HEADER PROTEIN FIBRIL 28-SEP-26 34RF TITLE PAIRED HELICAL FILAMENT FROM ALZHEIMER'S DISEASE BRAIN (AD SEED) COMPND MOL_ID: 1; COMPND 2 MOLECULE: MICROTUBULE-ASSOCIATED PROTEIN TAU; COMPND 3 CHAIN: B, G, F, H, I, J; COMPND 4 SYNONYM: NEUROFIBRILLARY TANGLE PROTEIN,PAIRED HELICAL FILAMENT-TAU, COMPND 5 PHF-TAU SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606 KEYWDS TAU, PAIRED HELICAL FILAMENT, ALZHEIMER'S, PROTEIN FIBRIL EXPDTA ELECTRON MICROSCOPY AUTHOR M.HUANG,S.LOVESTAM,S.H.W.SCHERES,M.GOEDERT REVDAT 1 04-NOV-26 34RF 0 JRNL AUTH M.HUANG,S.LOVESTAM,K.A.X.CHEAM,B.GHETTI,W.A.MCEWAN, JRNL AUTH 2 S.H.W.SCHERES,M.GOEDERT JRNL TITL TEMPLATED PAIRED HELICAL FILAMENT FORMATION AND TAU JRNL TITL 2 FOLD-DEPENDENT INCLUSION MORPHOLOGIES IN PRIMARY NEURONS. JRNL REF BIORXIV 2026 JRNL REFN ISSN 2692-8205 JRNL PMID 42926395 JRNL DOI 10.64898/2026.09.30.755038 REMARK 2 REMARK 2 RESOLUTION. 2.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : RELION, RELION 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 : 271595 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 34RF COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 28-SEP-26. REMARK 100 THE DEPOSITION ID IS D_1292161515. 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 : TISSUE REMARK 245 PARTICLE TYPE : HELICAL REMARK 245 NAME OF SAMPLE : PAIRED HELICAL FILAMENT FROM REMARK 245 ALZHEIMER'S DISEASE BRAIN (AD REMARK 245 SEED) 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 : TFS FALCON 4I (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 1000.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 2500.00 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) : 4000.00 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 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: HEXAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, G, F, H, I, J 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 GLN B 336 N - CA - CB ANGL. DEV. = -11.0 DEGREES REMARK 500 GLN F 336 N - CA - CB ANGL. DEV. = -11.0 DEGREES REMARK 500 GLN I 336 N - CA - CB ANGL. DEV. = -11.0 DEGREES 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 GLU B 342 -70.70 -130.67 REMARK 500 LYS B 347 -82.97 -111.44 REMARK 500 GLU G 342 -69.00 -129.73 REMARK 500 GLU F 342 -70.72 -130.70 REMARK 500 LYS F 347 -82.92 -111.45 REMARK 500 GLU H 342 -69.01 -129.72 REMARK 500 GLU I 342 -70.76 -130.64 REMARK 500 LYS I 347 -83.03 -111.42 REMARK 500 GLU J 342 -68.93 -129.70 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-100131 RELATED DB: EMDB REMARK 900 PAIRED HELICAL FILAMENT FROM ALZHEIMER'S DISEASE BRAIN (AD SEED) DBREF 34RF B 304 380 UNP P10636 TAU_HUMAN 621 697 DBREF 34RF G 304 380 UNP P10636 TAU_HUMAN 621 697 DBREF 34RF F 304 380 UNP P10636 TAU_HUMAN 621 697 DBREF 34RF H 