HEADER SIGNALING PROTEIN 19-JAN-26 9TYG TITLE STRUCTURE OF THE MAP2K MEK1 IN AN INACTIVE CONFORMATION IN COMPLEX TITLE 2 WITH ITS SUBSTRATE MAPK ERK2 COMPND MOL_ID: 1; COMPND 2 MOLECULE: DUAL SPECIFICITY MITOGEN-ACTIVATED PROTEIN KINASE KINASE 1, COMPND 3 UNCHARACTERIZED PROTEIN,DUAL SPECIFICITY MITOGEN-ACTIVATED PROTEIN COMPND 4 KINASE KINASE 1; COMPND 5 CHAIN: A; COMPND 6 SYNONYM: MAP KINASE KINASE 1,MAPKK 1,MKK1,ERK ACTIVATOR KINASE 1, COMPND 7 MAPK/ERK KINASE 1,MEK 1; COMPND 8 EC: 2.7.12.2; COMPND 9 ENGINEERED: YES; COMPND 10 MUTATION: YES; COMPND 11 OTHER_DETAILS: PROTEIN CHIMERA OF HUMAN MEK1, EXCHANGING NATIVE KIM COMPND 12 (R3-11) BY GRA24 KIM (15 RESIDUES). ADDITION OF ACTIVATING MUTATIONS COMPND 13 ON SERINES IN ACTIVATION-LOOP: SER218ASP, SER222ASP.,PROTEIN CHIMERA COMPND 14 OF HUMAN MEK1, EXCHANGING NATIVE KIM (R3-11) BY GRA24 KIM (15 COMPND 15 RESIDUES). ADDITION OF ACTIVATING MUTATIONS ON SERINES IN ACTIVATION- COMPND 16 LOOP: SER218ASP, SER222ASP.,PROTEIN CHIMERA OF HUMAN MEK1, EXCHANGING COMPND 17 NATIVE KIM (R3-11) BY GRA24 KIM (15 RESIDUES). ADDITION OF ACTIVATING COMPND 18 MUTATIONS ON SERINES IN ACTIVATION-LOOP: SER218ASP, SER222ASP., COMPND 19 PROTEIN CHIMERA OF HUMAN MEK1, EXCHANGING NATIVE KIM (R3-11) BY GRA24 COMPND 20 KIM (15 RESIDUES). ADDITION OF ACTIVATING MUTATIONS ON SERINES IN COMPND 21 ACTIVATION-LOOP: SER218ASP, SER222ASP.,PROTEIN CHIMERA OF HUMAN MEK1, COMPND 22 EXCHANGING NATIVE KIM (R3-11) BY GRA24 KIM (15 RESIDUES). ADDITION OF COMPND 23 ACTIVATING MUTATIONS ON SERINES IN ACTIVATION-LOOP: SER218ASP, COMPND 24 SER222ASP.,PROTEIN CHIMERA OF HUMAN MEK1, EXCHANGING NATIVE KIM (R3- COMPND 25 11) BY GRA24 KIM (15 RESIDUES). ADDITION OF ACTIVATING MUTATIONS ON COMPND 26 SERINES IN ACTIVATION-LOOP: SER218ASP, SER222ASP.; COMPND 27 MOL_ID: 2; COMPND 28 MOLECULE: MITOGEN-ACTIVATED PROTEIN KINASE 1; COMPND 29 CHAIN: B; COMPND 30 SYNONYM: MAP KINASE 1,MAPK 1,ERT1,EXTRACELLULAR SIGNAL-REGULATED COMPND 31 KINASE 2,ERK-2,MAP KINASE ISOFORM P42,P42-MAPK,MITOGEN-ACTIVATED COMPND 32 PROTEIN KINASE 2,MAP KINASE 2,MAPK 2; COMPND 33 EC: 2.7.11.24; COMPND 34 ENGINEERED: YES; COMPND 35 MUTATION: YES; COMPND 36 OTHER_DETAILS: ERK2 WITH POINT MUTATION ON RESIDUE 185 TO A VALINE SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS, TOXOPLASMA GONDII ME49; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606, 508771; SOURCE 5 GENE: MAP2K1, MEK1, PRKMK1, TGME49_230180; SOURCE 6 EXPRESSION_SYSTEM: TRICHOPLUSIA NI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 7111; SOURCE 8 EXPRESSION_SYSTEM_CELL_LINE: HIGH