HEADER RNA BINDING PROTEIN/RNA 22-AUG-97 1AUD TITLE U1A-UTRRNA, NMR, 31 STRUCTURES COMPND MOL_ID: 1; COMPND 2 MOLECULE: RNA 3UTR; COMPND 3 CHAIN: B; COMPND 4 SYNONYM: UUCG TETRALOOP, ONLY BOX 1 OF 3'UTR RNA; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: U1A 102; COMPND 8 CHAIN: A; COMPND 9 FRAGMENT: RESIDUES 1 - 102 OF U1A; COMPND 10 SYNONYM: U1 SMALL NUCLEAR RIBONUCLEOPROTEIN A; COMPND 11 ENGINEERED: YES; COMPND 12 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 MOL_ID: 2; SOURCE 4 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 5 ORGANISM_COMMON: HUMAN; SOURCE 6 ORGANISM_TAXID: 9606; SOURCE 7 STRAIN: BL21 (DE3); SOURCE 8 CELL_LINE: BL21; SOURCE 9 GENE: U1A 1-102; SOURCE 10 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 11 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 12 EXPRESSION_SYSTEM_VECTOR_TYPE: T7; SOURCE 13 EXPRESSION_SYSTEM_PLASMID: PET13A; SOURCE 14 EXPRESSION_SYSTEM_GENE: T7 KEYWDS COMPLEX (RIBONUCLEOPROTEIN-RNA), RNP DOMAIN, RNA BINDING PROTEIN-RNA KEYWDS 2 COMPLEX EXPDTA SOLUTION NMR NUMMDL 31 AUTHOR F.H.-T.ALLAIN,C.C.GUBSER,P.W.A.HOWE,K.NAGAI,D.NEUHAUS,G.VARANI REVDAT 3 03-NOV-21 1AUD 1 REMARK SEQADV REVDAT 2 24-FEB-09 1AUD 1 VERSN REVDAT 1 25-FEB-98 1AUD 0 SPRSDE 25-FEB-98 1AUD 1NUM JRNL AUTH F.H.ALLAIN,P.W.HOWE,D.NEUHAUS,G.VARANI JRNL TITL STRUCTURAL BASIS OF THE RNA-BINDING SPECIFICITY OF HUMAN U1A JRNL TITL 2 PROTEIN. JRNL REF EMBO J. V. 16 5764 1997 JRNL REFN ISSN 0261-4189 JRNL PMID 9312034 JRNL DOI 10.1093/EMBOJ/16.18.5764 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH P.W.A.HOWE,F.H.T.ALLAIN,G.VARANI,D.NEUHAUS REMARK 1 TITL DETERMINATION OF THE NMR STRUCTURE OF THE COMPLEX BETWEEN REMARK 1 TITL 2 U1A PROTEIN AND ITS RNA POLYADENYLATION INHIBITION ELEMENT REMARK 1 REF J.BIOMOL.NMR V. 11 59 1998 REMARK 1 REFN ISSN 0925-2738 REMARK 1 REFERENCE 2 REMARK 1 AUTH F.H.ALLAIN,C.C.GUBSER,P.W.HOWE,K.NAGAI,D.NEUHAUS,G.VARANI REMARK 1 TITL SPECIFICITY OF RIBONUCLEOPROTEIN INTERACTION DETERMINED BY REMARK 1 TITL 2 RNA FOLDING DURING COMPLEX FORMULATION REMARK 1 REF NATURE V. 380 646 1996 REMARK 1 REFN ISSN 0028-0836 REMARK 1 REFERENCE 3 REMARK 1 AUTH C.OUBRIDGE,N.ITO,P.R.EVANS,C.H.TEO,K.NAGAI REMARK 1 TITL CRYSTAL STRUCTURE AT 1.92 A RESOLUTION OF THE RNA-BINDING REMARK 1 TITL 2 DOMAIN OF THE U1A SPLICEOSOMAL PROTEIN COMPLEXED WITH AN RNA REMARK 1 TITL 3 HAIRPIN REMARK 1 REF NATURE V. 372 432 1994 REMARK 1 REFN ISSN 0028-0836 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: STARTING WITH 50 STRUCTURES WITH REMARK 3 RANDOMISED BACKBONE TORSION ANGLES ON BOTH THE RNA AND THE REMARK 3 PROTEIN COMPONENTS, 31 STRUCTURES WERE FOUND TO HAVE CONVERGED. REMARK 3 THE X-PLOR PROTOCOL START WITH A PERIOD OF SIMULATED ANNEALING REMARK 3 WITH ONLY DISTANCE CONSTRAINTS (249 1 INCLUDING 123 REMARK 3 INTERMOLECULAR) FOLLOWED BY A PERIOD OF REFINEMENT WHERE 110 REMARK 3 DIHEDRAL CONSTRAINTS DERIVED FROM J COUPLING ANALYSIS AND REMARK 3 PHOSPHORUS CHEMICAL SHIFT VALUE WERE ADDED (IN THE RNA ONLY). NO REMARK 3 DIHEDRAL ANGLE VIOLATIONS AND AN AVERAGE OF 4 NOE VIOLA TIONS REMARK 3 BETWEEN 0.2 - 0.5 A WERE FOUND IN THE 31 CONVERGED STRUCTURES. REMARK 4 REMARK 4 1AUD COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000171269. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : NULL REMARK 210 PH : NULL REMARK 210 IONIC STRENGTH : 50 MM NACL REMARK 210 PRESSURE : NULL REMARK 210 SAMPLE CONTENTS : NULL REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : NULL REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ; 600 MHZ REMARK 210 SPECTROMETER MODEL : AMX500; DMX600 REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : XPLOR 3.1 REMARK 210 METHOD USED : NULL REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 31 REMARK 210 CONFORMERS, SELECTION CRITERIA : LOWEST TOTAL ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL 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: B, 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 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 G B 19 N7 - C8 - N9 ANGL. DEV. = 4.6 DEGREES REMARK 500 1 G B 19 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 1 G B 20 N7 - C8 - N9 ANGL. DEV. = 4.6 DEGREES REMARK 500 1 G B 20 C8 - N9 - C4 ANGL. DEV. = -2.6 DEGREES REMARK 500 1 A B 22 N7 - C8 - N9 ANGL. DEV. = 3.8 DEGREES REMARK 500 1 G B 23 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 1 G B 23 C8 - N9 - C4 ANGL. DEV. = -2.6 DEGREES REMARK 500 1 A B 24 N7 - C8 - N9 ANGL. DEV. = 3.7 DEGREES REMARK 500 1 G B 25 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 1 G B 25 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 1 G B 34 N7 - C8 - N9 ANGL. DEV. = 4.6 DEGREES REMARK 500 1 G B 34 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 1 G B 35 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 1 G B 35 C8 - N9 - C4 ANGL. DEV. = -2.5 DEGREES REMARK 500 1 G B 36 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 1 G B 36 C8 - N9 - C4 ANGL. DEV. = -2.6 DEGREES REMARK 500 1 A B 37 N7 - C8 - N9 ANGL. DEV. = 3.7 DEGREES REMARK 500 1 A B 39 N7 - C8 - N9 ANGL. DEV. = 3.7 DEGREES REMARK 500 1 G B 42 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 1 G B 42 C8 - N9 - C4 ANGL. DEV. = -2.8 DEGREES REMARK 500 1 A B 44 N7 - C8 - N9 ANGL. DEV. = 3.7 DEGREES REMARK 500 1 G B 48 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 1 G B 48 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 2 G B 19 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 2 G B 19 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 2 G B 20 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 2 G B 20 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 2 A B 22 N7 - C8 - N9 ANGL. DEV. = 3.7 DEGREES REMARK 500 2 G B 23 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 2 G B 23 C8 - N9 - C4 ANGL. DEV. = -2.6 DEGREES REMARK 500 2 A B 24 N7 - C8 - N9 ANGL. DEV. = 3.7 DEGREES REMARK 500 2 G B 25 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 2 G B 25 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 2 G B 34 N7 - C8 - N9 ANGL. DEV. = 4.6 DEGREES REMARK 500 2 G B 34 C8 - N9 - C4 ANGL. DEV. = -2.6 DEGREES REMARK 500 2 G B 35 N7 - C8 - N9 ANGL. DEV. = 4.6 DEGREES REMARK 500 2 G B 35 C8 - N9 - C4 ANGL. DEV. = -2.6 DEGREES REMARK 500 2 G B 36 N7 - C8 - N9 ANGL. DEV. = 4.6 DEGREES REMARK 500 2 G B 36 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 2 A B 37 N7 - C8 - N9 ANGL. DEV. = 3.7 DEGREES REMARK 500 2 A B 39 N7 - C8 - N9 ANGL. DEV. = 3.7 DEGREES REMARK 500 2 G B 42 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 2 G B 42 C8 - N9 - C4 ANGL. DEV. = -2.8 DEGREES REMARK 500 2 A B 44 N7 - C8 - N9 ANGL. DEV. = 3.7 DEGREES REMARK 500 2 G B 48 N7 - C8 - N9 ANGL. DEV. = 4.5 DEGREES REMARK 500 2 G B 48 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 3 G B 19 N7 - C8 - N9 ANGL. DEV. = 4.6 DEGREES REMARK 500 3 G B 19 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 3 G B 20 N7 - C8 - N9 ANGL. DEV. = 4.6 DEGREES REMARK 500 3 G B 20 C8 - N9 - C4 ANGL. DEV. = -2.7 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 714 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 THR A 5 104.39 60.09 REMARK 500 1 LYS A 19 34.94 -149.51 REMARK 500 1 MET A 50 56.65 -94.10 REMARK 500 1 ARG A 51 47.56 -101.53 REMARK 500 1 PHE A 76 -59.73 -126.19 REMARK 500 1 TYR A 77 67.44 -118.98 REMARK 500 1 THR A 99 46.29 38.67 REMARK 500 1 PHE A 100 91.08 45.10 REMARK 500 2 GLU A 18 42.09 -105.50 REMARK 500 2 LYS A 19 34.91 -148.17 REMARK 500 2 ASP A 41 141.96 -173.17 REMARK 500 2 PHE A 76 -59.73 -123.59 REMARK 500 2 TYR A 77 65.66 -113.53 REMARK 500 2 TYR A 85 176.10 -51.00 REMARK 500 2 THR A 99 49.99 179.69 REMARK 500 3 GLU A 4 -178.72 -58.31 REMARK 500 3 GLU A 18 56.98 -101.96 REMARK 500 3 LYS A 19 32.58 -147.37 REMARK 500 3 ALA A 31 -70.41 -83.30 REMARK 500 3 ASP A 41 159.64 179.44 REMARK 500 3 ARG A 46 35.70 -146.55 REMARK 500 3 MET A 50 53.08 -96.44 REMARK 500 3 PHE A 76 -59.24 -122.63 REMARK 500 3 LYS A 79 142.52 -173.03 REMARK 500 3 ALA A 86 -172.76 -63.15 REMARK 500 3 THR A 99 74.41 40.16 REMARK 500 4 ARG A 6 153.52 62.73 REMARK 500 4 GLU A 18 59.32 -100.40 REMARK 500 4 LYS A 19 33.60 -148.51 REMARK 500 4 MET A 50 51.87 -107.41 REMARK 500 4 GLU A 60 156.47 71.69 REMARK 500 4 PHE A 76 -59.94 -129.68 REMARK 500 4 LYS A 79 140.91 -176.79 REMARK 500 4 TYR A 85 169.22 -47.91 REMARK 500 4 THR A 99 45.05 38.52 REMARK 500 4 PHE A 100 91.76 45.53 REMARK 500 5 GLU A 4 179.52 -57.34 REMARK 500 5 ASN A 15 71.67 71.16 REMARK 500 5 LYS A 19 38.42 -154.29 REMARK 500 5 ASP A 41 146.32 -179.98 REMARK 500 5 MET A 50 -52.01 -170.51 REMARK 500 5 PHE A 76 -61.19 -135.75 REMARK 500 5 TYR A 77 70.54 -115.99 REMARK 500 5 ALA A 86 179.71 -53.26 REMARK 500 5 THR A 99 49.24 -179.92 REMARK 500 5 PHE A 100 79.07 44.12 REMARK 500 6 ARG A 6 84.55 55.92 REMARK 500 6 THR A 10 110.82 -167.92 REMARK 500 6 GLU A 18 42.54 -101.27 REMARK 500 6 LYS A 19 33.93 -148.24 REMARK 500 REMARK 500 THIS ENTRY HAS 336 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 1 ARG A 6 0.31 SIDE CHAIN REMARK 500 1 ARG A 35 0.26 SIDE CHAIN REMARK 500 1 ARG A 46 0.32 SIDE CHAIN REMARK 500 1 ARG A 51 0.31 SIDE CHAIN