1C2U - Header Asymmetric Unit

HEADER TOXIN 27-JUL-99 1C2U

TITLE SOLUTION STRUCTURE OF [ABU3,35]SHK12-28,17-32

COMPND MOL_ID: 1; COMPND 2 MOLECULE: SYNTHETIC PEPTIDE ANALOGUE OF SHK TOXIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THE PEPTIDE WAS CHEMICALLY SYNTHESIZED. THE SOURCE 4 SEQUENCE OF THIS PEPTIDE IS NATURALLY FOUND IN SOURCE 5 STICHODACTYLA HELIANTHUS.

KEYWDS SHK TOXIN, POTASSIUM CHANNEL, DISULPHIDE BONDS, ANALOGUES, KEYWDS 2 STRUCTURE-FUNCTION, SOLUTION STRUCTURE, NMR

EXPDTA SOLUTION NMR

NUMMDL 20

AUTHOR M.W.PENNINGTON,M.D.LANIGAN,K.KALMAN,V.M.MANHIR,H.RAUER, AUTHOR 2 C.T.MCVAUGH,D.BEHM,D.DONALDSON,K.G.CHANDY,W.R.KEM,R.S.NORTON

REVDAT 3 24-FEB-09 1C2U 1 VERSN REVDAT 2 01-APR-03 1C2U 1 JRNL REVDAT 1 10-NOV-99 1C2U 0

JRNL AUTH M.W.PENNINGTON,M.D.LANIGAN,K.KALMAN,V.M.MAHNIR, JRNL AUTH 2 H.RAUER,C.T.MCVAUGH,D.BEHM,D.DONALDSON,K.G.CHANDY, JRNL AUTH 3 W.R.KEM,R.S.NORTON JRNL TITL ROLE OF DISULFIDE BONDS IN THE STRUCTURE AND JRNL TITL 2 POTASSIUM CHANNEL BLOCKING ACTIVITY OF SHK TOXIN. JRNL REF BIOCHEMISTRY V. 38 14549 1999 JRNL REFN ISSN 0006-2960 JRNL PMID 10545177 JRNL DOI 10.1021/BI991282M

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 1.3, CHARMM 19 REMARK 3 AUTHORS : BRUNGER (X-PLOR), BROOKS (CHARMM) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE STRUCTURES ARE BASED ON 328 NOE- REMARK 3 DERIVED DISTANCE CONSTRAINTS AND 26 DIHEDRAL ANGLE RESTRAINTS

REMARK 4 REMARK 4 1C2U COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-JUL-99. REMARK 100 THE RCSB ID CODE IS RCSB009409.

REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 293.0 REMARK 210 PH : 5.0 REMARK 210 IONIC STRENGTH : 5.6 MM PEPTIDE REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 5.6 MM [ABU3,35]SHK12-28,17- REMARK 210 32; 90% H2O, 10% D2O (V/V) REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D NOESY, 2D-TOCSY, DQF-COSY REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ, 500 MHZ REMARK 210 SPECTROMETER MODEL : DRX, AMX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : XWINNMR 2.1, XEASY 1.3.7, REMARK 210 DYANA 1.4 REMARK 210 METHOD USED : THE STRUCTURES WERE REFINED REMARK 210 USING DISTANCE GEOMETRY, REMARK 210 SIMULATED ANNEALING AND REMARK 210 MOLECULAR DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: THIS STRUCTURE WAS DETERMINED USING STANDARD 2D REMARK 210 HOMONUCLEAR TECHNIQUES.

