10 20 30 40 50 60 70 80 1XGC - Header ----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----| Asymmetric UnitHEADER NEUROTOXIN 18-JAN-98 1XGC
TITLE ALPHA CONOTOXIN GI: 2-3;7-13 DISULFIDE BOND ISOMER, NMR, 25 TITLE 2 STRUCTURES
COMPND MOL_ID: 1; COMPND 2 MOLECULE: ALPHA-CONOTOXIN GI; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 OTHER_DETAILS: AMIDATED C-TERMINUS
SOURCE MOL_ID: 1
KEYWDS NEUROTOXIN, ALPHA-CONOTOXIN, NICOTINIC ACETYLCHOLINE KEYWDS 2 RECEPTO DISULFIDE BOND ISOMERS
EXPDTA SOLUTION NMR
NUMMDL 25
AUTHOR J.GEHRMANN,P.F.ALEWOOD,D.J.CRAIK
REVDAT 3 24-FEB-09 1XGC 1 VERSN REVDAT 2 23-MAR-99 1XGC 1 COMPND REMARK TITLE HEADER REVDAT 2 2 1 SOURCE JRNL KEYWDS REVDAT 1 02-FEB-99 1XGC 0
JRNL AUTH J.GEHRMANN,P.F.ALEWOOD,D.J.CRAIK JRNL TITL STRUCTURE DETERMINATION OF THE THREE DISULFIDE JRNL TITL 2 BOND ISOMERS OF ALPHA-CONOTOXIN GI: A MODEL FOR JRNL TITL 3 THE ROLE OF DISULFIDE BONDS IN STRUCTURAL JRNL TITL 4 STABILITY. JRNL REF J.MOL.BIOL. V. 278 401 1998 JRNL REFN ISSN 0022-2836 JRNL PMID 9571060 JRNL DOI 10.1006/JMBI.1998.1701
REMARK 1
REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.
REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL
REMARK 4 REMARK 4 1XGC COMPLIES WITH FORMAT V. 3.15, 01-DEC-08
REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.
REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 278 REMARK 210 PH : 3.5 REMARK 210 IONIC STRENGTH : 0 REMARK 210 PRESSURE : 1 ATMOSPHERE ATM REMARK 210 SAMPLE CONTENTS : 30%CD3OH, 60%H2O, 10%D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : TOCSY, NOESY, DQF-COSY, HMQC REMARK 210 SPECTROMETER FIELD STRENGTH : 750 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE750 REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : X-PLOR 3.1 REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 25 REMARK 210 CONFORMERS, SELECTION CRITERIA : 50 LOWEST ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL REMARK 210 REMARK 210 REMARK: THE STRUCTURE WAS DETERMINED USING 300MS NOESY REMARK 210 EXPERIMENTS ON A 5MM SAMPLE OF GI(2-3;7-13).
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 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 13 CYS A 2 CA - CB - SG ANGL. DEV. = 7.5 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 1 CYS A 2 -52.06 -157.29 REMARK 500 1 ALA A 6 53.80 -151.81 REMARK 500 1 ARG A 9 82.07 58.65 REMARK 500 1 HIS A 10 -52.94 -160.93 REMARK 500 1 TYR A 11 -85.46 -163.27 REMARK 500 1 SER A 12 101.71 167.30 REMARK 500 2 CYS A 2 -48.98 178.59 REMARK 500 2 CYS A 3 -50.13 -121.38 REMARK 500 2 ASN A 4 67.72 -115.55 REMARK 500 2 ALA