HEADER HYDROLASE 26-FEB-26 24AH TITLE CRYSTAL STRUCTURE OF NUCLEASE MYG1 BOUND TO MN2+ COMPND MOL_ID: 1; COMPND 2 MOLECULE: MYG1 EXONUCLEASE; COMPND 3 CHAIN: A; COMPND 4 EC: 3.1.-.-; COMPND 5 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: MYG1, C12ORF10; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS MYG1, NUCLEASE, MN2+, DHH FAMILY, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR J.DING,C.LAN,Z.CHEN REVDAT 1 22-APR-26 24AH 0 JRNL AUTH C.LAN,Z.CHEN,G.WANG,J.DING JRNL TITL BIOCHEMICAL AND STRUCTURAL STUDIES REVEAL THE SUBSTRATE JRNL TITL 2 SPECIFICITY AND CATALYTIC MECHANISM OF MYG1 AS A TWO-METAL JRNL TITL 3 ION-DEPENDENT 3'→5' EXONUCLEASE. JRNL REF ACTA BIOCHIM.BIOPHYS.SIN. 2026 JRNL REFN ESSN 1745-7270 JRNL PMID 41964352 JRNL DOI 10.3724/ABBS.2026058 REMARK 2 REMARK 2 RESOLUTION. 2.58 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.20.1_4487 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.58 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 58.59 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 3 NUMBER OF REFLECTIONS : 13011 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.209 REMARK 3 R VALUE (WORKING SET) : 0.207 REMARK 3 FREE R VALUE : 0.250 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 651 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 58.5900 - 4.4200 0.99 2565 135 0.1927 0.2228 REMARK 3 2 4.4100 - 3.5100 1.00 2469 131 0.1792 0.2123 REMARK 3 3 3.5000 - 3.0600 1.00 2457 129 0.2211 0.2777 REMARK 3 4 3.0600 - 2.7800 1.00 2447 129 0.2452 0.2956 REMARK 3 5 2.7800 - 2.5800 0.99 2422 127 0.2576 0.3309 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 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) : 0.320 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 25.973 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 34.64 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 35.13 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 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 : 0.008 2610 REMARK 3 ANGLE : 0.961 3549 REMARK 3 CHIRALITY : 0.057 379 REMARK 3 PLANARITY : 0.010 467 REMARK 3 DIHEDRAL : 5.782 353 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL 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 24AH COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBC ON 02-MAR-26. REMARK 100 THE DEPOSITION ID IS D_1300070749. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 18-NOV-24 REMARK 200 TEMPERATURE (KELVIN) : 193 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRF REMARK 200 BEAMLINE : BL19U1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9786 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 1.20.1_4487 REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13058 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.580 REMARK 200 RESOLUTION RANGE LOW (A) : 58.590 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 6.000 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 8.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.58 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.67 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.08 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.74 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG/ION SCREEN-G8: 2% V/V TACSIMATE, REMARK 280 PH 5.0, 0.1 M SODIUM CITRATE TRIBASIC DIHYDRATE, PH 5.6, 16% W/V REMARK 280 PEG 3350, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 289K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 