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 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 1 HIS A 19 NE2 HIS A 19 CD2 -0.070 REMARK 500 2 HIS A 19 NE2 HIS A 19 CD2 -0.068 REMARK 500 3 HIS A 19 NE2 HIS A 19 CD2 -0.068 REMARK 500 4 HIS A 19 NE2 HIS A 19 CD2 -0.071 REMARK 500 5 HIS A 19 NE2 HIS A 19 CD2 -0.070 REMARK 500 6 HIS A 19 NE2 HIS A 19 CD2 -0.071 REMARK 500 7 HIS A 19 NE2 HIS A 19 CD2 -0.069 REMARK 500 8 HIS A 19 NE2 HIS A 19 CD2 -0.070 REMARK 500 9 HIS A 19 NE2 HIS A 19 CD2 -0.071 REMARK 500 10 HIS A 19 NE2 HIS A 19 CD2 -0.070 REMARK 500 11 HIS A 19 NE2 HIS A 19 CD2 -0.068 REMARK 500 12 HIS A 19 NE2 HIS A 19 CD2 -0.069 REMARK 500 13 HIS A 19 NE2 HIS A 19 CD2 -0.070 REMARK 500 14 HIS A 19 NE2 HIS A 19 CD2 -0.072 REMARK 500 15 HIS A 19 NE2 HIS A 19 CD2 -0.070 REMARK 500 16 HIS A 19 NE2 HIS A 19 CD2 -0.071 REMARK 500 17 HIS A 19 NE2 HIS A 19 CD2 -0.070 REMARK 500 18 HIS A 19 NE2 HIS A 19 CD2 -0.070 REMARK 500 19 HIS A 19 NE2 HIS A 19 CD2 -0.069 REMARK 500 20 HIS A 19 NE2 HIS A 19 CD2 -0.073 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 ARG A 11 NE - CZ - NH1 ANGL. DEV. = -4.0 DEGREES REMARK 500 1 ARG A 24 NE - CZ - NH2 ANGL. DEV. = -3.6 DEGREES REMARK 500 1 ARG A 29 NH1 - CZ - NH2 ANGL. DEV. = 8.2 DEGREES REMARK 500 1 ARG A 29 NE - CZ - NH1 ANGL. DEV. = -4.3 DEGREES REMARK 500 1 ARG A 29 NE - CZ - NH2 ANGL. DEV. = -3.9 DEGREES REMARK 500 2 ARG A 24 NE - CZ - NH1 ANGL. DEV. = -4.8 DEGREES REMARK 500 2 CYS A 32 CA - CB - SG ANGL. DEV. = 7.3 DEGREES REMARK 500 3 ARG A 29 NE - CZ - NH1 ANGL. DEV. = -4.0 DEGREES REMARK 500 4 ARG A 11 NE - CZ - NH2 ANGL. DEV. = -4.5 DEGREES REMARK 500 4 ARG A 24 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 5 ARG A 1 NE - CZ - NH2 ANGL. DEV. = -3.8 DEGREES REMARK 500 5 ARG A 24 NH1 - CZ - NH2 ANGL. DEV. = 7.2 DEGREES REMARK 500 5 ARG A 24 NE - CZ - NH2 ANGL. DEV. = -4.6 DEGREES REMARK 500 5 CYS A 28 CA - CB - SG ANGL. DEV. = 7.1 DEGREES REMARK 500 6 ARG A 29 NE - CZ - NH1 ANGL. DEV. = -3.7 DEGREES REMARK 500 7 ARG A 11 NE - CZ - NH1 ANGL. DEV. = -3.3 DEGREES REMARK 500 7 ARG A 24 NE - CZ - NH1 ANGL. DEV. = -3.7 DEGREES REMARK 500 7 CYS A 28 CA - CB - SG ANGL. DEV. = 8.0 DEGREES REMARK 500 7 ARG A 29 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 8 CYS A 28 CA - CB - SG ANGL. DEV. = 7.5 DEGREES REMARK 500 8 ARG A 29 NE - CZ - NH1 ANGL. DEV. = -4.6 DEGREES REMARK 500 9 ARG A 1 NE - CZ - NH2 ANGL. DEV. = -3.3 DEGREES REMARK 500 9 ARG A 11 NE - CZ - NH2 ANGL. DEV. = -3.3 DEGREES REMARK 500 9 ARG A 24 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 10 ARG A 24 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 10 ARG A 29 NE - CZ - NH1 ANGL. DEV. = -3.5 DEGREES REMARK 500 11 ARG A 1 NE - CZ - NH1 ANGL. DEV. = -3.0 DEGREES