2GC6 - Header Asymmetric Unit

HEADER LIGASE 13-MAR-06 2GC6

TITLE S73A MUTANT OF L. CASEI FPGS

COMPND MOL_ID: 1; COMPND 2 MOLECULE: FOLYLPOLYGLUTAMATE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: FOLYLPOLY-GAMMA-GLUTAMATE SYNTHETASE, FPGS, COMPND 5 TETRAHYDROFOLATE SYNTHASE, TETRAHYDROFOLYLPOLYGLUTAMATE COMPND 6 SYNTHASE; COMPND 7 EC: 6.3.2.17; COMPND 8 ENGINEERED: YES; COMPND 9 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: LACTOBACILLUS CASEI; SOURCE 3 ORGANISM_TAXID: 1582; SOURCE 4 GENE: FGS; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562

KEYWDS ATPASE, P-LOOP, SITE-DIRECTED MUTANT, LIGASE

EXPDTA X-RAY DIFFRACTION

AUTHOR C.A.SMITH,J.A.CROSS,A.L.BOGNAR,X.SUN

REVDAT 3 07-JUL-09 2GC6 1 HET HETATM REVDAT 2 24-FEB-09 2GC6 1 VERSN REVDAT 1 27-JUN-06 2GC6 0

JRNL AUTH C.A.SMITH,J.A.CROSS,A.L.BOGNAR,X.SUN JRNL TITL MUTATION OF GLY51 TO SERINE IN THE P-LOOP OF JRNL TITL 2 LACTOBACILLUS CASEI FOLYLPOLYGLUTAMATE SYNTHETASE JRNL TITL 3 ABOLISHES ACTIVITY BY ALTERING THE CONFORMATION OF JRNL TITL 4 TWO ADJACENT LOOPS. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 62 548 2006 JRNL REFN ISSN 0907-4449 JRNL PMID 16627949 JRNL DOI 10.1107/S0907444906009796

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0005 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 97.1 REMARK 3 NUMBER OF REFLECTIONS : 26921 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM 5% REMARK 3 R VALUE (WORKING + TEST SET) : 0.193 REMARK 3 R VALUE (WORKING SET) : 0.191 REMARK 3 FREE R VALUE : 0.235 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1380 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.95 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1346 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 92.11 REMARK 3 BIN R VALUE (WORKING SET) : 0.2230 REMARK 3 BIN FREE R VALUE SET COUNT : 55 REMARK 3 BIN FREE R VALUE : 0.3500 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3112 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 5 REMARK 3 SOLVENT ATOMS : 274 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 20.17 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 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.187 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.163 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.101 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.338 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.943 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.910 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 3182 ; 0.006 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 4346 ; 1.370 ; 1.949 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 403 ; 5.917 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 136 ;37.225 ;23.971 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 493 ;14.371 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 20 ;15.429 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 513 ; 0.094 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2408 ; 0.005 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1367 ; 0.202 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 2201 ; 0.301 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 178 ; 0.164 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 36 ; 0.167 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 14 ; 0.142 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 2082 ; 0.867 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 3265 ; 1.366 ; 2.000 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1246 ; 2.012 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 1081 ; 3.168 ; 4.500 REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 2GC6 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-MAR-06. REMARK 100 THE RCSB ID CODE IS RCSB036943.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 5.3 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 : RIGAKU RU300 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : OSMIC OPTICS REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 29157 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.1 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.06000 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 21.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.97 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.1 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.29200 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.52 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.10 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 50 MM ACETATE AND 16-24% PEG4000, REMARK 280 PH 5.3, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 22.93000 REMARK 290 SMTRY3 2 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 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 LYS A 18 REMARK 465 THR A 19 REMARK 465 GLY A 20 REMARK 465 ALA A 344 REMARK 465 ASP A 345 REMARK 465 LYS A 346 REMARK 465 ASP A 347 REMARK 465 PRO A 375 REMARK 465 GLU A 376 REMARK 465 ALA A 377 REMARK 465 GLY A 378 REMARK 465 TYR A 379 REMARK 465 GLU A 380 REMARK 465 ALA A 381 REMARK 465 LEU A 382 REMARK 465 HIS A 383 REMARK 465 GLU A 384 REMARK 465 GLY A 385 REMARK 465 GLY A 426 REMARK 465 LYS A 427 REMARK 465 SER A 428

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 ARG A 15 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 172 CG CD CE NZ REMARK 470 LEU A 173 CG CD1 CD2 REMARK 470 ASN A 317 CG OD1 ND2 REMARK 470 ILE A 342 CG1 CG2 CD1 REMARK 470 TYR A 348 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 ARG A 354 CG CD NE CZ NH1 NH2

