5TNC - Header Asymmetric Unit

HEADER CONTRACTILE SYSTEM PROTEINS 27-MAY-88 5TNC

TITLE REFINED CRYSTAL STRUCTURE OF TROPONIN C FROM TURKEY TITLE 2 SKELETAL MUSCLE AT 2.0 ANGSTROMS RESOLUTION

COMPND MOL_ID: 1; COMPND 2 MOLECULE: TROPONIN-C; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MELEAGRIS GALLOPAVO; SOURCE 3 ORGANISM_COMMON: TURKEY; SOURCE 4 ORGANISM_TAXID: 9103

KEYWDS CONTRACTILE SYSTEM PROTEINS

EXPDTA X-RAY DIFFRACTION

AUTHOR O.HERZBERG,M.N.G.JAMES

REVDAT 4 24-FEB-09 5TNC 1 VERSN REVDAT 3 01-APR-03 5TNC 1 JRNL REVDAT 2 09-JAN-89 5TNC 1 JRNL SEQRES REVDAT 1 09-OCT-88 5TNC 0

SPRSDE 09-OCT-88 5TNC 2TNC

JRNL AUTH O.HERZBERG,M.N.JAMES JRNL TITL REFINED CRYSTAL STRUCTURE OF TROPONIN C FROM JRNL TITL 2 TURKEY SKELETAL MUSCLE AT 2.0 A RESOLUTION. JRNL REF J.MOL.BIOL. V. 203 761 1988 JRNL REFN ISSN 0022-2836 JRNL PMID 3210231 JRNL DOI 10.1016/0022-2836(88)90208-2

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH O.HERZBERG,J.MOULT,M.N.G.JAMES REMARK 1 TITL MOLECULAR STRUCTURE OF TROPONIN C AND ITS REMARK 1 TITL 2 IMPLICATIONS FOR THE CA2+ TRIGGERING OF MUSCLE REMARK 1 TITL 3 CONTRACTION REMARK 1 REF METHODS ENZYMOL. V. 139 610 1987 REMARK 1 REFN ISSN 0076-6879 REMARK 1 REFERENCE 2 REMARK 1 AUTH O.HERZBERG,J.MOULT,M.N.G.JAMES REMARK 1 TITL CONFORMATIONAL FLEXIBILITY OF TROPONIN C REMARK 1 EDIT A.W.NORMAN, T.C.VANAMAN, A.R.MEANS REMARK 1 REF CALCIUM-BINDING PROTEINS IN 312 1987 REMARK 1 REF 2 HEALTH AND DISEASE REMARK 1 PUBL ACADEMIC PRESS, SAN DIEGO, CA REMARK 1 REFN REMARK 1 REFERENCE 3 REMARK 1 AUTH O.HERZBERG,J.MOULT,M.N.G.JAMES REMARK 1 TITL CALCIUM BINDING TO SKELETAL MUSCLE TROPONIN C AND REMARK 1 TITL 2 THE REGULATION OF MUSCLE CONTRACTION REMARK 1 REF CIBA FOUND.SYMP. V. 122 120 1986 REMARK 1 REFN ISSN 0300-5208 REMARK 1 REFERENCE 4 REMARK 1 AUTH O.HERZBERG,M.N.G.JAMES REMARK 1 TITL CRYSTALLOGRAPHIC DETERMINATION OF LANTHANIDE ION REMARK 1 TITL 2 BINDING TO TROPONIN C REMARK 1 REF FEBS LETT. V. 199 279 1986 REMARK 1 REFN ISSN 0014-5793 REMARK 1 REFERENCE 5 REMARK 1 AUTH O.HERZBERG,J.MOULT,M.N.G.JAMES REMARK 1 TITL A MODEL FOR THE CA2+-INDUCED CONFORMATIONAL REMARK 1 TITL 2 TRANSITION OF TROPONIN C. A TRIGGER FOR MUSCLE REMARK 1 TITL 3 CONTRACTION REMARK 1 REF J.BIOL.CHEM. V. 261 2638 1986 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 6 REMARK 1 AUTH O.HERZBERG,M.N.G.JAMES REMARK 1 TITL COMMON STRUCTURAL FRAMEWORK OF THE TWO REMARK 1 TITL 2 CA2+(SLASH)MG2+ BINDING LOOPS OF TROPONIN C AND REMARK 1 TITL 3 OTHER CA2+ BINDING PROTEINS REMARK 1 REF BIOCHEMISTRY V. 24 5298 1985 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 7 REMARK 1 AUTH O.HERZBERG,M.N.G.JAMES REMARK 1 TITL STRUCTURE OF THE CALCIUM REGULATORY MUSCLE PROTEIN REMARK 1 TITL 2 TROPONIN-C AT 2.8 ANGSTROMS RESOLUTION REMARK 1 REF NATURE V. 313 653 1985 REMARK 1 REFN ISSN 0028-0836 REMARK 1 REFERENCE 8 REMARK 1 AUTH O.HERZBERG,K.HAYAKAWA,M.N.G.JAMES REMARK 1 TITL CRYSTALLOGRAPHIC DATA FOR TROPONIN C FROM TURKEY REMARK 1 TITL 2 SKELETAL MUSCLE REMARK 1 REF J.MOL.BIOL. V. 172 345 1984 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 9 REMARK 1 AUTH O.HERZBERG,M.N.G.JAMES REMARK 1 TITL THE CRYSTAL STRUCTURE OF TROPONIN C FROM TURKEY REMARK 1 TITL 2 SKELETAL MUSCLE AT 2.8 ANGSTROMS RESOLUTION REMARK 1 REF ACTA CRYSTALLOGR.,SECT.A V. 40 C37 1984 REMARK 1 REFN ISSN 0108-7673

REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PROLSQ REMARK 3 AUTHORS : KONNERT,HENDRICKSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 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 + TEST SET) : 0.155 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 REMARK 3 FIT/AGREEMENT OF MODEL WITH ALL DATA. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1262 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 157 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 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.019 ; 0.017 REMARK 3 ANGLE DISTANCE (A) : 0.045 ; 0.028 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.049 ; 0.034 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.012 ; 0.015 REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.198 ; 0.140 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.239 ; 0.400 REMARK 3 MULTIPLE TORSION (A) : 0.286 ; 0.400 REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : 0.283 ; 0.400 REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : 2.500 ; 3.500 REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 5TNC COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.

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 <I/SIGMA(I)> 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 <I/SIGMA(I)> 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 (%): 42.12 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.13 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL

REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+1/3 REMARK 290 6555 -X,-X+Y,-Z+2/3 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 40.60667 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 20.30333 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 20.30333 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 40.60667 REMARK 290 REMARK 290 REMARK: NULL

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 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 ALA A 1

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 GLU A 67 CG CD OE1 OE2 REMARK 470 GLN A 162 CB CG CD OE1 NE2

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 229 DISTANCE = 7.73 ANGSTROMS REMARK 525 HOH A 244 DISTANCE = 6.70 ANGSTROMS REMARK 525 HOH A 284 DISTANCE = 5.46 ANGSTROMS REMARK 525 HOH A 288 DISTANCE = 5.01 ANGSTROMS

REMARK 600 REMARK 600 HETEROGEN REMARK 600 THE WATER MOLECULES ARE ARRANGED IN DESCENDING ORDER OF REMARK 600 RELIABILITY WHERE RELIABILITY IS DEFINED BY THE QUALITY REMARK 600 FACTOR OCCUPANCY**2/B (M.N.G.JAMES, A.R.SIELECKI, J.MOL. REMARK 600 BIOL., V. 163, P. 299 (1983)). THUS A QUALITY FACTOR OF REMARK 600 0.025 CORRESPONDS TO B=40.0 AND OCCUPANCY=1.0.

REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 163 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 110 OD1 REMARK 620 2 PHE A 112 O 80.7 REMARK 620 3 HOH A 173 O 85.1 103.3 REMARK 620 4 ASP A 106 OD2 85.5 83.1 167.6 REMARK 620 5 ASN A 108 OD1 76.7 152.2 90.9 79.1 REMARK 620 6 GLU A 117 OE1 150.1 76.0 82.2 109.8 130.2 REMARK 620 7 GLU A 117 OE2 155.7 121.8 96.9 88.4 79.0 53.4 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 164 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 146 OD1 REMARK 620 2 ASN A 144 OD1 80.1 REMARK 620 3 HOH A 167 O 73.8 84.3 REMARK 620 4 GLU A 153 OE2 157.5 77.5 105.4 REMARK 620 5 ARG A 148 O 81.2 160.5 95.6 121.0 REMARK 620 6 GLU A 153 OE1 145.8 121.2 81.6 52.7 77.9 REMARK 620 7 ASP A 142 OD2 86.1 88.5 159.5 91.7 84.9 118.4 REMARK 620 8 ASP A 74 OD1 119.8 39.7 94.6 37.8 158.6 85.1 92.0 REMARK 620 9 ASP A 74 OD2 169.4 91.1 99.7 15.5 108.1 37.2 99.6 51.5 REMARK 620 N 1 2 3 4 5 6 7 8

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: I REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: LOW AFFINITY CALCIUM BINDING SITE REMARK 800 SITE_IDENTIFIER: II REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: LOW AFFINITY CALCIUM BINDING SITE REMARK 800 SITE_IDENTIFIER: III REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: HIGH AFFINITY CALCIUM BINDING SITE REMARK 800 SITE_IDENTIFIER: IV REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: HIGH AFFINITY CALCIUM BINDING SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 163 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 164

REMARK 999 REMARK 999 SEQUENCE REMARK 999 BASED ON AMINO ACID COMPOSITION AND THE ELECTRON DENSITY REMARK 999 MAP, ALA 99 IN CHICKEN TNC WAS IDENTIFIED AS GLU 99 IN REMARK 999 TURKEY TNC.

DBREF 5TNC A 2 162 UNP P10246 TNNC2_MELGA 2 162

SEQADV 5TNC GLU A 99 UNP P10246 ALA 99 CONFLICT SEQADV 5TNC ASP A 100 UNP P10246 ASN 100 CONFLICT SEQADV 5TNC ASP A 133 UNP P10246 GLU 133 CONFLICT

SEQRES 1 A 162 ALA SER MET THR ASP GLN GLN ALA GLU ALA ARG ALA PHE SEQRES 2 A 162 LEU SER GLU GLU MET ILE ALA GLU PHE LYS ALA ALA PHE SEQRES 3 A 162 ASP MET PHE ASP ALA ASP GLY GLY GLY ASP ILE SER THR SEQRES 4 A 162 LYS GLU LEU GLY THR VAL MET ARG MET LEU GLY GLN ASN SEQRES 5 A 162 PRO THR LYS GLU GLU LEU ASP ALA ILE ILE GLU GLU VAL SEQRES 6 A 162 ASP GLU ASP GLY SER GLY THR ILE ASP PHE GLU GLU PHE SEQRES 7 A 162 LEU VAL MET MET VAL ARG GLN MET LYS GLU ASP ALA LYS SEQRES 8 A 162 GLY LYS SER GLU GLU GLU LEU GLU ASP CYS PHE ARG ILE SEQRES 9 A 162 PHE ASP LYS ASN ALA ASP GLY PHE ILE ASP ILE GLU GLU SEQRES 10 A 162 LEU GLY GLU ILE LEU ARG ALA THR GLY GLU HIS VAL THR SEQRES 11 A 162 GLU GLU ASP ILE GLU ASP LEU MET LYS ASP SER ASP LYS SEQRES 12 A 162 ASN ASN ASP GLY ARG ILE ASP PHE ASP GLU PHE LEU LYS SEQRES 13 A 162 MET MET GLU GLY VAL GLN

HET CA A 163 1 HET CA A 164 1

HETNAM CA CALCIUM ION

FORMUL 2 CA 2(CA 2+) FORMUL 4 HOH *157(H2 O)

