2HFW - Header Asymmetric Unit

HEADER LYASE 26-JUN-06 2HFW

TITLE STRUCTURAL AND KINETIC ANALYSIS OF PROTON SHUTTLE RESIDUES TITLE 2 IN THE ACTIVE SITE OF HUMAN CARBONIC ANHYDRASE III

COMPND MOL_ID: 1; COMPND 2 MOLECULE: CARBONIC ANHYDRASE 3; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: HCA III; COMPND 5 SYNONYM: CARBONIC ANHYDRASE III, CARBONATE DEHYDRATASE III, COMPND 6 CA-III; COMPND 7 EC: 4.2.1.1; COMPND 8 ENGINEERED: YES; COMPND 9 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: CA3; 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: PET

KEYWDS PROTON SHUTTLE, HCA III, PROTON TRANSFER, LYASE

EXPDTA X-RAY DIFFRACTION

AUTHOR I.ELDER,S.Z.FISHER,P.J.LAIPIS,C.K.TU,R.MCKENNA,D.N.SILVERMAN

REVDAT 3 24-FEB-09 2HFW 1 VERSN REVDAT 2 05-JUN-07 2HFW 1 JRNL REVDAT 1 08-MAY-07 2HFW 0

JRNL AUTH I.ELDER,Z.FISHER,P.J.LAIPIS,C.TU,R.MCKENNA, JRNL AUTH 2 D.N.SILVERMAN JRNL TITL STRUCTURAL AND KINETIC ANALYSIS OF PROTON SHUTTLE JRNL TITL 2 RESIDUES IN THE ACTIVE SITE OF HUMAN CARBONIC JRNL TITL 3 ANHYDRASE III. JRNL REF PROTEINS V. 68 337 2007 JRNL REFN ISSN 0887-3585 JRNL PMID 17427958 JRNL DOI 10.1002/PROT.21403

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES, PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 8166 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : 5% RANDOM REMARK 3 R VALUE (WORKING SET) : 0.204 REMARK 3 FREE R VALUE : 0.239 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 448 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2065 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 35 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

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

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-JUN-06. REMARK 100 THE RCSB ID CODE IS RCSB038300.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 06-JUN-04 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 5.8 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 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : OSMIC MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 8529 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 90.3 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.10400 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.59 REMARK 200 COMPLETENESS FOR SHELL (%) : 88.5 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 <I/SIGMA(I)> 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: CNS REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.53 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.18 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M AMMONIUM ACETATE, 0.1 M REMARK 280 SODIUM ACETATE, 30% PEG 4K, PH 5.8, VAPOR DIFFUSION, HANGING REMARK 280 DROP, TEMPERATURE 277K

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 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 21.18650 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 58.82950 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 25.83700 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 58.82950 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 21.18650 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 25.83700 REMARK 290 SMTRY3 4 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 300 REMARK: MONOMERIC ENZYME WITH ONE MONOMER IN THE A.U.

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 MET A 1 REMARK 465 ALA A 2 REMARK 465 LYS A 3

