HEADER PROTEIN FIBRIL 15-MAY-24 9BTQ TITLE CRYO-EM STRUCTURE OF EXTRACELLULAR TUBE FROM MICROCYSTIS AERUGINOSA TITLE 2 PCC 7806SL COMPND MOL_ID: 1; COMPND 2 MOLECULE: PILIN; COMPND 3 CHAIN: A SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MICROCYSTIS AERUGINOSA PCC 7806SL; SOURCE 3 ORGANISM_TAXID: 1903187 KEYWDS EXTRACELLULAR TUBE, FILAMENT, PILI, HELICAL SYMMETRY, PROTEIN FIBRIL EXPDTA ELECTRON MICROSCOPY AUTHOR H.A.PETERSEN,J.G.RICCA,J.W.LOUDA,F.WANG REVDAT 2 17-SEP-25 9BTQ 1 JRNL REVDAT 1 14-MAY-25 9BTQ 0 JRNL AUTH J.G.RICCA,H.A.PETERSEN,A.GROSVIRT-DRAMEN,X.MAYALI, JRNL AUTH 2 S.H.NAYLON,B.G.DUERSCH,C.P.DUFRESNE,P.K.WEBER,R.R.SONANI, JRNL AUTH 3 P.E.PREVELIGE,A.I.HOCHBAUM,V.MERK,J.W.LOUDA,F.WANG JRNL TITL A FAMILY OF TUBULAR PILI FROM HARMFUL ALGAL BLOOM FORMING JRNL TITL 2 CYANOBACTERIUM MICROCYSTIS AERUGINOSA. JRNL REF NAT COMMUN V. 16 8082 2025 JRNL REFN ESSN 2041-1723 JRNL PMID 40883291 JRNL DOI 10.1038/S41467-025-63379-1 REMARK 2 REMARK 2 RESOLUTION. 2.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : PHENIX 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) : 2.400 REMARK 3 NUMBER OF PARTICLES : 187546 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 9BTQ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-MAY-24. REMARK 100 THE DEPOSITION ID IS D_1000284061. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : HELICAL REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : FILAMENT REMARK 245 PARTICLE TYPE : HELICAL REMARK 245 NAME OF SAMPLE : PILI FILAMENTS REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : NULL REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 7.40 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : NULL REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : TFS KRIOS REMARK 245 DETECTOR TYPE : GATAN K3 (6K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 1000.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 2000.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL 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 : NULL REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 300 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 300 THE ASSEMBLY REPRESENTED IN THIS ENTRY HAS REGULAR REMARK 300 HELICAL SYMMETRY WITH THE FOLLOWING PARAMETERS: REMARK 300 ROTATION PER SUBUNIT (TWIST) = -14.74 DEGREES REMARK 300 RISE PER SUBUNIT (HEIGHT) = 3.65 ANGSTROMS 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 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 0.418501 0.908216 0.000000 0.00000 REMARK 350 BIOMT2 1 -0.908216 0.418501 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 -72.96000 REMARK 350 BIOMT1 2 0.173700 0.984799 0.000000 0.00000 REMARK 350 BIOMT2 2 -0.984799 0.173700 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 -69.31200 REMARK 350 BIOMT1 3 -0.082530 0.996589 0.000000 0.00000 REMARK 350 BIOMT2 3 -0.996589 -0.082530 0.000000 0.00000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 -65.66400 