HEADER MEMBRANE PROTEIN 17-JUL-25 9S15 TITLE MSPA-M2 IN A POPC NANODISC COMPND MOL_ID: 1; COMPND 2 MOLECULE: PORIN MSPA; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES; COMPND 6 OTHER_DETAILS: MUTANT M2 PROTEIN OF MSPA SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MYCOLICIBACTERIUM SMEGMATIS MC2 155; SOURCE 3 ORGANISM_TAXID: 246196; SOURCE 4 GENE: MSPA, MSMEG_0965, MSMEI_0939; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_VARIANT: GOLD; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET28A+ KEYWDS NANOPORE, LIPID, PORE, OCTAMER, CHANNEL, MEMBRANE PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR M.ASHWORTH,O.W.BAYFIELD,O.W.NOBLE,M.J.PLEVIN,A.A.ANTSON REVDAT 1 07-OCT-26 9S15 0 JRNL AUTH M.ASHWORTH,O.W.BAYFIELD,O.W.NOBLE,M.J.PLEVIN,A.A.ANTSON JRNL TITL M2-MSPA IN A POPC NANODISC JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 2.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : RELION, EPU, RELION, RELION, RELION, REMARK 3 RELION, CRYOSPARC REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : NULL REMARK 3 REFINEMENT SPACE : NULL REMARK 3 REFINEMENT PROTOCOL : NULL REMARK 3 REFINEMENT TARGET : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE : NULL REMARK 3 REMARK 3 FITTING PROCEDURE : NULL REMARK 3 REMARK 3 EM IMAGE RECONSTRUCTION STATISTICS REMARK 3 NOMINAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 ACTUAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 EFFECTIVE RESOLUTION (ANGSTROMS) : 2.800 REMARK 3 NUMBER OF PARTICLES : 82082 REMARK 3 CTF CORRECTION METHOD : PHASE FLIPPING AND AMPLITUDE REMARK 3 CORRECTION REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: NULL REMARK 4 REMARK 4 9S15 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 17-JUL-25. REMARK 100 THE DEPOSITION ID IS D_1292149398. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : SINGLE PARTICLE REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : PARTICLE REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : OCTAMERIC COMPLEX OF THE M2 REMARK 245 MUTANT OF MSPA, EMBEDDED IN A REMARK 245 LIPID NANODISC REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 0.15 REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 7.80 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : 3565 REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : TFS GLACIOS REMARK 245 DETECTOR TYPE : FEI FALCON IV (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 400.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 1800.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : 2.70 REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 5000.00 REMARK 245 ILLUMINATION MODE : FLOOD BEAM REMARK 245 NOMINAL MAGNIFICATION : 240000 REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 200 REMARK 245 IMAGING DETAILS : NULL REMARK 247 REMARK 247 ELECTRON MICROSCOPY REMARK 247 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM ELECTRON REMARK 247 MICROSCOPY DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE REMARK 247 THAT CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES REMARK 247 ON THESE RECORDS ARE MEANINGLESS EXCEPT FOR THE CALCULATION REMARK 247 OF THE STRUCTURE FACTORS. 