HEADER TRANSPORT PROTEIN 20-OCT-25 9X97 TITLE CRYO-EM STRUCTURE OF G6PT1 BOUND WITH UPPER PI COMPND MOL_ID: 1; COMPND 2 MOLECULE: GLUCOSE-6-PHOSPHATE EXCHANGER SLC37A4; COMPND 3 CHAIN: A, C; COMPND 4 SYNONYM: GLUCOSE-5-PHOSPHATE TRANSPORTER,GLUCOSE-6-PHOSPHATE COMPND 5 TRANSLOCASE,SOLUTE CARRIER FAMILY 37 MEMBER 4,TRANSFORMATION-RELATED COMPND 6 GENE 19 PROTEIN,TRG-19; COMPND 7 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: SLC37A4, G6PT, G6PT1, PRO0685, TRG19; SOURCE 6 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 9606 KEYWDS G6P, TRANSPORT PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR G.SHUAI,Y.XIA,W.QIAN REVDAT 1 07-JAN-26 9X97 0 JRNL AUTH Q.WANG,N.GUO,Y.DU,J.LIU,W.AI,F.YANG,Y.ZHU,Y.ZHAO,D.WU,L.LIU, JRNL AUTH 2 X.YAO,S.GAO JRNL TITL STRUCTURES OF HUMAN GLUCOSE-6-PHOSPHATE TRANSPORTER REVEAL JRNL TITL 2 RECIPROCAL ANTIPORT MECHANISM DRIVING GLUCOSE-6-PHOSPHATE JRNL TITL 3 AND INORGANIC PHOSPHATE EXCHANGE. JRNL REF NAT COMMUN 2025 JRNL REFN ESSN 2041-1723 JRNL PMID 41381426 JRNL DOI 10.1038/S41467-025-66386-4 REMARK 2 REMARK 2 RESOLUTION. 2.89 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : CRYOSPARC, 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) : 2.890 REMARK 3 NUMBER OF PARTICLES : 30263 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 9X97 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBC ON 24-OCT-25. REMARK 100 THE DEPOSITION ID IS D_1300064870. 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 : G6PT1 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 : 8.00 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) : 1200.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 1900.00 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 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: A, C 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 PRO A 201 REMARK 465 MET A 202 REMARK 465 PRO A 203 REMARK 465 SER A 204 REMARK 465 GLU A 205 REMARK 465 GLY A 206 REMARK 465 LYS A 207 REMARK 465 LYS A 208 REMARK 465 GLY A 209 REMARK 465 SER A 210 REMARK 465 LEU A 211 REMARK 465 LYS A 212 REMARK 465 LYS A 427 REMARK 465 ALA A 428 REMARK 465 GLU A 429 REMARK 465 PRO C 201 REMARK 465 MET C 202 REMARK 465 PRO C 203 REMARK 465 SER C 204 REMARK 465 GLU C 205 REMARK 465 GLY C 206 REMARK 465 LYS C 207 REMARK 465 LYS C 208 REMARK 465 GLY C 209 REMARK 465 SER C 210 REMARK 465 LEU C 211 REMARK 465 LYS C 212 REMARK 465 LYS C 427 REMARK 465 ALA C 428 REMARK 465 GLU C 429 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 PRO A 131 -8.59 -56.46 REMARK 500 PRO A 191 5.13 -59.90 REMARK 500 ASP A 193 -71.09 -38.65 REMARK 500 LEU A 196 141.18 -172.42 REMARK 500 PHE A 249 -18.87 72.79 REMARK 500 ILE A 252 -62.47 -98.82 REMARK 500 LYS A 255 -169.74 -79.75 REMARK 500 TYR A 391 -66.20 -95.11 REMARK 500 SER A 392 172.78 179.69 REMARK 500 PRO C 131 -7.87 -56.10 REMARK 500 ASN C 189 4.72 -69.08 REMARK 500 PRO C 191 4.82 -63.38 REMARK 500 PHE C 249 -64.76 63.62 REMARK 500 SER C 341 39.69 -93.58 REMARK 500 TYR C 391 -66.88 -94.81 REMARK 500 SER C 392 172.30 179.61 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-64148 RELATED DB: EMDB REMARK 900 RELATED ID: EMD-66661 RELATED DB: EMDB REMARK 900 UP_PI G6PT1 STRUCTURE DBREF 9X97 A 1 429 UNP O43826 G6PT1_HUMAN 1 429 DBREF 9X97 C 1 429 UNP O43826 G6PT1_HUMAN 1 429 SEQRES 1 A 429 MET ALA ALA GLN GLY TYR GLY TYR TYR ARG THR VAL ILE SEQRES 2 A 429 PHE SER ALA MET PHE GLY GLY TYR SER LEU TYR TYR PHE SEQRES 3 A 429 ASN ARG LYS THR PHE SER PHE VAL MET PRO SER LEU VAL SEQRES 4 A 429 GLU GLU ILE PRO LEU ASP LYS ASP ASP LEU GLY PHE ILE SEQRES 5 A 429 THR SER SER GLN SER ALA ALA TYR ALA ILE SER LYS PHE SEQRES 6 A 429 VAL SER GLY VAL LEU SER ASP GLN MET SER ALA ARG TRP SEQRES 7 A 429 LEU PHE SER SER GLY LEU LEU LEU VAL GLY LEU VAL ASN SEQRES 8 A 429 ILE PHE PHE ALA TRP SER SER THR VAL PRO VAL PHE ALA SEQRES 9 A 429 ALA LEU TRP PHE LEU ASN GLY LEU ALA GLN GLY LEU GLY SEQRES 10 A 429 TRP PRO PRO CYS GLY LYS VAL LEU ARG LYS TRP PHE GLU SEQRES 11 A 429 PRO SER GLN PHE GLY THR TRP TRP ALA ILE LEU SER THR SEQRES 12 A 429 SER MET ASN LEU ALA GLY GLY LEU GLY PRO ILE LEU ALA SEQRES 13 A 429 THR ILE LEU ALA GLN SER TYR SER TRP ARG SER THR LEU SEQRES 14 A 429 ALA LEU SER GLY ALA LEU CYS VAL VAL VAL SER PHE LEU SEQRES 15 A 429 CYS LEU LEU LEU ILE HIS ASN GLU PRO ALA ASP VAL GLY SEQRES 16 A 429 LEU ARG ASN LEU ASP PRO MET PRO SER GLU GLY LYS LYS SEQRES 17 A 429 GLY SER LEU LYS GLU GLU SER THR LEU GLN GLU LEU LEU SEQRES 18 A 429 LEU SER PRO TYR LEU TRP VAL LEU SER THR GLY TYR LEU SEQRES 19 A 429 VAL VAL PHE GLY VAL LYS THR CYS CYS THR ASP TRP GLY SEQRES 20 A 429 GLN PHE PHE LEU ILE GLN GLU LYS GLY GLN SER ALA LEU SEQRES 21 A 429 VAL GLY SER SER TYR MET SER ALA LEU GLU VAL GLY GLY SEQRES 22 A 429 LEU VAL GLY SER ILE ALA ALA GLY TYR LEU SER ASP ARG SEQRES 23 A 429 ALA MET ALA LYS ALA GLY LEU SER ASN TYR GLY ASN PRO SEQRES 24 A 429 ARG HIS GLY LEU LEU LEU PHE MET MET ALA GLY MET THR SEQRES 25 A 429 VAL SER MET TYR LEU PHE ARG VAL THR VAL THR SER ASP SEQRES 26 A 429 SER PRO LYS LEU TRP ILE LEU VAL LEU GLY ALA VAL PHE SEQRES 27 A 429 GLY PHE SER SER TYR GLY PRO ILE ALA LEU PHE GLY VAL SEQRES 28 A 429 ILE ALA ASN GLU SER ALA PRO PRO