNY, JRNL AUTH 2 K.RATHGEB-SZABO,T.SCHULTHESS,R.LANDWEHR,S.FRANK,M.A.RUEGG, JRNL AUTH 3 R.A.KAMMERER JRNL TITL MODULATION OF AGRIN FUNCTION BY ALTERNATIVE SPLICING AND JRNL TITL 2 CA2+ BINDING JRNL REF STRUCTURE V. 12 503 2004 JRNL REFN ISSN 0969-2126 JRNL PMID 15016366 JRNL DOI 10.1016/J.STR.2004.02.001 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : DYANA 1.5, X-PLOR 3.851 REMARK 3 AUTHORS : GNTERT (DYANA), BRUNGER (X-PLOR) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGEN BOND RESTRAINTS WERE ASSIGNED REMARK 3 BASED ON PROTECTION FROM SOLVENT EXCHANGE, AND CONSISTENCY OF REMARK 3 HYDROGEN BONDS WITH PRELIMINARY STRUCTURES. BACKBONE PHI AND PSI REMARK 3 DIHEDRAL RESTRAINTS WERE OBTAINED FROM 1HA, 13CA, 13CB, 13C AND REMARK 3 15N CHEMICAL SHIFTS USING THE PROGRAM TALOS (CORNILESCU ET AL., REMARK 3 1993). SIDE-CHAIN CHI1 RESTRAINTS WERE FROM 3D HNHB DATA, IN REMARK 3 CONJUNCTION WITH HN-HBETA 2/HN-HBETA 3 AND HALPHA-HBETA 2/HALPHA- REMARK 3 HBETA 3 NOE INTENSITY RATIOS. THESE DATA WERE ALSO USED TO REMARK 3 OBTAIN STEREOSPECIFIC ASSIGNMENTS FOR THE C-BETA PROTONS OF 37 REMARK 3 RESIDUES. NOES INVOLVING THE REMAINDER OF PROCHIRAL GROUPS WITH REMARK 3 NON-DEGENERATE CHEMICAL SHIFTS WERE TREATED AS AMBIGUOUS WITH REMARK 3 RESPECT TO STEREOSPECIFIC ASSIGNMENTS, AND REPRESENTED AS 1/< REMARK 3 SUM(R^-6)>^-1/6 SUMS USING XPLOR 3.851 (BRUNGER, 1992). INITIAL REMARK 3 STRUCTURES CALCULATED WITH THIS APPROACH, WERE USED TO IDENTIFY REMARK 3 SITES IN WHICH ONE OF THE STEREOSPECIFIC ASSIGNMENTS WAS MORE REMARK 3 CONSISTENT WITH THE REMAINING DISTANCE AND DIHEDRAL RESTRAINTS. REMARK 3 THIS ENABLED STEREOSPECIFIC ASSIGNMENT OF A FURTHER 13 METHYLENE REMARK 3 GROUPS, AND 13 VALINE AND LEUCINE PROCHIRAL METHYL GROUPS. FOR REMARK 3 THE FINAL NMR CALCULATIONS, 400 RANDOM CONFORMATIONS WERE REMARK 3 SUBJECTED TO RESTRAINED TORSION ANGLE DYNAMICS WITH THE PROGRAM REMARK 3 DYANA 1.5 (GUENTERT ET AL., 1997). THE 40 STRUCTURES WITH THE REMARK 3 SMALLEST DYANA TARGET FUNCTIONS WERE REFINED WITH A PUBLISHED REMARK 3 SIMULATED ANNEALING PROTOCOL (NILGES ET AL., 1991), USING THE REMARK 3 PROGRAM XPLOR 3.851 (BRUNGER, 1992). THE 15 LOWEST-ENERGY REMARK 3 SIMULATED ANNEALING STRUCTURES WITH NO DISTANCE OR DIHEDRAL REMARK 3 VIOLATIONS LARGER THAN 4 WERE KEPT FOR ANALYSIS. REMARK 4 REMARK 4 1Q56 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-AUG-03. REMARK 100 THE DEPOSITION ID IS D_1000019929. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 6.5 REMARK 210 IONIC STRENGTH : 5 MM CACL2 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 1 MM PROTEIN, 5 MM CACL2, 10 MM REMARK 210 D4-IMMIDAZOLE; 1 MM PROTEIN, 5 REMARK 210 MM CACL2, 10 MM D4-IMMIDAZOLE REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 3D_15N-SEPARATED_NOESY (100 MS); REMARK 210 HNHB (CHI RESTRAINTS); HSQC- REMARK 210 NOESY-HSQC (TM = 200 MS / REMARK 210 PERDEUTERATED PROTEIN); HNCACB REMARK 210 (TALOS RESTRAINTS FROM HN,CA, CB REMARK 210 SHIFTS ), HNCO (TALOS C' SHIFTS), REMARK 210 3D-15N SEP TOCSY (TALOS HA REMARK 210 SHIFTS); 3D-13C SEPARATED NOESY REMARK 210 (TM = 125 MS) AND ISOTOPE REMARK 210 EXCHANGE EXPERIMENTS TO DERIVE H- REMARK 210 BOND RESTRAINTS REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ REMARK 210 SPECTROMETER MODEL : INOVA REMARK 210 SPECTROMETER MANUFACTURER : VARIAN REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : FELIX 2000? REMARK 210 METHOD USED : TORSION ANGLE DYNAMICS (DYANA REMARK 210 1.5) FOLLOWED BY SIMULATED REMARK 210 ANNEALING (X-PLOR 3.851) REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 400 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 15 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: SAMPLE FOR 15N HSQC-NOESY 15N HSQC WAS 2H/13C/15N LABELED. REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS 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 H LYS A 48 O CYS A 166 1.49 REMARK 500 H VAL A 74 O PHE A 77 1.54 REMARK 500 O ALA A 183 H ASN A 186 1.56 REMARK 500 O GLY A 54 H ILE A 73 1.57 REMARK 500 H TRP A 58 O TRP A 142 1.59 REMARK 500 H HIS A 42 OD1 ASP A 173 1.60 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 1 LYS A 4 -172.85 66.91 REMARK 500 1 GLU A 15 71.31 -60.60 REMARK 500 1 THR A 32 110.54 -163.21 REMARK 500 1 LYS A 33 97.30 -62.91 REMARK 500 1 SER A 34 -51.65 175.25 REMARK 500 1 GLU A 35 -67.30 -101.70 REMARK 500 1 LYS A 36 77.23 63.01 REMARK 500 1 ALA A 37 44.44 172.58 REMARK 500 1 LEU A 38 173.63 -47.75 REMARK 500 1 LEU A 45 150.22 179.89 REMARK 500 1 GLU A 50 29.84 -145.39 REMARK 500 1 ALA A 51 -96.68 -162.24 REMARK 500 1 THR A 52 -35.86 176.07 REMARK 500 1 LYS A 61 90.67 61.05 REMARK 500 1 ARG A 65 27.13 -168.66 REMARK 500 1 ASP A 67 89.73 33.53 REMARK 500 1 SER A 86 -18.75 178.18 REMARK 500 1 ARG A 92 178.88 -59.16 REMARK 500 1 THR A 94 31.16 -99.82 REMARK 500 1 ASN A 100 18.76 51.67 REMARK 500 1 GLN A 111 -90.65 29.74 REMARK 500 1 GLU A 121 -158.18 -105.08 REMARK 500 1 ALA A 122 99.90 -37.34 REMARK 500 1 PRO A 129 62.36 -68.83 REMARK 500 1 LEU A 130 50.79 16.55 REMARK 500 1 ALA A 132 84.98 -161.85 REMARK 500 1 ALA A 140 170.22 -57.77 REMARK 500 1 MET A 146 130.86 -170.74 REMARK 500 1 ARG A 148 67.95 -113.14 REMARK 500 1 LEU A 149 37.78 -66.32 REMARK 500 1 HIS A 153 -85.84 83.38 REMARK 500 1 LYS A 154 -7.17 -143.91 REMARK 500 1 PRO A 156 -165.67 -68.96 REMARK 500 1 LYS A 157 -9.97 -56.25 REMARK 500 1 GLU A 176 -121.35 65.18 REMARK 500 1 LEU A 177 7.31 57.62 REMARK 500 1 HIS A 178 56.53 -110.14 REMARK 500 1 LEU A 179 -61.45 -28.24 REMARK 500 1 HIS A 191 -82.23 -110.60 REMARK 500 1 ALA A 194 37.46 75.23 REMARK 500 2 SER A 2 79.31 50.79 REMARK 500 2 LYS A 4 108.98 55.33 REMARK 500 2 ALA A 14 59.07 -118.36 REMARK 500 2 GLU A 15 70.54 -66.31 REMARK 500 2 VAL A 31 -79.61 -40.03 REMARK 500 2 SER A 34 -26.58 174.97 REMARK 500 2 GLU A 35 120.53 65.83 REMARK 500 2 ALA A 37 49.08 -179.16 REMARK 500 2 GLN A 39 -113.75 39.77 REMARK 500 2 THR A 49 162.27 52.68 REMARK 500 REMARK 500 THIS ENTRY HAS 601 RAMACHANDRAN OUTLIERS. REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 1 ARG A 22 0.29 SIDE CHAIN REMARK 500 1 ARG A 65 0.29 SIDE CHAIN REMARK 500 1 ARG A 92 0.32 SIDE CHAIN REMARK 500 1 ARG A 109 0.29 SIDE CHAIN REMARK 500 1 ARG A 112 0.29 SIDE CHAIN REMARK 500 1 ARG A 148 0.27 SIDE CHAIN REMARK 500 1 ARG A 168 0.21 SIDE CHAIN REMARK 500 1 ARG A 174 0.32 SIDE CHAIN REMARK 500 2 ARG A 22 0.09 SIDE CHAIN REMARK 500 2 ARG A 65 0.21 SIDE CHAIN REMARK 500 2 ARG A 92 0.32 SIDE CHAIN REMARK 500 2 ARG A 109 0.23 SIDE CHAIN REMARK 500 2 ARG A 112 0.23 SIDE CHAIN REMARK 500 2 ARG A 148 0.16 SIDE CHAIN REMARK 500 2 ARG A 168 0.23 SIDE CHAIN REMARK 500 2 ARG A 174 0.09 SIDE CHAIN REMARK 500 3 ARG A 22 0.12 SIDE CHAIN REMARK 500 3 ARG A 65 0.23 SIDE CHAIN REMARK 500 3 ARG A 92 0.08 SIDE CHAIN REMARK 500 3 ARG A 109 0.25 SIDE CHAIN REMARK 500 3 ARG A 112 0.29 SIDE CHAIN REMARK 500 3 ARG A 148 0.17 SIDE CHAIN REMARK 500 3 ARG A 168 0.14 SIDE CHAIN REMARK 500 3 ARG A 174 0.12 SIDE CHAIN REMARK 500 4 ARG A 22 0.20 SIDE CHAIN REMARK 500 4 ARG A 65 0.20 SIDE CHAIN REMARK 500 4 ARG A 92 0.31 SIDE CHAIN REMARK 500 4 ARG A 109 0.16 SIDE CHAIN REMARK 500 4 ARG A 112 0.17 SIDE CHAIN REMARK 500 4 ARG A 148 0.15 SIDE CHAIN REMARK 500 4 ARG A 168 0.22 SIDE CHAIN REMARK 500 4 ARG A 174 0.15 SIDE CHAIN REMARK 500 5 ARG A 22 0.32 SIDE CHAIN REMARK 500 5 ARG A 65 0.23 SIDE CHAIN REMARK 500 5 ARG A 92 0.22 SIDE CHAIN REMARK 500 5 ARG A 109 0.12 SIDE CHAIN REMARK 500 5 ARG A 112 0.09 SIDE CHAIN REMARK 500 5 ARG A 148 0.21 SIDE CHAIN REMARK 500 5 ARG A 168 0.15 SIDE CHAIN REMARK 500 5 ARG A 174 0.17 SIDE CHAIN REMARK 500 6 ARG A 22 0.31 SIDE CHAIN REMARK 500 6 ARG A 65 0.31 SIDE CHAIN REMARK 500 6 ARG A 92 0.31 SIDE CHAIN REMARK 500 6 ARG A 109 0.27 SIDE CHAIN REMARK 500 6 ARG A 112 0.32 SIDE CHAIN REMARK 500 6 ARG A 148 0.31 SIDE CHAIN REMARK 500 6 ARG A 168 0.32 SIDE CHAIN REMARK 500 6 ARG A 174 0.30 SIDE CHAIN REMARK 500 7 ARG A 22 0.32 SIDE CHAIN REMARK 500 7 ARG A 65 0.23 SIDE