HEADER HYDROLASE(CARBOXYLIC ESTERASE) 08-OCT-91 1ACE OBSLTE 08-NOV-96 1ACE 2ACE TITLE ATOMIC STRUCTURE OF ACETYLCHOLINESTERASE FROM TORPEDO TITLE 2 CALIFORNICA: A PROTOTYPIC ACETYLCHOLINE-*BINDING PROTEIN COMPND MOL_ID: 1; COMPND 2 MOLECULE:; COMPND 3 CHAIN: NULL; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1 KEYWDS HYDROLASE(CARBOXYLIC ESTERASE) EXPDTA X-RAY DIFFRACTION AUTHOR J.L.SUSSMAN,M.HAREL,I.SILMAN REVDAT 1 15-JAN-92 1ACE 0 JRNL AUTH J.L.SUSSMAN,M.HAREL,F.FROLOW,C.OEFNER,A.GOLDMAN, JRNL AUTH 2 L.TOKER,I.SILMAN JRNL TITL ATOMIC STRUCTURE OF ACETYLCHOLINESTERASE FROM JRNL TITL 2 TORPEDO CALIFORNICA: A PROTOTYPIC JRNL TITL 3 ACETYLCHOLINE-BINDING PROTEIN JRNL REF SCIENCE V. 253 872 1991 JRNL REFN ASTM SCIEAS US ISSN 0036-8075 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.SUSSMAN,M.HAREL,F.FROLOW,C.OEFNER,L.TOKER, REMARK 1 AUTH 2 I.SILMAN REMARK 1 TITL STRUCTURAL STUDIES ON ACETYLCHOLINESTERASES FROM REMARK 1 TITL 2 TORPEDO CALIFORNICA REMARK 1 EDIT J.MASSOULIE, F.BACOU, E.BARNARD, A.CHATONNET, REMARK 1 EDIT 2 B.DOCTOR, D.M.QUINN REMARK 1 REF CHOLINESTERASES: STRUCTURE, 7 1991 REMARK 1 REF 2 FUNCTION, MECHANISM, REMARK 1 REF 3 GENETICS, AND CELL BIOLOGY REMARK 1 PUBL AMERICAN CHEMICAL SOCIETY, COLUMBUS, OH REMARK 1 REFN ISBN 0-8412-2008-5 REMARK 1 REFERENCE 2 REMARK 1 AUTH J.L.SUSSMAN,M.HAREL,F.FROLOW,A.GOLDMAN,C.OEFNER, REMARK 1 AUTH 2 L.TOKER,I.SILMAN REMARK 1 TITL 3-D STRUCTURE OF ACETYLCHOLINESTERASE FROM TORPEDO REMARK 1 TITL 2 CALIFORNICA REMARK 1 REF PROCEEDINGS OF THE 1991 441 1991 REMARK 1 REF 2 MEDICAL DEFENSE BIOSCIENCE REMARK 1 REF 3 REVIEW REMARK 1 REFN US REMARK 1 REFERENCE 3 REMARK 1 AUTH J.L.SUSSMAN,M.HAREL,F.FROLOW,I.SILMAN REMARK 1 TITL X-RAY CRYSTALLOGRAPHIC STUDIES OF REMARK 1 TITL 2 ACETYLCHOLINESTERASE REMARK 1 REF PROCEEDINGS OF THE 1989 309 1989 REMARK 1 REF 2 MEDICAL DEFENSE BIOSCIENCE REMARK 1 REF 3 REVIEW REMARK 1 REFN US REMARK 1 REFERENCE 4 REMARK 1 AUTH J.L.SUSSMAN,M.HAREL,F.FROLOW,L.VARON,L.TOKER, REMARK 1 AUTH 2 A.H.FUTERMAN,I.SILMAN REMARK 1 TITL PURIFICATION AND CRYSTALLIZATION OF A DIMERIC FORM REMARK 1 TITL 2 OF ACETYLCHOLINESTERASE FROM TORPEDO CALIFORNICA REMARK 1 TITL 3 SUBSEQUENT TO SOLUBILIZATION WITH REMARK 1 TITL 4 PHOSPHATIDYLINOSITOL-SPECIFIC PHOSPHOLIPASE C REMARK 1 REF J.MOL.BIOL. V. 203 821 1988 REMARK 1 REFN ASTM JMOBAK UK ISSN 0022-2836 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 : 4115 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 71 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 1ACE COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 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 (%): 70.31 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.14 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,1/3+Z REMARK 290 3555 -X+Y,-X,2/3+Z REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,2/3-Z REMARK 290 6555 -X,-X+Y,1/3-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 -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 45.66667 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 91.33333 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 91.33333 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 45.66667 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 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 1 REMARK 465 ASP 2 REMARK 465 HIS 3 REMARK 465 PRO 485 REMARK 465 HIS 486 REMARK 465 SER 487 REMARK 465 GLN 488 REMARK 465 GLU 489 REMARK 465 THR 535 REMARK 465 ALA 536 REMARK 465 CYS 537 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 HIS 26 CG ND1 CD2 CE1 NE2 REMARK 470 ASN 42 CG OD1 ND2 REMARK 470 ARG 47 CD NE CZ NH1 NH2 REMARK 470 GLU 49 CD OE1 OE2 REMARK 470 ARG 88 CZ NH1 NH2 REMARK 470 GLU 89 CD OE1 OE2 REMARK 470 ASN 257 CG OD1 ND2 REMARK 470 GLU 260 CG CD OE1 OE2 REMARK 470 GLU 268 CD OE1 OE2 REMARK 470 LYS 270 CD CE NZ REMARK 470 GLU 299 CD OE1 OE2 REMARK 470 LYS 325 NZ REMARK 470 GLU 344 CD OE1 OE2 REMARK 470 GLU 350 CD OE1 OE2 REMARK 470 MET 353 SD CE REMARK 470 ASP 365 CG OD1 OD2 REMARK 470 ASN 382 CG OD1 ND2 REMARK 470 GLU 434 CD OE1 OE2 REMARK 470 GLU 455 CD OE1 OE2 REMARK 470 GLU 461 CD OE1 OE2 REMARK 470 GLU 484 CD OE1 OE2 REMARK 470 LYS 498 NZ REMARK 470 GLU 499 CD OE1 OE2 REMARK 470 GLU 508 CD OE1 OE2 REMARK 470 ARG 515 CZ NH1 NH2 REMARK 470 GLN 526 CD OE1 NE2 REMARK 470 ASN 533 CG OD1 ND2 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 O7 ACH 998 O HOH 49 0.48 REMARK 500 N1 ACH 998 O HOH 1 0.88 REMARK 500 C10 ACH 998 O HOH 1 0.98 REMARK 500 OG SER 200 C5 ACH 998 1.19 REMARK 500 C5 ACH 998 O HOH 49 1.36 REMARK 500 C2 ACH 998 O HOH 1 1.74 REMARK 500 C9 ACH 998 O HOH 1 1.75 REMARK 500 OG SER 200 O7 ACH 998 1.98 REMARK 500 C6 ACH 998 O HOH 49 2.11 REMARK 500 OG SER 200 O4 ACH 998 2.18 REMARK 500 NH2 ARG 