HEADER MEMBRANE PROTEIN 25-MAY-21 7N0K TITLE CRYO-EM STRUCTURE OF TACAN IN THE APO FORM (TMEM120A) COMPND MOL_ID: 1; COMPND 2 MOLECULE: ION CHANNEL TACAN; COMPND 3 CHAIN: B, A; COMPND 4 SYNONYM: TRANSMEMBRANE PROTEIN 120A; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MUS MUSCULUS; SOURCE 3 ORGANISM_COMMON: MOUSE; SOURCE 4 ORGANISM_TAXID: 10090; SOURCE 5 GENE: TMEM120A, NET29, TACAN; SOURCE 6 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 9606 KEYWDS LIPID METABOLISM, COENZYME A, MEMBRANE PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR Y.NIU,X.TAO,R.MACKINNON REVDAT 1 15-SEP-21 7N0K 0 JRNL AUTH Y.NIU,X.TAO,G.VAISEY,P.D.B.OLINARES,H.ALWASEEM,B.T.CHAIT, JRNL AUTH 2 R.MACKINNON JRNL TITL ANALYSIS OF THE MECHANOSENSOR CHANNEL FUNCTIONALITY OF JRNL TITL 2 TACAN. JRNL REF ELIFE V. 10 2021 JRNL REFN ESSN 2050-084X JRNL PMID 34374644 JRNL DOI 10.7554/ELIFE.71188 REMARK 2 REMARK 2 RESOLUTION. 3.50 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : SERIALEM, GCTF, UCSF CHIMERA, COOT, REMARK 3 PHENIX, RELION, RELION, CRYOSPARC, REMARK 3 RELION, RELION, CRYOSPARC, 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) : 3.500 REMARK 3 NUMBER OF PARTICLES : 110090 REMARK 3 CTF CORRECTION METHOD : NONE REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: NULL REMARK 4 REMARK 4 7N0K COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-MAY-21. REMARK 100 THE DEPOSITION ID IS D_1000257091. 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 : HOMO-DIMERIC ASSEMBLY OF WILD REMARK 245 TYPE TACAN(TMEM120A) REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 6.00 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 : FEI TITAN KRIOS REMARK 245 DETECTOR TYPE : GATAN K2 SUMMIT (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : NULL REMARK 245 MAXIMUM DEFOCUS (NM) : NULL REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL REMARK 245 IMAGING MODE : DARK FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 7540.00 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: DIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: B, 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 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 B 1 REMARK 465 GLN B 2 REMARK 465 SER B 3 REMARK 465 PRO B 4 REMARK 465 PRO B 5 REMARK 465 PRO B 6 REMARK 465 ASP B 7 REMARK 465 PRO B 8 REMARK 465 PRO B 73 REMARK 465 SER B 74 REMARK 465 GLU B 75 REMARK 465 LEU B 251 REMARK 465 GLY B 252 REMARK 465 GLU B 253 REMARK 465 ARG B 254 REMARK 465 HIS B 255 REMARK 465 THR B 256 REMARK 465 MET B 257 REMARK 465 ASP B 258 REMARK 465 LEU B 259 REMARK 465 THR B 260 REMARK 465 VAL B 261 REMARK 465 GLN B 336 REMARK 465 GLN B 337 REMARK 465 HIS B 338 REMARK 465 GLY B 339 REMARK 465 ASN B 340 REMARK 465 LYS B 341 REMARK 465 LYS B 342 REMARK 465 ASP B 343 REMARK 465 MET A 1 REMARK 465 GLN A 2 REMARK 465 SER A 3 REMARK 465 PRO A 4 REMARK 465 PRO A 5 REMARK 465 PRO A 6 REMARK 465 ASP A 7 REMARK 465 PRO A 8 REMARK 465 PRO A 73 REMARK 465 SER A 74 REMARK 465 GLU A 75 REMARK 465 LEU A 251 REMARK 465 GLY A 252 REMARK 465 GLU A 253 REMARK 465 ARG A 254 REMARK 465 HIS A 255 REMARK 465 THR A 256 REMARK 465 MET A 