REMARK 350 BIOMT1 4 -0.333330 0.942810 0.000000 0.00000 REMARK 350 BIOMT2 4 -0.942810 -0.333330 0.000000 0.00000 REMARK 350 BIOMT3 4 0.000000 0.000000 1.000000 -62.01600 REMARK 350 BIOMT1 5 -0.562199 0.827002 0.000000 0.00000 REMARK 350 BIOMT2 5 -0.827002 -0.562199 0.000000 0.00000 REMARK 350 BIOMT3 5 0.000000 0.000000 1.000000 -58.36800 REMARK 350 BIOMT1 6 -0.754079 0.656783 0.000000 0.00000 REMARK 350 BIOMT2 6 -0.656783 -0.754079 0.000000 0.00000 REMARK 350 BIOMT3 6 0.000000 0.000000 1.000000 -54.72000 REMARK 350 BIOMT1 7 -0.896347 0.443353 0.000000 0.00000 REMARK 350 BIOMT2 7 -0.443353 -0.896347 0.000000 0.00000 REMARK 350 BIOMT3 7 0.000000 0.000000 1.000000 -51.07200 REMARK 350 BIOMT1 8 -0.979642 0.200753 0.000000 0.00000 REMARK 350 BIOMT2 8 -0.200753 -0.979642 0.000000 0.00000 REMARK 350 BIOMT3 8 0.000000 0.000000 1.000000 -47.42400 REMARK 350 BIOMT1 9 -0.998483 -0.055055 0.000000 0.00000 REMARK 350 BIOMT2 9 0.055055 -0.998483 0.000000 0.00000 REMARK 350 BIOMT3 9 0.000000 0.000000 1.000000 -43.77600 REMARK 350 BIOMT1 10 -0.951632 -0.307240 0.000000 0.00000 REMARK 350 BIOMT2 10 0.307240 -0.951632 0.000000 0.00000 REMARK 350 BIOMT3 10 0.000000 0.000000 1.000000 -40.12800 REMARK 350 BIOMT1 11 -0.842170 -0.539212 0.000000 0.00000 REMARK 350 BIOMT2 11 0.539212 -0.842170 0.000000 0.00000 REMARK 350 BIOMT3 11 0.000000 0.000000 1.000000 -36.48000 REMARK 350 BIOMT1 12 -0.677300 -0.735707 0.000000 0.00000 REMARK 350 BIOMT2 12 0.735707 -0.677300 0.000000 0.00000 REMARK 350 BIOMT3 12 0.000000 0.000000 1.000000 -32.83200 REMARK 350 BIOMT1 13 -0.467868 -0.883798 0.000000 0.00000 REMARK 350 BIOMT2 13 0.883798 -0.467868 0.000000 0.00000 REMARK 350 BIOMT3 13 0.000000 0.000000 1.000000 -29.18400 REMARK 350 BIOMT1 14 -0.227654 -0.973742 0.000000 0.00000 REMARK 350 BIOMT2 14 0.973742 -0.227654 0.000000 0.00000 REMARK 350 BIOMT3 14 0.000000 0.000000 1.000000 -25.53600 REMARK 350 BIOMT1 15 0.027538 -0.999621 0.000000 0.00000 REMARK 350 BIOMT2 15 0.999621 0.027538 0.000000 0.00000 REMARK 350 BIOMT3 15 0.000000 0.000000 1.000000 -21.88800 REMARK 350 BIOMT1 16 0.280918 -0.959732 0.000000 0.00000 REMARK 350 BIOMT2 16 0.959732 0.280918 0.000000 0.00000 REMARK 350 BIOMT3 16 0.000000 0.000000 1.000000 -18.24000 REMARK 350 BIOMT1 17 0.515816 -0.856700 0.000000 0.00000 REMARK 350 BIOMT2 17 0.856700 0.515816 0.000000 0.00000 REMARK 350 BIOMT3 17 0.000000 0.000000 1.000000 -14.59200 REMARK 350 BIOMT1 18 0.716777 -0.697303 0.000000 0.00000 REMARK 350 BIOMT2 18 0.697303 0.716777 0.000000 0.00000 REMARK 350 BIOMT3 18 0.000000 0.000000 1.000000 -10.94400 REMARK 350 BIOMT1 19 0.870579 -0.492029 0.000000 0.00000 REMARK 350 BIOMT2 19 0.492029 0.870579 0.000000 0.00000 REMARK 350 BIOMT3 19 0.000000 0.000000 1.000000 -7.29600 REMARK 350 BIOMT1 20 0.967104 -0.254383 0.000000 0.00000 REMARK 350 BIOMT2 20 0.254383 0.967104 0.000000 0.00000 REMARK 350 BIOMT3 20 0.000000 0.000000 1.000000 -3.64800 REMARK 350 BIOMT1 21 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 