289 OD1 ASN 399 2.19 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 ASN 167 C - N - CA ANGL. DEV. = 25.5 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 GLU 5 -67.55 55.24 REMARK 500 SER 200 -100.43 68.06 REMARK 525 REMARK 525 SOLVENT REMARK 525 THE FOLLOWING SOLVENT MOLECULES LIE FARTHER THAN EXPECTED REMARK 525 FROM THE PROTEIN OR NUCLEIC ACID MOLECULE AND MAY BE REMARK 525 ASSOCIATED WITH A SYMMETRY RELATED MOLECULE (M=MODEL REMARK 525 NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH 41 DISTANCE = 5.60 ANGSTROMS REMARK 525 HOH 59 DISTANCE = 7.45 ANGSTROMS REMARK 525 HOH 67 DISTANCE = 5.29 ANGSTROMS REMARK 525 HOH 68 DISTANCE = 5.37 ANGSTROMS SEQRES 1 537 ASP ASP HIS SER GLU LEU LEU VAL ASN THR LYS SER GLY SEQRES 2 537 LYS VAL MET GLY THR ARG VAL PRO VAL LEU SER SER HIS SEQRES 3 537 ILE SER ALA PHE LEU GLY ILE PRO PHE ALA GLU PRO PRO SEQRES 4 537 VAL GLY ASN MET ARG PHE ARG ARG PRO GLU PRO LYS LYS SEQRES 5 537 PRO TRP SER GLY VAL TRP ASN ALA SER THR TYR PRO ASN SEQRES 6 537 ASN CYS GLN GLN TYR VAL ASP GLU GLN PHE PRO GLY PHE SEQRES 7 537 SER GLY SER GLU MET TRP ASN PRO ASN ARG GLU MET SER SEQRES 8 537 GLU ASP CYS LEU TYR LEU ASN ILE TRP VAL PRO SER PRO SEQRES 9 537 ARG PRO LYS SER THR THR VAL MET VAL TRP ILE TYR GLY SEQRES 10 537 GLY GLY PHE TYR SER GLY SER SER THR LEU ASP VAL TYR SEQRES 11 537 ASN GLY LYS TYR LEU ALA TYR THR GLU GLU VAL VAL LEU SEQRES 12 537 VAL SER LEU SER TYR ARG VAL GLY ALA PHE GLY PHE LEU SEQRES 13 537 ALA LEU HIS GLY SER GLN GLU ALA PRO GLY ASN VAL GLY SEQRES 14 537 LEU LEU ASP GLN ARG MET ALA LEU GLN TRP VAL HIS ASP SEQRES 15 537 ASN ILE GLN PHE PHE GLY GLY ASP PRO LYS THR VAL THR SEQRES 16 537 ILE PHE GLY GLU SER ALA GLY GLY ALA SER VAL GLY MET SEQRES 17 537 HIS ILE LEU SER PRO GLY SER ARG ASP LEU PHE ARG ARG SEQRES 18 537 ALA ILE LEU GLN SER GLY SER PRO ASN CYS PRO TRP ALA SEQRES 19 537 SER VAL SER VAL ALA GLU GLY ARG ARG ARG ALA VAL GLU SEQRES 20 537 LEU GLY ARG ASN LEU ASN CYS ASN LEU ASN SER ASP GLU SEQRES 21 537 GLU LEU ILE HIS CYS LEU ARG GLU LYS LYS PRO GLN GLU SEQRES 22 537 LEU ILE ASP VAL GLU TRP ASN VAL LEU PRO PHE ASP SER SEQRES 23 537 ILE PHE ARG PHE SER PHE VAL PRO VAL ILE ASP GLY GLU SEQRES 24 537 PHE PHE PRO THR SER LEU GLU SER MET LEU ASN SER GLY SEQRES 25 537 ASN PHE LYS LYS THR GLN ILE LEU LEU GLY VAL ASN LYS SEQRES 26 537 ASP GLU GLY SER PHE PHE LEU LEU TYR GLY ALA