REMARK 500 1 ARG A 69 0.25 SIDE CHAIN REMARK 500 1 ARG A 82 0.26 SIDE CHAIN REMARK 500 2 ARG A 6 0.31 SIDE CHAIN REMARK 500 2 ARG A 35 0.30 SIDE CHAIN REMARK 500 2 ARG A 46 0.31 SIDE CHAIN REMARK 500 2 ARG A 51 0.28 SIDE CHAIN REMARK 500 2 ARG A 69 0.25 SIDE CHAIN REMARK 500 2 ARG A 82 0.32 SIDE CHAIN REMARK 500 3 ARG A 6 0.28 SIDE CHAIN REMARK 500 3 ARG A 35 0.26 SIDE CHAIN REMARK 500 3 ARG A 46 0.29 SIDE CHAIN REMARK 500 3 ARG A 51 0.26 SIDE CHAIN REMARK 500 3 ARG A 69 0.31 SIDE CHAIN REMARK 500 3 ARG A 82 0.31 SIDE CHAIN REMARK 500 4 ARG A 6 0.30 SIDE CHAIN REMARK 500 4 ARG A 35 0.27 SIDE CHAIN REMARK 500 4 ARG A 46 0.22 SIDE CHAIN REMARK 500 4 ARG A 51 0.27 SIDE CHAIN REMARK 500 4 ARG A 69 0.32 SIDE CHAIN REMARK 500 4 ARG A 82 0.26 SIDE CHAIN REMARK 500 5 ARG A 6 0.26 SIDE CHAIN REMARK 500 5 ARG A 35 0.32 SIDE CHAIN REMARK 500 5 ARG A 46 0.22 SIDE CHAIN REMARK 500 5 ARG A 51 0.32 SIDE CHAIN REMARK 500 5 ARG A 69 0.32 SIDE CHAIN REMARK 500 5 ARG A 82 0.23 SIDE CHAIN REMARK 500 6 ARG A 6 0.31 SIDE CHAIN REMARK 500 6 ARG A 35 0.32 SIDE CHAIN REMARK 500 6 ARG A 46 0.27 SIDE CHAIN REMARK 500 6 ARG A 51 0.30 SIDE CHAIN REMARK 500 6 ARG A 69 0.31 SIDE CHAIN REMARK 500 6 ARG A 82 0.25 SIDE CHAIN REMARK 500 7 ARG A 6 0.21 SIDE CHAIN REMARK 500 7 ARG A 35 0.31 SIDE CHAIN REMARK 500 7 ARG A 46 0.29 SIDE CHAIN REMARK 500 7 ARG A 51 0.31 SIDE CHAIN REMARK 500 7 ARG A 69 0.24 SIDE CHAIN REMARK 500 7 ARG A 82 0.31 SIDE CHAIN REMARK 500 8 ARG A 6 0.25 SIDE CHAIN REMARK 500 8 ARG A 35 0.28 SIDE CHAIN REMARK 500 8 ARG A 46 0.24 SIDE CHAIN REMARK 500 8 ARG A 51 0.26 SIDE CHAIN REMARK 500 8 ARG A 69 0.21 SIDE CHAIN REMARK 500 8 ARG A 82 0.25 SIDE CHAIN REMARK 500 9 ARG A 6 0.31 SIDE CHAIN REMARK 500 9 ARG A 35 0.25 SIDE CHAIN REMARK 500 REMARK 500 THIS ENTRY HAS 187 PLANE DEVIATIONS. REMARK 500 REMARK 500 REMARK: NULL DBREF 1AUD A 1 101 UNP P09012 SNRPA_HUMAN 2 102 DBREF 1AUD B 19 50 PDB 1AUD 1AUD 19 50 SEQADV 1AUD HIS A 30 UNP P09012 TYR 31 ENGINEERED MUTATION SEQADV 1AUD ARG A 35 UNP P09012 GLN 36 ENGINEERED MUTATION SEQRES 1 B 30 G G C A G A G U C C U U C SEQRES 2 B 30 G G G A C A U U G C A C C SEQRES 3 B 30 U G C C SEQRES 1 A 101 ALA VAL PRO GLU THR ARG PRO ASN HIS THR ILE TYR ILE SEQRES 2 A 101 ASN ASN LEU ASN GLU LYS ILE LYS LYS ASP GLU LEU LYS SEQRES 3 A 101 LYS SER LEU HIS ALA ILE PHE SER ARG PHE GLY GLN ILE SEQRES 4 A 101 LEU ASP ILE LEU VAL SER ARG SER LEU LYS MET ARG GLY SEQRES 5 A 101 GLN ALA PHE VAL ILE PHE LYS GLU VAL SER SER ALA THR SEQRES 6 A 101 ASN ALA LEU ARG SER MET GLN GLY PHE PRO PHE TYR ASP SEQRES 7 A 101 LYS PRO MET ARG ILE GLN TYR ALA LYS THR ASP SER ASP SEQRES 8 A 101 ILE ILE ALA LYS MET LYS GLY THR PHE VAL HELIX 1 1 LEU A 25 ILE A 32 1 8 HELIX 2 2 GLU A 60 ARG A 69 1 10 HELIX 3 3 ASP A 91 LYS A 97 1 7 SHEET 1 A 3 GLN A 53 VAL A 56 0 SHEET 2 A 3 ILE A 11 ASN A 14 -1 N ILE A 13 O ALA A 54 SHEET 3 A 3 ILE A 83 TYR A 85 -1 N GLN A 84 O TYR A 12 SHEET 1 B 2 PHE A 74 PHE A 76 0 SHEET 2 B 2 LYS A 79 MET A 81 -1 N MET A 81 O PHE A 74 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