HEADER VIRAL PROTEIN 06-OCT-07 2JW8 TITLE SOLUTION STRUCTURE OF STEREO-ARRAY ISOTOPE LABELLED (SAIL) C-TERMINAL TITLE 2 DIMERIZATION DOMAIN OF SARS CORONAVIRUS NUCLEOCAPSID PROTEIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: NUCLEOCAPSID PROTEIN; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: UNP RESIDUES 248-365; COMPND 5 SYNONYM: N PROTEIN, NC; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HUMAN SARS CORONAVIRUS; SOURCE 3 ORGANISM_COMMON: SARS-COV; SOURCE 4 ORGANISM_TAXID: 227859; SOURCE 5 EXPRESSION_SYSTEM: CELL-FREE SYNTHESIS; SOURCE 6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 7 EXPRESSION_SYSTEM_VECTOR: PET KEYWDS SAIL, SARS CORONAVIRUS NUCLEOCAPSID PROTEIN, NUCLEOCAPSID PACKAGING, KEYWDS 2 CYTOPLASM, GOLGI APPARATUS, PHOSPHORYLATION, RNA-BINDING, VIRAL KEYWDS 3 NUCLEOPROTEIN, VIRION, STRUCTURAL PROTEIN, VIRAL PROTEIN EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR M.TAKEDA,C.CHANG,T.IKEYA,P.GUNTERT,Y.CHANG,Y.HSU,T.HUANG,M.KAINOSHO REVDAT 3 16-MAR-22 2JW8 1 REMARK SEQADV REVDAT 2 24-FEB-09 2JW8 1 VERSN REVDAT 1 26-AUG-08 2JW8 0 JRNL AUTH M.TAKEDA,C.K.CHANG,T.IKEYA,Y.H.CHANG,Y.L.HSU,T.H.HUANG, JRNL AUTH 2 M.KAINOSHO JRNL TITL SOLUTION STRUCTURE OF THE C-TERMINAL DIMERIZATION DOMAIN OF JRNL TITL 2 SARS CORONAVIRUS NUCLEOCAPSID PROTEIN SOLVED BY THE SAIL-NMR JRNL TITL 3 METHOD JRNL REF J.MOL.BIOL. V. 380 608 2008 JRNL REFN ISSN 0022-2836 JRNL PMID 18561946 JRNL DOI 10.1016/J.JMB.2007.11.093 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CYANA, CYANA 2.2 REMARK 3 AUTHORS : GODDARD (CYANA), GUNTERT, MUMENTHALER AND WUTHRICH REMARK 3 (CYANA) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 2JW8 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 12-OCT-07. REMARK 100 THE DEPOSITION ID IS D_1000100368. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 303 REMARK 210 PH : 6.0 REMARK 210 IONIC STRENGTH : 50 REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : 0.5MM SAIL-C-TERMINAL REMARK 210 DIMERIZATION DOMAIN OF SARS REMARK 210 CORONAVIRUS NUCLEOCAPSID PROTEIN, REMARK 210 10MM SODIUM PHOSPHATE, 50MM REMARK 210 NACL, 1MM EDTA, 1MM DSS, 90% H2O/ REMARK 210 10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-15N HSQC; 2D 1H-13C HSQC; REMARK 210 3D HNCA; 3D HN(CO)CA; 3D HCCH- REMARK 210 TOCSY; 3D 1H-15N NOESY; 3D 1H- REMARK 210 13C NOESY; 3D HNCACB; 3D HBHA(CO) REMARK 210 NH; 3D CBCA(CO)NH REMARK 210 SPECTROMETER FIELD STRENGTH : 800 MHZ; 600 MHZ REMARK 210 SPECTROMETER MODEL : DRX; AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : CYANA 2.2 REMARK 210 METHOD USED : SIMULATED ANNEALING, TORSION REMARK 210 ANGLE DYNAMICS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 200 