304 380 UNP P10636 TAU_HUMAN 621 697 DBREF 34RF I 304 380 UNP P10636 TAU_HUMAN 621 697 DBREF 34RF J 304 380 UNP P10636 TAU_HUMAN 621 697 SEQRES 1 B 77 GLY SER VAL GLN ILE VAL TYR LYS PRO VAL ASP LEU SER SEQRES 2 B 77 LYS VAL THR SER LYS CYS GLY SER LEU GLY ASN ILE HIS SEQRES 3 B 77 HIS LYS PRO GLY GLY GLY GLN VAL GLU VAL LYS SER GLU SEQRES 4 B 77 LYS LEU ASP PHE LYS ASP ARG VAL GLN SER LYS ILE GLY SEQRES 5 B 77 SER LEU ASP ASN ILE THR HIS VAL PRO GLY GLY GLY ASN SEQRES 6 B 77 LYS LYS ILE GLU THR HIS LYS LEU THR PHE ARG GLU SEQRES 1 G 77 GLY SER VAL GLN ILE VAL TYR LYS PRO VAL ASP LEU SER SEQRES 2 G 77 LYS VAL THR SER LYS CYS GLY SER LEU GLY ASN ILE HIS SEQRES 3 G 77 HIS LYS PRO GLY GLY GLY GLN VAL GLU VAL LYS SER GLU SEQRES 4 G 77 LYS LEU ASP PHE LYS ASP ARG VAL GLN SER LYS ILE GLY SEQRES 5 G 77 SER LEU ASP ASN ILE THR HIS VAL PRO GLY GLY GLY ASN SEQRES 6 G 77 LYS LYS ILE GLU THR HIS LYS LEU THR PHE ARG GLU SEQRES 1 F 77 GLY SER VAL GLN ILE VAL TYR LYS PRO VAL ASP LEU SER SEQRES 2 F 77 LYS VAL THR SER LYS CYS GLY SER LEU GLY ASN ILE HIS SEQRES 3 F 77 HIS LYS PRO GLY GLY GLY GLN VAL GLU VAL LYS SER GLU SEQRES 4 F 77 LYS LEU ASP PHE LYS ASP ARG VAL GLN SER LYS ILE GLY SEQRES 5 F 77 SER LEU ASP ASN ILE THR HIS VAL PRO GLY GLY GLY ASN SEQRES 6 F 77 LYS LYS ILE GLU THR HIS LYS LEU THR PHE ARG GLU SEQRES 1 H 77 GLY SER VAL GLN ILE VAL TYR LYS PRO VAL ASP LEU SER SEQRES 2 H 77 LYS VAL THR SER LYS CYS GLY SER LEU GLY ASN ILE HIS SEQRES 3 H 77 HIS LYS PRO GLY GLY GLY GLN VAL GLU VAL LYS SER GLU SEQRES 4 H 77 LYS LEU ASP PHE LYS ASP ARG VAL GLN SER LYS ILE GLY SEQRES 5 H 77 SER LEU ASP ASN ILE THR HIS VAL PRO GLY GLY GLY ASN SEQRES 6 H 77 LYS LYS ILE GLU THR HIS LYS LEU THR PHE ARG GLU SEQRES 1 I 77 GLY SER VAL GLN ILE VAL TYR LYS PRO VAL ASP LEU SER SEQRES 2 I 77 LYS VAL THR SER LYS CYS GLY SER LEU GLY ASN ILE HIS SEQRES 3 I 77 HIS LYS PRO GLY GLY GLY GLN VAL GLU VAL LYS SER GLU SEQRES 4 I 77 LYS LEU ASP PHE LYS ASP ARG VAL GLN SER LYS ILE GLY SEQRES 5 I 77 SER LEU ASP ASN ILE THR HIS VAL PRO GLY GLY GLY ASN SEQRES 6 I 77 LYS LYS ILE GLU THR HIS LYS LEU THR PHE ARG GLU SEQRES 1 J 77 GLY SER VAL GLN ILE VAL TYR LYS PRO VAL ASP LEU SER SEQRES 2 J 77 LYS VAL THR SER LYS CYS GLY SER LEU GLY ASN ILE HIS SEQRES 3 J 77 HIS LYS PRO GLY GLY GLY GLN VAL GLU VAL LYS SER GLU SEQRES 4 J 77 LYS LEU ASP PHE LYS ASP ARG VAL GLN SER LYS ILE GLY SEQRES 5 J 77 SER LEU ASP ASN ILE THR HIS VAL PRO GLY GLY GLY ASN SEQRES 6 J 77 LYS LYS ILE GLU THR HIS LYS LEU THR PHE ARG GLU SHEET 1 AA1 3 SER F 305 TYR F 310 0 SHEET 2 AA1 3 SER B 305 TYR B 310 1 N TYR B 310 O VAL F 309 SHEET 3 AA1 3 SER I 305 TYR I 310 1 O TYR I 310 N VAL B 309 SHEET 1 AA2 3 VAL F 313 ASP F 314 0 SHEET 2 AA2 3 VAL B 313 ASP B 314 1 N ASP B 314 O VAL F 313 SHEET 3 AA2 3 VAL I 313 