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: OCTAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: OCTAMERIC REMARK 350 SOFTWARE USED: PISA 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 350 BIOMT1 2 0.707107 -0.707107 0.000000 146.97884 REMARK 350 BIOMT2 2 0.707107 0.707107 0.000000 -60.88063 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 3 0.000000 -1.000000 0.000000 293.95767 REMARK 350 BIOMT2 3 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 4 -0.707107 -0.707107 0.000000 354.83830 REMARK 350 BIOMT2 4 0.707107 -0.707107 0.000000 146.97884 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 5 -1.000000 0.000000 0.000000 293.95767 REMARK 350 BIOMT2 5 0.000000 -1.000000 0.000000 293.95767 REMARK 350 BIOMT3 5 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 6 -0.707107 0.707107 0.000000 146.97884 REMARK 350 BIOMT2 6 -0.707107 -0.707107 0.000000 354.83830 REMARK 350 BIOMT3 6 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 7 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT2 7 -1.000000 0.000000 0.000000 293.95767 REMARK 350 BIOMT3 7 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 8 0.707107 0.707107 0.000000 -60.88063 REMARK 350 BIOMT2 8 -0.707107 0.707107 0.000000 146.97884 REMARK 350 BIOMT3 8 0.000000 0.000000 1.000000 0.00000 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 LEU A 8 119.27 -160.84 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-54442 RELATED DB: EMDB REMARK 900 MSPA-M2 IN A POPC NANODISC DBREF 9S15 A 1 184 UNP A0QR29 MSPA_MYCS2 28 211 SEQADV 9S15 ASN A 90 UNP A0QR29 ASP 117 ENGINEERED MUTATION SEQADV 9S15 ASN A 91 UNP A0QR29 ASP 118 ENGINEERED MUTATION SEQADV 9S15 ASN A 93 UNP A0QR29 ASP 120 ENGINEERED MUTATION SEQADV 9S15 ARG A 118 UNP A0QR29 ASP 145 ENGINEERED MUTATION SEQADV 9S15 ARG A 134 UNP A0QR29 ASP 161 ENGINEERED MUTATION SEQADV 9S15 LYS A 139 UNP A0QR29 GLU 166 ENGINEERED MUTATION SEQRES 1 A 184 GLY LEU ASP ASN GLU LEU SER LEU VAL ASP GLY GLN ASP SEQRES 2 A 184 ARG THR LEU THR VAL GLN GLN TRP ASP THR PHE LEU ASN SEQRES 3 A 184 GLY VAL PHE PRO LEU ASP ARG ASN ARG LEU THR ARG GLU SEQRES 4 A 184 TRP PHE HIS SER GLY ARG ALA LYS TYR ILE VAL ALA GLY SEQRES 5 A 184 PRO GLY ALA ASP GLU PHE GLU GLY THR LEU GLU LEU GLY SEQRES 6 A 184 TYR GLN ILE GLY PHE PRO TRP SER LEU GLY VAL GLY ILE SEQRES 7 A 184 ASN PHE SER TYR THR THR PRO ASN ILE LEU ILE ASN ASN SEQRES 8 A 184 GLY ASN ILE THR ALA PRO PRO PHE GLY LEU ASN SER VAL SEQRES 9 A 184 ILE THR PRO ASN LEU PHE PRO GLY VAL SER ILE SER ALA SEQRES 10 A 184 ARG LEU GLY ASN GLY PRO GLY ILE GLN GLU VAL ALA THR SEQRES 11 A 184 PHE SER VAL ARG VAL SER GLY ALA LYS GLY GLY VAL ALA SEQRES 12 A 184 VAL SER ASN ALA MHS GLY THR VAL THR GLY ALA ALA GLY SEQRES 13 A 184 GLY VAL