HEADER HORMONE 03-MAY-25 9UTD TITLE INFLUX CARRIER SUBSTRATE BOUND FORM COMPND MOL_ID: 1; COMPND 2 MOLECULE: AUXIN TRANSPORTER PROTEIN 1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: AUXIN INFLUX CARRIER PROTEIN 1,POLAR AUXIN TRANSPORT COMPND 5 INHIBITOR-RESISTANT PROTEIN 1; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ARABIDOPSIS THALIANA; SOURCE 3 ORGANISM_COMMON: MOUSE-EAR CRESS; SOURCE 4 ORGANISM_TAXID: 3702; SOURCE 5 GENE: AUX1, AUX, PIR1, WAV5, AT2G38120, F16M14.5; SOURCE 6 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 9606 KEYWDS HORMONE TRANSPORTER, HORMONE EXPDTA ELECTRON MICROSCOPY AUTHOR H.CHEN,D.JIANG REVDAT 1 24-DEC-25 9UTD 0 JRNL AUTH H.CHEN,J.FAN,C.CHI,J.ZHAO,D.WU,X.LEI,X.W.DENG,D.JIANG JRNL TITL STRUCTURAL BASIS OF AUXIN RECOGNITION AND TRANSPORT BY THE JRNL TITL 2 PLANT INFLUX CARRIER AUX1. JRNL REF MOL PLANT V. 18 1284 2025 JRNL REFN ESSN 1752-9867 JRNL PMID 40579814 JRNL DOI 10.1016/J.MOLP.2025.06.015 REMARK 2 REMARK 2 RESOLUTION. 3.06 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) : 3.060 REMARK 3 NUMBER OF PARTICLES : 129741 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 9UTD COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBC ON 08-MAY-25. REMARK 100 THE DEPOSITION ID IS D_1300059110. 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 : PLANT INFLUX CARRIER HORMONE REMARK 245 BOUND FORM REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 10.00 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 : TFS TITAN THEMIS 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) : 6000.00 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: MONOMERIC 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 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 SER A 2 REMARK 465 GLU A 3 REMARK 465 GLY A 4 REMARK 465 VAL A 5 REMARK 465 GLU A 6 REMARK 465 ALA A 7 REMARK 465 ILE A 8 REMARK 465 VAL A 9 REMARK 465 ALA A 10 REMARK 465 ASN A 11 REMARK 465 ASP A 12 REMARK 465 ASN A 13 REMARK 465 GLY A 14 REMARK 465 THR A 15 REMARK 465 ASP A 16 REMARK 465 GLN A 17 REMARK 465 VAL A 18 REMARK 465 ASN A 19 REMARK 465 GLY A 20 REMARK 465 ASN A 21 REMARK 465 ARG A 22 REMARK 465 THR A 23 REMARK 465 GLY A 24 REMARK 465 LYS A 25 REMARK 465 ASP A 26 REMARK 465 ASN A 27 REMARK 465 GLU A 28 REMARK 465 GLU A 29 REMARK 465 HIS A 30 REMARK 465 ASP A 31 REMARK 465 GLY A 32 REMARK 465 SER A 33 REMARK 465 THR A 34 REMARK 465 GLY A 35 REMARK 465 SER A 36 REMARK 465 ASN A 37 REMARK 465 LEU A 38 REMARK 465 SER A 39 REMARK 465 ASN A 40 REMARK 465 PRO A 469 REMARK 465 ALA A 470 REMARK 465 ALA A 471 REMARK 465 ALA A 472 REMARK 465 ALA A 473 REMARK 465 ALA A 474 REMARK 465 HIS A 475 REMARK 465 ALA A 476 REMARK 465 PRO A 477 REMARK 465 VAL A 478 REMARK 465 SER A 479 REMARK 465 ALA A 480 REMARK 465 LEU A 481 REMARK 465 HIS A 482 REMARK 465 HIS A 483 REMARK 465 ARG A 484 REMARK 465 LEU A 485 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 PHE A 41 CG CD1 CD2 CE1 CE2 CZ REMARK 470 LYS A 261 CG CD CE NZ REMARK 470 LYS A 264 CG CD CE NZ REMARK 470 LYS A 266 CG CD CE NZ REMARK 470 TYR A 267 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 LEU