FIVE; SOURCE 9 MOL_ID: 2; SOURCE 10 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 11 ORGANISM_COMMON: HUMAN; SOURCE 12 ORGANISM_TAXID: 9606; SOURCE 13 GENE: MAPK1, ERK2, PRKM1, PRKM2; SOURCE 14 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 15 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 16 EXPRESSION_SYSTEM_STRAIN: ROSETTA2 KEYWDS PROTEIN KINASES, PHOSPHORYL TRANSFER, MAPK, MAP2K, CANCER SIGNALING, KEYWDS 2 SIGNALING PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR J.VON VELSEN,P.JUYOUX,M.W.BOWLER REVDAT 1 11-FEB-26 9TYG 0 JRNL AUTH J.VON VELSEN,P.JUYOUX,N.PIASENTIN,H.FISHER,K.LAPOUGE, JRNL AUTH 2 O.VADAS,F.L.GERVASIO,M.W.BOWLER JRNL TITL MOLECULAR BASIS OF MITOGEN-ACTIVATED PROTEIN KINASE ERK2 JRNL TITL 2 ACTIVATION BY ITS UPSTREAM KINASE MEK1 JRNL REF BIORXIV 2026 JRNL REFN ISSN 2692-8205 JRNL DOI 10.64898/2026.01.19.700303 REMARK 2 REMARK 2 RESOLUTION. 2.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : CRYOSPARC, PHENIX, 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 : REAL REMARK 3 REFINEMENT PROTOCOL : RIGID BODY FIT 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) : 2.900 REMARK 3 NUMBER OF PARTICLES : 142124 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 9TYG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 19-JAN-26. REMARK 100 THE DEPOSITION ID IS D_1292153573. 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 : COMPLEX BETWEEN THE MAP2K MEK1 REMARK 245 AND ITS SUBSTRATE MAPK ERK2; REMARK 245 MEK1DDGRA; ERK2 REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 0.52 REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 7.50 REMARK 245 SAMPLE DETAILS : HUMAN MEK1 WITH KIM MOTIF REMARK 245 EXCHANGED TO GRA24 KIM (15 RESIDUES).; HUMAN ERK2 WITH POINT REMARK 245 MUTATION ON T185V. REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : 88517 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) : 2200.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : 2.70 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 : 270000 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 PRO A 2 REMARK 465 ASN A 18 REMARK 465 PRO A 19 REMARK 465 ALA A 20 REMARK 465 PRO A 21 REMARK 465 ASP A 22 REMARK 465 GLY A 23 REMARK 465 SER A 24 REMARK 465 ALA A 25 REMARK 465 VAL A 26 REMARK 465 ASN A 27 REMARK 465 GLY A 28 REMARK 465 THR A 29 REMARK 465 SER A 30 REMARK 465 SER A 31 REMARK 465 ALA A 32 REMARK 465 GLU A 33 REMARK 465 THR A 34 REMARK 465 ASN A 35 REMARK 465 LEU A 36 REMARK 465 GLU A 37 REMARK 465 ALA A 38 REMARK 465 LEU A 39 REMARK 465 GLN A 40 REMARK 465 LYS A 41 REMARK 