HEADER METAL BINDING PROTEIN 17-DEC-12 2M28 TITLE NMR STRUCTURE OF CA2+ BOUND CABP4 C-DOMAIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: CALCIUM-BINDING PROTEIN 4; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CABP4; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MUS MUSCULUS; SOURCE 3 ORGANISM_COMMON: MOUSE; SOURCE 4 ORGANISM_TAXID: 10090; SOURCE 5 GENE: CABP4; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_VECTOR: PET28 KEYWDS METAL BINDING PROTEIN EXPDTA SOLUTION NMR NUMMDL 14 AUTHOR J.B.AMES REVDAT 3 14-JUN-23 2M28 1 REMARK LINK REVDAT 2 14-MAY-14 2M28 1 MODEL REVDAT 1 07-MAY-14 2M28 0 JRNL AUTH J.AMES JRNL TITL CHEMICAL SHIFT ASSIGNMENT OF CA2+ BOUND CAPB4 JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SPARKY, X-PLOR NIH REMARK 3 AUTHORS : GODDARD (SPARKY) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2M28 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-MAR-13. REMARK 100 THE DEPOSITION ID IS D_1000103116. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 310; 310; 310; 310; 310 REMARK 210 PH : 7.4; 7.4; 7.4; 7.4; 7.4 REMARK 210 IONIC STRENGTH : NULL; NULL; NULL; NULL; NULL REMARK 210 PRESSURE : AMBIENT; AMBIENT; AMBIENT; REMARK 210 AMBIENT; AMBIENT REMARK 210 SAMPLE CONTENTS : 0.5 MM [U-13C; U-15N; U-2H] REMARK 210 CABP4, 90% H2O/10% D2O; 0.5 MM REMARK 210 [U-15N] CABP4, 90% H2O/10% D2O; REMARK 210 0.5 MM [U-13C; U-15N] CABP4, 90% REMARK 210 H2O/10% D2O; 0.5 MM CABP4, 90% REMARK 210 H2O/10% D2O; 0.5 MM [U-10% 13C; REMARK 210 U-99% 15N] CABP4, 90% H2O/10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-15N HSQC; 3D HNCO; 3D REMARK 210 HN(CA)CO; TROSY HNCACB; TROSY REMARK 210 HN(CO)CACB; 3D HCCH-TOCSY; 2D 1H- REMARK 210 1H COSY; 2D 1H-1H NOESY; 13C CT- REMARK 210 HSQC; 3D 1H-15N NOESY; 3D 1H-13C REMARK 210 NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 800 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : X-PLOR NIH REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 70 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 14 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: NULL 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 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 465 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 MODELS 1-14 REMARK 465 RES C SSSEQI REMARK 465 GLN A 101 REMARK 465 ASP A 102 REMARK 465 ALA A 103 REMARK 465 ALA A 104 REMARK 465 GLN A 105 REMARK 465 ARG A 106 REMARK 465 THR A 107 REMARK 