REMARK 500 11 ARG A 11 NE - CZ - NH1 ANGL. DEV. = -3.1 DEGREES REMARK 500 11 CYS A 28 CA - CB - SG ANGL. DEV. = 10.6 DEGREES REMARK 500 11 ARG A 29 NE - CZ - NH1 ANGL. DEV. = -3.6 DEGREES REMARK 500 12 ARG A 11 NE - CZ - NH1 ANGL. DEV. = -3.8 DEGREES REMARK 500 12 ARG A 24 NE - CZ - NH1 ANGL. DEV. = -3.8 DEGREES REMARK 500 12 ARG A 29 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 13 ARG A 1 NE - CZ - NH1 ANGL. DEV. = -3.2 DEGREES REMARK 500 13 ARG A 11 NE - CZ - NH2 ANGL. DEV. = -3.0 DEGREES REMARK 500 13 CYS A 28 CA - CB - SG ANGL. DEV. = 6.7 DEGREES REMARK 500 13 ARG A 29 NH1 - CZ - NH2 ANGL. DEV. = 7.3 DEGREES REMARK 500 13 ARG A 29 NE - CZ - NH1 ANGL. DEV. = -3.1 DEGREES REMARK 500 13 ARG A 29 NE - CZ - NH2 ANGL. DEV. = -4.1 DEGREES REMARK 500 14 ARG A 11 NE - CZ - NH1 ANGL. DEV. = -3.8 DEGREES REMARK 500 14 CYS A 28 CA - CB - SG ANGL. DEV. = 8.6 DEGREES REMARK 500 14 ARG A 29 NE - CZ - NH1 ANGL. DEV. = -4.4 DEGREES REMARK 500 15 ARG A 24 NH1 - CZ - NH2 ANGL. DEV. = 7.1 DEGREES REMARK 500 15 ARG A 24 NE - CZ - NH1 ANGL. DEV. = -4.7 DEGREES REMARK 500 15 CYS A 28 CA - CB - SG ANGL. DEV. = 11.3 DEGREES REMARK 500 15 ARG A 29 NE - CZ - NH2 ANGL. DEV. = -3.4 DEGREES REMARK 500 16 ARG A 24 NE - CZ - NH1 ANGL. DEV. = -3.3 DEGREES REMARK 500 16 CYS A 28 CA - CB - SG ANGL. DEV. = 9.6 DEGREES REMARK 500 16 ARG A 29 NE - CZ - NH2 ANGL. DEV. = -3.1 DEGREES REMARK 500 17 ARG A 11 NE - CZ - NH1 ANGL. DEV. = -3.9 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 65 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 ASP A 5 -126.03 -146.29 REMARK 500 1 THR A 6 -24.84 -33.41 REMARK 500 1 PRO A 8 66.54 -40.34 REMARK 500 1 LYS A 9 66.02 -18.80 REMARK 500 1 SER A 10 -101.67 -144.14 REMARK 500 1 GLN A 16 -66.97 -151.50 REMARK 500 1 CYS A 17 -44.56 -29.57 REMARK 500 1 LYS A 18 71.22 -172.21 REMARK 500 1 HIS A 19 -84.44 -29.56 REMARK 500 1 ALA A 21 -12.47 179.72 REMARK 500 1 LEU A 25 -79.06 -90.78 REMARK 500 1 SER A 26 -43.81 178.71 REMARK 500 1 PHE A 27 -64.50 -159.77 REMARK 500 1 ARG A 29 -89.62 -176.55 REMARK 500 2 PRO A 8 83.58 -57.48 REMARK 500 2 SER A 10 -123.10 -121.39 REMARK 500 2 GLN A 16 -52.03 -158.30 REMARK 500 2 CYS A 17 -55.74 -29.86 REMARK 500 2 LYS A 18 77.87 -168.61 REMARK 500 2 HIS A 19 -87.84 -29.92 REMARK 500 2 SER A 20 77.00 -68.24 REMARK 500 2 ALA A 21 -12.80 179.80 REMARK 500 2 LEU A 25 -74.07 -91.50 REMARK 500 2 SER A 26 -50.85 178.01 REMARK 500 2 PHE A 27 -63.28 -161.08 REMARK 500 2 ARG A 29 -56.40 -166.91 REMARK 500 2 LYS A 30 -79.22 -66.25 REMARK 500 3 ASP A 5 -105.58 -120.19 REMARK 500 3 THR A 6 1.25 -56.76 REMARK 500 3 LYS A 9 73.02 -68.55 REMARK 500 3 SER A 10 -109.52 -147.79 REMARK 500 3 GLN A 16 -60.28 -157.34 REMARK 500 3 LYS A 18 75.21 -174.05 REMARK 500 3 HIS A 19 -94.21 -28.80 REMARK 500 3 SER A 20 34.71 -69.17 REMARK 500 3 SER A 26 -67.56 177.85 REMARK 500 3 PHE A 27 -52.11 -157.09 REMARK 500 3 ARG A 29 -88.54 -167.75 REMARK 500 4 THR A 6 -121.78 -100.80 REMARK 500 4 SER A 10 -107.87 -119.88 REMARK 500 4 GLN A 16 -60.81 -154.92 REMARK 500 4 LYS A 18 71.06 -165.87 REMARK 500 4 HIS A 19 -79.46 -29.76 REMARK 500 4 ALA A 21 -10.81 179.48 REMARK 500 4 LEU A 25 -72.19 -90.54 REMARK 500 4 SER A 26 -50.89 179.58 REMARK 500 4 PHE A 27 -58.64 -162.61 REMARK 500 4 ARG A 29 -89.40 -177.83 REMARK 500 5 ASP A 5 -87.08 -147.16 REMARK 500 5 THR A 6 -103.08 -18.01 REMARK 500 5 LYS A 9 30.63 -71.04 REMARK 500 5 SER A 10 -110.54 179.97 REMARK 500 5 GLN A 16 -61.34 -152.59 REMARK 500 5 CYS A 17 -52.21 -29.97 REMARK 500 5 LYS A 18 79.31 -168.90 REMARK 500 5 HIS A 19 -78.63 -29.93 REMARK 500 5 SER A 20 40.42 -69.17 REMARK 500 5 LEU A 25 -66.65 -91.77 REMARK 500 5 SER A 26 -51.91 179.75 REMARK 500 5 PHE A 27 -66.12 -160.33 REMARK 500 5 ARG A 29 -88.20 179.03 REMARK 500 6 THR A 6 -153.42 -95.77 REMARK 500 6 LYS A 9 47.42 -100.67 REMARK 500 6 SER A 10 -111.60 -104.47 REMARK 500 6 GLN A 16 -62.85 -150.74 REMARK 500 6 LYS A 18 68.57 -163.88 REMARK 500 6 HIS A 19 -85.16 -28.38 REMARK 500 6 SER A 20 46.65 -74.39 REMARK 500 6 ALA A 21 -0.32 -158.48 REMARK 500 6 SER A 26 -49.83 178.98 REMARK 500 6 PHE A 27 -50.47 -167.27 REMARK 500 6 ARG A 29 -84.99 -170.11 REMARK 500 7 SER A 10 -102.56 -144.76 REMARK 500 7 GLN A 16 -59.85 -155.28 REMARK 500 7 LYS A 18 72.06 -162.50 REMARK 500 7 HIS A 19 -75.17 -28.51 REMARK 500 7 SER A 20 44.16 -75.35 REMARK 500 7 LEU A 25 -99.80 -98.04 REMARK 500 7 SER A 26 -47.54 -139.82 REMARK 500 7 PHE A 27 -61.86 -152.81 REMARK 500 7 ARG A 29 -86.85 -151.77 REMARK 500 8 ASP A 5 -92.84 -132.74 REMARK 500 8 THR A 6 -96.90 -18.96 REMARK 500 8 SER A 10 -110.42 -153.08 REMARK 500 8 GLN A 16 -52.87 -157.79 REMARK 500 8 CYS A 17 -49.69 -29.30 REMARK 500 8 LYS A 18 82.59 -178.33 REMARK 500 8 HIS A 19 -84.80 -32.00 REMARK 500 8 SER A 20 30.11 -61.95 REMARK 500 8 LEU A 25 -71.79 -90.60 REMARK 500 8 SER A 26 -47.95 178.63 REMARK 500 8 PHE A 27 -65.66 -158.94 REMARK 500 8 ARG A 29 -34.71 179.71 REMARK 500 8 CYS A 32 -67.03 -98.16 REMARK 500 9 ASP A 5 -89.60 -120.24 REMARK 500 9 THR A 6 177.58 -46.86 REMARK 500 9 SER A 10 -100.27 -174.76 REMARK 500 9 GLN A 16 -60.05 -152.14 REMARK 500 9 LYS A 18 74.34 -173.89 REMARK 500 9 HIS A 19 -80.55 -29.45 REMARK 500 9 SER A 20 41.29 -68.35 REMARK 500 9 LEU A 25 -65.49 -94.90 REMARK 500 9 SER A 26 -55.52 178.73 REMARK 500 9 PHE A 27 -63.22 -157.18 REMARK 500 9 ARG A 29 -92.51 177.59 REMARK 500 10 ASP A 5 -98.19 -118.05 REMARK 500 10 THR A 6 -102.91 -18.40 REMARK 500 10 ILE A 7 26.19 -145.10 REMARK 500 10 SER A 10 -138.23 -156.03 REMARK 500 