HEADER LECTIN (AGGLUTININ) 10-MAR-95 1SBA OBSLTE 09-DEC-98 1SBA 2SBA TITLE X-RAY CRYSTAL STRUCTURE OF THE SOYBEAN AGGLUTININ CROSS- TITLE 2 LINKED WITH A BIANTENNARY ANALOG OF THE BLOOD GROUP I TITLE 3 CARBOHYDRATE ANTIGEN COMPND MOL_ID: 1; COMPND 2 MOLECULE:; COMPND 3 CHAIN: NULL; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1 KEYWDS LECTIN (AGGLUTININ) EXPDTA X-RAY DIFFRACTION AUTHOR A.DESSEN,D.GUPTA,S.SABESAN,C.F.BREWER,J.C.SACCHETTINI REVDAT 1 10-JUL-95 1SBA 0 JRNL AUTH A.DESSEN,D.GUPTA,S.SABESAN,C.F.BREWER, JRNL AUTH 2 J.C.SACCHETTINI JRNL TITL X-RAY CRYSTAL STRUCTURE OF THE SOYBEAN AGGLUTININ JRNL TITL 2 CROSS-LINKED WITH A BIANTENNARY ANALOG OF THE JRNL TITL 3 BLOOD GROUP I CARBOHYDRATE ANTIGEN JRNL REF BIOCHEMISTRY V. 34 4933 1995 JRNL REFN ASTM BICHAW US ISSN 0006-2960 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 2.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 1SBA REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL 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 : NULL REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.201 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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 : 1809 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 54 REMARK 3 SOLVENT ATOMS : 32 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) : 0.022 REMARK 3 BOND ANGLES (DEGREES) : 2.30 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 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 1SBA COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 5 REMARK 5 1SBA PEPTIDE BOND BETWEEN ALA 87 AND ASP 88 IS A CIS REMARK 5 PEPTIDE 1SBA BOND AS FOUND IN MOST OTHER LECTINS. 1SBA REMARK 6 REMARK 6 1SBA ORIGINAL DEPOSITION REVISED PRIOR TO RELEASE 1SBA REMARK 6 TRACKING NUMBER: T6099, DATE REVISED: 24-MAY-95 1SBA REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 17287 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.600 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 81.0 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): NULL REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): NULL REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 64 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,1/3+Z REMARK 290 3555 -X+Y,-X,2/3+Z REMARK 290 4555 -X,-Y,Z REMARK 290 5555 Y,-X+Y,1/3+Z REMARK 290 6555 X-Y,X,2/3+Z REMARK 290 7555 Y,X,1/3-Z REMARK 290 8555 X-Y,-Y,-Z REMARK 290 9555 -X,-X+Y,2/3-Z REMARK 290 10555 -Y,-X,1/3-Z REMARK 290 11555 -X+Y,Y,-Z REMARK 290 12555 X,X-Y,2/3-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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 36.46667 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 72.93333 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 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 36.46667 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 72.93333 REMARK 290 SMTRY1 7 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 7 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 36.46667 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 9 0.000000 0.000000 -1.000000 72.93333 REMARK 290 SMTRY1 10 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 10 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 36.46667 REMARK 290 SMTRY1 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 11 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 12 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 12 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 72.93333 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT REMARK 300 WHICH CONSISTS OF 1 CHAIN(S). SEE REMARK 350 FOR REMARK 300 INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). REMARK 350 REMARK 350 GENERATING THE BIOMOLECULE 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 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 ALA 235 REMARK 465 SER 236 REMARK 465 SER 237 REMARK 465 ASN 238 REMARK 465 ILE 239 REMARK 465 ASP 240 REMARK 465 PRO 241 REMARK 465 LEU 242 REMARK 465 ASP 243 