HEADER TOXIN 24-JUL-98 1BMR TITLE ALPHA-LIKE TOXIN LQH III FROM SCORPION LEIURUS QUINQUESTRIATUS TITLE 2 HEBRAEUS, NMR, 25 STRUCTURES COMPND MOL_ID: 1; COMPND 2 MOLECULE: LQH III ALPHA-LIKE TOXIN; COMPND 3 CHAIN: A; COMPND 4 OTHER_DETAILS: AMIDATED AT THE C-TERMINAL POSITION (CONH2) . THIS COMPND 5 STRUCTURE IS IN EQUILIBRIUM WITH THE PRO9-GLU10 CIS ISOMER COMPND 6 (PDB:1FH3). SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: LEIURUS QUINQUESTRIATUS HEBRAEUS; SOURCE 3 ORGANISM_TAXID: 6884; SOURCE 4 STRAIN: HEBRAEUS; SOURCE 5 ORGAN: VENOMOUS APPARATUS; SOURCE 6 SECRETION: VENOM KEYWDS ALPHA-LIKE TOXIN, SCORPION TOXIN, SODIUM CHANNEL INHIBITOR, TOXIN EXPDTA SOLUTION NMR NUMMDL 25 AUTHOR I.KRIMM,N.GILLES,P.SAUTIERE,M.STANKIEWICZ,M.PELHATE,D.GORDON,J.- AUTHOR 2 M.LANCELIN REVDAT 6 20-NOV-24 1BMR 1 REMARK REVDAT 5 16-FEB-22 1BMR 1 REMARK LINK REVDAT 4 24-FEB-09 1BMR 1 VERSN REVDAT 3 03-NOV-00 1BMR 1 COMPND REVDAT 2 27-APR-99 1BMR 3 HET COMPND REMARK TITLE REVDAT 2 2 3 HETATM DBREF SSBOND HEADER REVDAT 2 3 3 TER LINK SOURCE SEQRES REVDAT 2 4 3 ENDMDL FORMUL JRNL KEYWDS REVDAT 2 5 3 HETSYN CONECT REVDAT 1 16-FEB-99 1BMR 0 JRNL AUTH I.KRIMM,N.GILLES,P.SAUTIERE,M.STANKIEWICZ,M.PELHATE, JRNL AUTH 2 D.GORDON,J.M.LANCELIN JRNL TITL NMR STRUCTURES AND ACTIVITY OF A NOVEL ALPHA-LIKE TOXIN FROM JRNL TITL 2 THE SCORPION LEIURUS QUINQUESTRIATUS HEBRAEUS. JRNL REF J.MOL.BIOL. V. 285 1749 1999 JRNL REFN ISSN 0022-2836 JRNL PMID 9917409 JRNL DOI 10.1006/JMBI.1998.2418 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH P.SAUTIERE,S.CESTELE,C.KOPEYAN,A.MARTINAGE,H.DROBECQ, REMARK 1 AUTH 2 Y.DOLJANSKY,D.GORDON REMARK 1 TITL NEW TOXINS ACTING ON SODIUM CHANNELS FROM THE SCORPION REMARK 1 TITL 2 LEIURUS QUINQUESTRIATUS HEBRAEUS SUGGEST A CLUE TO MAMMALIAN REMARK 1 TITL 3 VS INSECT SELECTIVITY REMARK 1 REF TOXICON V. 36 1141 1998 REMARK 1 REFN ISSN 0041-0101 REMARK 1 REFERENCE 2 REMARK 1 AUTH D.GORDON REMARK 1 TITL SODIUM CHANNELS AS TARGETS FOR NEUROTOXINS. MODES OF ACTION REMARK 1 TITL 2 AND INTERACTION OF NEUROTOXINS WITH RECEPTOR SITES ON SODIUM REMARK 1 TITL 3 CHANNELS REMARK 1 EDIT Y.GUTMAN, P.LAZAROVICI REMARK 1 REF TOXINS AND SIGNAL 119 1997 REMARK 1 REF 2 TRANSDUCTION (IN: CELLULAR REMARK 1 REF 3 AND MOLECULAR MECHANISMS OF REMARK 1 REF 4 TOXIN ACTION, V.1) REMARK 1 PUBL AMSTERDAM : HARWOOD ACADEMIC PUBLISHERS REMARK 1 REFN ISSN 90-5702-078-5 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1BMR COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000171918. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 311 REMARK 210 PH : 5.8 REMARK 210 IONIC STRENGTH : 100 MM PHOSPHATE BUFFER REMARK 210 PRESSURE : 1 ATM REMARK 210 SAMPLE CONTENTS : 90% WATER/10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : DQF-COSY TOCSY/HOHAHA NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE DRX500 REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : GIFA 4.2, BRUKER XWINNMR REMARK 210 XWINNMR, X-PLOR 3.851 REMARK 210 METHOD USED : HYBRID DISTANCE GEOMETRY/ REMARK 210 SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 60 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 25 REMARK 210 CONFORMERS, SELECTION CRITERIA : LEAST RESTRAINT VIOLATION REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL REMARK 210 REMARK 210 REMARK: THE STRUCTURE WAS DETERMINED USING TWO-DIMENSIONAL NMR ON REMARK 210 A NATURAL UNLABELLED SAMPLE OF LQH III ALPHA LIKE TOXIN FROM THE REMARK 210 SCORPION LEIURUS QUINQUESTRIATUS HEBRAEUS VENOM. REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS 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 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 1 GLN A 8 N - CA - C ANGL. DEV. = -16.3 DEGREES REMARK 500 1 GLY A 19 N - CA - C ANGL. DEV. = -15.5 DEGREES REMARK 500 1 GLY A 35 N - CA - C ANGL. DEV. = -15.6 DEGREES REMARK 500 1 VAL A 60 N - CA - C ANGL. DEV. = -16.5 DEGREES REMARK 500 2 ASP A 3 N - CA - C ANGL. DEV. = -18.2 DEGREES REMARK 500 2 GLY A 19 N - CA - C ANGL. DEV. = -15.1 DEGREES REMARK 500 2 SER A 20 N - CA - CB ANGL. DEV. = 9.2 DEGREES REMARK 500 2 GLY A 57 N - CA - C ANGL. DEV. = -15.6 DEGREES REMARK 500 3 ASP A 3 N - CA - C ANGL. DEV. = -16.6 DEGREES REMARK 500 3 ASN A 11 N - CA - C ANGL. DEV. = -17.4 DEGREES REMARK 500 3 GLY A 19 N - CA - C ANGL. DEV. = -15.9 DEGREES REMARK 500 3 GLY A 38 N - CA - C ANGL. DEV. = -17.2 DEGREES REMARK 500 3 ALA A 51 N - CA - CB ANGL. DEV. = 9.5 DEGREES REMARK 500 4 GLY A 19 N - CA - C ANGL. DEV. = -16.4 DEGREES REMARK 500 4 GLY A 38 N - CA - C ANGL. DEV. = -15.0 DEGREES REMARK 500 4 GLY A 57 N - CA - C ANGL. DEV. = -16.4 DEGREES REMARK 500 5 ASN A 11 N - CA - C ANGL. DEV. = -17.1 DEGREES REMARK 500 5 HIS A 15 N - CA - C ANGL. DEV. = -16.8 DEGREES REMARK 500 5 GLY A 57 N - CA - C ANGL. DEV. = -15.8 DEGREES REMARK 500 6 PHE A 39 N - CA - C ANGL. DEV. = -16.9 DEGREES REMARK 500 7 TYR A 14 N - CA - C ANGL. DEV. = -17.4 DEGREES REMARK 500 7 GLY A 19 N - CA - C ANGL. DEV. = -15.3 DEGREES REMARK 500 7 GLY A 62 N - CA - C ANGL. DEV. = -18.3 DEGREES REMARK 500 7 CYS A 65 N - CA - C ANGL. DEV. = -16.3 DEGREES REMARK 500 8 ASN A 11 N - CA - C ANGL. DEV. = -18.4 DEGREES REMARK 500 8 CYS A 16 N - CA - C ANGL. DEV. = -16.9 DEGREES REMARK 500 8 GLY A 19 N - CA - C ANGL. DEV. = -15.2 DEGREES REMARK 500 9 GLY A 38 N - CA - C ANGL. DEV. = -16.3 DEGREES REMARK 500 9 GLY A 57 N - CA - C ANGL. DEV. = -15.8 DEGREES REMARK 500 10 ASP A 3 N - CA - C ANGL. DEV. = -16.4 DEGREES REMARK 500 10 GLN A 8 N - CA - C ANGL. DEV. = -17.1 DEGREES REMARK 500 10 ASN A 11 N - CA - C ANGL. DEV. = -18.6 DEGREES REMARK 500 10 LYS A 40 N - CA - C ANGL. DEV. = -17.4 DEGREES REMARK 500 10 LEU A 45 N - CA - C ANGL. DEV. = -16.2 DEGREES REMARK 500 10 CYS A 65 N - CA - C ANGL. DEV. = -17.4 DEGREES REMARK 500 11 TYR A 14 N - CA - C ANGL. DEV. = -17.7 DEGREES REMARK 500 11 CYS A 16 N - CA - C ANGL. DEV. = -16.6 DEGREES REMARK 500 11 PHE A 17 N - CA - C ANGL. DEV. = -16.3 DEGREES REMARK 500 11 GLY A 19 N - CA - C ANGL. DEV. = -16.9 DEGREES REMARK 500 12 GLY A 19 N - CA - C ANGL. DEV. = -17.8 DEGREES REMARK 500 12 GLY A 57 N - CA - C ANGL. DEV. = -16.1 DEGREES REMARK 500 13 ASP A 3 N - CA - C ANGL. DEV. = -17.0 DEGREES REMARK 500 13 ALA A 51 N - CA - C ANGL. DEV. = -16.7 DEGREES REMARK 500 14 ASP A 3 N - CA - C ANGL. DEV. = -16.6 DEGREES REMARK 500 14 CYS A 12 N - CA - CB ANGL. DEV. = 9.1 DEGREES REMARK 500 15 GLY A 42 N - CA - C ANGL. DEV. = -15.4 DEGREES REMARK 500 15 GLY A 44 N - CA - C ANGL. DEV. = -17.3 DEGREES REMARK 500 16 ASP A 3 N - CA - C ANGL. DEV. = -16.6 DEGREES REMARK 500 16 TYR A 14 N - CA - C ANGL. DEV. = -18.3 DEGREES REMARK 500 16 GLY A 19 N - CA - C ANGL. DEV. = -15.0 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 79 ANGLE DEVIATIONS. 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 1 ALA A 7 -150.98 -134.87 REMARK 500 1 GLU A 10 46.85 -86.37 REMARK 500 1 CYS A 12 -162.64 -122.38 REMARK 500 1 PRO A 18 96.47 -56.34 REMARK 500 1 HIS A 43 -69.85 -108.94 REMARK 500 1 ALA A 51 49.73 73.90 REMARK 500 1 ILE A 58 -144.25 -146.21 REMARK 500 1 GLU A 63 -144.80 -102.32 REMARK 500 2 ALA A 7 -159.19 -144.09 REMARK 500 2 ASN A 11 37.40 73.24 REMARK 500 2 CYS A 12 -162.33 -108.94 REMARK 500 2 SER A 20 -34.91 122.80 REMARK 500 2 HIS A 36 -154.51 -177.76 REMARK 500 2 HIS A 43 -71.67 -114.97 REMARK 500 2 ALA A 51 72.58 65.01 REMARK 500 2 ILE A 58 -140.64 -152.32 REMARK 500 2 GLU A 61 -54.80 62.41 REMARK 500 3 ALA A 7 -144.76 -94.30 REMARK 500 3 GLU A 10 -76.35 -88.40 REMARK 500 3 ASN A 11 144.02 -176.84 REMARK 500 3 CYS A 12 -153.48 160.69 REMARK 500 3 TYR A 14 -148.89 -86.01 REMARK 500 3 PRO A 18 103.82 -53.03 REMARK 500 3 HIS A 36 -153.04 -156.66 REMARK 500 3 HIS A 43 -64.71 -125.10 REMARK 500 3 ALA A 51 135.40 90.06 REMARK 500 3 ILE A 58 -153.81 -117.97 REMARK 500 3 GLU A 63 -169.40 -168.89 REMARK 500 4 ALA A 7 -128.61 -135.77 REMARK 500 4 PRO A 9 35.14 -74.89 REMARK 500 4 CYS A 12 -160.26 -116.89 REMARK 500 4 TYR A 14 -154.27 -96.62 REMARK 500 4 PRO A 18 98.69 -51.43 REMARK 500 4 SER A 21 -71.48 -39.59 REMARK 500 4 HIS