10 GLN A 16 -61.10 -152.37 REMARK 500 10 CYS A 17 -54.39 -29.40 REMARK 500 10 LYS A 18 75.09 -167.21 REMARK 500 10 HIS A 19 -79.66 -29.19 REMARK 500 10 SER A 20 36.70 -66.21 REMARK 500 10 SER A 26 -53.24 178.38 REMARK 500 10 PHE A 27 -62.37 -161.00 REMARK 500 10 ARG A 29 -50.08 -164.75 REMARK 500 10 LYS A 30 -83.54 -66.10 REMARK 500 10 THR A 31 -9.43 -59.25 REMARK 500 11 ASP A 5 -100.59 -118.28 REMARK 500 11 PRO A 8 80.27 -56.31 REMARK 500 11 LYS A 9 67.14 -30.45 REMARK 500 11 SER A 10 -88.74 -147.21 REMARK 500 11 GLN A 16 -61.00 -156.58 REMARK 500 11 LYS A 18 70.47 -170.30 REMARK 500 11 HIS A 19 -92.23 -28.61 REMARK 500 11 ALA A 21 -9.52 -156.36 REMARK 500 11 LEU A 25 -77.81 -93.19 REMARK 500 11 SER A 26 -44.72 178.99 REMARK 500 11 PHE A 27 -59.45 -163.43 REMARK 500 11 ARG A 29 -87.41 -139.33 REMARK 500 11 LYS A 30 -69.81 -29.52 REMARK 500 12 ASP A 5 -94.88 -162.80 REMARK 500 12 THR A 6 -96.16 -19.17 REMARK 500 12 LYS A 9 35.85 -62.25 REMARK 500 12 SER A 10 -93.26 -173.26 REMARK 500 12 ARG A 11 36.83 -145.11 REMARK 500 12 GLN A 16 -60.32 -151.67 REMARK 500 12 CYS A 17 -50.67 -29.77 REMARK 500 12 LYS A 18 76.73 -172.55 REMARK 500 12 HIS A 19 -81.33 -29.73 REMARK 500 12 ALA A 21 -7.03 -169.31 REMARK 500 12 TYR A 23 -4.16 -59.85 REMARK 500 12 LEU A 25 -65.18 -92.06 REMARK 500 12 SER A 26 -59.13 177.66 REMARK 500 12 PHE A 27 -64.37 -157.15 REMARK 500 12 ARG A 29 -89.35 -178.17 REMARK 500 13 LYS A 9 55.42 -68.13 REMARK 500 13 SER A 10 -118.69 -127.30 REMARK 500 13 GLN A 16 -62.00 -156.28 REMARK 500 13 CYS A 17 -44.44 -29.79 REMARK 500 13 LYS A 18 72.88 -179.19 REMARK 500 13 HIS A 19 -81.95 -29.13 REMARK 500 13 ALA A 21 -11.38 -167.89 REMARK 500 13 LEU A 25 -71.25 -80.09 REMARK 500 13 SER A 26 -52.01 177.98 REMARK 500 13 PHE A 27 -50.89 -155.06 REMARK 500 13 ARG A 29 -31.19 -162.85 REMARK 500 14 THR A 6 -142.76 -101.08 REMARK 500 14 PRO A 8 82.62 -68.42 REMARK 500 14 SER A 10 -99.67 -127.90 REMARK 500 14 GLN A 16 -56.63 -156.91 REMARK 500 14 LYS A 18 74.26 -168.04 REMARK 500 14 HIS A 19 -79.01 -29.66 REMARK 500 14 SER A 20 27.68 -62.86 REMARK 500 14 LEU A 25 -88.02 -94.22 REMARK 500 14 SER A 26 -46.42 -161.49 REMARK 500 14 PHE A 27 -58.14 -162.78 REMARK 500 14 ARG A 29 -49.63 -161.13 REMARK 500 14 LYS A 30 -79.07 -70.17 REMARK 500 14 THR A 31 -9.86 -59.49 REMARK 500 15 ASP A 5 35.02 -85.57 REMARK 500 15 PRO A 8 88.84 -60.05 REMARK 500 15 LYS A 9 71.04 -68.00 REMARK 500 15 SER A 10 -113.91 -140.21 REMARK 500 15 GLN A 16 -62.03 -164.80 REMARK 500 15 LYS A 18 62.29 -161.57 REMARK 500 15 HIS A 19 -84.02 -29.56 REMARK 500 15 ALA A 21 -10.00 179.43 REMARK 500 15 LEU A 25 -62.58 -91.75 REMARK 500 15 SER A 26 -55.03 178.55 REMARK 500 15 PHE A 27 -60.19 -152.56 REMARK 500 15 ARG A 29 -22.53 -176.93 REMARK 500 16 