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 OG1 THR A 35 OD1 ASP A 110 1.86 REMARK 500 O THR A 35 O HOH A 403 2.16 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 OE1 GLU A 18 NZ LYS A 113 4456 1.80 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 TRP A 47 CG TRP A 47 CD1 -0.085 REMARK 500 TRP A 47 CE3 TRP A 47 CZ3 -0.115 REMARK 500 VAL A 69 CB VAL A 69 CG1 -0.139 REMARK 500 PHE A 93 CD1 PHE A 93 CE1 -0.122 REMARK 500 TRP A 97 CG TRP A 97 CD1 -0.087 REMARK 500 GLU A 106 CD GLU A 106 OE2 -0.073 REMARK 500 TYR A 114 CE1 TYR A 114 CZ -0.098 REMARK 500 GLU A 117 CD GLU A 117 OE1 -0.085 REMARK 500 GLU A 117 CD GLU A 117 OE2 -0.069 REMARK 500 VAL A 121 CB VAL A 121 CG1 -0.128 REMARK 500 VAL A 121 CB VAL A 121 CG2 -0.131 REMARK 500 VAL A 143 CB VAL A 143 CG1 -0.128 REMARK 500 ALA A 187 CA ALA A 187 CB -0.141 REMARK 500 TYR A 191 CD1 TYR A 191 CE1 -0.147 REMARK 500 TYR A 191 CE1 TYR A 191 CZ -0.098 REMARK 500 TYR A 191 CZ TYR A 191 OH -0.106 REMARK 500 TYR A 191 CZ TYR A 191 CE2 -0.124 REMARK 500 TYR A 191 CE2 TYR A 191 CD2 -0.090 REMARK 500 TRP A 192 CE3 TRP A 192 CZ3 -0.115 REMARK 500 TYR A 194 CZ TYR A 194 CE2 -0.087 REMARK 500 GLY A 196 C GLY A 196 O -0.108 REMARK 500 GLU A 205 CD GLU A 205 OE1 -0.072 REMARK 500 GLU A 205 CD GLU A 205 OE2 -0.074 REMARK 500 CYS A 206 CB CYS A 206 SG -0.124 REMARK 500 VAL A 218 CB VAL A 218 CG2 -0.165 REMARK 500 VAL A 256 CB VAL A 256 CG2 -0.128 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 ASP A 52 CB - CG - OD2 ANGL. DEV. = 9.5 DEGREES REMARK 500 PRO A 85 C - N - CD ANGL. DEV. = -14.6 DEGREES REMARK 500 ASP A 101 CB - CG - OD2 ANGL. DEV. = 6.9 DEGREES REMARK 500 THR A 130 N - CA - CB ANGL. DEV. = 13.8 DEGREES REMARK 500 ASP A 190 CB - CG - OD2 ANGL. DEV. = 5.9 DEGREES REMARK 500 CYS A 206 CA - CB - SG ANGL. DEV. = 9.8 DEGREES REMARK 500 ASP A 221 CB - CG - OD2 ANGL. DEV. = 6.6 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 ALA A 8 -91.82 -106.29 REMARK 500 SER A 9 15.05 -167.75 REMARK 500 HIS A 10 -5.56 -155.26 REMARK 500 ASP A 14 -22.78 -20.11 REMARK 500 ALA A 23 -7.10 -47.04 REMARK 500 LYS A 57 -62.58 -124.05 REMARK 500 ARG A 76 -75.27 -108.91 REMARK 500 HIS A 94 -156.66 -152.98 REMARK 500 ASN A 129 -23.33 77.46 REMARK 500 THR A 130 131.73 -179.48 REMARK 500 ASP A 165 -24.24 -37.94 REMARK 500 LYS A 168 -56.29 -8.15 REMARK 500 LYS A 170 145.99 -38.02 REMARK 500 SER A 183 -32.87 -38.76 REMARK 500 LEU A 229 161.69 -34.62 REMARK 500 ALA A 233 -177.24 -43.35 REMARK 500 ASN A 235 2.91 -60.10 REMARK 500 PRO A 238 147.28 -19.08 REMARK 500 VAL A 239 130.38 -173.65 REMARK 500 ASN A 244 36.53 -151.49 REMARK 500 ASN A 252 -125.32 38.94 REMARK 500 ASN A 253 44.82 -95.59 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 PRO A 13 ASP A 14 141.18 REMARK 500 VAL A 49 SER A 50 144.46 REMARK 500 PRO A 85 GLY A 86 -133.87 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 ZN A 262 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 119 ND1 REMARK 620 2 HOH A 326 O 92.1 REMARK 620 3 HIS A 96 NE2 97.8 135.4 REMARK 620 N 1 2

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 262

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2HFX RELATED DB: PDB REMARK 900 RELATED ID: 2HFY RELATED DB: PDB

DBREF 2HFW A 1 260 UNP P07451 CAH3_HUMAN 0 259

SEQADV 2HFW HIS A 64 UNP P07451 LYS 63 ENGINEERED SEQADV 2HFW ASN A 67 UNP P07451 ARG 66 ENGINEERED SEQADV 2HFW SER A 182 UNP P07451 CYS 181 ENGINEERED SEQADV 2HFW SER A 188 UNP P07451 CYS 187 ENGINEERED