465 LYS A 42 REMARK 465 LEU A 43 REMARK 465 GLU A 44 REMARK 465 GLU A 45 REMARK 465 LEU A 46 REMARK 465 GLU A 47 REMARK 465 LEU A 48 REMARK 465 ASP A 49 REMARK 465 GLU A 50 REMARK 465 GLN A 51 REMARK 465 GLN A 52 REMARK 465 ARG A 53 REMARK 465 LYS A 54 REMARK 465 ARG A 55 REMARK 465 LEU A 56 REMARK 465 GLU A 57 REMARK 465 ALA A 58 REMARK 465 PHE A 59 REMARK 465 LEU A 60 REMARK 465 THR A 61 REMARK 465 GLN A 62 REMARK 465 LYS A 63 REMARK 465 GLN A 64 REMARK 465 LYS A 65 REMARK 465 VAL A 66 REMARK 465 GLY A 67 REMARK 465 PRO A 272 REMARK 465 ASP A 273 REMARK 465 ALA A 274 REMARK 465 LYS A 275 REMARK 465 GLU A 276 REMARK 465 LEU A 277 REMARK 465 GLU A 278 REMARK 465 LEU A 279 REMARK 465 MET A 280 REMARK 465 PHE A 281 REMARK 465 GLY A 282 REMARK 465 CYS A 283 REMARK 465 GLN A 284 REMARK 465 VAL A 285 REMARK 465 GLU A 286 REMARK 465 GLY A 287 REMARK 465 ASP A 288 REMARK 465 ALA A 289 REMARK 465 ALA A 290 REMARK 465 GLU A 291 REMARK 465 THR A 292 REMARK 465 PRO A 293 REMARK 465 PRO A 294 REMARK 465 ARG A 295 REMARK 465 PRO A 296 REMARK 465 ARG A 297 REMARK 465 THR A 298 REMARK 465 PRO A 299 REMARK 465 GLY A 300 REMARK 465 ARG A 301 REMARK 465 PRO A 302 REMARK 465 LEU A 303 REMARK 465 SER A 304 REMARK 465 SER A 305 REMARK 465 TYR A 306 REMARK 465 GLY A 307 REMARK 465 MET A 308 REMARK 465 ASP A 309 REMARK 465 SER A 310 REMARK 465 ARG A 311 REMARK 465 PRO A 312 REMARK 465 GLN A 389 REMARK 465 PRO A 390 REMARK 465 SER A 391 REMARK 465 THR A 392 REMARK 465 PRO A 393 REMARK 465 THR A 394 REMARK 465 HIS A 395 REMARK 465 ALA A 396 REMARK 465 ALA A 397 REMARK 465 GLY A 398 REMARK 465 VAL A 399 REMARK 465 LEU A 400 REMARK 465 GLU A 401 REMARK 465 VAL A 402 REMARK 465 LEU A 403 REMARK 465 PHE A 404 REMARK 465 GLN A 405 REMARK 465 GLN B -2 REMARK 465 GLY B -1 REMARK 465 PRO B 0 REMARK 465 MET B 1 REMARK 465 ALA B 2 REMARK 465 ALA B 3 REMARK 465 ALA B 4 REMARK 465 ALA B 5 REMARK 465 ALA B 6 REMARK 465 ALA B 7 REMARK 465 GLY B 8 REMARK 465 ALA B 9 REMARK 465 GLY B 10 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 SER A 92 -60.84 -97.07 REMARK 500 ASP A 142 137.83 -171.28 REMARK 500 GLU A 188 16.49 56.36 REMARK 500 LYS A 189 -13.77 72.54 REMARK 500 HIS A 190 -16.42 -142.83 REMARK 500 TYR A 246 35.27 -99.13 REMARK 500 GLN A 249 -3.61 77.35 REMARK 500 ARG B 15 31.58 -140.92 REMARK 500 CYS B 161 -1.20 73.12 REMARK 500 ASP B 167 62.56 60.30 REMARK 500 HIS B 180 27.66 47.27 REMARK 500 ALA B 189 -7.82 75.68 REMARK 500 THR B 190 160.91 178.38 REMARK 500 PHE B 331 -135.15 54.36 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 SER A 92 HIS A 93 -148.86 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 MG A 502 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 LYS A 103 NZ REMARK 620 2 ASP A 214 OD2 95.7 REMARK 620 3 ADP A 501 O2B 79.5 99.5 REMARK 620 4 ADP A 501 O3B 140.4 76.0 64.4 REMARK 620 5 ADP A 501 O3A 110.4 144.8 64.3 68.9 REMARK 620 N 1 2 3 4 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-56419 RELATED DB: EMDB REMARK 900 OTHER RECONSTRUCTION ORIGINATE FROM THE SAME DATA COLLECTION REMARK 900 RELATED ID: EMD-56420 RELATED DB: EMDB REMARK 900 OTHER RECONSTRUCTION ORIGINATE FROM THE SAME DATA COLLECTION REMARK 900 RELATED ID: EMD-56418 RELATED DB: EMDB REMARK 900 STRUCTURE OF THE MAP2K MEK1 IN AN INACTIVE CONFORMATION IN COMPLEX REMARK 900 WITH ITS SUBSTRATE MAPK ERK2 DBREF 9TYG A 1 2 UNP Q02750 MP2K1_HUMAN 1 2 DBREF1 9TYG A 3 17 UNP A0A125YG37_TOXGM DBREF2 9TYG A A0A125YG37 441 455 DBREF 9TYG A 18 399 UNP Q02750 MP2K1_HUMAN 12 393 DBREF 9TYG B 1 360 UNP P28482 MK01_HUMAN 1 360 SEQADV 9TYG ASP A 224 UNP Q02750 SER 218 ENGINEERED MUTATION SEQADV 9TYG ASP A 228 UNP Q02750 SER 222 ENGINEERED MUTATION SEQADV 9TYG LEU A 400 UNP Q02750 EXPRESSION TAG SEQADV 9TYG GLU A 401 UNP Q02750 EXPRESSION TAG SEQADV 9TYG VAL A 402 UNP Q02750 EXPRESSION TAG SEQADV 9TYG LEU A 403 UNP Q02750 EXPRESSION TAG SEQADV 9TYG PHE A 404 UNP Q02750 EXPRESSION TAG SEQADV 9TYG GLN A 405 UNP Q02750 EXPRESSION TAG SEQADV 9TYG GLN B -2 UNP P28482 EXPRESSION TAG SEQADV 9TYG GLY B -1 UNP P28482 EXPRESSION TAG SEQADV 9TYG PRO B 0 UNP P28482 EXPRESSION TAG SEQADV 9TYG VAL B 185 UNP P28482 THR 185 ENGINEERED MUTATION SEQRES 1 A 405 MET PRO LEU LEU GLU ARG ARG GLY VAL SER GLU LEU PRO SEQRES 2 A 405 PRO LEU TYR ILE ASN PRO ALA PRO ASP GLY SER ALA VAL SEQRES 3 A 405 ASN GLY THR SER SER ALA GLU THR ASN LEU GLU ALA LEU SEQRES 4 A 405 GLN LYS LYS LEU GLU GLU LEU GLU LEU ASP GLU GLN GLN SEQRES 5 A 405 ARG LYS ARG LEU GLU ALA PHE LEU THR GLN LYS GLN LYS SEQRES 6 A 405 VAL GLY GLU LEU LYS ASP ASP ASP PHE GLU LYS ILE SER SEQRES 7 A 405 GLU LEU GLY ALA GLY ASN GLY GLY VAL VAL PHE LYS VAL SEQRES 8 A 405 SER HIS LYS PRO SER GLY LEU VAL MET ALA ARG LYS LEU SEQRES 9 A 405 ILE HIS LEU GLU ILE LYS PRO ALA ILE ARG ASN GLN ILE SEQRES 10 A 405 ILE ARG GLU LEU GLN VAL LEU HIS GLU CYS ASN SER PRO SEQRES 11 A 405 TYR ILE VAL GLY PHE TYR GLY ALA PHE TYR SER ASP GLY SEQRES 12 A 405 GLU ILE SER ILE CYS MET GLU HIS MET ASP GLY GLY SER SEQRES 13 A 405 LEU ASP GLN VAL LEU LYS LYS ALA GLY ARG ILE PRO GLU SEQRES 14 A 405 GLN ILE LEU GLY LYS VAL SER ILE ALA VAL ILE LYS GLY SEQRES 15 A 405 LEU THR TYR LEU ARG GLU LYS HIS LYS