ASP A 5 -92.20 -142.77 REMARK 500 16 THR A 6 -93.80 -19.41 REMARK 500 16 LYS A 9 24.38 -78.62 REMARK 500 16 SER A 10 -111.03 179.21 REMARK 500 16 GLN A 16 -58.02 -151.96 REMARK 500 16 LYS A 18 69.45 -169.74 REMARK 500 16 HIS A 19 -67.75 -29.73 REMARK 500 16 ALA A 21 -4.39 179.28 REMARK 500 16 TYR A 23 0.83 -61.67 REMARK 500 16 SER A 26 -58.92 177.60 REMARK 500 16 PHE A 27 -64.13 -157.64 REMARK 500 16 ARG A 29 -73.33 -149.46 REMARK 500 17 ASP A 5 -86.14 -139.54 REMARK 500 17 THR A 6 -113.10 -18.52 REMARK 500 17 LYS A 9 32.00 -69.30 REMARK 500 17 SER A 10 -109.20 179.69 REMARK 500 17 GLN A 16 -62.26 -152.37 REMARK 500 17 CYS A 17 -48.89 -29.67 REMARK 500 17 LYS A 18 72.00 -174.07 REMARK 500 17 HIS A 19 -77.46 -28.99 REMARK 500 17 SER A 20 49.50 -75.98 REMARK 500 17 ALA A 21 -3.36 -149.29 REMARK 500 17 LEU A 25 -62.05 -96.10 REMARK 500 17 SER A 26 -54.31 178.77 REMARK 500 17 PHE A 27 -61.77 -163.24 REMARK 500 17 ARG A 29 -60.09 -178.14 REMARK 500 17 LYS A 30 -74.76 -70.56 REMARK 500 18 ASP A 5 -76.23 46.82 REMARK 500 18 THR A 6 -80.04 -101.37 REMARK 500 18 SER A 10 -136.84 -125.60 REMARK 500 18 GLN A 16 -62.90 -153.01 REMARK 500 18 CYS A 17 -57.99 -29.09 REMARK 500 18 LYS A 18 73.53 -165.93 REMARK 500 18 HIS A 19 -79.03 -28.75 REMARK 500 18 SER A 20 49.91 -72.97 REMARK 500 18 ALA A 21 -1.51 -149.94 REMARK 500 18 LEU A 25 -69.21 -91.92 REMARK 500 18 SER A 26 -49.04 178.92 REMARK 500 18 PHE A 27 -84.17 -167.03 REMARK 500 18 ARG A 29 -90.85 -171.52 REMARK 500 18 CYS A 32 -84.77 -102.33 REMARK 500 19 ASP A 5 -82.72 56.81 REMARK 500 19 ILE A 7 -54.32 -131.74 REMARK 500 19 LYS A 9 65.92 -30.56 REMARK 500 19 SER A 10 -97.09 -143.52 REMARK 500 19 GLN A 16 -62.07 -153.74 REMARK 500 19 LYS A 18 72.11 179.90 REMARK 500 19 HIS A 19 -91.67 -28.03 REMARK 500 19 SER A 20 41.19 -70.81 REMARK 500 19 ALA A 21 -1.52 -142.42 REMARK 500 19 LEU A 25 -79.21 -94.05 REMARK 500 19 SER A 26 -51.44 -170.02 REMARK 500 19 PHE A 27 -71.37 -155.43 REMARK 500 19 ARG A 29 -55.47 -151.84 REMARK 500 19 LYS A 30 -81.95 -66.09 REMARK 500 20 ASP A 5 -76.84 55.44 REMARK 500 20 THR A 6 -106.47 -101.55 REMARK 500 20 ILE A 7 47.16 -140.49 REMARK 500 20 SER A 10 -106.42 -141.51 REMARK 500 20 ARG A 11 75.24 -154.36 REMARK 500 20 GLN A 16 -59.33 -152.31 REMARK 500 20 LYS A 18 71.63 -169.32 REMARK 500 20 HIS A 19 -60.59 -28.76 REMARK 500 20 SER A 26 -62.35 178.57 REMARK 500 20 PHE A 27 -65.01 -150.95 REMARK 500 20 ARG A 29 -86.89 -167.76 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 ARG A 1 0.30 SIDE_CHAIN REMARK 500 1 ARG A 11 0.28 SIDE_CHAIN REMARK 500 1 ARG A 24 0.32 SIDE_CHAIN REMARK 500 1 ARG A 29 0.27 SIDE_CHAIN REMARK 500 2 ARG A 1 0.32 SIDE_CHAIN REMARK 500 2 ARG A 24 0.32 SIDE_CHAIN REMARK 500 2 ARG A 29 0.29 SIDE_CHAIN REMARK 500 