465 TYR A 108 REMARK 465 GLY A 109 REMARK 465 PRO A 110 REMARK 465 LEU A 111 REMARK 465 LEU A 112 REMARK 465 ASN A 113 REMARK 465 ARG A 114 REMARK 465 MET A 115 REMARK 465 PHE A 116 REMARK 465 GLY A 117 REMARK 465 LYS A 118 REMARK 465 ASP A 119 REMARK 465 ARG A 120 REMARK 465 GLU A 121 REMARK 465 LEU A 122 REMARK 465 GLY A 123 REMARK 465 PRO A 124 REMARK 465 GLU A 125 REMARK 465 GLU A 126 REMARK 465 LEU A 127 REMARK 465 GLU A 128 REMARK 465 GLU A 129 REMARK 465 LEU A 130 REMARK 465 GLN A 131 REMARK 465 ALA A 132 REMARK 465 ALA A 133 REMARK 465 PHE A 134 REMARK 465 GLU A 135 REMARK 465 GLU A 136 REMARK 465 PHE A 137 REMARK 465 ASP A 138 REMARK 465 THR A 139 REMARK 465 ASP A 140 REMARK 465 GLN A 141 REMARK 465 ASP A 142 REMARK 465 GLY A 143 REMARK 465 TYR A 144 REMARK 465 ILE A 145 REMARK 465 GLY A 146 REMARK 465 TYR A 147 REMARK 465 ARG A 148 REMARK 465 GLU A 149 REMARK 465 LEU A 150 REMARK 465 GLY A 151 REMARK 465 ASP A 152 REMARK 465 CYS A 153 REMARK 465 MET A 154 REMARK 465 ARG A 155 REMARK 465 THR A 156 REMARK 465 LEU A 157 REMARK 465 GLY A 158 REMARK 465 TYR A 159 REMARK 465 MET A 160 REMARK 465 PRO A 161 REMARK 465 THR A 162 REMARK 465 GLU A 163 REMARK 465 MET A 164 REMARK 465 GLU A 165 REMARK 465 LEU A 166 REMARK 465 LEU A 167 REMARK 465 GLU A 168 REMARK 465 VAL A 169 REMARK 465 SER A 170 REMARK 465 GLN A 171 REMARK 465 HIS A 172 REMARK 465 VAL A 173 REMARK 465 LYS A 174 REMARK 465 MET A 175 REMARK 465 ARG A 176 REMARK 465 MET A 177 REMARK 465 GLY A 178 REMARK 465 GLY A 179 REMARK 465 PHE A 180 REMARK 465 VAL A 181 REMARK 465 ASP A 182 REMARK 465 PHE A 183 REMARK 465 GLU A 184 REMARK 465 GLU A 185 REMARK 465 PHE A 186 REMARK 465 VAL A 187 REMARK 465 GLU A 188 REMARK 465 LEU A 189 REMARK 465 ILE A 190 REMARK 465 SER A 191 REMARK 465 PRO A 192 REMARK 465 LYS A 193 REMARK 465 LEU A 194 REMARK 465 ARG A 195 REMARK 465 GLU A 196 REMARK 465 GLU A 197 REMARK 465 THR A 198 REMARK 465 ALA A 199 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 O ASP A 260 H PHE A 264 1.53 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 1 HIS A 200 CG HIS A 200 ND1 -0.121 REMARK 500 2 HIS A 200 CG HIS A 200 ND1 -0.119 REMARK 500 3 HIS A 200 CG HIS A 200 ND1 -0.121 REMARK 500 4 HIS A 200 CG HIS A 200 ND1 -0.120 REMARK 500 5 HIS A 200 CG HIS A 200 ND1 -0.121 REMARK 500 6 HIS A 200 CG HIS A 200 ND1 -0.121 REMARK 500 7 HIS A 200 CG HIS A 200 ND1 -0.119 REMARK 500 8 HIS A 200 CG HIS A 200 ND1 -0.122 REMARK 500 9 HIS