LEU LEU ARG PRO PHE ALA ARG LEU ILE ALA SER SEQRES 14 A 184 THR GLY ASP SER VAL THR THR TYR GLY GLU PRO TRP ASN SEQRES 15 A 184 MET ASN MODRES 9S15 MHS A 148 HIS MODIFIED RESIDUE HET MHS A 148 11 HET D12 A 201 12 HET MYS A 202 15 HET D12 A 203 12 HET D12 A 204 12 HETNAM MHS N1-METHYLATED HISTIDINE HETNAM D12 DODECANE HETNAM MYS PENTADECANE FORMUL 1 MHS C7 H11 N3 O2 FORMUL 2 D12 3(C12 H26) FORMUL 3 MYS C15 H32 FORMUL 6 HOH *100(H2 O) SHEET 1 AA1 4 LEU A 2 VAL A 9 0 SHEET 2 AA1 4 THR A 15 VAL A 28 -1 O GLN A 20 N ASP A 3 SHEET 3 AA1 4 ARG A 38 ALA A 51 -1 O PHE A 41 N ASN A 26 SHEET 4 AA1 4 LYS A 139 VAL A 151 -1 O VAL A 144 N GLY A 44 SHEET 1 AA2 4 ILE A 125 SER A 136 0 SHEET 2 AA2 4 GLU A 59 GLY A 69 -1 N TYR A 66 O VAL A 128 SHEET 3 AA2 4 LEU A 159 ALA A 168 -1 O ARG A 161 N GLN A 67 SHEET 4 AA2 4 SER A 173 TYR A 177 -1 O VAL A 174 N LEU A 166 SHEET 1 AA3 4 ILE A 125 SER A 136 0 SHEET 2 AA3 4 GLU A 59 GLY A 69 -1 N TYR A 66 O VAL A 128 SHEET 3 AA3 4 LEU A 159 ALA A 168 -1 O ARG A 161 N GLN A 67 SHEET 4 AA3 4 TRP A 181 ASN A 182 -1 O TRP A 181 N LEU A 160 SHEET 1 AA4 3 GLY A 112 ASN A 121 0 SHEET 2 AA4 3 TRP A 72 SER A 81 -1 N SER A 81 O GLY A 112 SHEET 3 AA4 3 ALA A 154 ALA A 155 -1 O ALA A 155 N TRP A 72 SHEET 1 AA5 2 LEU A 88 ILE A 89 0 SHEET 2 AA5 2 VAL A 104 ILE A 105 -1 O ILE A 105 N LEU A 88 LINK C ALA A 147 N MHS A 148 1555 1555 1.33 LINK C MHS A 148 N GLY A 149 1555 1555 1.33 CISPEP 1 PRO A 97 PRO A 98 0 0.63 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 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 CONECT 1109 1112 CONECT 1112 1109 1113 CONECT 1113 1112 1114 1116 CONECT 1114 1113 1115 1123 CONECT 1115 1114 CONECT 1116 1113 1117 CONECT 1117 1116 1118 1119 CONECT 1118 1117 1120 1122 CONECT 1119 1117 1121 CONECT 1120 1118 1121 CONECT 1121 1119 1120 CONECT 1122 1118 CONECT 1123 1114 CONECT 1383 1384 CONECT 1384 1383 1385 CONECT 1385 1384 1386 CONECT 1386 1385 1387 CONECT 1387 1386 1388 CONECT 1388 1387 1389 CONECT 1389 1388 1390 CONECT 1390 1389 1391 CONECT 1391 1390 1392 CONECT 1392 1391 1393 CONECT 1393 1392 1394 CONECT 1394 1393 CONECT 1395 1396 CONECT 1396 1395 1397 CONECT 1397 1396 1398 CONECT 1398 1397 1399 CONECT 1399 1398 1400 CONECT 1400 1399 1401 CONECT 1401 1400 1402 CONECT 1402 1401 1403 CONECT 1403 1402 1404 CONECT 1404 1403 1405 CONECT 1405 1404 1406 CONECT 1406 1405 1407 CONECT 1407 1406 1408 CONECT 1408 1407 1409 CONECT 1409 1408 CONECT 1410 1411 CONECT 1411 1410 1412 CONECT 1412 1411 1413 CONECT 1413 1412 1414 CONECT 1414 1413 1415 CONECT 1415 1414 1416 CONECT 1416 1415 1417 CONECT 1417 1416 1418 CONECT 1418 1417 1419 CONECT 1419 1418 1420 CONECT 1420 1419 1421 CONECT 1421 1420 CONECT 1422 1423 CONECT 1423 1422 1424 CONECT 1424 1423 1425 CONECT 1425 1424 1426 CONECT 1426 1425 1427 CONECT 1427 1426 1428 CONECT 1428 1427 1429 CONECT 1429 1428 1430 CONECT 1430 1429 1431 CONECT 1431 1430 1432 CONECT 1432 1431 1433 CONECT 1433 1432 MASTER 141 0 5 0 17 0 0 6 1532 1 64 15 END