ILE MET HIS ARG SEQRES 16 A 405 ASP VAL LYS PRO SER ASN ILE LEU VAL ASN SER ARG GLY SEQRES 17 A 405 GLU ILE LYS LEU CYS ASP PHE GLY VAL SER GLY GLN LEU SEQRES 18 A 405 ILE ASP ASP MET ALA ASN ASP PHE VAL GLY THR ARG SER SEQRES 19 A 405 TYR MET SER PRO GLU ARG LEU GLN GLY THR HIS TYR SER SEQRES 20 A 405 VAL GLN SER ASP ILE TRP SER MET GLY LEU SER LEU VAL SEQRES 21 A 405 GLU MET ALA VAL GLY ARG TYR PRO ILE PRO PRO PRO ASP SEQRES 22 A 405 ALA LYS GLU LEU GLU LEU MET PHE GLY CYS GLN VAL GLU SEQRES 23 A 405 GLY ASP ALA ALA GLU THR PRO PRO ARG PRO ARG THR PRO SEQRES 24 A 405 GLY ARG PRO LEU SER SER TYR GLY MET ASP SER ARG PRO SEQRES 25 A 405 PRO MET ALA ILE PHE GLU LEU LEU ASP TYR ILE VAL ASN SEQRES 26 A 405 GLU PRO PRO PRO LYS LEU PRO SER GLY VAL PHE SER LEU SEQRES 27 A 405 GLU PHE GLN ASP PHE VAL ASN LYS CYS LEU ILE LYS ASN SEQRES 28 A 405 PRO ALA GLU ARG ALA ASP LEU LYS GLN LEU MET VAL HIS SEQRES 29 A 405 ALA PHE ILE LYS ARG SER ASP ALA GLU GLU VAL ASP PHE SEQRES 30 A 405 ALA GLY TRP LEU CYS SER THR ILE GLY LEU ASN GLN PRO SEQRES 31 A 405 SER THR PRO THR HIS ALA ALA GLY VAL LEU GLU VAL LEU SEQRES 32 A 405 PHE GLN SEQRES 1 B 363 GLN GLY PRO MET ALA ALA ALA ALA ALA ALA GLY ALA GLY SEQRES 2 B 363 PRO GLU MET VAL ARG GLY GLN VAL PHE ASP VAL GLY PRO SEQRES 3 B 363 ARG TYR THR ASN LEU SER TYR ILE GLY GLU GLY ALA TYR SEQRES 4 B 363 GLY MET VAL CYS SER ALA TYR ASP ASN VAL ASN LYS VAL SEQRES 5 B 363 ARG VAL ALA ILE LYS LYS ILE SER PRO PHE GLU HIS GLN SEQRES 6 B 363 THR TYR CYS GLN ARG THR LEU ARG GLU ILE LYS ILE LEU SEQRES 7 B 363 LEU ARG PHE ARG HIS GLU ASN ILE ILE GLY ILE ASN ASP SEQRES 8 B 363 ILE ILE ARG ALA PRO THR ILE GLU GLN MET LYS ASP VAL SEQRES 9 B 363 TYR ILE VAL GLN ASP LEU MET GLU THR ASP LEU TYR LYS SEQRES 10 B 363 LEU LEU LYS THR GLN HIS LEU SER ASN ASP HIS ILE CYS SEQRES 11 B 363 TYR PHE LEU TYR GLN ILE LEU ARG GLY LEU LYS TYR ILE SEQRES 12 B 363 HIS SER ALA ASN VAL LEU HIS ARG ASP LEU LYS PRO SER SEQRES 13 B 363 ASN LEU LEU LEU ASN THR THR CYS ASP LEU LYS ILE CYS SEQRES 14 B 363 ASP PHE GLY LEU ALA ARG VAL ALA ASP PRO ASP HIS ASP SEQRES 15 B 363 HIS THR GLY PHE LEU VAL GLU TYR VAL ALA THR ARG TRP SEQRES 16 B 363 TYR ARG ALA PRO GLU ILE MET LEU ASN SER LYS GLY TYR SEQRES 17 B 363 THR LYS SER ILE ASP ILE TRP SER VAL GLY CYS ILE LEU SEQRES 18 B 363 ALA GLU MET LEU SER ASN ARG PRO ILE PHE PRO GLY LYS SEQRES 19 B 363 HIS TYR LEU ASP GLN LEU ASN HIS ILE LEU GLY ILE LEU SEQRES 20 B 363 GLY SER PRO SER GLN GLU ASP LEU ASN CYS ILE ILE ASN SEQRES 21 B 363 LEU LYS ALA ARG ASN TYR LEU LEU SER LEU PRO HIS LYS SEQRES 22 B 363 ASN LYS VAL