A 200 CG HIS A 200 ND1 -0.120 REMARK 500 10 HIS A 200 CG HIS A 200 ND1 -0.121 REMARK 500 11 HIS A 200 CG HIS A 200 ND1 -0.122 REMARK 500 12 HIS A 200 CG HIS A 200 ND1 -0.120 REMARK 500 13 HIS A 200 CG HIS A 200 ND1 -0.121 REMARK 500 14 HIS A 200 CG HIS A 200 ND1 -0.121 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 ASP A 217 1.11 -157.58 REMARK 500 1 ARG A 218 27.04 43.96 REMARK 500 1 VAL A 224 -25.84 -39.85 REMARK 500 1 LEU A 235 21.72 -145.20 REMARK 500 1 LEU A 239 -73.72 -32.28 REMARK 500 1 LEU A 244 -71.51 -78.42 REMARK 500 1 THR A 270 -37.62 -137.99 REMARK 500 2 MET A 201 -79.92 -171.78 REMARK 500 2 LEU A 202 -86.61 -143.15 REMARK 500 2 ARG A 205 -30.34 -37.37 REMARK 500 2 GLU A 237 139.20 -37.15 REMARK 500 2 PRO A 238 -138.84 -67.39 REMARK 500 2 GLU A 240 142.00 -29.93 REMARK 500 2 PHE A 261 -35.29 -39.00 REMARK 500 2 THR A 270 -80.20 -149.25 REMARK 500 3 VAL A 204 -10.99 -48.38 REMARK 500 3 LYS A 216 49.83 -162.19 REMARK 500 3 VAL A 224 -27.97 -38.16 REMARK 500 3 LEU A 235 11.72 87.12 REMARK 500 3 GLU A 237 139.64 -27.21 REMARK 500 3 PRO A 238 81.29 -61.65 REMARK 500 3 GLU A 240 -66.33 -129.41 REMARK 500 3 THR A 242 0.09 -68.87 REMARK 500 3 LEU A 253 11.37 -140.05 REMARK 500 3 ASP A 256 -27.89 -141.05 REMARK 500 3 PHE A 261 -16.75 -43.60 REMARK 500 3 SER A 269 -19.55 -41.44 REMARK 500 3 THR A 270 92.98 54.70 REMARK 500 4 LEU A 202 176.10 59.25 REMARK 500 4 LYS A 216 39.22 -74.30 REMARK 500 4 ASP A 217 -154.83 -171.69 REMARK 500 4 ARG A 218 58.68 -140.68 REMARK 500 4 VAL A 224 -26.83 -39.63 REMARK 500 4 LEU A 235 -8.31 72.37 REMARK 500 4 PRO A 238 -91.67 -63.53 REMARK 500 4 LEU A 239 115.10 -176.26 REMARK 500 4 GLU A 240 -65.35 -146.14 REMARK 500 4 THR A 242 3.16 -60.45 REMARK 500 4 GLU A 243 -70.73 -76.89 REMARK 500 4 PHE A 261 -19.99 -45.24 REMARK 500 4 SER A 269 34.87 -57.61 REMARK 500 4 THR A 270 111.95 67.05 REMARK 500 5 LYS A 216 36.81 -77.22 REMARK 500 5 ASP A 217 -150.84 -167.79 REMARK 500 5 ARG A 218 49.89 -142.19 REMARK 500 5 VAL A 224 -28.13 -38.89 REMARK 500 5 ALA A 233 -10.76 -47.37 REMARK 500 5 PRO A 238 -143.95 -65.15 REMARK 500 5 LEU A 239 -106.99 -169.44 REMARK 500 5 GLU A 240 -75.09 -173.72 REMARK 500 REMARK 500 THIS ENTRY HAS 147 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 205 0.25 SIDE CHAIN REMARK 500 1 ARG A 208 0.08 SIDE CHAIN REMARK 500 1 ARG A 212 0.11 SIDE CHAIN REMARK 500 1 ARG A 218 0.27 SIDE CHAIN REMARK 500 1 ARG A 221 0.16 SIDE CHAIN REMARK 500 1 ARG