ASP I 314 1 O ASP I 314 N VAL B 313 SHEET 1 AA3 3 ILE F 328 HIS F 330 0 SHEET 2 AA3 3 ILE B 328 HIS B 330 1 N ILE B 328 O HIS F 329 SHEET 3 AA3 3 ILE I 328 HIS I 330 1 O ILE I 328 N HIS B 329 SHEET 1 AA4 3 GLN F 336 VAL F 339 0 SHEET 2 AA4 3 GLN B 336 VAL B 339 1 N VAL B 339 O GLU F 338 SHEET 3 AA4 3 GLN I 336 VAL I 339 1 O VAL I 339 N GLU B 338 SHEET 1 AA5 3 LYS F 343 ASP F 348 0 SHEET 2 AA5 3 LYS B 343 ASP B 348 1 N LYS B 347 O ASP F 348 SHEET 3 AA5 3 LYS I 343 ASP I 348 1 O LYS I 347 N ASP B 348 SHEET 1 AA6 3 GLN F 351 ILE F 354 0 SHEET 2 AA6 3 GLN B 351 ILE B 354 1 N SER B 352 O GLN F 351 SHEET 3 AA6 3 GLN I 351 ILE I 354 1 O SER I 352 N GLN B 351 SHEET 1 AA7 3 ASN F 359 HIS F 362 0 SHEET 2 AA7 3 ASN B 359 HIS B 362 1 N THR B 361 O HIS F 362 SHEET 3 AA7 3 ASN I 359 HIS I 362 1 O THR I 361 N HIS B 362 SHEET 1 AA8 3 LYS F 369 THR F 373 0 SHEET 2 AA8 3 LYS B 369 THR B 373 1 N LYS B 370 O ILE F 371 SHEET 3 AA8 3 LYS I 369 THR I 373 1 O LYS I 370 N ILE B 371 SHEET 1 AA9 3 LEU F 376 THR F 377 0 SHEET 2 AA9 3 LEU B 376 THR B 377 1 N LEU B 376 O THR F 377 SHEET 3 AA9 3 LEU I 376 THR I 377 1 O LEU I 376 N THR B 377 SHEET 1 AB1 3 SER H 305 TYR H 310 0 SHEET 2 AB1 3 SER G 305 TYR G 310 1 N TYR G 310 O VAL H 309 SHEET 3 AB1 3 SER J 305 TYR J 310 1 O TYR J 310 N VAL G 309 SHEET 1 AB2 3 VAL H 313 ASP H 314 0 SHEET 2 AB2 3 VAL G 313 ASP G 314 1 N ASP G 314 O VAL H 313 SHEET 3 AB2 3 VAL J 313 ASP J 314 1 O ASP J 314 N VAL G 313 SHEET 1 AB3 3 ILE H 328 HIS H 330 0 SHEET 2 AB3 3 ILE G 328 HIS G 330 1 N ILE G 328 O HIS H 329 SHEET 3 AB3 3 ILE J 328 HIS J 330 1 O ILE J 328 N HIS G 329 SHEET 1 AB4 3 GLN H 336 VAL H 339 0 SHEET 2 AB4 3 GLN G 336 VAL G 339 1 N VAL G 339 O GLU H 338 SHEET 3 AB4 3 GLN J 336 VAL J 339 1 O VAL J 339 N GLU G 338 SHEET 1 AB5 3 LYS H 343 ASP H 348 0 SHEET 2 AB5 3 LYS G 343 ASP G 348 1 N LYS G 347 O ASP H 348 SHEET 3 AB5 3 LYS J 343 ASP J 348 1 O LYS J 347 N ASP G 348 SHEET 1 AB6 3 GLN H 351 ILE H 354 0 SHEET 2 AB6 3 GLN G 351 ILE G 354 1 N SER G 352 O GLN H 351 SHEET 3 AB6 3 GLN J 351 ILE J 354 1 O SER J 352 N GLN G 351 SHEET 1 AB7 3 ASN H 359 HIS H 362 0 SHEET 2 AB7 3 ASN G 359 HIS G 362 1 N THR G 361 O HIS H 362 SHEET 3 AB7 3 ASN J 359 HIS J 362 1 O THR J 361 N HIS G 362 SHEET 1 AB8 3 LYS H 369 THR H 373 0 SHEET 2 AB8 3 LYS G 369 THR G 373 1 N LYS G 370 O ILE H 371 SHEET 3 AB8 3 LYS J 369 THR J 373 1 O LYS J 370 N ILE G 371 SHEET 1 AB9 3 LEU H 376 THR H 377 0 SHEET 2 AB9 3 LEU G 376 THR G 377 1 N LEU G 376 O THR H 377 SHEET 3 AB9 3 LEU J 376 THR J 377 1 O LEU J 376 N THR G 377 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 MTRIX1 1 0.999845 0.017592 0.000000 -2.75870 1 MTRIX2 1 -0.017592 0.999845 0.000000 2.80770 1 MTRIX3 1 0.000000 0.000000 1.000000 4.82000 1 MASTER 148 0 0 0 54 0 0 9 3528 6 0 36 END