PRO TRP ASN ARG LEU PHE PRO ASN ALA ASP SEQRES 23 B 363 SER LYS ALA LEU ASP LEU LEU ASP LYS MET LEU THR PHE SEQRES 24 B 363 ASN PRO HIS LYS ARG ILE GLU VAL GLU GLN ALA LEU ALA SEQRES 25 B 363 HIS PRO TYR LEU GLU GLN TYR TYR ASP PRO SER ASP GLU SEQRES 26 B 363 PRO ILE ALA GLU ALA PRO PHE LYS PHE ASP MET GLU LEU SEQRES 27 B 363 ASP ASP LEU PRO LYS GLU LYS LEU LYS GLU LEU ILE PHE SEQRES 28 B 363 GLU GLU THR ALA ARG PHE GLN PRO GLY TYR ARG SER HET ADP A 501 39 HET MG A 502 1 HET ADP B 401 39 HETNAM ADP ADENOSINE-5'-DIPHOSPHATE HETNAM MG MAGNESIUM ION FORMUL 3 ADP 2(C10 H15 N5 O10 P2) FORMUL 4 MG MG 2+ HELIX 1 AA1 LEU A 4 GLY A 8 5 5 HELIX 2 AA2 LYS A 70 PHE A 74 5 5 HELIX 3 AA3 LYS A 110 LEU A 121 1 12 HELIX 4 AA4 GLN A 122 CYS A 127 5 6 HELIX 5 AA5 LEU A 157 GLY A 165 1 9 HELIX 6 AA6 PRO A 168 GLU A 188 1 21 HELIX 7 AA7 LYS A 198 SER A 200 5 3 HELIX 8 AA8 PHE A 215 SER A 218 5 4 HELIX 9 AA9 GLY A 219 ASP A 224 1 6 HELIX 10 AB1 SER A 237 GLY A 243 1 7 HELIX 11 AB2 GLN A 249 GLY A 265 1 17 HELIX 12 AB3 ALA A 315 ASN A 325 1 11 HELIX 13 AB4 SER A 337 CYS A 347 1 11 HELIX 14 AB5 ASP A 357 MET A 362 1 6 HELIX 15 AB6 HIS A 364 GLU A 373 1 10 HELIX 16 AB7 ASP A 376 ILE A 385 1 10 HELIX 17 AB8 PRO B 58 GLU B 60 5 3 HELIX 18 AB9 HIS B 61 LEU B 76 1 16 HELIX 19 AC1 LEU B 112 GLN B 119 1 8 HELIX 20 AC2 SER B 122 ALA B 143 1 22 HELIX 21 AC3 LYS B 151 SER B 153 5 3 HELIX 22 AC4 ASP B 167 ALA B 171 5 5 HELIX 23 AC5 ALA B 195 SER B 202 1 8 HELIX 24 AC6 LYS B 207 LEU B 222 1 16 HELIX 25 AC7 ASP B 235 LEU B 244 1 10 HELIX 26 AC8 SER B 248 ASN B 253 1 6 HELIX 27 AC9 ASN B 257 LEU B 267 1 11 HELIX 28 AD1 PRO B 274 PHE B 279 1 6 HELIX 29 AD2 ASP B 283 LEU B 294 1 12 HELIX 30 AD3 GLU B 303 HIS B 310 1 8 HELIX 31 AD4 PRO B 311 GLU B 314 5 4 HELIX 32 AD5 PRO B 339 THR B 351 1 13 SHEET 1 AA1 5 LYS A 76 GLU A 79 0 SHEET 2 AA1 5 VAL A 87 VAL A 91 -1 O LYS A 90 N SER A 78 SHEET 3 AA1 5 MET A 100 ILE A 105 -1 O ARG A 102 N PHE A 89 SHEET 4 AA1 5 ILE A 145 MET A 149 -1 O ILE A 145 N ILE A 105 SHEET 5 AA1 5 PHE A 135 TYR A 140 -1 N GLY A 137 O CYS A 148 SHEET 1 AA2 3 GLY A 155 SER A 156 0 SHEET 2 AA2 3 ILE A 202 VAL A 204 -1 O VAL A 204 N GLY A 155 SHEET 3 AA2 3 ILE A 210 LEU A 212 -1 O LYS A 211 N LEU A 203 SHEET 1 AA3 2 GLU B 12 MET B 13 0 SHEET 2 AA3 2 VAL B 18 PHE B 19 -1 O PHE B 19 N GLU B 12 SHEET 1 AA4 3 TYR B 25 THR B 26 0 SHEET 2 AA4 3 GLY B 37 ASP B 44 -1 O TYR B 43 N THR B 26 SHEET 3 AA4 3 TYR B 30 GLU B 33 -1 N ILE B 31 O VAL B 39 SHEET 1 AA5 5 TYR B 25 THR B 26 0 SHEET 2 AA5 5 GLY B 37 ASP B 44 -1 O TYR B 43 N THR B 26 SHEET 3 AA5 5 ARG B 50 ILE B 56 -1 O ILE B 53 N CYS B 40 SHEET 4 AA5 5 VAL B 101 ASP B 106 -1 O ILE B 103 N LYS B 54 SHEET 5 AA5 5 ILE B 86 ARG B 91 -1 N ASP B 88 O VAL B 104 SHEET 1 AA6 3 THR B 110 ASP B 111 0 SHEET 2 AA6 3 LEU B 155 LEU B 157 -1 O LEU B 157 N THR B 110 SHEET 3 AA6 3 LEU B 163 ILE B 165 -1 O LYS B 164 N LEU B 156 SHEET 1 AA7 2 VAL B 145 LEU B 146 0 SHEET 2 AA7 2 ARG B 172 VAL B 173 -1 O ARG B 172 N LEU B 146 LINK NZ LYS A 103 MG MG A 502 1555 1555 2.14 LINK OD2 ASP A 214 MG MG A 502 1555 1555 1.96 LINK O2B ADP A 501 MG MG A 502 1555 1555 2.49 LINK O3B ADP A 501 MG MG A 502 1555 1555 2.26 LINK O3A ADP A 501 MG MG A 502 1555 1555 2.08 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 CONECT 78810434 CONECT 259110434 CONECT1039510396103971039810402 CONECT1039610395 CONECT103971039510434 CONECT103981039510434 CONECT1039910400104011040210403 CONECT1040010399 CONECT1040110399 CONECT10402103951039910434 CONECT104031039910404 CONECT1040410403104051042210423 CONECT1040510404104061040710424 CONECT104061040510411 CONECT1040710405104081040910425 CONECT104081040710426 CONECT1040910407104101041110427 CONECT104101040910428 CONECT1041110406104091041210429 CONECT10412104111041310421 CONECT10413104121041410430 CONECT104141041310415 CONECT10415104141041610421 CONECT10416104151041710418 CONECT10417104161043110432 CONECT104181041610419 CONECT10419104181042010433 CONECT104201041910421 CONECT10421104121041510420 CONECT1042210404 CONECT1042310404 CONECT1042410405 CONECT1042510407 CONECT1042610408 CONECT1042710409 CONECT1042810410 CONECT1042910411 CONECT1043010413 CONECT1043110417 CONECT1043210417 CONECT1043310419 CONECT10434 788 25911039710398 CONECT1043410402 CONECT1043510436104371043810442 CONECT1043610435 CONECT1043710435 CONECT1043810435 CONECT1043910440104411044210443 CONECT1044010439 CONECT1044110439 CONECT104421043510439 CONECT104431043910444 CONECT1044410443104451046210463 CONECT1044510444104461044710464 CONECT104461044510451 CONECT1044710445104481044910465 CONECT104481044710466 CONECT1044910447104501045110467 CONECT104501044910468 CONECT1045110446104491045210469 CONECT10452104511045310461 CONECT10453104521045410470 CONECT104541045310455 CONECT10455104541045610461 CONECT10456104551045710458 CONECT10457104561047110472 CONECT104581045610459 CONECT10459104581046010473 CONECT104601045910461 CONECT10461104521045510460 CONECT1046210444 CONECT1046310444 CONECT1046410445 CONECT1046510447 CONECT1046610448 CONECT1046710449 CONECT1046810450 CONECT1046910451 CONECT1047010453 CONECT1047110457 CONECT1047210457 CONECT1047310459 MASTER 295 0 3 32 23 0 0 6 5235 2 82 60 END