A 6 41.19 -165.12 REMARK 500 2 CYS A 7 22.51 -162.02 REMARK 500 2 HIS A 10 -67.98 -147.08 REMARK 500 2 SER A 12 82.21 61.15 REMARK 500 3 CYS A 2 -54.13 -159.07 REMARK 500 3 ASN A 4 67.59 -117.94 REMARK 500 3 ALA A 6 39.69 -167.51 REMARK 500 3 CYS A 7 25.63 -162.99 REMARK 500 3 HIS A 10 -69.64 -135.59 REMARK 500 3 SER A 12 78.47 56.69 REMARK 500 4 CYS A 2 -68.23 -176.11 REMARK 500 4 CYS A 3 -24.84 -144.64 REMARK 500 4 ASN A 4 52.72 -119.73 REMARK 500 4 ALA A 6 26.93 174.50 REMARK 500 4 ARG A 9 7.85 -178.94 REMARK 500 4 TYR A 11 -66.49 -167.81 REMARK 500 4 SER A 12 96.46 161.09 REMARK 500 5 CYS A 2 -71.94 -177.45 REMARK 500 5 ALA A 6 38.73 -166.10 REMARK 500 5 CYS A 7 24.09 -158.29 REMARK 500 5 HIS A 10 -46.11 -146.51 REMARK 500 5 SER A 12 80.93 48.98 REMARK 500 6 CYS A 2 -53.88 -159.06 REMARK 500 6 PRO A 5 -75.90 -81.54 REMARK 500 6 ALA A 6 33.10 -97.15 REMARK 500 6 CYS A 7 66.62 -158.35 REMARK 500 6 HIS A 10 -80.49 -140.68 REMARK 500 6 SER A 12 99.88 61.55 REMARK 500 7 CYS A 2 -71.29 -116.81 REMARK 500 7 CYS A 3 -21.30 -141.63 REMARK 500 7 ASN A 4 74.36 -119.53 REMARK 500 7 ALA A 6 48.56 -166.62 REMARK 500 7 ARG A 9 79.45 59.12 REMARK 500 7 HIS A 10 -51.52 -159.38 REMARK 500 7 TYR A 11 -86.41 -163.20 REMARK 500 7 SER A 12 97.53 171.23 REMARK 500 8 CYS A 2 -53.98 -158.86 REMARK 500 8 ALA A 6 37.95 -167.93 REMARK 500 8 CYS A 7 23.73 -158.65 REMARK 500 8 TYR A 11 -73.56 -170.00 REMARK 500 8 SER A 12 80.16 173.34 REMARK 500 9 ALA A 6 50.44 -153.56 REMARK 500 9 ARG A 9 -1.93 66.47 REMARK 500 9 TYR A 11 -81.36 -165.35 REMARK 500 9 SER A 12 104.06 169.54 REMARK 500 10 CYS A 2 -51.78 -173.23 REMARK 500 10 ASN A 4 66.72 -118.35 REMARK 500 10 ALA A 6 39.87 -163.47 REMARK 500 10 CYS A 7 26.43 -162.05 REMARK 500 10 HIS A 10 -69.68 -142.14 REMARK 500 10 SER A 12 82.45 54.72 REMARK 500 11 CYS A 2 -51.74 -169.18 REMARK 500 11 ALA A 6 33.57 -146.37 REMARK 500 11 ARG A 9 -98.81 -144.11 REMARK 500 11 HIS A 10 -31.14 -148.91 REMARK 500 11 TYR A 11 -30.42 -39.61 REMARK 500 12 CYS A 2 -49.42 -167.19 REMARK 500 12 ARG A 9 102.09 53.41 REMARK 500 12 HIS A 10 -68.07 -143.85 REMARK 500 12 TYR A 11 -63.89 -167.17 REMARK 500 13 CYS A 2 -54.55 -178.67 REMARK 500 13 ARG A 9 110.82 58.95 REMARK 500 13 HIS A 10 -57.66 -145.93 REMARK 500 13 TYR A 11 -39.26 -178.53 REMARK 500 13 SER A 12 104.08 -170.41 REMARK 500 14 CYS A 2 -53.82 -127.05 REMARK 500 14 ALA A 6 40.39 -165.64 REMARK 500 14 CYS A 7 21.68 -156.06 REMARK 500 14 TYR A 11 -78.97 -168.60 REMARK 500 14 SER A 12 106.66 160.07 REMARK 500 15 PRO A 5 -82.16 -76.64 REMARK 500 15 ALA A 6 27.94 44.81 REMARK 500 15 CYS A 