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 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 58.58700 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 58.58700 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 35.04300 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 49.25350 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 35.04300 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 49.25350 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 58.58700 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 35.04300 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 49.25350 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 58.58700 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 35.04300 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 49.25350 REMARK 290 SMTRY3 8 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 280 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 16630 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -12.0 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 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 LEU A 283 REMARK 465 SER A 284 REMARK 465 PRO A 285 REMARK 465 PRO A 286 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 LYS A 84 CG CD CE NZ REMARK 470 ARG A 101 CG CD NE CZ NH1 NH2 REMARK 470 GLU A 184 CG CD OE1 OE2 REMARK 470 GLU A 186 CG CD OE1 OE2 REMARK 470 ASP A 210 CG OD1 OD2 REMARK 470 GLN A 255 CG CD OE1 NE2 REMARK 470 GLN A 297 CG CD OE1 NE2 REMARK 470 GLU A 329 CG CD OE1 OE2 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 O HOH A 522 O HOH A 556 1.93 REMARK 500 O VAL A 175 O HOH A 501 1.93 REMARK 500 OE1 GLU A 356 O HOH A 502 2.07 REMARK 500 OG1 THR A 194 O HOH A 503 2.10 REMARK 500 OE2 GLU A 70 O HOH A 504 2.15 REMARK 500 O SER A 315 O HOH A 505 2.18 REMARK 500 O PRO A 271 O HOH A 506 2.18 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 520 O HOH A 552 6444 2.08 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 ASN A 51 -168.20 -105.80 REMARK 500 VAL A 94 149.15 -172.23 REMARK 500 PHE A 168 -74.05 -166.69 REMARK 500 ALA A 183 -71.80 -73.57 REMARK 500 PRO A 209 -80.65 -43.85 REMARK 500 GLN A 211 50.20 -116.81 REMARK 500 PRO A 271 83.76 -63.20 REMARK 500 ASP A 328 -129.39 59.96 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 MN A 401 MN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 50 NE2 REMARK 620 2 HIS A 55 ND1 96.1 REMARK 620 3 GLU A 58 OE1 80.0 78.6 REMARK 620 4 ASP A 93 OD2 80.7 151.2 72.7 REMARK 620 5 HOH A 521 O 142.0 94.7 66.7 72.6 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MN A 402 MN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 57 OD2 REMARK 620 2 ASP A 93 OD1 82.7 REMARK 620 3 HIS A 107 NE2 86.2 78.2 REMARK 620 4 ASP A 176 OD2 78.3 152.6 81.0 REMARK 620 5 HOH A 521 O 72.4 95.6 158.4 97.2 REMARK 620 6 HOH A 556 O 152.1 110.8 119.7 94.9 81.8 REMARK 620 N 1 2 3 4 5 DBREF 24AH A 43 369 UNP Q9HB07 MYG1_HUMAN 43 369 SEQADV 24AH ILE A 287 UNP Q9HB07 VAL 287 CONFLICT SEQADV 24AH HIS A 353 UNP Q9HB07 ARG 353 CONFLICT SEQRES 1 A 327 ALA PRO PRO ARG ILE GLY THR HIS ASN GLY THR PHE HIS SEQRES 2 A 327 CYS ASP GLU ALA LEU ALA CYS ALA LEU LEU ARG LEU LEU SEQRES 3 A 327 PRO GLU TYR ARG ASP ALA GLU ILE VAL ARG THR ARG ASP SEQRES 4 A 327 PRO GLU LYS LEU ALA SER CYS ASP ILE VAL VAL ASP VAL SEQRES 5 A 327 GLY GLY GLU TYR ASP PRO ARG ARG HIS ARG TYR ASP HIS SEQRES 6 A 327 HIS GLN ARG SER PHE THR GLU THR MET SER SER LEU SER SEQRES 7 A 327 PRO GLY LYS PRO TRP GLN THR LYS LEU SER SER ALA GLY SEQRES 8 A 327 LEU ILE