PRO GLY SEQRES 27 537 PHE SER LYS ASP SER GLU SER LYS ILE SER ARG GLU ASP SEQRES 28 537 PHE MET SER GLY VAL LYS LEU SER VAL PRO HIS ALA ASN SEQRES 29 537 ASP LEU GLY LEU ASP ALA VAL THR LEU GLN TYR THR ASP SEQRES 30 537 TRP MET ASP ASP ASN ASN GLY ILE LYS ASN ARG ASP GLY SEQRES 31 537 LEU ASP ASP ILE VAL GLY ASP HIS ASN VAL ILE CYS PRO SEQRES 32 537 LEU MET HIS PHE VAL ASN LYS TYR THR LYS PHE GLY ASN SEQRES 33 537 GLY THR TYR LEU TYR PHE PHE ASN HIS ARG ALA SER ASN SEQRES 34 537 LEU VAL TRP PRO GLU TRP MET GLY VAL ILE HIS GLY TYR SEQRES 35 537 GLU ILE GLU PHE VAL PHE GLY LEU PRO LEU VAL LYS GLU SEQRES 36 537 LEU ASN TYR THR ALA GLU GLU GLU ALA LEU SER ARG ARG SEQRES 37 537 ILE MET HIS TYR TRP ALA THR PHE ALA LYS THR GLY ASN SEQRES 38 537 PRO ASN GLU PRO HIS SER GLN GLU SER LYS TRP PRO LEU SEQRES 39 537 PHE THR THR LYS GLU GLN LYS PHE ILE ASP LEU ASN THR SEQRES 40 537 GLU PRO MET LYS VAL HIS GLN ARG LEU ARG VAL GLN MET SEQRES 41 537 CYS VAL PHE TRP ASN GLN PHE LEU PRO LYS LEU LEU ASN SEQRES 42 537 ALA THR ALA CYS FTNOTE 1 RESIDUE PRO 104 IS A CIS PROLINE. HET ACH 998 10 HETNAM ACH ACETYLCHOLINE FORMUL 2 ACH C7 H16 N O2 1+ FORMUL 3 HOH *71(H2 O1) HELIX 1 HA SER 79 MET 83 1 5 HELIX 2 HB LYS 133 GLU 140 1 8 HELIX 3 HC VAL 168 ILE 184 1 17 HELIX 4 HD ALA 201 LEU 211 1 11 HELIX 5 HE1 VAL 238 ASN 251 1 14 HELIX 6 HE2 ASP 259 GLU 268 1 10 HELIX 7 HE3 PRO 271 GLU 278 1 8 HELIX 8 HE SER 304 SER 311 1 8 HELIX 9 HF1 GLY 328 GLY 335 1 8 HELIX 10 HF2 ARG 349 SER 359 1 11 HELIX 11 HF3 ASP 365 TYR 375 1 11 HELIX 12 HF GLY 384 TYR 411 1 28 HELIX 13 HG ALA 460 THR 479 1 20 HELIX 14 HH VAL 518 LEU 531 1 14 SHEET 1 S110 LEU 6 THR 10 0 SHEET 2 S110 GLY 13 VAL 20 -1 SHEET 3 S110 ILE 27 LEU 31 -1 SHEET 4 S110 TYR 96 PRO 102 -1 SHEET 5 S110 VAL 141 SER 147 -1 SHEET 6 S110 THR 110 TYR 116 1 SHEET 7 S110 THR 193 GLU 199 1 SHEET 8 S110 ARG 221 SER 226 1 SHEET 9 S110 THR 317 ASN 324 1 SHEET 10 S110 ASN 416 PHE 423 1 SHEET 1 S2 2 GLN 500 LEU 505 0 SHEET 2 S2 2 MET 510 GLN 514 -1 SSBOND 1 CYS 67 CYS 94 SSBOND 2 CYS 254 CYS 265 SSBOND 3 CYS 402 CYS 521 CISPEP 1 SER 103 PRO 104 0 2.33 SITE 1 ACH 4 SER 200 GLU 327 HIS 440 ACH 998 CRYST1 112.800 112.800 137.000 90.00 90.00 120.00 P 31 2 1 6 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 0.008865 0.005118 0.000000 0.00000 SCALE2 0.000000 0.010237 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007299 0.00000