CHAIN REMARK 500 REMARK 500 THIS ENTRY HAS 116 PLANE DEVIATIONS. REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1PZ7 RELATED DB: PDB REMARK 900 MODULATION OF AGRIN FUNCTION BY ALTERNATIVE SPLICING AND CA2+ REMARK 900 BINDING REMARK 900 RELATED ID: 1PZ8 RELATED DB: PDB REMARK 900 MODULATION OF AGRIN FUNCTION BY ALTERNATIVE SPLICING AND CA2+ REMARK 900 BINDING REMARK 900 RELATED ID: 1PZ9 RELATED DB: PDB REMARK 900 MODULATION OF AGRIN FUNCTION BY ALTERNATIVE SPLICING AND CA2+ REMARK 900 BINDING DBREF 1Q56 A 1 195 UNP P31696 AGRN_CHICK 624 816 SEQADV 1Q56 GLY A 1 UNP P31696 CLONING ARTIFACT SEQADV 1Q56 SER A 2 UNP P31696 CLONING ARTIFACT SEQRES 1 A 195 GLY SER GLU LYS VAL ILE ILE GLU LYS ALA ALA GLY ASP SEQRES 2 A 195 ALA GLU ALA ILE ALA PHE ASP GLY ARG THR TYR MET GLU SEQRES 3 A 195 TYR HIS ASN ALA VAL THR LYS SER GLU LYS ALA LEU GLN SEQRES 4 A 195 SER ASN HIS PHE GLU LEU SER ILE LYS THR GLU ALA THR SEQRES 5 A 195 GLN GLY LEU ILE LEU TRP SER GLY LYS GLY LEU GLU ARG SEQRES 6 A 195 SER ASP TYR ILE ALA LEU ALA ILE VAL ASP GLY PHE VAL SEQRES 7 A 195 GLN MET MET TYR ASP LEU GLY SER LYS PRO VAL VAL LEU SEQRES 8 A 195 ARG SER THR VAL PRO ILE ASN THR ASN HIS TRP THR HIS SEQRES 9 A 195 ILE LYS ALA TYR ARG VAL GLN ARG GLU GLY SER LEU GLN SEQRES 10 A 195 VAL GLY ASN GLU ALA PRO ILE THR GLY SER SER PRO LEU SEQRES 11 A 195 GLY ALA THR GLN LEU ASP THR ASP GLY ALA LEU TRP LEU SEQRES 12 A 195 GLY GLY MET GLU ARG LEU SER VAL ALA HIS LYS LEU PRO SEQRES 13 A 195 LYS ALA TYR SER THR GLY PHE ILE GLY CYS ILE ARG ASP SEQRES 14 A 195 VAL ILE VAL ASP ARG GLN GLU LEU HIS LEU VAL GLU ASP SEQRES 15 A 195 ALA LEU ASN ASN PRO THR ILE LEU HIS CYS SER ALA LYS HELIX 1 1 ARG A 148 ALA A 152 5 5 HELIX 2 2 PRO A 156 THR A 161 1 6 HELIX 3 3 HIS A 178 LEU A 184 1 7 SHEET 1 A 6 ILE A 17 ALA A 18 0 SHEET 2 A 6 CYS A 166 VAL A 172 -1 O ILE A 167 N ILE A 17 SHEET 3 A 6 SER A 40 LYS A 48 -1 N LYS A 48 O CYS A 166 SHEET 4 A 6 THR A 103 VAL A 110 -1 O ILE A 105 N LEU A 45 SHEET 5 A 6 GLU A 113 VAL A 118 -1 O GLU A 113 N VAL A 110 SHEET 6 A 6 ILE A 124 SER A 127 -1 O GLY A 126 N GLY A 114 SHEET 1 B 3 ILE A 17 ALA A 18 0 SHEET 2 B 3 CYS A 166 VAL A 172 -1 O ILE A 167 N ILE A 17 SHEET 3 B 3 GLN A 175 GLU A 176 -1 O GLN A 175 N VAL A 172 SHEET 1 C 6 MET A 25 TYR A 27 0 SHEET 2 C 6 LEU A 141 LEU A 143 -1 O LEU A 141 N TYR A 27 SHEET 3 C 6 GLY A 54 SER A 59 -1 N TRP A 58 O TRP A 142 SHEET 4 C 6 TYR A 68 VAL A 74 -1 O ILE A 73 N GLY A 54 SHEET 5 C 6 PHE A 77 ASP A 83 -1 O PHE A 77 N VAL A 74 SHEET 6 C 6 VAL A 89 ARG A 92 -1 O LEU A 91 N MET A 80 SSBOND 1 CYS A 166 CYS A 192 1555 1555 2.02 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MODEL 1