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: NULL 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: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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. (RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 465 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 MODELS 1-20 REMARK 465 RES C SSSEQI REMARK 465 MET A 238 REMARK 465 HIS A 239 REMARK 465 HIS A 240 REMARK 465 HIS A 241 REMARK 465 HIS A 242 REMARK 465 HIS A 243 REMARK 465 HIS A 244 REMARK 465 ALA A 245 REMARK 465 MET A 246 REMARK 465 GLY A 247 REMARK 465 MET B 238 REMARK 465 HIS B 239 REMARK 465 HIS B 240 REMARK 465 HIS B 241 REMARK 465 HIS B 242 REMARK 465 HIS B 243 REMARK 465 HIS B 244 REMARK 465 ALA B 245 REMARK 465 MET B 246 REMARK 465 GLY B 247 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 OD2 ASP B 289 HH TYR B 299 1.60 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 16 ARG B 278 NE - CZ - NH2 ANGL. DEV. = -3.0 DEGREES REMARK 500 19 ARG A 278 NE - CZ - NH2 ANGL. DEV. = -3.2 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 PHE A 275 -81.58 -111.78 REMARK 500 1 PRO A 280 22.09 -78.12 REMARK 500 1 HIS A 301 -10.23 58.16 REMARK 500 1 PHE A 316 52.09 -119.13 REMARK 500 1 SER A 319 27.59 -69.96 REMARK 500 1 ARG A 320 73.72 51.94 REMARK 500 1 ASP A 341 64.11 -69.71 REMARK 500 1 ASP A 359 22.49 -77.71 REMARK 500 1 LYS B 249 -72.54 -86.23 REMARK 500 1 LYS B 250 -22.25 64.01 REMARK 500 1 SER B 251 101.83 -54.41 REMARK 500 1 LYS B 262 49.84 -95.96 REMARK 500 1 PHE B 275 -82.88 -91.01 REMARK 500 1 HIS B 301 -0.87 81.33 REMARK 500 1 ASP B 341 49.48 -82.58 REMARK 500 1 ASP B 342 8.77 -59.25 REMARK 500 2 SER A 256 71.26 38.99 REMARK 500 2 LYS A 262 49.41 -140.79 REMARK 500 2 PHE A 275 -83.06 -102.07 REMARK 500 2 SER A 319 27.63 -74.46 REMARK 500 2 LYS A 343 -28.81 -150.52 REMARK 500 2 ARG B 263 109.23 -59.46 REMARK 500 2 PHE B 275 -76.15 -119.53 REMARK 500 2 GLN B 284 -76.03 -97.44 REMARK 500 2 HIS B 301 0.82 59.41 REMARK 500 2 MET B 318 36.97 -67.54 REMARK 500 2 ASP B 342 17.30 -61.80 REMARK 500 3 LYS A 250 -51.45 -139.03 REMARK 500 3 SER A 251 49.88 35.41 REMARK 500 3 PHE A 275 -65.41 -96.89 REMARK 500 3 HIS A 301 15.97 58.68 REMARK 500 3 SER A 319 28.26 -63.18 REMARK 500 3 ASP A 341 30.88 -73.84 REMARK 500 3 ASP A 342 73.08 -48.75 REMARK 500 3 LYS A 343 35.28 -162.11 REMARK 500 3 GLN A 346 0.17 -69.89 REMARK 500 3 LYS B 249 54.89 -141.20 REMARK 500 3 ALA B 252 -4.41 -58.47 REMARK 500 3 LYS B 267 -8.33 -59.74 REMARK 500 3 PHE B 275 -82.01 -112.60 REMARK 500 3 ARG B 278 -87.90 -70.35 REMARK 500 3 THR B 283 21.71 -79.16 REMARK 500 3 GLN B 284 -69.04 -123.46 REMARK 500 3 HIS B 301 10.77 57.35 REMARK 500 3 ARG B 320 72.18 44.26 REMARK 500 3 LEU B 340 -178.45 -68.49 REMARK 500 3 ASP B 342 6.52 -32.60 REMARK 500 4 PHE A 275 -86.82 -105.37 REMARK 500 4 SER A 319 27.55 -73.55 REMARK 500 4 ARG A 320 73.14 48.61 REMARK 500 REMARK 500 THIS ENTRY HAS 247 RAMACHANDRAN OUTLIERS. 