REMARK 465 LEU 244 REMARK 465 THR 245 REMARK 465 SER 246 REMARK 465 PHE 247 REMARK 465 VAL 248 REMARK 465 LEU 249 REMARK 465 HIS 250 REMARK 465 GLU 251 REMARK 465 ALA 252 REMARK 465 ILE 253 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 REMARK 500 O4 NAG 544 C1 NAG 545 1.38 REMARK 500 C1 GAL 744 O4 NAG 745 1.39 REMARK 500 ND2 ASN 75 C1 NAG 544 1.43 REMARK 500 OE2 GLU 2 ND1 HIS 58 1.48 REMARK 500 ND2 ASN 75 N2 NAG 544 1.84 REMARK 500 O5 GAL 744 O4 NAG 745 1.94 REMARK 500 N VAL 12 NE2 GLN 15 1.96 REMARK 500 ND2 ASN 75 C2 NAG 544 1.98 REMARK 500 OD1 ASP 215 C6 GAL 744 2.11 REMARK 500 OD2 ASP 23 OG SER 47 2.13 REMARK 500 O4 NAG 544 C2 NAG 545 2.17 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 NH1 ARG 147 NH1 ARG 147 10666 0.60 REMARK 500 CZ ARG 147 CZ ARG 147 10666 0.80 REMARK 500 CZ ARG 147 NH1 ARG 147 10666 1.20 REMARK 500 CZ ARG 147 NH2 ARG 147 10666 1.31 REMARK 500 NH2 ARG 147 NH2 ARG 147 10666 1.49 REMARK 500 NE ARG 147 NH2 ARG 147 10666 1.63 REMARK 500 NE ARG 147 NH1 ARG 147 10666 1.87 REMARK 500 NE ARG 147 CZ ARG 147 10666 2.01 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),F6.3) REMARK 500 REMARK 500 EXPECTED VALUES: ENGH AND HUBER, 1991 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 SER 46 N SER 46 CA 0.215 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: ENGH AND HUBER, 1991 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 SER 46 N - CA - C ANGL. DEV. =-23.0 DEGREES 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 M RES CSSEQI PSI PHI REMARK 500 ASP 88 -108.35 82.37 REMARK 500 ASN 136 159.32 83.94 REMARK 999 REMARK 999 1SBA CROSS REFERENCE TO SEQUENCE DATABASE 1SBA SWISS-PROT REMARK 999 ENTRY NAME PDB ENTRY CHAIN NAME 1SBA LEC_SOYBN 1SBA SEQRES 1 253 ALA GLU THR VAL SER PHE SER TRP ASN LYS PHE VAL PRO SEQRES 2 253 LYS GLN PRO ASN MET ILE LEU GLN GLY ASP ALA ILE VAL SEQRES 3 253 THR SER SER GLY LYS LEU GLN LEU ASN LYS VAL ASP GLU SEQRES 4 253 ASN GLY THR PRO LYS PRO SER SER LEU GLY ARG ALA LEU SEQRES 5 253 TYR SER THR PRO ILE HIS ILE TRP ASP LYS GLU THR GLY SEQRES 6 253 SER VAL ALA SER PHE ALA ALA SER PHE ASN PHE THR PHE SEQRES 7 253 TYR ALA PRO ASP THR LYS ARG LEU ALA ASP GLY LEU ALA SEQRES 8 253 PHE PHE LEU ALA PRO ILE ASP THR LYS PRO GLN THR HIS SEQRES 9 253 ALA GLY TYR LEU GLY LEU PHE ASN GLU ASN GLU SER GLY SEQRES 10 253 ASP GLN VAL VAL ALA VAL GLU PHE ASP THR PHE ARG ASN SEQRES 11 253 SER TRP ASP PRO PRO ASN PRO HIS ILE GLY ILE ASN VAL SEQRES 12 253 ASN SER ILE ARG SER ILE LYS THR THR SER TRP ASP LEU SEQRES 13 253 ALA ASN ASN LYS VAL ALA LYS VAL LEU ILE THR TYR ASP SEQRES 14 253 ALA SER THR SER LEU LEU VAL ALA SER LEU VAL TYR PRO SEQRES 15 253 SER GLN ARG THR SER ASN ILE LEU SER ASP VAL VAL ASP SEQRES 16 253 LEU LYS THR SER LEU PRO GLU TRP VAL ARG ILE GLY PHE SEQRES 17 253 SER ALA ALA THR GLY LEU ASP ILE PRO GLY GLU SER HIS SEQRES 18 253 ASP VAL LEU SER TRP SER PHE ALA SER ASN LEU PRO HIS SEQRES 19 253 ALA SER SER ASN ILE ASP PRO LEU ASP LEU THR SER PHE SEQRES 20 253 VAL LEU HIS GLU ALA ILE HET NAG 544 14 HET NAG 545 14 HET GAL 744 10 HET NAG 745 14 HET MN 540 1 HET CA 541 1 HETNAM NAG N-ACETYL-D-GLUCOSAMINE HETNAM GAL BETA-D-GALACTOSE HETNAM MN MANGANESE (II) ION HETNAM CA CALCIUM ION HETSYN NAG NAG FORMUL 2 NAG 3(C8 H15 N O6) FORMUL 3 GAL C6 H12 O6 FORMUL 4 MN MN 2+ FORMUL 5 CA CA 2+ FORMUL 6 HOH *32(H2 O1) HELIX 1 1 ASP 195 SER 199 5 5 SHEET 1 S1 6 ALA 1 LYS 10 0 SHEET 2 S1 6 LEU 224 HIS 234 -1 SHEET 3 S1 6 GLY 65 ALA 80 -1 SHEET 4 S1 6 LYS 160 ALA 170 -1 SHEET 5 S1 6 THR 172 PRO 182 -1 SHEET 6 S1 6 GLN 184 VAL 193 -1 SHEET 1 S2 7 ASN 17 GLY 22 0 SHEET 2 S2 7 SER 46 ILE 57 -1 SHEET 3 S2 7 GLU 202 ASP 215 -1 SHEET 4 S2 7 LYS 84 ALA 95 -1 SHEET 5 S2 7 GLN 119 THR 127 -1 SHEET 6 S2 7 PRO 137 VAL 143 -1 SHEET 7 S2 7 ILE 149 ASN 158 -1 CRYST1 144.900 144.900 109.400 90.00 90.00 120.00 P 64 2 2 12 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 0.006901 0.003984 0.000000 0.00000 SCALE2 0.000000 0.007969 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009141 0.00000