HEADER SUGAR BINDING PROTEIN 15-JUL-01 1IQB TITLE CRYSTAL STRUCTURE OF URTICA DIOICA AGGLUTININ ISOLECTIN I COMPND MOL_ID: 1; COMPND 2 MOLECULE: AGGLUTININ ISOLECTIN I; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: RESIDUES 1-89; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: URTICA DIOICA; SOURCE 3 ORGANISM_COMMON: GREAT NETTLE; SOURCE 4 ORGANISM_TAXID: 3501 KEYWDS TWO HOMOLOGOUS HEVEIN-LIKE DOMAINS, ZINC COMPLEX, HOMO-DIMER, SUGAR KEYWDS 2 BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR K.HARATA,W.D.SCHUBERT,M.MURAKI REVDAT 7 13-NOV-24 1IQB 1 REMARK REVDAT 6 25-OCT-23 1IQB 1 REMARK LINK REVDAT 5 25-DEC-19 1IQB 1 SEQADV SEQRES LINK REVDAT 4 04-OCT-17 1IQB 1 REMARK REVDAT 3 24-FEB-09 1IQB 1 VERSN REVDAT 2 14-JAN-03 1IQB 1 REMARK REVDAT 1 07-NOV-01 1IQB 0 JRNL AUTH K.HARATA,W.D.SCHUBERT,M.MURAKI JRNL TITL STRUCTURE OF URTICA DIOICA AGGLUTININ ISOLECTIN I: DIMER JRNL TITL 2 FORMATION MEDIATED BY TWO ZINC IONS BOUND AT THE JRNL TITL 3 SUGAR-BINDING SITE. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 57 1513 2001 JRNL REFN ISSN 0907-4449 JRNL PMID 11679714 JRNL DOI 10.1107/S090744490101232X REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 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 : 10402 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.205 REMARK 3 FREE R VALUE : 0.260 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 13.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1355 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) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.93 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 84.30 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.3050 REMARK 3 BIN FREE R VALUE : 0.3870 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 38 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 : 1292 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 87 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 27.50 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) : 0.016 REMARK 3 BOND ANGLES (DEGREES) : 3.320 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC 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 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 1IQB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 19-JUL-01. REMARK 100 THE DEPOSITION ID IS D_1000005175. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-FEB-98 REMARK 200 TEMPERATURE (KELVIN) : 286 REMARK 200 PH : 6.5 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 : ENRAF-NONIUS FR571 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : ENRAF-NONIUS FAST REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MERGF, MADNESS REMARK 200 DATA SCALING SOFTWARE : MERGEF (K.HARATA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14774 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.730 REMARK 200 RESOLUTION RANGE LOW (A) : 25.100 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 89.0 REMARK 200 DATA REDUNDANCY : 3.200 REMARK 200 R MERGE (I) : 0.06900 REMARK 200 R SYM (I) : NULL 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) : 1.73 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.76 REMARK 200 COMPLETENESS FOR SHELL (%) : 25.