3 ARG A 1 0.32 SIDE_CHAIN REMARK 500 3 ARG A 11 0.32 SIDE_CHAIN REMARK 500 3 ARG A 24 0.32 SIDE_CHAIN REMARK 500 3 ARG A 29 0.31 SIDE_CHAIN REMARK 500 4 ARG A 1 0.27 SIDE_CHAIN REMARK 500 4 ARG A 11 0.32 SIDE_CHAIN REMARK 500 4 ARG A 24 0.30 SIDE_CHAIN REMARK 500 4 ARG A 29 0.24 SIDE_CHAIN REMARK 500 5 ARG A 1 0.32 SIDE_CHAIN REMARK 500 5 ARG A 11 0.31 SIDE_CHAIN REMARK 500 5 ARG A 24 0.32 SIDE_CHAIN REMARK 500 5 ARG A 29 0.31 SIDE_CHAIN REMARK 500 6 ARG A 1 0.32 SIDE_CHAIN REMARK 500 6 ARG A 11 0.30 SIDE_CHAIN REMARK 500 6 ARG A 24 0.19 SIDE_CHAIN REMARK 500 6 ARG A 29 0.27 SIDE_CHAIN REMARK 500 7 ARG A 1 0.32 SIDE_CHAIN REMARK 500 7 ARG A 11 0.31 SIDE_CHAIN REMARK 500 7 ARG A 24 0.32 SIDE_CHAIN REMARK 500 7 ARG A 29 0.32 SIDE_CHAIN REMARK 500 8 ARG A 1 0.28 SIDE_CHAIN REMARK 500 8 ARG A 11 0.30 SIDE_CHAIN REMARK 500 8 ARG A 24 0.18 SIDE_CHAIN REMARK 500 8 ARG A 29 0.32 SIDE_CHAIN REMARK 500 9 ARG A 1 0.33 SIDE_CHAIN REMARK 500 9 ARG A 11 0.31 SIDE_CHAIN REMARK 500 9 ARG A 24 0.28 SIDE_CHAIN REMARK 500 9 ARG A 29 0.25 SIDE_CHAIN REMARK 500 10 ARG A 1 0.32 SIDE_CHAIN REMARK 500 10 ARG A 11 0.29 SIDE_CHAIN REMARK 500 10 ARG A 24 0.30 SIDE_CHAIN REMARK 500 10 ARG A 29 0.30 SIDE_CHAIN REMARK 500 11 ARG A 1 0.32 SIDE_CHAIN REMARK 500 11 ARG A 11 0.31 SIDE_CHAIN REMARK 500 11 ARG A 24 0.12 SIDE_CHAIN REMARK 500 11 ARG A 29 0.31 SIDE_CHAIN REMARK 500 12 ARG A 1 0.32 SIDE_CHAIN REMARK 500 12 ARG A 11 0.32 SIDE_CHAIN REMARK 500 12 ARG A 24 0.32 SIDE_CHAIN REMARK 500 12 ARG A 29 0.32 SIDE_CHAIN REMARK 500 13 ARG A 1 0.32 SIDE_CHAIN REMARK 500 13 ARG A 11 0.32 SIDE_CHAIN REMARK 500 13 ARG A 29 0.32 SIDE_CHAIN REMARK 500 14 ARG A 1 0.23 SIDE_CHAIN REMARK 500 14 ARG A 11 0.31 SIDE_CHAIN REMARK 500 14 ARG A 24 0.31 SIDE_CHAIN REMARK 500 14 ARG A 29 0.21 SIDE_CHAIN REMARK 500 15 ARG A 1 0.32 SIDE_CHAIN REMARK 500 15 ARG A 11 0.30 SIDE_CHAIN REMARK 500 15 ARG A 24 0.30 SIDE_CHAIN REMARK 500 15 ARG A 29 0.31 SIDE_CHAIN REMARK 500 16 ARG A 1 0.31 SIDE_CHAIN REMARK 500 16 ARG A 11 0.30 SIDE_CHAIN REMARK 500 16 ARG A 24 0.32 SIDE_CHAIN REMARK 500 16 ARG A 29 0.32 SIDE_CHAIN REMARK 500 17 ARG A 1 0.31 SIDE_CHAIN REMARK 500 17 ARG A 11 0.30 SIDE_CHAIN REMARK 500 17 ARG A 24 0.32 SIDE_CHAIN REMARK 500 17 ARG A 29 0.32 SIDE_CHAIN REMARK 500 18 ARG A 1 0.31 SIDE_CHAIN REMARK 500 18 ARG A 11 0.32 SIDE_CHAIN REMARK 500 18 ARG A 24 0.31 SIDE_CHAIN REMARK 500 18 ARG A 29 0.10 SIDE_CHAIN REMARK 500 19 ARG A 1 0.24 SIDE_CHAIN REMARK 500 19 ARG A 11 0.29 SIDE_CHAIN REMARK 500 19 ARG A 24 0.32 SIDE_CHAIN REMARK 500 19 ARG A 29 0.32 SIDE_CHAIN REMARK 500 20 ARG A 1 0.31 SIDE_CHAIN REMARK 500 20 ARG A 11 0.31 SIDE_CHAIN REMARK 500 20 ARG A 24 0.30 SIDE_CHAIN REMARK 500 20 ARG A 29 0.27 SIDE_CHAIN REMARK 500 REMARK 500 REMARK: NULL

