2H95 - Header Asymmetric Unit

HEADER MEMBRANE PROTEIN 08-JUN-06 2H95

TITLE STRUCTURE OF THE AMANTADINE-BLOCKED INFLUENZA A M2 PROTON TITLE 2 CHANNEL TRANS-MEMBRANE DOMAIN BY SOLID-STATE NMR TITLE 3 SPECTROSCOPY

COMPND MOL_ID: 1; COMPND 2 MOLECULE: MATRIX PROTEIN 2; COMPND 3 CHAIN: A, B, C, D; COMPND 4 FRAGMENT: TRANSMEMBRANE DOMAIN (RESIDUES 26-43); COMPND 5 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THE PEPTIDE WAS SYNTHESIZED USING SOLID SOURCE 4 PHASE PEPTIDE SYNTHESIS. THIS SEQUENCE OCCURS NATURALLY IN SOURCE 5 THE INFLUENZA A VIRUS (UDORN/72).

KEYWDS ALPHA HELIX, PROTEIN-LIGAND, MEMBRANE PROTEIN

EXPDTA SOLID-STATE NMR

AUTHOR J.HU,T.ASBURY,T.A.CROSS

REVDAT 3 24-FEB-09 2H95 1 VERSN REVDAT 2 26-JUN-07 2H95 1 JRNL REVDAT 1 24-APR-07 2H95 0

JRNL AUTH J.HU,T.ASBURY,S.ACHUTHAN,C.LI,R.BERTRAM,J.R.QUINE, JRNL AUTH 2 R.FU,T.A.CROSS JRNL TITL BACKBONE STRUCTURE OF THE AMANTADINE-BLOCKED JRNL TITL 2 TRANS-MEMBRANE DOMAIN M2 PROTON CHANNEL FROM JRNL TITL 3 INFLUENZA A VIRUS. JRNL REF BIOPHYS.J. V. 92 4335 2007 JRNL REFN ISSN 0006-3495 JRNL PMID 17384070 JRNL DOI 10.1529/BIOPHYSJ.106.090183

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : XPLOR-NIH 2.9.9 REMARK 3 AUTHORS : SCHWIETERS, KUSZEWSKI, TJANDRA, CLORE REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REFINEMENT WAS CARRIED OUT IN VACUO REMARK 3 ON INITIAL MONOMER COORDINATES CONSISTING OF TWO ALPHA-HELICAL REMARK 3 FRAGMENTS (3.6 RESIDUES PER TURN) HAVING TILT AND ROTATIONAL REMARK 3 ORIENTATIONS WITH RESPECT TO THE BILAYER DERIVED FROM PISEMA REMARK 3 DIPOLAR WAVE ANALYSIS. ENERGY MINIMIZATION USED A GLOBAL REMARK 3 PENALTY FUNCTION INCORPORATING ORIENTATIONAL RESTRAINTS, REMARK 3 HYDROGEN BONDING AND THE CHARMM EMPIRICAL FUNCTION. THE REMARK 3 ORIENTATIONAL RESTRAINTS IMPOSED ON THE STRUCTURE DURING REMARK 3 REFINEMENT ARE 16 15N CHEMICAL SHIFTS AND 16 15N-1H DIPOLAR REMARK 3 COUPLINGS FROM PISEMA EXPERIMENTS. A SYMMETRIC, TETRAMERIC REMARK 3 BUNDLE MODEL OF M2-TMD WAS CONSTRUCTED BY A SERIES OF RIGID- REMARK 3 BODY TRANSFORMATIONS OF THE REFINED M2-TMD MONOMER. THE REMARK 3 RESULTING HOMO-TETRAMER IS THE LOWEST FREE ENERGY CONFORMER REMARK 3 BASED ON ROTATIONAL CONFORMATIONAL SEARCH. NOTE THAT THE HIS37 REMARK 3 AND TRP41 SIDECHAIN POSITIONS ARE CONSISTENT WITH MEASURED REMARK 3 ORIENTATIONAL CONSTRAINTS. THE ROTAMERIC STATES OF OTHER REMARK 3 RESIDUES ARE TAKEN FROM A BACKBONE DEPENDENT SIDECHAIN ROTAMER REMARK 3 LIBRARY (SCRWL).