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.29400 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: X-PLOR REMARK 200 STARTING MODEL: PDB ENTRY 1EHD REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.60 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.11 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG8000, ZINC ACETATE, CACODYLATE, PH REMARK 280 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K 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 21.05500 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 800 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 8870 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -69.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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: 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 HIS B 67 NE2 HIS B 67 CD2 -0.071 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 TRP A 16 CD1 - CG - CD2 ANGL. DEV. = 7.2 DEGREES REMARK 500 TRP A 16 CE2 - CD2 - CG ANGL. DEV. = -6.5 DEGREES REMARK 500 TRP A 21 CD1 - CG - CD2 ANGL. DEV. = 7.7 DEGREES REMARK 500 TRP A 21 CE2 - CD2 - CG ANGL. DEV. = -6.3 DEGREES REMARK 500 TRP A 23 CD1 - CG - CD2 ANGL. DEV. = 7.6 DEGREES REMARK 500 TRP A 23 CG - CD1 - NE1 ANGL. DEV. = -6.1 DEGREES REMARK 500 TRP A 23 CE2 - CD2 - CG ANGL. DEV. = -6.2 DEGREES REMARK 500 TRP A 40 CD1 - CG - CD2 ANGL. DEV. = 6.3 DEGREES REMARK 500 TRP A 40 CE2 - CD2 - CG ANGL. DEV. = -5.6 DEGREES REMARK 500 ARG A 44 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 TRP A 69 CD1 - CG - CD2 ANGL. DEV. = 7.7 DEGREES REMARK 500 TRP A 69 CG - CD1 - NE1 ANGL. DEV. = -6.3 DEGREES REMARK 500 TRP A 69 CE2 - CD2 - CG ANGL. DEV. = -6.2 DEGREES REMARK 500 TRP B 16 CD1 - CG - CD2 ANGL. DEV. = 7.2 DEGREES REMARK 500 TRP B 16 CE2 - CD2 - CG ANGL. DEV. = -6.2 DEGREES REMARK 500 TRP B 16 CG - CD2 - CE3 ANGL. DEV. = 5.8 DEGREES REMARK 500 TRP B 21 CD1 - CG - CD2 ANGL. DEV. = 6.6 DEGREES REMARK 500 TRP B 21 CE2 - CD2 - CG ANGL. DEV. = -6.2 DEGREES REMARK 500 TRP B 23 CD1 - CG - CD2 ANGL. DEV. = 5.4 DEGREES REMARK 500 TRP B 23 CE2 - CD2 - CG ANGL. DEV. = -5.5 DEGREES REMARK 500 TRP B 40 CD1 - CG - CD2 ANGL. DEV. = 5.2 DEGREES REMARK 500 TRP B 40 CE2 - CD2 - CG ANGL. DEV. = -5.4 DEGREES REMARK 500 ARG B 48 NE - CZ - NH2 ANGL. DEV. = -5.1 DEGREES REMARK 500 TRP B 69 CD1 - CG - CD2 ANGL. DEV. = 5.6 DEGREES REMARK 500 TRP B 69 CE2 - CD2 - CG ANGL. DEV. = -5.6 DEGREES REMARK 500 CYS B 77 CA - CB - SG ANGL. DEV. = 6.7 DEGREES REMARK 500 SER B 89 N - CA - C ANGL. DEV. = -20.6 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 THR A 34 30.55 -89.98 REMARK 500 SER A 87 -38.52 -150.02 REMARK 500 THR B 34 41.24 -106.48 REMARK 500 SER B 80 -36.39 72.11 REMARK 500 SER B 87 87.76 -154.34 REMARK 500 SER B 88 -43.71 -170.12 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 90 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 47 NE2 REMARK 620 2 HIS B 67 ND1 121.3 REMARK 620 3 HOH B 118 O 106.0 98.2 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN B 91 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 75 OD1 REMARK 620 2 ASP A 75 OD2 50.4 REMARK 620 3 HIS B 47 NE2 101.2 146.6 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 90 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 91 DBREF 1IQB A 1 89 UNP P11218 AGI_URTDI 25 112 DBREF 1IQB B 1 89 UNP P11218 AGI_URTDI 25 112 SEQRES 1 A 89 PCA ARG CYS GLY SER GLN GLY GLY GLY GLY THR CYS PRO SEQRES 2 A 89 ALA LEU TRP CYS CYS SER ILE TRP GLY TRP CYS GLY ASP SEQRES 3 A 89 SER GLU PRO TYR CYS GLY ARG THR CYS GLU ASN LYS CYS SEQRES 4 A 89 TRP SER GLY GLU ARG SER ASP HIS ARG CYS GLY ALA ALA SEQRES 5 A 89 VAL GLY ASN PRO PRO CYS GLY GLN ASP ARG CYS CYS SER SEQRES 6 A 89 VAL HIS GLY TRP CYS GLY GLY GLY ASN ASP TYR CYS SER