HEADER OXYGEN TRANSPORT 01-MAR-73 1LHB OBSLTE 21-JAN-86 1LHB 2LHB TITLE CRYSTAL STRUCTURE ANALYSIS OF SEA LAMPREY HEMOGLOBIN AT 2 TITLE 2 ANGSTROMS RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE:; COMPND 3 CHAIN: NULL; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1 KEYWDS OXYGEN TRANSPORT EXPDTA X-RAY DIFFRACTION AUTHOR W.A.HENDRICKSON,W.E.LOVE,J.KARLE REVDAT 14 21-JAN-86 1LHB 3 OBSLTE REVDAT 13 04-MAR-85 1LHB 1 SEQRES REVDAT 12 17-FEB-84 1LHB 1 REMARK REVDAT 11 30-SEP-83 1LHB 1 REVDAT REVDAT 10 07-MAR-83 1LHB 3 ATOM REVDAT 9 14-SEP-81 1LHB 1 REMARK REVDAT 8 31-DEC-80 1LHB 1 REMARK REVDAT 7 10-JUL-80 1LHB 3 ATOM REVDAT 6 07-APR-80 1LHB 3 ATOM REVDAT 5 19-SEP-78 1LHB 2 CONECT REVDAT 4 20-JUL-78 1LHB 2 CONECT REVDAT 3 01-NOV-77 1LHB 1 AUTHOR JRNL REMARK FORMUL REVDAT 2 09-SEP-77 1LHB 3 REMARK HETATM REVDAT 1 06-JAN-77 1LHB 0 JRNL AUTH W.A.HENDRICKSON,W.E.LOVE,J.KARLE JRNL TITL CRYSTAL STRUCTURE ANALYSIS OF SEA LAMPREY JRNL TITL 2 HEMOGLOBIN AT 2 ANGSTROMS RESOLUTION JRNL REF J.MOL.BIOL. V. 74 331 1973 JRNL REFN ASTM JMOBAK UK ISSN 0022-2836 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH W.A.HENDRICKSON,W.E.LOVE REMARK 1 TITL STRUCTURE OF LAMPREY HAEMOGLOBIN REMARK 1 REF NATURE NEW BIOL. V. 232 197 1971 REMARK 1 REFN ASTM NNBYA7 UK ISSN 0369-4887 REMARK 1 REFERENCE 2 REMARK 1 EDIT R.J.FELDMANN REMARK 1 REF ATLAS OF MACROMOLECULAR 36 1976 REMARK 1 REF 2 STRUCTURE ON MICROFICHE REMARK 1 PUBL TRACOR JITCO INC.,ROCKVILLE,MD. REMARK 1 REFN ISBN 0-917934-01-6 REMARK 1 REFERENCE 3 REMARK 1 EDIT M.O.DAYHOFF REMARK 1 REF ATLAS OF PROTEIN SEQUENCE V. 5 222 1976 REMARK 1 REF 2 AND STRUCTURE,SUPPLEMENT 2 REMARK 1 PUBL NATIONAL BIOMEDICAL RESEARCH FOUNDATION, SILVER REMARK 1 PUBL 2 SPRING,MD. REMARK 1 REFN ISSN 0-912466-05-7 REMARK 2 REMARK 2 RESOLUTION. NULL ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : NULL REMARK 3 AUTHORS : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : NULL 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) : NULL 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 : 1137 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 45 REMARK 3 SOLVENT ATOMS : 0 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) : NULL 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 1LHB COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 5 REMARK 5 1LHB CORRECTION. REFORMAT HEADER INFORMATION TO MEET NEW REMARK 5 1LHB SPECIFICATIONS. 1LHB ADD FORMUL RECORDS. 1LHB 01-NOV- REMARK 5 77. 1LHB REMARK 6 REMARK 6 1LHB CORRECTION. FIX TWO CONECT RECORDS. 20-JUL-78. 1LHB REMARK 7 REMARK 7 1LHB CORRECTION. FIX CONECT RECORD. 19-SEP-78. 1LHB REMARK 8 REMARK 8 1LHB CORRECTION. STANDARDIZE NOMENCLATURE TO FOLLOW IUPAC- REMARK 8 IUB 1LHB RECOMMENDATIONS. INTERCHANGE CD1 AND CD2 FOR REMARK 8 LEUCINES 1LHB 11, 38, 58, 64, 100, 118, 136, 137, 143, 144. REMARK 8 INTERCHANGE 1LHB CG1 AND CG2 FOR VALINES 3, 8, 26, 35, 39, REMARK 8 70, 81, 85, 110, 1LHB 117, 121, 126. 07-APR-80. 1LHB REMARK 9 REMARK 9 1LHB CORRECTION. FIX ATOM NUMBER FOR ATOM 531. 10-JUL-80. REMARK 9 1LHB REMARK 10 REMARK 10 1LHB CORRECTION. STANDARDIZE FORMAT OF REMARK 2. 31-DEC-80. REMARK 10 1LHB REMARK 11 REMARK 11 1LHB CORRECTION. CORRECT JOURNAL NAME FOR REFERENCE 1. 1LHB REMARK 11 14-SEP-81. 1LHB REMARK 12 REMARK 12 1LHB CORRECTION. CORRECT ATOM NAME FOR ATOM 1037. 07-MAR- REMARK 12 83. 1LHB REMARK 13 REMARK 13 1LHB CORRECTION. INSERT REVDAT RECORDS. 30-SEP-83. 1LHB REMARK 14 REMARK 14 1LHB CORRECTION. CORRECT ISSN FOR REFERENCE 1. 17-FEB-84. REMARK 14 1LHB REMARK 15 REMARK 15 1LHB CORRECTION. CORRECT NUMBER OF SEQRES RECORD. 04-MAR- REMARK 15 85. 1LHB REMARK 16 REMARK 16 1LHB CORRECTION. THIS ENTRY IS OBSOLETE. 21-JAN-86. 