PDB Short entry for 1MP6 HEADER MEMBRANE PROTEIN 11-SEP-02 1MP6 TITLE STRUCTURE OF THE TRANSMEMBRANE REGION OF THE M2 PROTEIN H+ CHANNEL BY TITLE 2 SOLID STATE NMR SPECTROSCOPY COMPND MOL_ID: 1; COMPND 2 MOLECULE: MATRIX PROTEIN M2; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: TRANSMEMBRANE PEPTIDE (RESIDUES 22-46); COMPND 5 SYNONYM: M2 PROTEIN; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THIS SEQUENCE OCCURS NATURALLY IN THE INFLUENZA A SOURCE 4 VIRUS (UDORN/72 STRAIN). THE M2 TRANSMEMBRANE PEPTIDE WAS SOURCE 5 SYNTHESIZED USING SOLID PHASE PEPTIDE SYNTHESIS. KEYWDS INFLUENZA A VIRUS, MEMBRANE PROTEIN STRUCTURE, M2 PROTON CHANNEL, KEYWDS 2 SOLID STATE NMR, MEMBRANE PROTEIN EXPDTA SOLID-STATE NMR AUTHOR J.WANG,S.KIM,F.KOVACS,T.A.CROSS REVDAT 3 23-FEB-22 1MP6 1 REMARK REVDAT 2 24-FEB-09 1MP6 1 VERSN REVDAT 1 25-SEP-02 1MP6 0 JRNL AUTH J.WANG,S.KIM,F.KOVACS,T.A.CROSS JRNL TITL STRUCTURE OF THE TRANSMEMBRANE REGION OF THE M2 PROTEIN H(+) JRNL TITL 2 CHANNEL. JRNL REF PROTEIN SCI. V. 10 2241 2001 JRNL REFN ISSN 0961-8368 JRNL PMID 11604531 JRNL DOI 10.1110/PS.17901 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH F.KOVACS,J.K.DENNY,Z.SONG,J.R.QUINE,T.A.CROSS REMARK 1 TITL HELIX TILT OF THE M2 TRANSMEMBRANE PEPTIDE FROM INFLUENZA A REMARK 1 TITL 2 VIRUS: AN INTRINSIC PROPERTY. REMARK 1 REF J.MOL.BIOL. V. 295 117 2000 REMARK 1 REFN ISSN 0022-2836 REMARK 1 DOI 10.1006/JMBI.1999.3322 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TORC V5.4 REMARK 3 AUTHORS : KETCHEM,ROUX,CROSS REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THE REFINED M2-TMP MONOMER STRUCTURE REMARK 3 WAS OBTAINED BY A GEOMETRICAL SEARCH USING A SEARCH ALGORITHM TO REMARK 3 OBTAIN A MINIMUM OF THE GLOBAL PENALTY FUNCTION THAT REMARK 3 INCORPORATES ALL THE ORIENTATIONAL RESTRAINTS AND THE CHARMM REMARK 3 EMPIRICAL FUNCTION. THE ORIENTATIONAL RESTRAINTS IMPOSED ON THE REMARK 3 STRUCTURE DURING REFINEMENT ARE 15 15N CHEMICAL SHIFTS AND 15 REMARK 3 15N-1H DIPOLAR COUPLINGS FROM PISEMA EXPERIMENTS. THE OBSERVED REMARK 3 CHEMICAL SHIFTS ARE COMPARED TO CALCULATED VALUES FROM THE REMARK 3 MOLECULAR COORDINATES AND THE KNOWN TENSOR ELEMENT MAGNITUDES REMARK 3 AND ASSUMED TENSOR ORIENTATIONS. THE REFINEMENT WAS CARRIED OUT REMARK 3 IN VACUO WITH THE INITIAL COORDINATES OF AN IDEAL A-HELIX REMARK 3 STRUCTURE (3.6 RESIDUES PER TURN) HAVING A RANGE OF TILT AND REMARK 3 ROTATIONAL ORIENTATIONS WITH RESPECT TO THE BILAYER SPANNING THE REMARK 3 VALUES OBTAINED FROM THE PISA WHEELS. REMARK 4 REMARK 4 1MP6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-SEP-02. REMARK 100 THE DEPOSITION ID IS D_1000017074. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 303.00 REMARK 210 PH : 7.0 REMARK 210 IONIC STRENGTH : NONE REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : ORIENTED SAMPLES OF THE PEPTIDE REMARK 210 IN HYDRATED LIPID BILAYERS WERE REMARK 210 PREPARED BY FIRST CO-DISSOLVING REMARK 210 M2-TMP AND REMARK 210 DIMYRISTOYLPHOSPHATIDYLCHOLINE (D REMARK 210 MPC) IN TRIFLUOROETHANOL (TFE). REMARK 210 THE SOLUTION WAS THEN SPREAD REMARK 210 ONTO APPROXIMATELY 60 GLASS REMARK 210 PLATES. AFTER VACUUM DRYING TO REMARK 210 REMOVE TFE, 2 MICROLITERS OF REMARK 210 STERILE-FILTERED WATER WAS ADDED REMARK 210 TO EACH PLATE, AND THE PLATES REMARK 210 WERE THEN STACKED INTO A GLASS REMARK 210 TUBE AND PLACED IN A CHAMBER REMARK 210 CONTAINING A SATURATED SOLUTION REMARK 210 OF K2SO4 FOR HYDRATION. REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : SOLID STATE NMR PISEMA REMARK 210 SPECTROMETER FIELD STRENGTH : 400 MHZ REMARK 210 SPECTROMETER MODEL : CHEMAGNETICS REMARK 210 SPECTROMETER MANUFACTURER : HOME-BUILT REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NULL REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 30 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 1 REMARK 210 CONFORMERS, SELECTION CRITERIA : THE LOWEST ENERGY CONFORMER WITH REMARK 210 BACKBONE AND C BETA ATOMS IS REMARK 210 DEPOSITED, PREFERRED ROTAMERIC REMARK 210 STATES OF SIDE CHAINS WERE USED REMARK 210 DURING THE BACKBONE STRUCTURE REMARK 210 REFINEMENT BUT THE SIDE CHAIN REMARK 210 ATOMS WERE NOT INCLUDED IN THE REMARK 210 PDB FILE. REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: 15N CHEMICAL SHIFT, 1H-15N DIPOLAR COUPLING FREQUENCIES REMARK 210 WERE MEASURED FROM SOLID STATE NMR PISEMA EXPERIMENT REMARK 217 REMARK 217 SOLID STATE NMR STUDY REMARK 217 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLID REMARK 217 STATE NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 217 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 217 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: 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 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (RES=RESIDUE NAME; REMARK 470 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 470 RES CSSEQI ATOMS REMARK 470 SER A 22 OG REMARK 470 SER A 23 OG REMARK 470 ASP A 24 CG OD1 OD2 REMARK 470 PRO A 25 CG CD REMARK 470 LEU A 26 CG CD1 CD2 REMARK 470 VAL A 27 CG1 CG2 REMARK 470 VAL A 28 CG1 CG2 REMARK 470 SER A 31 OG REMARK 470 ILE A 32 CG1 CG2 CD1 REMARK 470 ILE A 33 CG1 CG2 CD1 REMARK 470 ILE A 35 CG1 CG2 CD1 REMARK 470 LEU A 36 CG CD1 CD2 REMARK 470 HIS A 37 CG ND1 CD2 CE1 NE2 REMARK 470 LEU A 38 CG CD1 CD2 REMARK 470 ILE A 39 CG1 CG2 CD1 REMARK 470 LEU A 40 CG CD1 CD2 REMARK 470 TRP A 41 CG CD1 CD2 NE1 CE2 CE3 CZ2 REMARK 470 TRP A 41 CZ3 CH2 REMARK 470 ILE A 42 CG1 CG2 CD1 REMARK 470 LEU A 43 CG CD1 CD2 REMARK 470 ASP A 44 CG OD1 OD2 REMARK 470 ARG A 45 CG CD NE CZ NH1 NH2 REMARK 470 LEU A 46 CG CD1 CD2 DBREF 1MP6 A 22 46 UNP P03490 VMT2_IAUDO 22 46 SEQRES 1 A 25 SER SER ASP PRO LEU VAL VAL ALA ALA SER ILE ILE GLY SEQRES 2 A 25 ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP ARG LEU HELIX 1 1 SER A 22 LEU A 46 1 25 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