HEADER PROTEINASE INHIBITOR (TRYPSIN) 14-FEB-91 1TIE TITLE CRYSTAL STRUCTURE OF A KUNITZ-TYPE TRYPSIN INHIBITOR FROM ERYTHRINA TITLE 2 CAFFRA SEEDS COMPND MOL_ID: 1; COMPND 2 MOLECULE: ERYTHRINA TRYPSIN INHIBITOR; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ERYTHRINA CAFFRA; SOURCE 3 ORGANISM_TAXID: 3842 KEYWDS PROTEINASE INHIBITOR (TRYPSIN) EXPDTA X-RAY DIFFRACTION AUTHOR S.ONESTI,P.BRICK,D.M.BLOW REVDAT 5 29-NOV-17 1TIE 1 HELIX REVDAT 4 24-FEB-09 1TIE 1 VERSN REVDAT 3 15-MAY-95 1TIE 1 REMARK REVDAT 2 31-OCT-93 1TIE 1 AUTHOR REVDAT 1 15-JUL-92 1TIE 0 JRNL AUTH S.ONESTI,P.BRICK,D.M.BLOW JRNL TITL CRYSTAL STRUCTURE OF A KUNITZ-TYPE TRYPSIN INHIBITOR FROM JRNL TITL 2 ERYTHRINA CAFFRA SEEDS. JRNL REF J.MOL.BIOL. V. 217 153 1991 JRNL REFN ISSN 0022-2836 JRNL PMID 1988676 JRNL DOI 10.1016/0022-2836(91)90618-G REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH S.ONESTI,L.F.LLOYD,P.BRICK,D.M.BLOW REMARK 1 TITL CRYSTALLIZATION AND PRELIMINARY DIFFRACTION STUDIES OF REMARK 1 TITL 2 ERYTHRINA TRYPSIN INHIBITOR REMARK 1 REF J.MOL.BIOL. V. 210 241 1989 REMARK 1 REFN ISSN 0022-2836 REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 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 : 7770 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) : 0.208 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 : 1232 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 61 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) : 0.016 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 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 1TIE COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000176697. 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 : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL 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 (%): 57.29 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.88 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 65 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+1/6 REMARK 290 6555 X-Y,X,Z+5/6 REMARK 290 7555 Y,X,-Z+2/3 REMARK 290 8555 X-Y,-Y,-Z REMARK 290 9555 -X,-X+Y,-Z+1/3 REMARK 290 10555 -Y,-X,-Z+1/6 REMARK 290 11555 -X+Y,Y,-Z+1/2 REMARK 290 12555 X,X-Y,-Z+5/6 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 95.33333 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 47.66667 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 71.50000 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 23.83333 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 119.16667 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 95.33333 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 47.66667 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 23.83333 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 71.50000 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 119.16667 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 ASP A 94 REMARK 465 GLU A 95 REMARK 465 GLN A 96 REMARK 465 GLU A 97 REMARK 465 SER A 171 REMARK 465 SER A 172 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 GLU A 36 CG CD OE1 OE2 REMARK 470 THR A 38 OG1 CG2 REMARK 470 TYR A 79 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 LYS A 82 CG CD CE NZ REMARK 470 GLU A 93 CG CD OE1 OE2 REMARK 470 SER A 104 OG REMARK 470 GLU A 105 CG CD OE1 OE2 REMARK 470 ASP A 106 CG OD1 OD2 REMARK 470 GLU A 107 CG CD OE1 OE2 REMARK 470 SER A 108 OG REMARK 470 THR A 109 OG1 CG2 REMARK 470 GLN A 123 CG CD OE1 NE2 REMARK 470 LYS A 135 CG CD CE NZ REMARK 470 HIS A 136 CG ND1 CD2 CE1 NE2 REMARK 470 GLU A 137 CG CD OE1 OE2 REMARK 470 LYS A 138 CG CD CE NZ REMARK 470 LYS A 149 CG CD CE NZ REMARK 470 GLU A 158 CG CD OE1 OE2 REMARK 470 ASP A 159 CG OD1 OD2 REMARK 470 TYR A 160 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 