TYR LEU HIS PHE GLY HIS LYS LEU LEU ALA GLN SEQRES 9 A 327 LEU LEU GLY THR SER GLU GLU ASP SER MET VAL GLY THR SEQRES 10 A 327 LEU TYR ASP LYS MET TYR GLU ASN PHE VAL GLU GLU VAL SEQRES 11 A 327 ASP ALA VAL ASP ASN GLY ILE SER GLN TRP ALA GLU GLY SEQRES 12 A 327 GLU PRO ARG TYR ALA LEU THR THR THR LEU SER ALA ARG SEQRES 13 A 327 VAL ALA ARG LEU ASN PRO THR TRP ASN HIS PRO ASP GLN SEQRES 14 A 327 ASP THR GLU ALA GLY PHE LYS ARG ALA MET ASP LEU VAL SEQRES 15 A 327 GLN GLU GLU PHE LEU GLN ARG LEU ASP PHE TYR GLN HIS SEQRES 16 A 327 SER TRP LEU PRO ALA ARG ALA LEU VAL GLU GLU ALA LEU SEQRES 17 A 327 ALA GLN ARG PHE GLN VAL ASP PRO SER GLY GLU ILE VAL SEQRES 18 A 327 GLU LEU ALA LYS GLY ALA CYS PRO TRP LYS GLU HIS LEU SEQRES 19 A 327 TYR HIS LEU GLU SER GLY LEU SER PRO PRO ILE ALA ILE SEQRES 20 A 327 PHE PHE VAL ILE TYR THR ASP GLN ALA GLY GLN TRP ARG SEQRES 21 A 327 ILE GLN CYS VAL PRO LYS GLU PRO HIS SER PHE GLN SER SEQRES 22 A 327 ARG LEU PRO LEU PRO GLU PRO TRP ARG GLY LEU ARG ASP SEQRES 23 A 327 GLU ALA LEU ASP GLN VAL SER GLY ILE PRO GLY CYS ILE SEQRES 24 A 327 PHE VAL HIS ALA SER GLY PHE ILE GLY GLY HIS HIS THR SEQRES 25 A 327 ARG GLU GLY ALA LEU SER MET ALA ARG ALA THR LEU ALA SEQRES 26 A 327 GLN ARG HET MN A 401 1 HET MN A 402 1 HETNAM MN MANGANESE (II) ION FORMUL 2 MN 2(MN 2+) FORMUL 4 HOH *73(H2 O) HELIX 1 AA1 HIS A 55 LEU A 67 1 13 HELIX 2 AA2 LEU A 68 ARG A 72 5 5 HELIX 3 AA3 ASP A 81 SER A 87 1 7 HELIX 4 AA4 THR A 115 SER A 120 1 6 HELIX 5 AA5 SER A 130 LEU A 148 1 19 HELIX 6 AA6 ASP A 154 ASN A 167 1 14 HELIX 7 AA7 PHE A 168 ASN A 177 1 10 HELIX 8 AA8 THR A 194 ARG A 201 1 8 HELIX 9 AA9 ASP A 212 SER A 238 1 27 HELIX 10 AB1 TRP A 239 PRO A 241 5 3 HELIX 11 AB2 ALA A 242 GLN A 252 1 11 HELIX 12 AB3 GLN A 252 ASP A 257 1 6 HELIX 13 AB4 PRO A 271 GLU A 280 1 10 HELIX 14 AB5 PRO A 320 ARG A 324 5 5 HELIX 15 AB6 ARG A 327 GLY A 336 1 10 HELIX 16 AB7 THR A 354 GLN A 368 1 15 SHEET 1 AA1 5 GLU A 75 ARG A 78 0 SHEET 2 AA1 5 ARG A 46 THR A 49 1 N ILE A 47 O VAL A 77 SHEET 3 AA1 5 ILE A 90 VAL A 92 1 O ILE A 90 N GLY A 48 SHEET 4 AA1 5 ARG A 104 TYR A 105 1 O TYR A 105 N VAL A 91 SHEET 5 AA1 5 TYR A 98 ASP A 99 -1 N ASP A 99 O ARG A 104 SHEET 1 AA2 5 ILE A 262 GLU A 264 0 SHEET 2 AA2 5 PHE A 291 THR A 295 1 O ILE A 293 N VAL A 263 SHEET 3 AA2 5 TRP A 301 CYS A 305 -1 O ARG A 302 N TYR A 294 SHEET 4 AA2 5 ILE A 349 HIS A 352 -1 O GLY A 350 N ILE A 303 SHEET 5 AA2 5 CYS A 340 VAL A 343 -1 N ILE A 341 O GLY A 351 LINK NE2 HIS A 50 MN MN A 401 1555 1555 2.62 LINK ND1 HIS A 55 MN MN A 401 1555 1555 2.78 LINK OD2 ASP A 57 MN MN A 402 1555 1555 2.18 LINK OE1 GLU A 58 MN MN A 401 1555 1555 2.45 LINK OD2 ASP A 93 MN MN A 401 1555 1555 2.24 LINK OD1 ASP A 93 MN MN A 402 1555 1555 2.38 LINK NE2 HIS A 107 MN MN A 402 1555 1555 2.62 LINK OD2 ASP A 176 MN MN A 402 1555 1555 2.27 LINK MN MN A 401 O HOH A 521 1555 1555 2.30 LINK MN MN A 402 O HOH A 521 1555 1555 2.47 LINK MN MN A 402 O HOH A 556 1555 1555 2.65 CRYST1 70.086 98.507 117.174 90.00 90.00 90.00 C 2 2 21 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 0.014268 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010152 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008534 0.00000 CONECT 59 2543 CONECT 96 2543 CONECT 113 2544 CONECT 121 2543 CONECT 390 2544 CONECT 391 2543 CONECT 509 2544 CONECT 1054 2544 CONECT 2543 59 96 121 391 CONECT 2543 2565 CONECT 2544 113 390 509 1054 CONECT 2544 2565 2600 CONECT 2565 2543 2544 CONECT 2600 2544 MASTER 323 0 2 16 10 0 0 6 2616 1 14 26 END