1LHB 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 (%): 41.02 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.09 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL 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 1/2-X,-Y,1/2+Z REMARK 290 3555 -X,1/2+Y,1/2-Z REMARK 290 4555 1/2+X,1/2-Y,-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 22.28500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 15.67000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 48.31000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 15.67000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 22.28500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 48.31000 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 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 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 CG2 VAL 110 CBC HEM 1 1.53 REMARK 500 NE2 HIS 104 FE HEM 1 1.67 REMARK 500 NZ LYS 16 OD1 ASP 89 1.72 REMARK 500 CE LYS 16 OD1 ASP 89 1.79 REMARK 500 O LEU 137 CG2 ILE 140 1.82 REMARK 500 CB SER 101 O LEU 144 1.92 REMARK 500 O THR 43 N THR 45 2.04 REMARK 500 O LEU 100 CB HIS 104 2.06 REMARK 500 O THR 45 N ALA 48 2.07 REMARK 500 O ALA 123 O ALA 127 2.07 REMARK 500 O THR 43 CD PRO 46 2.08 REMARK 500 O ASP 36 CE LYS 40 2.09 REMARK 500 O PHE 42 N PRO 46 2.11 REMARK 500 CE1 PHE 42 CD1 PHE 52 2.15 REMARK 500 O GLU 92 N MET 94 2.15 REMARK 500 CD LYS 16 OD1 ASP 89 2.16 REMARK 500 CE1 PHE 42 CE1 PHE 52 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 OE2 GLU 113 CE LYS 135 4454 0.64 REMARK 500 OE2 GLU 113 NZ LYS 135 4454 1.06 REMARK 500 OH TYR 27 NZ LYS 65 2565 1.61 REMARK 500 CD LYS 98 OE1 GLU 109 4555 1.61 REMARK 500 CD GLU 113 CE LYS 135 4454 1.70 REMARK 500 CE LYS 98 OE1 GLU 109 4555 1.71 REMARK 500 CD GLU 113 NZ LYS 135 4454 1.81 REMARK 500 OE2 GLU 113 CD LYS 135 4454 1.89 REMARK 500 NZ LYS 98 OE1 GLU 109 4555 1.94 REMARK 500 NZ LYS 98 O PHE 108 4555 1.95 REMARK 500 NZ LYS 93 NH2 ARG 145 4555 2.07 REMARK 500 NZ LYS 98 CG GLU 109 4555 2.13 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 PHE 51 N - CA - C ANGL. DEV. = 30.9 DEGREES REMARK 500 LEU 58 N - CA - C ANGL. DEV. =-26.7 DEGREES REMARK 500 ALA 61 N - CA - C ANGL. DEV. =-22.9 DEGREES REMARK 500 GLY 132 N - CA - C ANGL. DEV. =-34.9 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 62 -73.08 72.85 REMARK 500 MET 88 64.56 -16.25 REMARK 500 ASP 89 47.97 125.38 REMARK 500 GLU 109 -131.27 82.97 REMARK 500 VAL 110 120.82 125.30 REMARK 500 ASP 130 134.72 88.88 SEQRES 1 148 PRO ILE VAL ASP THR GLY SER VAL ALA PRO LEU SER ALA SEQRES 2 148 ALA GLU LYS THR LYS ILE ARG SER ALA TRP ALA PRO VAL SEQRES 3 148 TYR SER ASP TYR GLU THR SER GLY VAL ASP ILE LEU VAL SEQRES 4 148 LYS PHE PHE THR SER THR PRO ALA ALA GLU GLU PHE PHE SEQRES 5 148 PRO LYS PHE LYS GLY LEU THR THR ALA ASP GLU LEU LYS SEQRES 6 148 LYS SER ALA ASP VAL ARG TRP HIS ALA GLU ARG ILE ILE SEQRES 7 148 ASP ALA VAL ASP ASP ALA VAL ALA SER MET ASP ASP THR SEQRES 8 148 GLU LYS MET SER SER MET LYS ASP LEU SER GLY LYS HIS SEQRES 9 148 ALA LYS SER PHE GLU VAL ASP PRO GLU TYR PHE LYS VAL SEQRES 10 148 LEU ALA ALA VAL ILE ALA ASP THR VAL ALA ALA GLY ASP SEQRES 11 148 ALA GLY PHE GLU LYS LEU LEU ARG MET ILE CYS ILE LEU SEQRES 12 148 LEU ARG SER ALA TYR HET HEM 1 45 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 HELIX 1 A SER 12 ASP 29 1 18 HELIX 2 B TYR 30 SER 44 1 15 HELIX 3 C THR 45 PHE 52 5 8 HELIX 4 D ASP 62 LYS 66 1 5 HELIX 5 E SER 67 MET 88 1 22 HELIX 6 F GLU 92 LYS 106 5TYPE 1 FROM ASN 98 ONWARDS 15 HELIX 7 G ASP 111 ALA 127 1BEGIN WITH 1 TURN OF TYPE 5 17 HELIX 8 H GLY 132 TYR 148 1RESIDUES 146-148 FORM TYPE 5 17 CRYST1 44.570 96.620 31.340 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 0.022437 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010350 0.000000 0.00000 SCALE3 0.000000 0.000000 0.031908 0.00000