A 228 0.26 SIDE CHAIN REMARK 500 2 ARG A 205 0.27 SIDE CHAIN REMARK 500 2 ARG A 208 0.29 SIDE CHAIN REMARK 500 2 ARG A 212 0.25 SIDE CHAIN REMARK 500 2 ARG A 218 0.29 SIDE CHAIN REMARK 500 2 ARG A 228 0.22 SIDE CHAIN REMARK 500 2 ARG A 249 0.31 SIDE CHAIN REMARK 500 3 ARG A 205 0.24 SIDE CHAIN REMARK 500 3 ARG A 208 0.21 SIDE CHAIN REMARK 500 3 ARG A 212 0.12 SIDE CHAIN REMARK 500 3 ARG A 218 0.32 SIDE CHAIN REMARK 500 3 ARG A 221 0.29 SIDE CHAIN REMARK 500 3 ARG A 228 0.31 SIDE CHAIN REMARK 500 3 ARG A 249 0.25 SIDE CHAIN REMARK 500 4 ARG A 205 0.28 SIDE CHAIN REMARK 500 4 ARG A 208 0.31 SIDE CHAIN REMARK 500 4 ARG A 212 0.25 SIDE CHAIN REMARK 500 4 ARG A 218 0.28 SIDE CHAIN REMARK 500 4 ARG A 221 0.30 SIDE CHAIN REMARK 500 4 ARG A 228 0.31 SIDE CHAIN REMARK 500 4 ARG A 249 0.25 SIDE CHAIN REMARK 500 5 ARG A 205 0.13 SIDE CHAIN REMARK 500 5 ARG A 208 0.30 SIDE CHAIN REMARK 500 5 ARG A 212 0.27 SIDE CHAIN REMARK 500 5 ARG A 218 0.10 SIDE CHAIN REMARK 500 5 ARG A 228 0.08 SIDE CHAIN REMARK 500 5 ARG A 249 0.19 SIDE CHAIN REMARK 500 6 ARG A 212 0.26 SIDE CHAIN REMARK 500 6 ARG A 218 0.18 SIDE CHAIN REMARK 500 6 ARG A 221 0.14 SIDE CHAIN REMARK 500 6 ARG A 228 0.31 SIDE CHAIN REMARK 500 6 ARG A 249 0.15 SIDE CHAIN REMARK 500 7 ARG A 205 0.09 SIDE CHAIN REMARK 500 7 ARG A 208 0.32 SIDE CHAIN REMARK 500 7 ARG A 221 0.24 SIDE CHAIN REMARK 500 7 ARG A 228 0.14 SIDE CHAIN REMARK 500 7 ARG A 249 0.32 SIDE CHAIN REMARK 500 8 ARG A 205 0.28 SIDE CHAIN REMARK 500 8 ARG A 208 0.13 SIDE CHAIN REMARK 500 8 ARG A 212 0.30 SIDE CHAIN REMARK 500 8 ARG A 218 0.31 SIDE CHAIN REMARK 500 8 ARG A 221 0.29 SIDE CHAIN REMARK 500 8 ARG A 228 0.31 SIDE CHAIN REMARK 500 8 ARG A 249 0.32 SIDE CHAIN REMARK 500 9 ARG A 205 0.21 SIDE CHAIN REMARK 500 REMARK 500 THIS ENTRY HAS 86 PLANE DEVIATIONS. 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 CA A 301 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 215 OD1 REMARK 620 2 ASP A 217 OD2 114.6 REMARK 620 3 ASP A 217 OD1 57.5 57.1 REMARK 620 4 ASP A 219 OD1 72.8 80.1 66.5 REMARK 620 5 ARG A 221 O 69.0 162.1 124.3 84.7 REMARK 620 6 GLU A 226 OE1 56.1 138.6 99.1 124.2 58.7 REMARK 620 7 GLU A 226 OE2 108.2 115.6 131.5 160.2 77.6 52.2 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 302 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 252 OD1 REMARK 620 2 ASP A 252 OD2 55.7 REMARK 620 3 ASN A 254 OD1 64.3 119.7 REMARK 620 4 ASP A 256 OD1 97.7 73.3 111.2 REMARK 620 5 THR A 