A 270 CG CD1 CD2 REMARK 470 MET A 271 CG SD CE REMARK 470 MET A 343 CG SD CE REMARK 470 HIS A 344 CG ND1 CD2 CE1 NE2 REMARK 470 ASP A 345 CG OD1 OD2 REMARK 470 THR A 346 OG1 CG2 REMARK 470 LYS A 347 CG CD CE NZ REMARK 470 SER A 348 OG REMARK 470 ILE A 349 CG1 CG2 CD1 REMARK 470 GLN A 408 CG CD OE1 NE2 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 PHE A 115 30.15 -96.09 REMARK 500 ILE A 164 -55.30 -126.21 REMARK 500 ASP A 166 49.71 -93.34 REMARK 500 SER A 189 -168.31 -161.11 REMARK 500 HIS A 257 71.26 42.25 REMARK 500 PHE A 265 70.88 59.81 REMARK 500 LEU A 274 51.29 -96.08 REMARK 500 ARG A 356 45.13 -92.70 REMARK 500 TYR A 401 33.00 -97.71 REMARK 500 ASN A 409 52.51 -94.09 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 LEU A 357 PRO A 358 149.51 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NA A 602 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 374 O REMARK 620 2 SER A 378 OG 101.0 REMARK 620 N 1 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-64489 RELATED DB: EMDB REMARK 900 INFLUX CARRIER SUBSTRATE BOUND FORM DBREF 9UTD A 1 485 UNP Q96247 AUX1_ARATH 1 485 SEQRES 1 A 485 MET SER GLU GLY VAL GLU ALA ILE VAL ALA ASN ASP ASN SEQRES 2 A 485 GLY THR ASP GLN VAL ASN GLY ASN ARG THR GLY LYS ASP SEQRES 3 A 485 ASN GLU GLU HIS ASP GLY SER THR GLY SER ASN LEU SER SEQRES 4 A 485 ASN PHE LEU TRP HIS GLY GLY SER VAL TRP ASP ALA TRP SEQRES 5 A 485 PHE SER CYS ALA SER ASN GLN VAL ALA GLN VAL LEU LEU SEQRES 6 A 485 THR LEU PRO TYR SER PHE SER GLN LEU GLY MET LEU SER SEQRES 7 A 485 GLY ILE VAL LEU GLN ILE PHE TYR GLY LEU LEU GLY SER SEQRES 8 A 485 TRP THR ALA TYR LEU ILE SER VAL LEU TYR VAL GLU TYR SEQRES 9 A 485 ARG ALA ARG LYS GLU LYS GLU GLY LYS SER PHE LYS ASN SEQRES 10 A 485 HIS VAL ILE GLN TRP PHE GLU VAL LEU ASP GLY LEU LEU SEQRES 11 A 485 GLY SER TYR TRP LYS ALA LEU GLY LEU ALA PHE ASN CYS SEQRES 12 A 485 THR PHE LEU LEU PHE GLY SER VAL ILE GLN LEU ILE ALA SEQRES 13 A 485 CYS ALA SER ASN ILE TYR TYR ILE ASN ASP HIS LEU ASP SEQRES 14 A 485 LYS ARG THR TRP THR TYR ILE PHE GLY ALA CYS CYS ALA SEQRES 15 A 485 THR THR VAL PHE ILE PRO SER PHE HIS ASN TYR ARG ILE SEQRES 16 A 485 TRP SER PHE LEU GLY LEU GLY MET THR THR TYR THR ALA SEQRES 17 A 485 TRP TYR LEU ALA ILE ALA SER ILE ILE HIS GLY GLN ALA SEQRES 18 A 485 GLU GLY VAL LYS HIS SER GLY PRO THR LYS LEU VAL LEU SEQRES 19 A 485 TYR PHE THR GLY ALA THR ASN ILE LEU TYR THR PHE GLY SEQRES 20 A 485 GLY HIS ALA VAL THR VAL GLU ILE MET HIS ALA MET TRP SEQRES 21 A 485 LYS PRO GLN LYS PHE LYS TYR ILE TYR LEU MET ALA THR SEQRES 22 A 485 LEU TYR VAL PHE THR LEU THR ILE PRO SER ALA ALA ALA SEQRES 23 A 485 VAL TYR TRP ALA PHE GLY ASP ALA LEU LEU ASP HIS SER SEQRES 24 A 485 ASN ALA PHE SER LEU MET PRO LYS ASN ALA TRP ARG ASP SEQRES 25 A 485 ALA ALA VAL ILE LEU MET LEU ILE HIS GLN PHE ILE THR SEQRES 26 A 485 PHE GLY PHE ALA CYS THR PRO LEU TYR PHE VAL TRP GLU SEQRES 27 A 485 LYS VAL ILE GLY MET HIS ASP THR LYS SER ILE CYS LEU SEQRES 28 A 485 ARG ALA LEU ALA ARG LEU PRO VAL VAL ILE PRO ILE TRP SEQRES 29 A 485 PHE LEU ALA ILE ILE PHE PRO PHE PHE GLY PRO ILE ASN SEQRES 30 A 485 SER ALA VAL GLY ALA LEU LEU VAL SER PHE