GLU A 170 CG CD OE1 OE2 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 A 125 NE2 HIS A 125 CD2 -0.067 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 23 CD1 - CG - CD2 ANGL. DEV. = 5.6 DEGREES REMARK 500 TRP A 23 CE2 - CD2 - CG ANGL. DEV. = -5.4 DEGREES REMARK 500 ARG A 74 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 TRP A 88 CD1 - CG - CD2 ANGL. DEV. = 7.4 DEGREES REMARK 500 TRP A 88 CB - CG - CD1 ANGL. DEV. = -9.3 DEGREES REMARK 500 TRP A 88 CG - CD1 - NE1 ANGL. DEV. = -6.5 DEGREES REMARK 500 TRP A 88 CE2 - CD2 - CG ANGL. DEV. = -6.5 DEGREES REMARK 500 TRP A 88 CG - CD2 - CE3 ANGL. DEV. = 6.9 DEGREES REMARK 500 TRP A 89 CD1 - CG - CD2 ANGL. DEV. = 5.7 DEGREES REMARK 500 TRP A 89 CE2 - CD2 - CG ANGL. DEV. = -5.3 DEGREES REMARK 500 TYR A 151 CB - CG - CD1 ANGL. DEV. = -3.6 DEGREES REMARK 500 ARG A 152 NE - CZ - NH1 ANGL. DEV. = 3.7 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 PRO A 40 90.56 -62.93 REMARK 500 THR A 109 5.31 -66.46 REMARK 500 PHE A 111 31.35 -98.22 REMARK 500 GLU A 137 30.55 73.65 REMARK 500 TYR A 160 66.60 -109.30 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 TYR A 16 0.06 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 700 REMARK 700 SHEET REMARK 700 ETI CONSISTS OF 12 ANTIPARALLEL BETA-STRANDS JOINED BY REMARK 700 LONG LOOPS. SIX OF THE STRANDS FORM A SHORT BARREL WHICH REMARK 700 IS CLOSED AT ONE END BY A "LID" CONSISTING OF THE OTHER REMARK 700 SIX STRANDS COUPLED IN THREE PAIRS. THE MOLECULE SHOWS REMARK 700 APPROXIMATE THREE-FOLD SYMMETRY ABOUT THE THE AXIS OF THE REMARK 700 BARREL, WITH THE REPEATING UNIT CONSISTING OF FOUR REMARK 700 SEQUENTIAL BETA-STRANDS AND THE CONNECTING LOOPS. THE SHEET REMARK 700 PRESENTED AS *B1* ON SHEET RECORDS BELOW IS ACTUALLY THE REMARK 700 SIX-STRANDED BETA-BARREL. THIS IS REPRESENTED BY A REMARK 700 SEVEN-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS REMARK 700 ARE IDENTICAL. DBREF 1TIE A 1 172 UNP P09943 IDE3_ERYCA 1 172 SEQRES 1 A 172 VAL LEU LEU ASP GLY ASN GLY GLU VAL VAL GLN ASN GLY SEQRES 2 A 172 GLY THR TYR TYR LEU LEU PRO GLN VAL TRP ALA GLN GLY SEQRES 3 A 172 GLY GLY VAL GLN LEU ALA LYS THR GLY GLU GLU THR CYS SEQRES 4 A 172 PRO LEU THR VAL VAL GLN SER PRO ASN GLU LEU SER ASP SEQRES 5 A 172 GLY LYS PRO ILE ARG ILE GLU SER ARG LEU ARG SER ALA SEQRES 6 A 172 PHE ILE PRO ASP ASP ASP LYS VAL ARG ILE GLY PHE ALA SEQRES 7 A 172 TYR ALA PRO LYS CYS ALA PRO SER PRO TRP TRP THR VAL SEQRES 8 A 172 VAL GLU ASP GLU GLN GLU GLY LEU SER VAL LYS LEU SER SEQRES 9 A 172 GLU ASP GLU SER THR GLN PHE ASP TYR PRO PHE LYS PHE SEQRES 10 A 172 GLU GLN VAL SER ASP GLN LEU HIS SER TYR LYS LEU LEU SEQRES 11 A 172 TYR CYS GLU GLY LYS HIS GLU LYS CYS ALA SER ILE GLY SEQRES 12 A 172 ILE ASN ARG ASP GLN LYS GLY TYR ARG ARG LEU VAL VAL SEQRES 13 A 172 THR GLU ASP TYR PRO LEU THR VAL VAL LEU LYS LYS ASP SEQRES 14 A 172 GLU SER SER FORMUL 2 HOH *61(H2 O) HELIX 1 1 VAL A 22 GLY A 26 5 5 HELIX 2 2 GLU A 107 ASP A 112 5 6 SHEET 1 B1 7 THR A 15 PRO A 20 0 SHEET 2 B1 7 ILE A 56 SER A 60 -1 SHEET 3 B1 7 VAL A 73 PHE A 77 -1 SHEET 4 B1 7 PHE A 115 SER A 121 -1 SHEET 5 B1 7 SER A 126 CYS A 132 -1 SHEET 6 B1 7 THR A 163 LYS A 168 -1 SHEET 7 B1 7 THR A 15 PRO A 20 -1 SHEET 1 B2 2 VAL A 29 ALA A 32 0 SHEET 1 B3 2 TRP A 89 VAL A 92 0 SHEET 2 B3 2 SER A 100 LEU A 103 -1 SHEET 1 B4 2 CYS A 139 ARG A 146 0 SHEET 2 B4 2 ARG A 152 VAL A 156 -1 SSBOND 1 CYS A 39 CYS A 83 1555 1555 2.02 SSBOND 2 CYS A 132 CYS A 139 1555 1555 2.00 CRYST1 73.400 73.400 143.000 90.00 90.00 120.00 P 65 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 0.013624 0.007866 0.000000 0.00000 SCALE2 0.000000 0.015732 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006993 0.00000 MASTER 377 0 0 2 12 0 0 6 0 0 0 14 END