SEQRES 7 A 89 GLY SER LYS CYS GLN TYR ARG CYS SER SER SER SEQRES 1 B 89 PCA ARG CYS GLY SER GLN GLY GLY GLY GLY THR CYS PRO SEQRES 2 B 89 ALA LEU TRP CYS CYS SER ILE TRP GLY TRP CYS GLY ASP SEQRES 3 B 89 SER GLU PRO TYR CYS GLY ARG THR CYS GLU ASN LYS CYS SEQRES 4 B 89 TRP SER GLY GLU ARG SER ASP HIS ARG CYS GLY ALA ALA SEQRES 5 B 89 VAL GLY ASN PRO PRO CYS GLY GLN ASP ARG CYS CYS SER SEQRES 6 B 89 VAL HIS GLY TRP CYS GLY GLY GLY ASN ASP TYR CYS SER SEQRES 7 B 89 GLY SER LYS CYS GLN TYR ARG CYS SER SER SER MODRES 1IQB PCA A 1 GLN PYROGLUTAMIC ACID MODRES 1IQB PCA B 1 GLN PYROGLUTAMIC ACID HET PCA A 1 8 HET PCA B 1 8 HET ZN A 90 1 HET ZN B 91 1 HETNAM PCA PYROGLUTAMIC ACID HETNAM ZN ZINC ION FORMUL 1 PCA 2(C5 H7 N O3) FORMUL 3 ZN 2(ZN 2+) FORMUL 5 HOH *87(H2 O) HELIX 1 1 CYS A 3 GLY A 8 1 6 HELIX 2 2 CYS A 12 TRP A 16 5 5 HELIX 3 3 SER A 27 GLY A 32 1 6 HELIX 4 4 CYS A 39 GLU A 43 5 5 HELIX 5 5 GLY A 50 GLY A 54 5 5 HELIX 6 6 GLY A 73 SER A 78 1 6 HELIX 7 7 CYS B 3 GLY B 8 1 6 HELIX 8 8 CYS B 12 TRP B 16 5 5 HELIX 9 9 SER B 27 GLY B 32 1 6 HELIX 10 10 CYS B 39 GLU B 43 5 5 HELIX 11 11 GLY B 50 GLY B 54 5 5 HELIX 12 12 GLY B 73 SER B 78 1 6 SHEET 1 A 3 CYS A 24 GLY A 25 0 SHEET 2 A 3 CYS A 17 SER A 19 -1 O CYS A 17 N GLY A 25 SHEET 3 A 3 CYS A 35 ASN A 37 -1 N GLU A 36 O CYS A 18 SHEET 1 B 3 CYS A 70 GLY A 72 0 SHEET 2 B 3 ARG A 62 SER A 65 -1 N CYS A 63 O GLY A 71 SHEET 3 B 3 CYS A 82 TYR A 84 -1 N GLN A 83 O CYS A 64 SHEET 1 C 3 CYS B 24 GLY B 25 0 SHEET 2 C 3 CYS B 17 SER B 19 -1 O CYS B 17 N GLY B 25 SHEET 3 C 3 CYS B 35 ASN B 37 -1 N GLU B 36 O CYS B 18 SHEET 1 D 3 CYS B 70 GLY B 71 0 SHEET 2 D 3 CYS B 63 SER B 65 -1 N CYS B 63 O GLY B 71 SHEET 3 D 3 CYS B 82 TYR B 84 -1 N GLN B 83 O CYS B 64 SSBOND 1 CYS A 3 CYS A 18 1555 1555 2.01 SSBOND 2 CYS A 12 CYS A 24 1555 1555 2.04 SSBOND 3 CYS A 17 CYS A 31 1555 1555 1.95 SSBOND 4 CYS A 35 CYS A 39 1555 1555 1.99 SSBOND 5 CYS A 49 CYS A 64 1555 1555 2.00 SSBOND 6 CYS A 58 CYS A 70 1555 1555 2.03 SSBOND 7 CYS A 63 CYS A 77 1555 1555 2.04 SSBOND 8 CYS A 82 CYS A 86 1555 1555 2.06 SSBOND 9 CYS B 3 CYS B 18 1555 1555 2.02 SSBOND 10 CYS B 12 CYS B 24 1555 1555 2.06 SSBOND 11 CYS B 17 CYS B 31 1555 1555 2.00 SSBOND 12 CYS B 35 CYS B 39 1555 1555 2.02 SSBOND 13 CYS B 49 CYS B 64 1555 1555 2.01 SSBOND 14 CYS B 58 CYS B 70 1555 1555 2.04 SSBOND 15 CYS B 63 CYS B 77 1555 1555 2.01 SSBOND 16 CYS B 82 CYS B 86 1555 1555 2.03 LINK C PCA A 1 N ARG A 2 1555 1555 1.31 LINK C PCA B 1 N ARG B 2 1555 1555 1.33 LINK NE2 HIS A 47 ZN ZN A 90 1555 1555 2.07 LINK OD1 ASP A 75 ZN ZN B 91 1555 1555 2.11 LINK OD2 ASP A 75 ZN ZN B 91 1555 1555 2.74 LINK ZN ZN A 90 ND1 HIS B 67 1555 1555 2.40 LINK ZN ZN A 90 O HOH B 118 1555 1555 2.51 LINK NE2 HIS B 47 ZN ZN B 91 1555 1555 2.25 SITE 1 AC1 4 SER A 45 HIS A 47 HIS B 67 HOH B 118 SITE 1 AC2 2 ASP A 75 HIS B 47 CRYST1 30.710 42.110 62.590 90.00 101.55 90.00 P 1 21 1 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 0.032563 0.000000 0.006655 0.00000 SCALE2 0.000000 0.023747 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016307 0.00000 HETATM 1 N PCA A 1 18.593 2.535 66.132 1.00 31.30 N HETATM 2 CA PCA A 1 19.897 2.797 66.678 1.00 26.79 C HETATM 3 CB PCA A 1 20.880 2.103 65.748 1.00 28.87 C HETATM 4 CG PCA A 1 19.944 1.447 64.761 1.00 30.87 C HETATM 5 CD PCA A 1 18.637 2.194 64.873 1.00 31.33 C HETATM 6 OE PCA A 1 17.589 1.896 64.308 1.00 37.93 O HETATM 7 C PCA A 1 20.017 4.306 66.711 1.00 21.31 C HETATM 8 O PCA A 1 19.197 5.056 66.169 1.00 20.66 O