257 REMARK 465 ASP A 258 REMARK 465 LEU A 259 REMARK 465 THR A 260 REMARK 465 VAL A 261 REMARK 465 GLN A 336 REMARK 465 GLN A 337 REMARK 465 HIS A 338 REMARK 465 GLY A 339 REMARK 465 ASN A 340 REMARK 465 LYS A 341 REMARK 465 LYS A 342 REMARK 465 ASP A 343 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 ARG B 14 CG CD NE CZ NH1 NH2 REMARK 470 LEU B 19 CG CD1 CD2 REMARK 470 GLN B 21 CG CD OE1 NE2 REMARK 470 LYS B 104 CG CD CE NZ REMARK 470 ASN B 185 CG OD1 ND2 REMARK 470 MET B 215 CG SD CE REMARK 470 GLU B 262 CB CG CD OE1 OE2 REMARK 470 GLN B 265 CG CD OE1 NE2 REMARK 470 SER B 266 OG REMARK 470 ARG B 270 CG CD NE CZ NH1 NH2 REMARK 470 LEU B 272 CG CD1 CD2 REMARK 470 THR B 273 OG1 CG2 REMARK 470 PHE B 274 CG CD1 CD2 CE1 CE2 CZ REMARK 470 GLU B 301 CG CD OE1 OE2 REMARK 470 LYS B 303 CG CD CE NZ REMARK 470 GLN B 306 CG CD OE1 NE2 REMARK 470 LYS B 332 CG CD CE NZ REMARK 470 SER B 335 OG REMARK 470 ARG A 14 CG CD NE CZ NH1 NH2 REMARK 470 LEU A 19 CG CD1 CD2 REMARK 470 GLN A 21 CG CD OE1 NE2 REMARK 470 LYS A 104 CG CD CE NZ REMARK 470 ASN A 185 CG OD1 ND2 REMARK 470 MET A 215 CG SD CE REMARK 470 GLU A 262 CB CG CD OE1 OE2 REMARK 470 GLN A 265 CG CD OE1 NE2 REMARK 470 SER A 266 OG REMARK 470 ARG A 270 CG CD NE CZ NH1 NH2 REMARK 470 LEU A 272 CG CD1 CD2 REMARK 470 THR A 273 OG1 CG2 REMARK 470 PHE A 274 CG CD1 CD2 CE1 CE2 CZ REMARK 470 GLU A 301 CG CD OE1 OE2 REMARK 470 LYS A 303 CG CD CE NZ REMARK 470 GLN A 306 CG CD OE1 NE2 REMARK 470 LYS A 332 CG CD CE NZ REMARK 470 SER A 335 OG 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 B 113 -12.44 74.32 REMARK 500 GLN B 217 0.41 -68.13 REMARK 500 LEU A 113 -12.51 74.35 REMARK 500 GLN A 217 0.44 -68.14 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-24107 RELATED DB: EMDB REMARK 900 CRYO-EM STRUCTURE OF TACAN IN THE APO FORM (TMEM120A) DBREF 7N0K B 1 343 UNP Q8C1E7 TACAN_MOUSE 1 343 DBREF 7N0K A 1 343 UNP Q8C1E7 TACAN_MOUSE 1 343 SEQRES 1 B 343 MET GLN SER PRO PRO PRO ASP PRO LEU GLY ASP CYS LEU SEQRES 2 B 343 ARG ASN TRP GLU ASP LEU GLN GLN ASP PHE GLN GLY ILE SEQRES 3 B 343 GLN GLU THR HIS ARG LEU TYR ARG LEU LYS LEU GLU GLU SEQRES 4 B 343 LEU THR LYS LEU GLN ALA ASN CYS THR ASN SER ILE THR SEQRES 5 B 343 ARG GLN LYS LYS ARG LEU GLN GLU LEU ALA LEU VAL LEU SEQRES 6 B 343 LYS LYS CYS ARG PRO SER LEU PRO SER GLU SER MET GLU SEQRES 7 B 343 ALA ALA GLN GLU LEU GLU ASN GLN MET LYS GLU ARG GLN SEQRES 8 B 343 GLY LEU PHE PHE ASP MET GLU ALA TYR LEU PRO LYS LYS SEQRES 9 B 343 ASN GLY LEU TYR LEU SER LEU VAL LEU GLY ASN VAL ASN SEQRES 10 B 343 VAL THR LEU LEU SER LYS GLN ALA LYS PHE ALA TYR LYS SEQRES 11 B 343 ASP GLU TYR GLU LYS PHE LYS LEU TYR LEU THR ILE ILE SEQRES 12 B 343 LEU ILE VAL ILE SER PHE THR CYS ARG PHE LEU LEU ASN SEQRES 13 B 343 SER ARG VAL THR ASP ALA ALA PHE ASN PHE LEU LEU VAL SEQRES 14 B 343 TRP TYR TYR CYS THR LEU THR ILE ARG GLU SER ILE LEU SEQRES 15 B 343 ILE ASN ASN GLY SER ARG ILE LYS GLY TRP TRP VAL PHE SEQRES 16 B 343 HIS HIS TYR VAL SER THR PHE LEU SER GLY VAL MET LEU SEQRES 17 B 343 THR TRP PRO ASP GLY LEU MET TYR GLN LYS PHE ARG ASN SEQRES 18 B 343 GLN PHE LEU SER PHE SER MET TYR GLN SER PHE VAL GLN SEQRES 19 B 343 PHE