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 ARG A 224 -55.63 -125.55 REMARK 500 PRO A 255 46.00 -76.98 REMARK 500 MET A 351 -41.67 66.66 REMARK 500 ASP A 353 -51.08 75.81 REMARK 500 ALA A 358 -31.35 -141.08 REMARK 500 SER A 360 -79.21 -58.65 REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 765 DISTANCE = 5.05 ANGSTROMS

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 900

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1FGS RELATED DB: PDB REMARK 900 RELATED ID: 1JBV RELATED DB: PDB REMARK 900 RELATED ID: 1JBW RELATED DB: PDB REMARK 900 RELATED ID: 2GC5 RELATED DB: PDB REMARK 900 RELATED ID: 2GCA RELATED DB: PDB REMARK 900 RELATED ID: 2GCB RELATED DB: PDB

DBREF 2GC6 A 1 428 UNP P15925 FOLC_LACCA 1 428

SEQADV 2GC6 ALA A 73 UNP P15925 SER 73 ENGINEERED

SEQRES 1 A 428 MET ASN TYR THR GLU THR VAL ALA TYR ILE HIS SER PHE SEQRES 2 A 428 PRO ARG LEU ALA LYS THR GLY ASP HIS ARG ARG ILE LEU SEQRES 3 A 428 THR LEU LEU HIS ALA LEU GLY ASN PRO GLN GLN GLN GLY SEQRES 4 A 428 ARG TYR ILE HIS VAL THR GLY THR ASN GLY LYS GLY SER SEQRES 5 A 428 ALA ALA ASN ALA ILE ALA HIS VAL LEU GLU ALA SER GLY SEQRES 6 A 428 LEU THR VAL GLY LEU TYR THR ALA PRO PHE ILE MET ARG SEQRES 7 A 428 PHE ASN GLU ARG ILE MET ILE ASP HIS GLU PRO ILE PRO SEQRES 8 A 428 ASP ALA ALA LEU VAL ASN ALA VAL ALA PHE VAL ARG ALA SEQRES 9 A 428 ALA LEU GLU ARG LEU GLN GLN GLN GLN ALA ASP PHE ASN SEQRES 10 A 428 VAL THR GLU PHE GLU PHE ILE THR ALA LEU GLY TYR TRP SEQRES 11 A 428 TYR PHE ARG GLN ARG GLN VAL ASP VAL ALA VAL ILE GLU SEQRES 12 A 428 VAL GLY ILE GLY GLY ASP THR ASP SER THR ASN VAL ILE SEQRES 13 A 428 THR PRO VAL VAL SER VAL LEU THR GLU VAL ALA LEU ASP SEQRES 14 A 428 HIS GLN LYS LEU LEU GLY HIS THR ILE THR ALA ILE ALA SEQRES 15 A 428 LYS HIS KCX ALA GLY ILE ILE LYS ARG GLY ILE PRO VAL SEQRES 16 A 428 VAL THR GLY ASN LEU VAL PRO ASP ALA ALA ALA VAL VAL SEQRES 17 A 428 ALA ALA LYS VAL ALA THR THR GLY SER GLN TRP LEU ARG SEQRES 18 A 428 PHE ASP ARG ASP PHE SER VAL PRO LYS ALA LYS LEU HIS SEQRES 19 A 428 GLY TRP GLY GLN ARG PHE THR TYR GLU ASP GLN ASP GLY SEQRES 20 A 428 ARG ILE SER ASP LEU GLU VAL PRO LEU VAL GLY ASP TYR SEQRES 21 A 428 GLN GLN ARG ASN MET ALA ILE ALA ILE GLN THR ALA LYS SEQRES 22 A 428 VAL TYR ALA LYS GLN THR GLU TRP PRO LEU THR PRO GLN SEQRES 23 A 428 ASN ILE ARG GLN GLY LEU ALA ALA SER HIS TRP PRO ALA SEQRES 24 A 428 ARG LEU GLU LYS ILE SER ASP THR PRO LEU ILE VAL ILE SEQRES 25 A 428 ASP GLY ALA HIS ASN PRO ASP GLY ILE ASN GLY LEU ILE SEQRES 26 A 428 THR ALA LEU LYS GLN LEU PHE SER GLN PRO ILE THR VAL SEQRES 27 A 428 ILE ALA GLY ILE LEU ALA ASP LYS ASP TYR ALA ALA MET SEQRES 28 A 428 ALA ASP ARG LEU THR ALA ALA PHE SER THR VAL TYR LEU SEQRES 29 A 428 VAL PRO VAL PRO GLY THR PRO ARG ALA LEU PRO GLU ALA SEQRES 30 A 428 GLY TYR GLU ALA LEU HIS GLU GLY ARG LEU LYS ASP SER SEQRES 31 A 428 TRP GLN GLU ALA LEU ALA ALA SER LEU ASN ASP VAL PRO SEQRES 32 A 428 ASP GLN PRO ILE VAL ILE THR GLY SER LEU TYR LEU ALA SEQRES 33 A 428 SER ALA VAL ARG GLN THR LEU LEU GLY GLY LYS SER