HELIX 1 N MET A 3 PHE A 13 1 11 HELIX 2 A GLU A 16 MET A 28 1 13 HELIX 3 B THR A 39 MET A 48 1 10 HELIX 4 C LYS A 55 VAL A 65 1 11 HELIX 5 D PHE A 75 MET A 86 1 12 HELIX 6 DE LYS A 87 GLU A 97 1 11 HELIX 7 E LEU A 98 PHE A 105 1 8 HELIX 8 F ILE A 115 THR A 125 1 11 HELIX 9 G GLU A 131 SER A 141 1 11 HELIX 10 H PHE A 151 MET A 158 1 8

SHEET 1 A 2 ASP A 36 SER A 38 0 SHEET 2 A 2 THR A 72 ASP A 74 -1 N ILE A 73 O ILE A 37 SHEET 1 B 2 ILE A 113 ASP A 114 0 SHEET 2 B 2 ARG A 148 ILE A 149 -1 O ILE A 149 N ILE A 113

LINK CA CA A 163 OD1 ASP A 110 1555 1555 2.26 LINK CA CA A 163 O PHE A 112 1555 1555 2.13 LINK CA CA A 163 O HOH A 173 1555 1555 2.34 LINK CA CA A 163 OD2 ASP A 106 1555 1555 2.39 LINK CA CA A 163 OD1 ASN A 108 1555 1555 2.44 LINK CA CA A 163 OE1 GLU A 117 1555 1555 2.24 LINK CA CA A 163 OE2 GLU A 117 1555 1555 2.57 LINK CA CA A 164 OD1 ASP A 146 1555 1555 2.50 LINK CA CA A 164 OD1 ASN A 144 1555 1555 2.28 LINK CA CA A 164 O HOH A 167 1555 1555 2.70 LINK CA CA A 164 OE2 GLU A 153 1555 1555 2.37 LINK CA CA A 164 O ARG A 148 1555 1555 2.45 LINK CA CA A 164 OE1 GLU A 153 1555 1555 2.46 LINK CA CA A 164 OD2 ASP A 142 1555 1555 2.38 LINK CA CA A 164 OD1 ASP A 74 1555 3565 2.72 LINK CA CA A 164 OD2 ASP A 74 1555 3565 2.07

SITE 1 I 12 ASP A 30 ALA A 31 ASP A 32 GLY A 33 SITE 2 I 12 GLY A 34 GLY A 35 ASP A 36 ILE A 37 SITE 3 I 12 SER A 38 THR A 39 LYS A 40 GLU A 41 SITE 1 II 12 ASP A 66 GLU A 67 ASP A 68 GLY A 69 SITE 2 II 12 SER A 70 GLY A 71 THR A 72 ILE A 73 SITE 3 II 12 ASP A 74 PHE A 75 GLU A 76 GLU A 77 SITE 1 III 12 ASP A 106 LYS A 107 ASN A 108 ALA A 109 SITE 2 III 12 ASP A 110 GLY A 111 PHE A 112 ILE A 113 SITE 3 III 12 ASP A 114 ILE A 115 GLU A 116 GLU A 117 SITE 1 IV 12 ASP A 142 LYS A 143 ASN A 144 ASN A 145 SITE 2 IV 12 ASP A 146 GLY A 147 ARG A 148 ILE A 149 SITE 3 IV 12 ASP A 150 PHE A 151 ASP A 152 GLU A 153 SITE 1 AC1 6 ASP A 106 ASN A 108 ASP A 110 PHE A 112 SITE 2 AC1 6 GLU A 117 HOH A 173 SITE 1 AC2 7 ASP A 74 ASP A 142 ASN A 144 ASP A 146 SITE 2 AC2 7 ARG A 148 GLU A 153 HOH A 167

CRYST1 66.550 66.550 60.910 90.00 90.00 120.00 P 32 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 0.015026 0.008675 0.000000 0.00000

SCALE2 0.000000 0.017351 0.000000 0.00000

SCALE3 0.000000 0.000000 0.016418 0.00000