LEU GLN TYR TYR TYR GLN SER GLY CYS LEU TYR ARG SEQRES 20 B 343 LEU ARG ALA LEU GLY GLU ARG HIS THR MET ASP LEU THR SEQRES 21 B 343 VAL GLU GLY PHE GLN SER TRP MET TRP ARG GLY LEU THR SEQRES 22 B 343 PHE LEU LEU PRO PHE LEU PHE PHE GLY HIS PHE TRP GLN SEQRES 23 B 343 LEU PHE ASN ALA LEU THR LEU PHE ASN LEU ALA ARG ASP SEQRES 24 B 343 PRO GLU CYS LYS GLU TRP GLN VAL LEU MET CYS GLY PHE SEQRES 25 B 343 PRO PHE LEU LEU LEU PHE LEU GLY ASN PHE PHE THR THR SEQRES 26 B 343 LEU ARG VAL VAL HIS GLN LYS PHE HIS SER GLN GLN HIS SEQRES 27 B 343 GLY ASN LYS LYS ASP SEQRES 1 A 343 MET GLN SER PRO PRO PRO ASP PRO LEU GLY ASP CYS LEU SEQRES 2 A 343 ARG ASN TRP GLU ASP LEU GLN GLN ASP PHE GLN GLY ILE SEQRES 3 A 343 GLN GLU THR HIS ARG LEU TYR ARG LEU LYS LEU GLU GLU SEQRES 4 A 343 LEU THR LYS LEU GLN ALA ASN CYS THR ASN SER ILE THR SEQRES 5 A 343 ARG GLN LYS LYS ARG LEU GLN GLU LEU ALA LEU VAL LEU SEQRES 6 A 343 LYS LYS CYS ARG PRO SER LEU PRO SER GLU SER MET GLU SEQRES 7 A 343 ALA ALA GLN GLU LEU GLU ASN GLN MET LYS GLU ARG GLN SEQRES 8 A 343 GLY LEU PHE PHE ASP MET GLU ALA TYR LEU PRO LYS LYS SEQRES 9 A 343 ASN GLY LEU TYR LEU SER LEU VAL LEU GLY ASN VAL ASN SEQRES 10 A 343 VAL THR LEU LEU SER LYS GLN ALA LYS PHE ALA TYR LYS SEQRES 11 A 343 ASP GLU TYR GLU LYS PHE LYS LEU TYR LEU THR ILE ILE SEQRES 12 A 343 LEU ILE VAL ILE SER PHE THR CYS ARG PHE LEU LEU ASN SEQRES 13 A 343 SER ARG VAL THR ASP ALA ALA PHE ASN PHE LEU LEU VAL SEQRES 14 A 343 TRP TYR TYR CYS THR LEU THR ILE ARG GLU SER ILE LEU SEQRES 15 A 343 ILE ASN ASN GLY SER ARG ILE LYS GLY TRP TRP VAL PHE SEQRES 16 A 343 HIS HIS TYR VAL SER THR PHE LEU SER GLY VAL MET LEU SEQRES 17 A 343 THR TRP PRO ASP GLY LEU MET TYR GLN LYS PHE ARG ASN SEQRES 18 A 343 GLN PHE LEU SER PHE SER MET TYR GLN SER PHE VAL GLN SEQRES 19 A 343 PHE LEU GLN TYR TYR TYR GLN SER GLY CYS LEU TYR ARG SEQRES 20 A 343 LEU ARG ALA LEU GLY GLU ARG HIS THR MET ASP LEU THR SEQRES 21 A 343 VAL GLU GLY PHE GLN SER TRP MET TRP ARG GLY LEU THR SEQRES 22 A 343 PHE LEU LEU PRO PHE LEU PHE PHE GLY HIS PHE TRP GLN SEQRES 23 A 343 LEU PHE ASN ALA LEU THR LEU PHE ASN LEU ALA ARG ASP SEQRES 24 A 343 PRO GLU CYS LYS GLU TRP GLN VAL LEU MET CYS GLY PHE SEQRES 25 A 343 PRO PHE LEU LEU LEU PHE LEU GLY ASN PHE PHE THR THR SEQRES 26 A 343 LEU ARG VAL VAL HIS GLN LYS PHE HIS SER GLN GLN HIS SEQRES 27 A 343 GLY ASN LYS LYS ASP HELIX 1 AA1 LEU B 9 CYS B 68 1 60 HELIX 2 AA2 MET B 77 LEU B 101 1 25 HELIX 3 AA3 LEU B 107 VAL B 112 1 6 HELIX 4 AA4 SER B 122 LEU B 154 1 33 HELIX 5 AA5 SER B 157 GLY B 186 1 30 HELIX 6 AA6 LYS B 190 THR B 209 1 20 HELIX 7 AA7 MET B 215 PHE B 219 5 5 HELIX 8 AA8 ARG B 220 ALA B 250 1 31 HELIX 9 AA9 GLY B 263 ARG B 298 1 36 HELIX 10 AB1 TRP B 305 SER B 335 1 31 HELIX 11 AB2 GLY A 10 CYS A 68 1 59 HELIX 12 AB3 MET A 77 LEU A 101 1 25 HELIX 13 AB4 LEU A 107 VAL A 112 1 6 HELIX 14 AB5 SER A 122 LEU A 154 1 33 HELIX 15 AB6 SER A 157 GLY A 186 1 30 HELIX 16 AB7 LYS A 190 THR A 209 1 20 HELIX 17 AB8 MET A 215 PHE A 219 5 5 HELIX 18 AB9 ARG A 220 ALA A 250 1 31 HELIX 19 AC1 GLY A 263 ARG A 298 1 36 HELIX 20 AC2 TRP A 305 SER A 335 1 31 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