MODRES 2GC6 KCX A 185 LYS LYSINE NZ-CARBOXYLIC ACID

HET KCX A 185 12 HET SO4 A 900 5

HETNAM KCX LYSINE NZ-CARBOXYLIC ACID HETNAM SO4 SULFATE ION

FORMUL 1 KCX C7 H14 N2 O4 FORMUL 2 SO4 O4 S 2- FORMUL 3 HOH *274(H2 O)

HELIX 1 1 ASN A 2 SER A 12 1 11 HELIX 2 2 HIS A 22 LEU A 32 1 11 HELIX 3 3 ASN A 34 GLN A 38 5 5 HELIX 4 4 GLY A 49 SER A 64 1 16 HELIX 5 5 ARG A 78 GLU A 81 5 4 HELIX 6 6 PRO A 91 GLN A 113 1 23 HELIX 7 7 THR A 119 ARG A 135 1 17 HELIX 8 8 HIS A 170 GLY A 175 1 6 HELIX 9 9 THR A 177 GLY A 187 1 11 HELIX 10 10 VAL A 201 GLY A 216 1 16 HELIX 11 11 GLY A 258 THR A 279 1 22 HELIX 12 12 THR A 284 SER A 295 1 12 HELIX 13 13 ASN A 317 PHE A 332 1 16 HELIX 14 14 SER A 390 VAL A 402 1 13 HELIX 15 15 SER A 412 GLY A 425 1 14

SHEET 1 A 8 GLU A 88 PRO A 89 0 SHEET 2 A 8 ILE A 83 ILE A 85 -1 N ILE A 85 O GLU A 88 SHEET 3 A 8 VAL A 68 TYR A 71 -1 N LEU A 70 O MET A 84 SHEET 4 A 8 VAL A 139 GLU A 143 1 O VAL A 141 N GLY A 69 SHEET 5 A 8 TYR A 41 THR A 45 1 N ILE A 42 O ILE A 142 SHEET 6 A 8 VAL A 160 LEU A 163 1 O VAL A 162 N THR A 45 SHEET 7 A 8 VAL A 195 THR A 197 1 O VAL A 196 N SER A 161 SHEET 8 A 8 TRP A 219 ARG A 221 1 O LEU A 220 N VAL A 195 SHEET 1 B 3 PHE A 226 LEU A 233 0 SHEET 2 B 3 GLN A 238 ASP A 244 -1 O GLU A 243 N SER A 227 SHEET 3 B 3 GLY A 247 VAL A 254 -1 O VAL A 254 N GLN A 238 SHEET 1 C 5 GLU A 302 SER A 305 0 SHEET 2 C 5 ILE A 310 ILE A 312 -1 O ILE A 312 N GLU A 302 SHEET 3 C 5 ILE A 407 THR A 410 1 O ILE A 409 N VAL A 311 SHEET 4 C 5 THR A 337 ALA A 340 1 N ILE A 339 O VAL A 408 SHEET 5 C 5 THR A 361 LEU A 364 1 O TYR A 363 N VAL A 338

LINK C HIS A 184 N KCX A 185 1555 1555 1.33 LINK C KCX A 185 N ALA A 186 1555 1555 1.33

CISPEP 1 ALA A 73 PRO A 74 0 -3.65 CISPEP 2 THR A 307 PRO A 308 0 -1.17

SITE 1 AC1 7 GLY A 49 LYS A 50 GLY A 51 SER A 52 SITE 2 AC1 7 TRP A 297 ARG A 300 HOH A 642

CRYST1 53.120 45.860 84.270 90.00 106.97 90.00 P 1 21 1 2

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 0.018825 0.000000 0.005745 0.00000

SCALE2 0.000000 0.021805 0.000000 0.00000

SCALE3 0.000000 0.000000 0.012407 0.00000