21 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 21 0.000000 0.000000 1.000000 0.00000 REMARK 350 BIOMT1 22 0.967104 0.254383 0.000000 0.00000 REMARK 350 BIOMT2 22 -0.254383 0.967104 0.000000 0.00000 REMARK 350 BIOMT3 22 0.000000 0.000000 1.000000 3.64800 REMARK 350 BIOMT1 23 0.870579 0.492029 0.000000 0.00000 REMARK 350 BIOMT2 23 -0.492029 0.870579 0.000000 0.00000 REMARK 350 BIOMT3 23 0.000000 0.000000 1.000000 7.29600 REMARK 350 BIOMT1 24 0.716777 0.697303 0.000000 0.00000 REMARK 350 BIOMT2 24 -0.697303 0.716777 0.000000 0.00000 REMARK 350 BIOMT3 24 0.000000 0.000000 1.000000 10.94400 REMARK 350 BIOMT1 25 0.515816 0.856700 0.000000 0.00000 REMARK 350 BIOMT2 25 -0.856700 0.515816 0.000000 0.00000 REMARK 350 BIOMT3 25 0.000000 0.000000 1.000000 14.59200 REMARK 350 BIOMT1 26 0.280918 0.959732 0.000000 0.00000 REMARK 350 BIOMT2 26 -0.959732 0.280918 0.000000 0.00000 REMARK 350 BIOMT3 26 0.000000 0.000000 1.000000 18.24000 REMARK 350 BIOMT1 27 0.027538 0.999621 0.000000 0.00000 REMARK 350 BIOMT2 27 -0.999621 0.027538 0.000000 0.00000 REMARK 350 BIOMT3 27 0.000000 0.000000 1.000000 21.88800 REMARK 350 BIOMT1 28 -0.227654 0.973742 0.000000 0.00000 REMARK 350 BIOMT2 28 -0.973742 -0.227654 0.000000 0.00000 REMARK 350 BIOMT3 28 0.000000 0.000000 1.000000 25.53600 REMARK 350 BIOMT1 29 -0.467868 0.883798 0.000000 0.00000 REMARK 350 BIOMT2 29 -0.883798 -0.467868 0.000000 0.00000 REMARK 350 BIOMT3 29 0.000000 0.000000 1.000000 29.18400 REMARK 350 BIOMT1 30 -0.677300 0.735707 0.000000 0.00000 REMARK 350 BIOMT2 30 -0.735707 -0.677300 0.000000 0.00000 REMARK 350 BIOMT3 30 0.000000 0.000000 1.000000 32.83200 REMARK 350 BIOMT1 31 -0.842170 0.539212 0.000000 0.00000 REMARK 350 BIOMT2 31 -0.539212 -0.842170 0.000000 0.00000 REMARK 350 BIOMT3 31 0.000000 0.000000 1.000000 36.48000 REMARK 350 BIOMT1 32 -0.951632 0.307240 0.000000 0.00000 REMARK 350 BIOMT2 32 -0.307240 -0.951632 0.000000 0.00000 REMARK 350 BIOMT3 32 0.000000 0.000000 1.000000 40.12800 REMARK 350 BIOMT1 33 -0.998483 0.055055 0.000000 0.00000 REMARK 350 BIOMT2 33 -0.055055 -0.998483 0.000000 0.00000 REMARK 350 BIOMT3 33 0.000000 0.000000 1.000000 43.77600 REMARK 350 BIOMT1 34 -0.979642 -0.200753 0.000000 0.00000 REMARK 350 BIOMT2 34 0.200753 -0.979642 0.000000 0.00000 REMARK 350 BIOMT3 34 0.000000 0.000000 1.000000 47.42400 REMARK 350 BIOMT1 35 -0.896347 -0.443353 0.000000 0.00000 REMARK 350 BIOMT2 35 0.443353 -0.896347 0.000000 0.00000 REMARK 350 BIOMT3 35 0.000000 0.000000 1.000000 51.07200 REMARK 350 BIOMT1 36 -0.754079 -0.656783 0.000000 0.00000 REMARK 350 BIOMT2 36 0.656783 -0.754079 0.000000 0.00000 REMARK 350 BIOMT3 36 0.000000 0.000000 1.000000 54.72000 REMARK 350 BIOMT1 37 -0.562199 -0.827002 0.000000 0.00000 REMARK 350 BIOMT2 37 0.827002 -0.562199 0.000000 0.00000 REMARK 350 BIOMT3 37 0.000000 0.000000 1.000000 58.36800 REMARK 350 BIOMT1 38 -0.333330 -0.942810 0.000000 0.00000 REMARK 350 BIOMT2 38 0.942810 -0.333330 0.000000 0.00000 