THR VAL TYR SEQRES 31 A 485 ILE ILE PRO SER LEU ALA HIS MET LEU THR TYR ARG SER SEQRES 32 A 485 ALA SER ALA ARG GLN ASN ALA ALA GLU LYS PRO PRO PHE SEQRES 33 A 485 PHE MET PRO SER TRP THR ALA MET TYR VAL LEU ASN ALA SEQRES 34 A 485 PHE VAL VAL VAL TRP VAL LEU ILE VAL GLY PHE GLY PHE SEQRES 35 A 485 GLY GLY TRP ALA SER VAL THR ASN PHE VAL ARG GLN VAL SEQRES 36 A 485 ASP THR PHE GLY LEU PHE ALA LYS CYS TYR GLN CYS LYS SEQRES 37 A 485 PRO ALA ALA ALA ALA ALA HIS ALA PRO VAL SER ALA LEU SEQRES 38 A 485 HIS HIS ARG LEU HET CFA A 601 13 HET NA A 602 1 HETNAM CFA (2,4-DICHLOROPHENOXY)ACETIC ACID HETNAM NA SODIUM ION HETSYN CFA 2,4-DICHLOROPHENOXYACETIC ACID FORMUL 2 CFA C8 H6 CL2 O3 FORMUL 3 NA NA 1+ HELIX 1 AA1 SER A 47 SER A 57 1 11 HELIX 2 AA2 ALA A 61 LEU A 65 5 5 HELIX 3 AA3 THR A 66 GLY A 75 1 10 HELIX 4 AA4 GLY A 75 GLU A 111 1 37 HELIX 5 AA5 GLN A 121 LEU A 130 1 10 HELIX 6 AA6 GLY A 131 ILE A 161 1 31 HELIX 7 AA7 TYR A 162 ILE A 164 5 3 HELIX 8 AA8 ASP A 169 ALA A 182 1 14 HELIX 9 AA9 TYR A 193 GLY A 219 1 27 HELIX 10 AB1 LYS A 231 PHE A 246 1 16 HELIX 11 AB2 GLY A 248 VAL A 253 1 6 HELIX 12 AB3 LYS A 266 TYR A 275 5 10 HELIX 13 AB4 VAL A 276 GLY A 292 1 17 HELIX 14 AB5 ASP A 293 LEU A 295 5 3 HELIX 15 AB6 ASN A 300 LEU A 304 5 5 HELIX 16 AB7 ASN A 308 PHE A 323 1 16 HELIX 17 AB8 PHE A 323 GLY A 342 1 20 HELIX 18 AB9 SER A 348 ARG A 356 1 9 HELIX 19 AC1 VAL A 360 PHE A 370 1 11 HELIX 20 AC2 GLY A 374 LEU A 384 1 11 HELIX 21 AC3 LEU A 384 VAL A 389 1 6 HELIX 22 AC4 TYR A 390 TYR A 401 1 12 HELIX 23 AC5 SER A 403 ASN A 409 1 7 HELIX 24 AC6 SER A 420 VAL A 438 1 19 HELIX 25 AC7 PHE A 440 GLY A 459 1 20 SSBOND 1 CYS A 464 CYS A 467 1555 1555 2.03 LINK O GLY A 374 NA NA A 602 1555 1555 2.77 LINK OG SER A 378 NA NA A 602 1555 1555 2.85 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 3367 LYS A 468 HETATM 3368 C1 CFA A 601 133.754 135.715 136.147 1.00 49.79 C HETATM 3369 C2 CFA A 601 133.792 135.113 134.752 1.00 49.79 C HETATM 3370 C1' CFA A 601 135.436 136.044 133.376 1.00 49.79 C HETATM 3371 C2' CFA A 601 136.370 137.040 133.644 1.00 49.79 C HETATM 3372 C3' CFA A 601 136.663 137.981 132.686 1.00 49.79 C HETATM 3373 C4' CFA A 601 136.029 137.929 131.472 1.00 49.79 C HETATM 3374 C5' CFA A 601 135.101 136.955 131.178 1.00 49.79 C HETATM 3375 CL3 CFA A 601 137.194 137.103 135.224 1.00 49.79 CL HETATM 3376 C6' CFA A 601 134.795 135.996 132.139 1.00 49.79 C HETATM 3377 O1 CFA A 601 133.611 136.955 136.296 1.00 49.79 O HETATM 3378 O2 CFA A 601 133.877 134.964 137.146 1.00 49.79 O HETATM 3379 O1' CFA A 601 135.125 135.082 134.338 1.00 49.79 O HETATM 3380 CL4 CFA A 601 136.411 139.146 130.227 1.00 49.79 CL HETATM 3381 NA NA A 602 122.854 138.182 130.005 1.00 30.00 NA CONECT 2636 3381 CONECT 2665 3381 CONECT 3330 3357 CONECT 3357 3330 CONECT 3368 3369 3377 3378 CONECT 3369 3368 3379 CONECT 3370 3371 3376 3379 CONECT 3371 3370 3372 3375 CONECT 3372 3371 3373 CONECT 3373 3372 3374 3380 CONECT 3374 3373 3376 CONECT 3375 3371 CONECT 3376 3370 3374 CONECT 3377 3368 CONECT 3378 3368 CONECT 3379 3369 3370 CONECT 3380 3373 CONECT 3381 2636 2665 MASTER 233 0 2 25 0 0 0 6 3380 1 18 38 END