A 36 -157.43 -155.86 REMARK 500 4 ALA A 51 54.94 77.02 REMARK 500 4 ILE A 58 -126.65 -139.66 REMARK 500 4 GLU A 61 -166.22 150.31 REMARK 500 4 GLU A 63 -47.44 69.54 REMARK 500 5 ALA A 7 -149.94 -109.59 REMARK 500 5 PRO A 9 29.81 -75.58 REMARK 500 5 GLU A 10 -78.74 -120.35 REMARK 500 5 CYS A 12 -157.09 173.42 REMARK 500 5 CYS A 16 -151.01 -160.45 REMARK 500 5 HIS A 43 -73.88 -117.48 REMARK 500 5 ALA A 51 47.67 77.36 REMARK 500 5 ILE A 58 -156.46 -146.81 REMARK 500 5 GLU A 61 -110.51 64.08 REMARK 500 5 GLU A 63 -71.40 -101.18 REMARK 500 6 ALA A 7 -161.44 -111.16 REMARK 500 REMARK 500 THIS ENTRY HAS 221 RAMACHANDRAN OUTLIERS. 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 GLN A 8 PRO A 9 1 -143.16 REMARK 500 SER A 20 SER A 21 1 -145.30 REMARK 500 GLN A 8 PRO A 9 3 -145.17 REMARK 500 ALA A 51 LEU A 52 3 149.17 REMARK 500 GLN A 8 PRO A 9 5 -141.29 REMARK 500 GLN A 8 PRO A 9 6 -135.21 REMARK 500 GLN A 8 PRO A 9 9 -142.58 REMARK 500 GLY A 19 SER A 20 9 -147.09 REMARK 500 GLN A 8 PRO A 9 10 -135.72 REMARK 500 LYS A 40 VAL A 41 10 149.86 REMARK 500 GLN A 8 PRO A 9 11 -149.60 REMARK 500 GLN A 8 PRO A 9 15 -149.55 REMARK 500 GLN A 8 PRO A 9 21 -141.25 REMARK 500 GLN A 8 PRO A 9 23 -145.44 REMARK 500 GLN A 8 PRO A 9 24 -136.29 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 1 TYR A 5 0.08 SIDE CHAIN REMARK 500 2 TYR A 5 0.07 SIDE CHAIN REMARK 500 6 TYR A 5 0.09 SIDE CHAIN REMARK 500 7 TYR A 5 0.08 SIDE CHAIN REMARK 500 8 TYR A 5 0.11 SIDE CHAIN REMARK 500 10 TYR A 5 0.08 SIDE CHAIN REMARK 500 11 TYR A 5 0.07 SIDE CHAIN REMARK 500 13 TYR A 14 0.08 SIDE CHAIN REMARK 500 14 TYR A 5 0.10 SIDE CHAIN REMARK 500 16 TYR A 5 0.08 SIDE CHAIN REMARK 500 24 TYR A 5 0.07 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NH2 A 68 DBREF 1BMR A 1 67 UNP P56678 SCL3_LEIQH 1 67 SEQRES 1 A 68 VAL ARG ASP GLY TYR ILE ALA GLN PRO GLU ASN CYS VAL SEQRES 2 A 68 TYR HIS CYS PHE PRO GLY SER SER GLY CYS ASP THR LEU SEQRES 3 A 68 CYS LYS GLU LYS GLY GLY THR SER GLY HIS CYS GLY PHE SEQRES 4 A 68 LYS VAL GLY HIS GLY LEU ALA CYS TRP CYS ASN ALA LEU SEQRES 5 A 68 PRO ASP ASN VAL GLY ILE ILE VAL GLU GLY GLU LYS CYS SEQRES 6 A 68 HIS SER NH2 HET NH2 A 68 3 HETNAM NH2 AMINO GROUP FORMUL 1 NH2 H2 N HELIX 1 1 SER A 21 LYS A 30 1 10 SHEET 1 A 3 SER A 34 LYS A 40 0 SHEET 2 A 3 GLY A 44 LEU A 52 -1 N ASN A 50 O SER A 34 SHEET 3 A 3 ARG A 2 ILE A 6 -1 N ILE A 6 O CYS A 47 SSBOND 1 CYS A 12 CYS A 65 1555 1555 2.03 SSBOND 2 CYS A 16 CYS A 37 1555 1555 2.02 SSBOND 3 CYS A 23 CYS A 47 1555 1555 2.01 SSBOND 4 CYS A 27 CYS A 49 1555 1555 2.02 LINK C SER A 67 N NH2 A 68 1555 1555 1.36 SITE 1 AC1 1 SER A 67 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MODEL 1