REMARK 350 BIOMT3 38 0.000000 0.000000 1.000000 62.01600 REMARK 350 BIOMT1 39 -0.082530 -0.996589 0.000000 0.00000 REMARK 350 BIOMT2 39 0.996589 -0.082530 0.000000 0.00000 REMARK 350 BIOMT3 39 0.000000 0.000000 1.000000 65.66400 REMARK 350 BIOMT1 40 0.173700 -0.984799 0.000000 0.00000 REMARK 350 BIOMT2 40 0.984799 0.173700 0.000000 0.00000 REMARK 350 BIOMT3 40 0.000000 0.000000 1.000000 69.31200 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 MET A 1 REMARK 465 LYS A 2 REMARK 465 ALA A 3 REMARK 465 SER A 4 REMARK 465 ASN A 5 REMARK 465 TYR A 6 REMARK 465 GLN A 7 REMARK 465 GLU A 8 REMARK 465 ILE A 9 REMARK 465 ALA A 10 REMARK 465 LYS A 11 REMARK 465 ALA A 12 REMARK 465 ALA A 13 REMARK 465 ILE A 14 REMARK 465 LEU A 15 REMARK 465 ALA A 16 REMARK 465 GLY A 17 REMARK 465 GLY A 18 REMARK 465 LEU A 19 REMARK 465 ALA A 20 REMARK 465 ALA A 21 REMARK 465 ALA A 22 REMARK 465 GLY A 23 REMARK 465 VAL A 24 REMARK 465 LEU A 25 REMARK 465 SER A 26 REMARK 465 VAL A 27 REMARK 465 GLY A 28 REMARK 465 GLU A 29 REMARK 465 SER A 30 REMARK 465 ALA A 31 REMARK 465 GLN A 32 REMARK 465 ALA A 33 REMARK 465 GLN A 34 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-44895 RELATED DB: EMDB REMARK 900 CRYO-EM STRUCTURE OF EXTRACELLULAR TUBE FROM MICROCYSTIS AERUGINOSA REMARK 900 PCC 7806SL DBREF 9BTQ A 1 158 UNP L7EE41 L7EE41_MICAE 1 158 SEQADV 9BTQ SER A 71 UNP L7EE41 PRO 71 CONFLICT SEQADV 9BTQ GLU A 108 UNP L7EE41 GLN 108 CONFLICT SEQADV 9BTQ LYS A 133 UNP L7EE41 ARG 133 CONFLICT SEQADV 9BTQ THR A 136 UNP L7EE41 GLY 136 CONFLICT SEQRES 1 A 158 MET LYS ALA SER ASN TYR GLN GLU ILE ALA LYS ALA ALA SEQRES 2 A 158 ILE LEU ALA GLY GLY LEU ALA ALA ALA GLY VAL LEU SER SEQRES 3 A 158 VAL GLY GLU SER ALA GLN ALA GLN PHE ILE GLY THR ALA SEQRES 4 A 158 SER GLN SER ARG VAL SER ALA ALA VAL THR SER ILE LEU SEQRES 5 A 158 THR ASP GLY ASN ALA ALA ALA THR ASN SER PHE ALA VAL SEQRES 6 A 158 GLU GLN VAL LEU PRO SER SER ASP TYR VAL PHE SER GLY SEQRES 7 A 158 VAL VAL ALA VAL GLN VAL SER TYR ALA THR THR ILE SER SEQRES 8 A 158 VAL GLY VAL GLY THR ALA GLY ALA LEU THR PRO VAL ILE SEQRES 9 A 158 THR ALA ALA GLU LEU THR ALA PRO VAL VAL VAL ASN ALA SEQRES 10 A 158 GLY THR GLN LEU THR VAL GLU ARG ALA THR ALA ASP ALA SEQRES 11 A 158 ILE SER LYS ALA ALA THR GLY SER ARG PHE GLY ASP VAL SEQRES 12 A 158 SER GLY ILE VAL ARG ALA TRP SER ALA GLY THR SER VAL SEQRES 13 A 158 LEU ASP HELIX 1 AA1 VAL A 94 GLY A 98 5 5 HELIX 2 AA2 THR A 122 GLY A 137 1 16 HELIX 3 AA3 ARG A 139 GLY A 153 1 15 SHEET 1 AA1 2 ARG A 43 THR A 53 0 SHEET 2 AA1 2 ALA A 58 VAL A 68 -1 O ALA A 59 N LEU A 52 SHEET 1 AA2 2 TYR A 74 PHE A 76 0 SHEET 2 AA2 2 VAL A 113 VAL A 115 -1 O VAL A 114 N VAL A 75 SHEET 1 AA3 2 ALA A 81 ALA A 87 0 SHEET 2 AA3 2 VAL A 103 THR A 110 -1 O THR A 110 N ALA A 81 SHEET 1 AA4 2 SER A 91 VAL A 92 0 SHEET 2 AA4 2 ALA A 99 LEU A 100 -1 O ALA A 99 N VAL A 92 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 TER 862 ASP A 158 MASTER 259 0 0 3 8 0 0 6 861 1 0 13 END