7 57.97 -161.72 REMARK 500 15 HIS A 10 -65.21 -156.34 REMARK 500 15 SER A 12 83.46 57.47 REMARK 500 16 CYS A 2 -52.15 -154.08 REMARK 500 16 ASN A 4 51.01 -118.82 REMARK 500 16 PRO A 5 -85.40 -86.94 REMARK 500 16 ALA A 6 28.07 46.81 REMARK 500 16 CYS A 7 56.55 -159.29 REMARK 500 16 HIS A 10 -74.12 -149.42 REMARK 500 16 SER A 12 73.30 67.64 REMARK 500 17 CYS A 2 -53.18 -162.03 REMARK 500 17 PRO A 5 -71.20 -87.81 REMARK 500 17 HIS A 10 -66.68 -144.16 REMARK 500 17 SER A 12 95.01 56.17 REMARK 500 18 CYS A 2 -47.54 -176.80 REMARK 500 18 ALA A 6 19.64 114.01 REMARK 500 18 CYS A 7 44.19 23.46 REMARK 500 18 ARG A 9 -57.54 -133.94 REMARK 500 18 HIS A 10 -21.88 -149.69 REMARK 500 18 TYR A 11 -40.77 -28.73 REMARK 500 18 SER A 12 87.04 48.44 REMARK 500 19 CYS A 2 -53.03 -161.41 REMARK 500 19 HIS A 10 -90.53 -129.70 REMARK 500 19 SER A 12 114.91 77.53 REMARK 500 20 CYS A 2 -54.75 -158.74 REMARK 500 20 ASN A 4 69.90 -117.44 REMARK 500 20 ALA A 6 40.76 -164.98 REMARK 500 20 ARG A 9 79.72 59.20 REMARK 500 20 HIS A 10 -51.33 -158.80 REMARK 500 20 TYR A 11 -85.04 -163.26 REMARK 500 20 SER A 12 101.34 166.57 REMARK 500 21 CYS A 2 -52.04 -169.62 REMARK 500 21 PRO A 5 -74.71 -74.36 REMARK 500 21 CYS A 7 78.81 -168.19 REMARK 500 21 ARG A 9 -75.71 -151.70 REMARK 500 21 HIS A 10 -81.05 -80.47 REMARK 500 21 SER A 12 85.09 55.28 REMARK 500 22 CYS A 2 -51.79 -152.11 REMARK 500 22 ASN A 4 54.71 -118.29 REMARK 500 22 ALA A 6 34.05 -159.22 REMARK 500 22 ARG A 9 78.60 60.22 REMARK 500 22 HIS A 10 -51.03 -160.07 REMARK 500 22 TYR A 11 -79.00 -163.84 REMARK 500 22 SER A 12 103.88 157.10 REMARK 500 23 CYS A 2 -52.65 -173.24 REMARK 500 23 ASN A 4 63.77 -117.58 REMARK 500 23 ALA A 6 39.06 -165.75 REMARK 500 23 CYS A 7 23.34 -158.43 REMARK 500 23 HIS A 10 -57.83 -149.37 REMARK 500 23 SER A 12 84.08 52.27 REMARK 500 24 CYS A 2 -49.01 -164.45 REMARK 500 24 ARG A 9 -13.70 -165.55 REMARK 500 25 CYS A 2 -52.09 -151.39 REMARK 500 25 ALA A 6 40.90 -155.13 REMARK 500 25 CYS A 7 21.76 -148.62 REMARK 500 25 TYR A 11 -98.68 -174.75 REMARK 500 25 SER A 12 100.36 -166.50 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 ASN A 4 PRO A 5 7 149.65 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 14
DBREF 1XGC A 1 13 UNP P01519 CXAA_CONGE 1 13
SEQRES 1 A 14 GLU CYS CYS ASN PRO ALA CYS GLY ARG HIS TYR SER CYS SEQRES 2 A 14 NH2
HET NH2 A 14 3
HETNAM NH2 AMINO GROUP
FORMUL 1 NH2 H2 N
SSBOND 1 CYS A 2 CYS A 3 1555 1555 2.04 SSBOND 2 CYS A 7 CYS A 13 1555 1555 2.02
LINK N NH2 A 14 C CYS A 13 1555 1555 1.30
SITE 1 AC1 2 ASN A 4 CYS A 13
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