258 O 122.2 68.9 166.9 80.1 REMARK 620 6 GLU A 263 OE1 96.6 83.3 110.1 138.5 59.4 REMARK 620 7 GLU A 263 OE2 61.4 94.2 59.9 159.0 111.6 52.9 REMARK 620 N 1 2 3 4 5 6 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 302 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 18877 RELATED DB: BMRB REMARK 900 RELATED ID: 2M29 RELATED DB: PDB DBREF 2M28 A 101 271 UNP Q8VHC5 CABP4_MOUSE 101 271 SEQRES 1 A 171 GLN ASP ALA ALA GLN ARG THR TYR GLY PRO LEU LEU ASN SEQRES 2 A 171 ARG MET PHE GLY LYS ASP ARG GLU LEU GLY PRO GLU GLU SEQRES 3 A 171 LEU GLU GLU LEU GLN ALA ALA PHE GLU GLU PHE ASP THR SEQRES 4 A 171 ASP GLN ASP GLY TYR ILE GLY TYR ARG GLU LEU GLY ASP SEQRES 5 A 171 CYS MET ARG THR LEU GLY TYR MET PRO THR GLU MET GLU SEQRES 6 A 171 LEU LEU GLU VAL SER GLN HIS VAL LYS MET ARG MET GLY SEQRES 7 A 171 GLY PHE VAL ASP PHE GLU GLU PHE VAL GLU LEU ILE SER SEQRES 8 A 171 PRO LYS LEU ARG GLU GLU THR ALA HIS MET LEU GLY VAL SEQRES 9 A 171 ARG GLU LEU ARG ILE ALA PHE ARG GLU PHE ASP LYS ASP SEQRES 10 A 171 ARG ASP GLY ARG ILE THR VAL ALA GLU LEU ARG GLN ALA SEQRES 11 A 171 ALA PRO ALA LEU LEU GLY GLU PRO LEU GLU GLY THR GLU SEQRES 12 A 171 LEU ASP GLU MET LEU ARG GLU MET ASP LEU ASN GLY ASP SEQRES 13 A 171 GLY THR ILE ASP PHE ASP GLU PHE VAL MET MET LEU SER SEQRES 14 A 171 THR GLY HET CA A 301 1 HET CA A 302 1 HETNAM CA CALCIUM ION FORMUL 2 CA 2(CA 2+) HELIX 1 1 GLY A 203 ASP A 215 1 13 HELIX 2 2 VAL A 224 ALA A 231 1 8 HELIX 3 3 GLY A 241 ASP A 252 1 12 HELIX 4 4 ASP A 260 SER A 269 1 10 SHEET 1 A 2 ILE A 222 THR A 223 0 SHEET 2 A 2 THR A 258 ILE A 259 -1 O ILE A 259 N ILE A 222 LINK OD1 ASP A 215 CA CA A 301 1555 1555 2.52 LINK OD2 ASP A 217 CA CA A 301 1555 1555 2.02 LINK OD1 ASP A 217 CA CA A 301 1555 1555 2.48 LINK OD1 ASP A 219 CA CA A 301 1555 1555 2.46 LINK O ARG A 221 CA CA A 301 1555 1555 2.49 LINK OE1 GLU A 226 CA CA A 301 1555 1555 2.48 LINK OE2 GLU A 226 CA CA A 301 1555 1555 2.50 LINK OD1 ASP A 252 CA CA A 302 1555 1555 2.17 LINK OD2 ASP A 252 CA CA A 302 1555 1555 2.48 LINK OD1 ASN A 254 CA CA A 302 1555 1555 2.41 LINK OD1 ASP A 256 CA CA A 302 1555 1555 2.41 LINK O THR A 258 CA CA A 302 1555 1555 2.50 LINK OE1 GLU A 263 CA CA A 302 1555 1555 2.40 LINK OE2 GLU A 263 CA CA A 302 1555 1555 2.51 SITE 1 AC1 5 ASP A 215 ASP A 217 ASP A 219 ARG A 221 SITE 2 AC1 5 GLU A 226 SITE 1 AC2 5 ASP A 252 ASN A 254 ASP A 256 THR A 258 SITE 2 AC2 5 GLU A 263 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