DBREF 1C2U A 1 35 UNP P29187 TXSHK_STOHE 1 35

SEQADV 1C2U ABA A 3 UNP P29187 CYS 3 ENGINEERED SEQADV 1C2U ALA A 21 UNP P29187 MET 21 ENGINEERED SEQADV 1C2U ABA A 35 UNP P29187 CYS 35 ENGINEERED

SEQRES 1 A 35 ARG SER ABA ILE ASP THR ILE PRO LYS SER ARG CYS THR SEQRES 2 A 35 ALA PHE GLN CYS LYS HIS SER ALA LYS TYR ARG LEU SER SEQRES 3 A 35 PHE CYS ARG LYS THR CYS GLY THR ABA

MODRES 1C2U ABA A 3 ALA ALPHA-AMINOBUTYRIC ACID MODRES 1C2U ABA A 35 ALA ALPHA-AMINOBUTYRIC ACID

HET ABA A 3 13 HET ABA A 35 14

HETNAM ABA ALPHA-AMINOBUTYRIC ACID

FORMUL 1 ABA 2(C4 H9 N O2)

SSBOND 1 CYS A 12 CYS A 28 1555 1555 2.03 SSBOND 2 CYS A 17 CYS A 32 1555 1555 2.01

LINK C SER A 2 N ABA A 3 1555 1555 1.31 LINK C ABA A 3 N ILE A 4 1555 1555 1.31 LINK C THR A 34 N ABA A 35 1555 1555 1.31

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