REMARK 4 REMARK 4 2H95 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-JUN-06. REMARK 100 THE RCSB ID CODE IS RCSB038085.

REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 308 REMARK 210 PH : 8.8 REMARK 210 IONIC STRENGTH : NULL REMARK 210 PRESSURE : AMBIENT REMARK 210 SAMPLE CONTENTS : M2-TMD (~120 MG) AND DMPC (~ REMARK 210 75 MG) WERE FIRST CO-DISSOLVED REMARK 210 IN 10 ML TFE, FOLLOWED BY THE REMARK 210 REMOVAL OF THE SOLVENT UNDER REMARK 210 VACUUM. THE PEPTIDE/LIPID REMARK 210 MIXTURE WAS REHYDRATED AND REMARK 210 SONICATED TO MAKE LIPOSOMES IN REMARK 210 A CITRATE-BORATE-PHOSPHATE REMARK 210 (CBP) BUFFER (PH 8.8) WITH 1 REMARK 210 MM EDTA AND 10 MM AMANTADINE REMARK 210 AT 310 K. THE LIPOSOMES WERE REMARK 210 PELLETED BY REMARK 210 ULTRACENTRIFUGATION . THEN THE REMARK 210 PELLET WAS SPREAD ON GLASS REMARK 210 SLIDES AND DEHYDRATED IN A 75% REMARK 210 HUMIDITY CHAMBER. THE REMARK 210 DEHYDRATED SLIDES WERE REMARK 210 REHYDRATED WITH 1.5 MICROL REMARK 210 LITER CBP BUFFER PER SLIDE REMARK 210 FOLLOWED BY BEING STACKED INTO REMARK 210 A GLASS TUBE AND INCUBATED AT REMARK 210 316 K FOR 24 HOURS IN 96% REMARK 210 RELATIVE HUMIDITY. FINALLY, REMARK 210 THE GLASS TUBE WAS SEALED AT REMARK 210 BOTH ENDS WITH EPOXY AND TWO REMARK 210 GLASSCAPS. REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : SOLID-STATE NMR PISEMA REMARK 210 SPECTROMETER FIELD STRENGTH : 400 MHZ REMARK 210 SPECTROMETER MODEL : AVANCE REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NULL REMARK 210 METHOD USED : ENERGY MINIMIZATION WITH REMARK 210 ORIENTATIONAL CONSTRAINTS REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 72 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 1 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 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.

DBREF 2H95 A 26 43 UNP P35938 M2_IAUSS 26 43 DBREF 2H95 B 26 43 UNP P35938 M2_IAUSS 26 43 DBREF 2H95 C 26 43 UNP P35938 M2_IAUSS 26 43 DBREF 2H95 D 26 43 UNP P35938 M2_IAUSS 26 43

SEQRES 1 A 18 LEU VAL VAL ALA ALA SER ILE ILE GLY ILE LEU HIS LEU SEQRES 2 A 18 ILE LEU TRP ILE LEU SEQRES 1 B 18 LEU VAL VAL ALA ALA SER ILE ILE GLY ILE LEU HIS LEU SEQRES 2 B 18 ILE LEU TRP ILE LEU SEQRES 1 C 18 LEU VAL VAL ALA ALA SER ILE ILE GLY ILE LEU HIS LEU SEQRES 2 C 18 ILE LEU TRP ILE LEU SEQRES 1 D 18 LEU VAL VAL ALA ALA SER ILE ILE GLY ILE LEU HIS LEU SEQRES 2 D 18 ILE LEU TRP ILE LEU

HELIX 1 1 LEU A 26 LEU A 43 1 18 HELIX 2 2 LEU B 26 LEU B 43 1 18 HELIX 3 3 LEU C 26 LEU C 43 1 18 HELIX 4 4 LEU D 26 LEU D 43 1 18

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