ASN LEU CYS GLY THR SEQRES 29 A 429 SER HIS ALA ILE VAL GLY LEU MET ALA ASN VAL GLY GLY SEQRES 30 A 429 PHE LEU ALA GLY LEU PRO PHE SER THR ILE ALA LYS HIS SEQRES 31 A 429 TYR SER TRP SER THR ALA PHE TRP VAL ALA GLU VAL ILE SEQRES 32 A 429 CYS ALA ALA SER THR ALA ALA PHE PHE LEU LEU ARG ASN SEQRES 33 A 429 ILE ARG THR LYS MET GLY ARG VAL SER LYS LYS ALA GLU SEQRES 1 C 429 MET ALA ALA GLN GLY TYR GLY TYR TYR ARG THR VAL ILE SEQRES 2 C 429 PHE SER ALA MET PHE GLY GLY TYR SER LEU TYR TYR PHE SEQRES 3 C 429 ASN ARG LYS THR PHE SER PHE VAL MET PRO SER LEU VAL SEQRES 4 C 429 GLU GLU ILE PRO LEU ASP LYS ASP ASP LEU GLY PHE ILE SEQRES 5 C 429 THR SER SER GLN SER ALA ALA TYR ALA ILE SER LYS PHE SEQRES 6 C 429 VAL SER GLY VAL LEU SER ASP GLN MET SER ALA ARG TRP SEQRES 7 C 429 LEU PHE SER SER GLY LEU LEU LEU VAL GLY LEU VAL ASN SEQRES 8 C 429 ILE PHE PHE ALA TRP SER SER THR VAL PRO VAL PHE ALA SEQRES 9 C 429 ALA LEU TRP PHE LEU ASN GLY LEU ALA GLN GLY LEU GLY SEQRES 10 C 429 TRP PRO PRO CYS GLY LYS VAL LEU ARG LYS TRP PHE GLU SEQRES 11 C 429 PRO SER GLN PHE GLY THR TRP TRP ALA ILE LEU SER THR SEQRES 12 C 429 SER MET ASN LEU ALA GLY GLY LEU GLY PRO ILE LEU ALA SEQRES 13 C 429 THR ILE LEU ALA GLN SER TYR SER TRP ARG SER THR LEU SEQRES 14 C 429 ALA LEU SER GLY ALA LEU CYS VAL VAL VAL SER PHE LEU SEQRES 15 C 429 CYS LEU LEU LEU ILE HIS ASN GLU PRO ALA ASP VAL GLY SEQRES 16 C 429 LEU ARG ASN LEU ASP PRO MET PRO SER GLU GLY LYS LYS SEQRES 17 C 429 GLY SER LEU LYS GLU GLU SER THR LEU GLN GLU LEU LEU SEQRES 18 C 429 LEU SER PRO TYR LEU TRP VAL LEU SER THR GLY TYR LEU SEQRES 19 C 429 VAL VAL PHE GLY VAL LYS THR CYS CYS THR ASP TRP GLY SEQRES 20 C 429 GLN PHE PHE LEU ILE GLN GLU LYS GLY GLN SER ALA LEU SEQRES 21 C 429 VAL GLY SER SER TYR MET SER ALA LEU GLU VAL GLY GLY SEQRES 22 C 429 LEU VAL GLY SER ILE ALA ALA GLY TYR LEU SER ASP ARG SEQRES 23 C 429 ALA MET ALA LYS ALA GLY LEU SER ASN TYR GLY ASN PRO SEQRES 24 C 429 ARG HIS GLY LEU LEU LEU PHE MET MET ALA GLY MET THR SEQRES 25 C 429 VAL SER MET TYR LEU PHE ARG VAL THR VAL THR SER ASP SEQRES 26 C 429 SER PRO LYS LEU TRP ILE LEU VAL LEU GLY ALA VAL PHE SEQRES 27 C 429 GLY PHE SER SER TYR GLY PRO ILE ALA LEU PHE GLY VAL SEQRES 28 C 429 ILE ALA ASN GLU SER ALA PRO PRO ASN LEU CYS GLY THR SEQRES 29 C 429 SER HIS ALA ILE VAL GLY LEU MET ALA ASN VAL GLY GLY SEQRES 30 C 429 PHE LEU ALA GLY LEU PRO PHE SER THR ILE ALA LYS HIS SEQRES 31 C 429 TYR SER TRP SER THR ALA PHE TRP VAL ALA GLU VAL ILE SEQRES 32 C 429 CYS ALA ALA SER THR ALA ALA PHE PHE LEU LEU ARG ASN SEQRES 33 C 429 ILE ARG THR LYS MET GLY ARG VAL SER LYS LYS ALA GLU