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 2 ARG A 294 0.09 SIDE CHAIN REMARK 500 2 ARG B 263 0.10 SIDE CHAIN REMARK 500 2 ARG B 278 0.10 SIDE CHAIN REMARK 500 3 ARG A 260 0.09 SIDE CHAIN REMARK 500 4 ARG A 294 0.10 SIDE CHAIN REMARK 500 4 ARG B 260 0.10 SIDE CHAIN REMARK 500 4 ARG B 320 0.08 SIDE CHAIN REMARK 500 5 ARG B 294 0.12 SIDE CHAIN REMARK 500 6 ARG A 277 0.08 SIDE CHAIN REMARK 500 6 ARG A 294 0.11 SIDE CHAIN REMARK 500 6 ARG B 278 0.08 SIDE CHAIN REMARK 500 8 ARG B 294 0.08 SIDE CHAIN REMARK 500 8 TYR B 299 0.06 SIDE CHAIN REMARK 500 9 ARG A 263 0.08 SIDE CHAIN REMARK 500 9 ARG A 278 0.08 SIDE CHAIN REMARK 500 9 TYR A 361 0.07 SIDE CHAIN REMARK 500 10 ARG A 294 0.10 SIDE CHAIN REMARK 500 10 ARG B 294 0.10 SIDE CHAIN REMARK 500 11 ARG B 263 0.10 SIDE CHAIN REMARK 500 11 TYR B 299 0.09 SIDE CHAIN REMARK 500 12 ARG A 278 0.08 SIDE CHAIN REMARK 500 12 ARG B 260 0.10 SIDE CHAIN REMARK 500 13 ARG A 294 0.09 SIDE CHAIN REMARK 500 13 ARG B 260 0.07 SIDE CHAIN REMARK 500 13 TYR B 299 0.09 SIDE CHAIN REMARK 500 13 TYR B 361 0.07 SIDE CHAIN REMARK 500 15 ARG A 294 0.09 SIDE CHAIN REMARK 500 15 TYR A 299 0.10 SIDE CHAIN REMARK 500 15 ARG B 260 0.09 SIDE CHAIN REMARK 500 15 ARG B 278 0.09 SIDE CHAIN REMARK 500 15 ARG B 294 0.08 SIDE CHAIN REMARK 500 16 ARG B 278 0.09 SIDE CHAIN REMARK 500 16 ARG B 320 0.09 SIDE CHAIN REMARK 500 17 ARG A 260 0.11 SIDE CHAIN REMARK 500 17 ARG A 263 0.08 SIDE CHAIN REMARK 500 17 TYR B 361 0.08 SIDE CHAIN REMARK 500 20 ARG B 260 0.08 SIDE CHAIN REMARK 500 20 TYR B 299 0.13 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL DBREF 2JW8 A 248 365 UNP P59595 NCAP_CVHSA 248 365 DBREF 2JW8 B 248 365 UNP P59595 NCAP_CVHSA 248 365 SEQADV 2JW8 MET A 238 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS A 239 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS A 240 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS A 241 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS A 242 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS A 243 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS A 244 UNP P59595 EXPRESSION TAG SEQADV 2JW8 ALA A 245 UNP P59595 EXPRESSION TAG SEQADV 2JW8 MET A 246 UNP P59595 EXPRESSION TAG SEQADV 2JW8 GLY A 247 UNP P59595 EXPRESSION TAG SEQADV 2JW8 MET B 238 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS B 239 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS B 240 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS B 241 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS B 242 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS B 243 UNP P59595 EXPRESSION TAG SEQADV 2JW8 HIS B 244 UNP P59595 EXPRESSION TAG SEQADV 2JW8 ALA B 245 UNP P59595 EXPRESSION TAG SEQADV 2JW8 MET B 246 UNP P59595 EXPRESSION TAG SEQADV 2JW8 GLY B 247 UNP P59595 EXPRESSION TAG SEQRES 1 A 128 MET HIS HIS HIS HIS HIS HIS ALA MET GLY THR LYS LYS SEQRES 2 A 128 SER ALA ALA GLU ALA SER LYS LYS PRO ARG GLN LYS ARG SEQRES 3 A 128 THR ALA THR LYS GLN TYR ASN VAL THR GLN ALA PHE GLY SEQRES 4 A 128 ARG ARG GLY PRO GLU GLN THR GLN GLY ASN PHE GLY ASP SEQRES 5 A 128 GLN ASP LEU ILE ARG GLN GLY THR ASP TYR LYS HIS TRP SEQRES 6 A 128 PRO GLN ILE ALA GLN PHE ALA PRO SER ALA SER ALA PHE SEQRES 7 A 128 PHE GLY MET SER ARG ILE GLY MET GLU VAL THR PRO SER SEQRES 8 A 128 GLY THR TRP LEU THR TYR HIS GLY ALA ILE LYS LEU ASP SEQRES 9 A 128 ASP LYS ASP PRO GLN PHE LYS ASP ASN VAL ILE LEU LEU SEQRES 10 A 128 ASN LYS HIS ILE ASP ALA TYR LYS THR PHE PRO SEQRES 1 B 128 MET HIS HIS HIS HIS HIS HIS ALA MET GLY THR LYS LYS SEQRES 2 B 128 SER ALA ALA GLU ALA SER LYS LYS PRO ARG GLN LYS ARG SEQRES 3 B 128 THR ALA THR LYS GLN TYR ASN VAL THR GLN ALA PHE GLY SEQRES 4 B 128 ARG ARG GLY PRO GLU GLN THR GLN GLY ASN PHE GLY ASP SEQRES 5 B 128 GLN ASP LEU ILE ARG GLN GLY THR ASP TYR LYS HIS TRP SEQRES 6 B 128 PRO GLN ILE ALA GLN PHE ALA PRO SER ALA SER ALA PHE SEQRES 7 B 128 PHE GLY MET SER ARG ILE GLY MET GLU VAL THR PRO SER SEQRES 8 B 128 GLY THR TRP LEU THR TYR HIS GLY ALA ILE LYS LEU ASP SEQRES 9 B 128 ASP LYS ASP PRO GLN PHE LYS ASP ASN VAL ILE LEU LEU SEQRES 10 B 128 ASN LYS HIS ILE ASP ALA TYR LYS THR PHE PRO HELIX 1 1 SER A 251 SER A 256 5 6 HELIX 2 2 ASN A 270 PHE A 275 1 6 HELIX 3 3 ASP A 291 GLY A 296 1 6 HELIX 4 4 THR A 297 TYR A 299 5 3 HELIX 5 5 HIS A 301 GLN A 307 1 7 HELIX 6 6 SER A 311 PHE A 316 1 6 HELIX 7 7 GLN A 346 ASP A 359 1 14 HELIX 8 8 ASP A 359 PHE A 364 1 6 HELIX 9 9 ALA B 252 SER B 256 5 5 HELIX 10 10 ASN B 270 PHE B 275 1 6 HELIX 11 11 GLU B 281 GLY B 285 5 5 HELIX 12 12 ASP B 291 GLY B 296 1 6 HELIX 13 13 THR B 297 TYR B 299 5 3 HELIX 14 14 TRP B 302 GLN B 307 1 6 HELIX 15 15 SER B 311 PHE B 316 1 6 HELIX 16 16 GLN B 346 TYR B 361 1 16 HELIX 17 17 LYS B 362 PHE B 364 5 3 SHEET 1 A 4 GLY A 322 THR A 326 0 SHEET 2 A 4 GLY A 329 LYS A 339 -1 O GLY A 329 N THR A 326 SHEET 3 A 4 GLY B 329 ILE B 338 -1 O ILE B 338 N LEU A 332 SHEET 4 A 4 GLY B 322 THR B 326 -1 N GLY B 322 O THR B 333 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 MODEL 2 MODEL 3 MODEL 4 MODEL 5 MODEL 6 MODEL 7 MODEL 8 MODEL 9 MODEL 10 MODEL 11 MODEL 12 MODEL 13 MODEL 14 MODEL 15 MODEL 16 MODEL 17 MODEL 18 MODEL 19 MODEL 20