SEQRES 1 A 260 MET ALA LYS GLU TRP GLY TYR ALA SER HIS ASN GLY PRO SEQRES 2 A 260 ASP HIS TRP HIS GLU LEU PHE PRO ASN ALA LYS GLY GLU SEQRES 3 A 260 ASN GLN SER PRO ILE GLU LEU HIS THR LYS ASP ILE ARG SEQRES 4 A 260 HIS ASP PRO SER LEU GLN PRO TRP SER VAL SER TYR ASP SEQRES 5 A 260 GLY GLY SER ALA LYS THR ILE LEU ASN ASN GLY HIS THR SEQRES 6 A 260 CYS ASN VAL VAL PHE ASP ASP THR TYR ASP ARG SER MET SEQRES 7 A 260 LEU ARG GLY GLY PRO LEU PRO GLY PRO TYR ARG LEU ARG SEQRES 8 A 260 GLN PHE HIS LEU HIS TRP GLY SER SER ASP ASP HIS GLY SEQRES 9 A 260 SER GLU HIS THR VAL ASP GLY VAL LYS TYR ALA ALA GLU SEQRES 10 A 260 LEU HIS LEU VAL HIS TRP ASN PRO LYS TYR ASN THR PHE SEQRES 11 A 260 LYS GLU ALA LEU LYS GLN ARG ASP GLY ILE ALA VAL ILE SEQRES 12 A 260 GLY ILE PHE LEU LYS ILE GLY HIS GLU ASN GLY GLU PHE SEQRES 13 A 260 GLN ILE PHE LEU ASP ALA LEU ASP LYS ILE LYS THR LYS SEQRES 14 A 260 GLY LYS GLU ALA PRO PHE THR LYS PHE ASP PRO SER SER SEQRES 15 A 260 LEU PHE PRO ALA SER ARG ASP TYR TRP THR TYR GLN GLY SEQRES 16 A 260 SER PHE THR THR PRO PRO CYS GLU GLU CYS ILE VAL TRP SEQRES 17 A 260 LEU LEU LEU LYS GLU PRO MET THR VAL SER SER ASP GLN SEQRES 18 A 260 MET ALA LYS LEU ARG SER LEU LEU SER SER ALA GLU ASN SEQRES 19 A 260 GLU PRO PRO VAL PRO LEU VAL SER ASN TRP ARG PRO PRO SEQRES 20 A 260 GLN PRO ILE ASN ASN ARG VAL VAL ARG ALA SER PHE LYS

HET ZN A 262 1

HETNAM ZN ZINC ION

FORMUL 2 ZN ZN 2+ FORMUL 3 HOH *35(H2 O)

HELIX 1 1 GLY A 12 LEU A 19 5 8 HELIX 2 2 PRO A 21 GLY A 25 5 5 HELIX 3 3 HIS A 34 ILE A 38 5 5 HELIX 4 4 ASP A 52 GLY A 54 5 3 HELIX 5 5 PRO A 125 ASN A 129 5 4 HELIX 6 6 ASN A 154 ALA A 163 1 10 HELIX 7 7 LEU A 164 ILE A 167 5 4 HELIX 8 8 ASP A 180 PHE A 185 5 6 HELIX 9 9 SER A 219 ARG A 227 1 9

SHEET 1 A 2 GLU A 32 LEU A 33 0 SHEET 2 A 2 THR A 108 VAL A 109 1 O THR A 108 N LEU A 33 SHEET 1 B10 ARG A 39 HIS A 40 0 SHEET 2 B10 ARG A 257 ALA A 258 1 O ALA A 258 N ARG A 39 SHEET 3 B10 TYR A 191 GLY A 196 -1 N THR A 193 O ARG A 257 SHEET 4 B10 ILE A 207 LEU A 212 -1 O LEU A 211 N TRP A 192 SHEET 5 B10 ILE A 141 ILE A 150 1 N VAL A 143 O LEU A 210 SHEET 6 B10 ALA A 116 TRP A 123 -1 N LEU A 118 O ILE A 146 SHEET 7 B10 TYR A 88 TRP A 97 -1 N GLN A 92 O VAL A 121 SHEET 8 B10 CYS A 66 PHE A 70 -1 N VAL A 68 O PHE A 93 SHEET 9 B10 ALA A 56 ASN A 61 -1 N LEU A 60 O ASN A 67 SHEET 10 B10 GLU A 173 PRO A 175 -1 O ALA A 174 N ILE A 59 SHEET 1 C 6 TRP A 47 SER A 50 0 SHEET 2 C 6 MET A 78 GLY A 81 -1 O ARG A 80 N SER A 48 SHEET 3 C 6 TYR A 88 TRP A 97 -1 O TYR A 88 N LEU A 79 SHEET 4 C 6 ALA A 116 TRP A 123 -1 O VAL A 121 N GLN A 92 SHEET 5 C 6 ILE A 141 ILE A 150 -1 O ILE A 146 N LEU A 118 SHEET 6 C 6 MET A 216 VAL A 218 1 O VAL A 218 N LYS A 149

LINK ZN ZN A 262 ND1 HIS A 119 1555 1555 2.05 LINK ZN ZN A 262 O HOH A 326 1555 1555 2.74 LINK ZN ZN A 262 NE2 HIS A 96 1555 1555 2.05

CISPEP 1 SER A 29 PRO A 30 0 12.53 CISPEP 2 PRO A 201 PRO A 202 0 15.67

SITE 1 AC1 4 HIS A 94 HIS A 96 HIS A 119 HOH A 326

CRYST1 42.373 51.674 117.659 90.00 90.00 90.00 P 21 21 21 4

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 0.023600 0.000000 0.000000 0.00000

SCALE2 0.000000 0.019352 0.000000 0.00000

SCALE3 0.000000 0.000000 0.008499 0.00000