HET PO4 A 501 5 HET PO4 C 501 5 HETNAM PO4 PHOSPHATE ION FORMUL 3 PO4 2(O4 P 3-) HELIX 1 AA1 MET A 1 GLY A 19 1 19 HELIX 2 AA2 GLY A 20 LYS A 29 1 10 HELIX 3 AA3 LYS A 29 ILE A 42 1 14 HELIX 4 AA4 ASP A 45 LYS A 64 1 20 HELIX 5 AA5 SER A 75 SER A 82 1 8 HELIX 6 AA6 GLY A 83 PHE A 93 1 11 HELIX 7 AA7 THR A 99 GLY A 115 1 17 HELIX 8 AA8 TRP A 118 PHE A 129 1 12 HELIX 9 AA9 TRP A 137 SER A 142 1 6 HELIX 10 AB1 THR A 143 ALA A 156 1 14 HELIX 11 AB2 SER A 164 LEU A 185 1 22 HELIX 12 AB3 THR A 216 LEU A 221 1 6 HELIX 13 AB4 TYR A 225 GLY A 247 1 23 HELIX 14 AB5 LEU A 260 ALA A 291 1 32 HELIX 15 AB6 HIS A 301 THR A 321 1 21 HELIX 16 AB7 PRO A 327 PHE A 349 1 23 HELIX 17 AB8 GLY A 350 ALA A 357 1 8 HELIX 18 AB9 ILE A 368 ALA A 380 1 13 HELIX 19 AC1 GLY A 381 TYR A 391 1 11 HELIX 20 AC2 THR A 395 LEU A 414 1 20 HELIX 21 AC3 ALA C 2 GLY C 19 1 18 HELIX 22 AC4 TYR C 21 ASN C 27 1 7 HELIX 23 AC5 LYS C 29 VAL C 34 1 6 HELIX 24 AC6 VAL C 34 ILE C 42 1 9 HELIX 25 AC7 ASP C 45 ILE C 62 1 18 HELIX 26 AC8 SER C 75 SER C 82 1 8 HELIX 27 AC9 GLY C 83 PHE C 93 1 11 HELIX 28 AD1 THR C 99 ALA C 113 1 15 HELIX 29 AD2 TRP C 118 PHE C 129 1 12 HELIX 30 AD3 TRP C 137 SER C 142 1 6 HELIX 31 AD4 THR C 143 ALA C 156 1 14 HELIX 32 AD5 THR C 157 GLN C 161 5 5 HELIX 33 AD6 SER C 164 LEU C 185 1 22 HELIX 34 AD7 THR C 216 LEU C 221 1 6 HELIX 35 AD8 SER C 230 TRP C 246 1 17 HELIX 36 AD9 TRP C 246 GLU C 254 1 9 HELIX 37 AE1 LEU C 260 ALA C 291 1 32 HELIX 38 AE2 HIS C 301 THR C 321 1 21 HELIX 39 AE3 PRO C 327 ALA C 347 1 21 HELIX 40 AE4 GLY C 350 ALA C 357 1 8 HELIX 41 AE5 ILE C 368 ALA C 380 1 13 HELIX 42 AE6 GLY C 381 TYR C 391 1 11 HELIX 43 AE7 THR C 395 PHE C 411 1 17 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 TER 3161 LYS A 426 TER 6322 LYS C 426 HETATM 6323 P PO4 A 501 97.432 111.625 96.837 1.00105.46 P HETATM 6324 O1 PO4 A 501 97.610 111.316 95.371 1.00 81.45 O HETATM 6325 O2 PO4 A 501 96.142 111.016 97.331 1.00 81.32 O HETATM 6326 O3 PO4 A 501 98.593 111.053 97.615 1.00 81.87 O HETATM 6327 O4 PO4 A 501 97.381 113.121 97.032 1.00 89.47 O HETATM 6328 P PO4 C 501 100.322 86.135 96.843 1.00101.56 P HETATM 6329 O1 PO4 C 501 100.141 86.439 95.376 1.00 80.01 O HETATM 6330 O2 PO4 C 501 101.620 86.736 97.329 1.00 81.99 O HETATM 6331 O3 PO4 C 501 99.170 86.721 97.622 1.00 81.23 O HETATM 6332 O4 PO4 C 501 100.362 84.640 97.044 1.00 85.13 O CONECT 6323 6324 6325 6326 6327 CONECT 6324 6323 CONECT 6325 6323 CONECT 6326 6323 CONECT 6327 6323 CONECT 6328 6329 6330 6331 6332 CONECT 6329 6328 CONECT 6330 6328 CONECT 6331 6328 CONECT 6332 6328 MASTER 168 0 2 43 0 0 0 6 6330 2 10 66 END