HEADER TRANSFERASE 08-MAY-25 9UUX TITLE THE COMPLEX OF HUMAN PMEK1 AND ERK1 PT202 (ANP) COMPND MOL_ID: 1; COMPND 2 MOLECULE: DUAL SPECIFICITY MITOGEN-ACTIVATED PROTEIN KINASE KINASE 1; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: MAP KINASE KINASE 1,MAPKK 1,MKK1,ERK ACTIVATOR KINASE 1, COMPND 5 MAPK/ERK KINASE 1,MEK 1; COMPND 6 EC: 2.7.12.2; COMPND 7 ENGINEERED: YES; COMPND 8 OTHER_DETAILS: RECOMBINANT HUMAN MEK1 WITH ADDITIONAL C-TERMINAL HIS- COMPND 9 TAG EXPRESSED IN E. COLI, WITH PHOSPHORYLATION SITES ON S218 AND COMPND 10 S222.; COMPND 11 MOL_ID: 2; COMPND 12 MOLECULE: MITOGEN-ACTIVATED PROTEIN KINASE 3; COMPND 13 CHAIN: B; COMPND 14 SYNONYM: MAP KINASE 3,MAPK 3,ERT2,EXTRACELLULAR SIGNAL-REGULATED COMPND 15 KINASE 1,ERK-1,INSULIN-STIMULATED MAP2 KINASE,MAP KINASE ISOFORM P44, COMPND 16 P44-MAPK,MICROTUBULE-ASSOCIATED PROTEIN 2 KINASE,P44-ERK1; COMPND 17 EC: 2.7.11.24; COMPND 18 ENGINEERED: YES; COMPND 19 OTHER_DETAILS: RECOMBINANT HUMAN ERK1 WITH ADDITIONAL C-TERMINAL HIS- COMPND 20 TAG EXPRESSED IN E. COLI, WITH PHOSPHORYLATION SITE ON T202. SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: MAP2K1, MEK1, PRKMK1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 MOL_ID: 2; SOURCE 9 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 10 ORGANISM_COMMON: HUMAN; SOURCE 11 ORGANISM_TAXID: 9606; SOURCE 12 GENE: MAPK3, ERK1, PRKM3; SOURCE 13 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 14 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS MEK1. ERK1, COMPLEX, KINASE, MAPK PATHWAY, TRANSFERASE EXPDTA ELECTRON MICROSCOPY AUTHOR C.PENG,Y.SUN,S.LIU,F.ZHOU,Q.HU REVDAT 1 01-APR-26 9UUX 0 JRNL AUTH Y.SUN,C.PENG,S.LIU,F.ZHOU,G.HUANG,J.WANG,Q.HU JRNL TITL MECHANISTIC INSIGHT INTO THE PHOSPHORYLATION OF ERK BY MEK JRNL REF BIORXIV 2026 JRNL REFN ISSN 2692-8205 JRNL DOI 10.64898/2026.03.13.710243 REMARK 2 REMARK 2 RESOLUTION. 3.12 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : CRYOSPARC, COOT, UCSF CHIMERAX, PHENIX, REMARK 3 PHENIX, COOT, UCSF CHIMERAX, 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) : 3.120 REMARK 3 NUMBER OF PARTICLES : 555122 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 9UUX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBC ON 24-MAY-25. REMARK 100 THE DEPOSITION ID IS D_1300059228. 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 : THE COMPLEX OF HUMAN PMEK1 AND REMARK 245 ERK1 PT202 AT THE PRESENCE OF REMARK 245 AMPPNP 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 : GATAN K3 (6K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 1100.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 1800.00 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 : SPOT SCAN 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, 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 ALA A 14 REMARK 465 PRO A 15 REMARK 465 ASP A 16 REMARK 465 GLY A 17 REMARK 465 SER A 18 REMARK 465 ALA A 19 REMARK 465 VAL A 20 REMARK 465 ASN A 21 REMARK 465 GLY A 22 REMARK 465 THR A 23 REMARK 465 SER A 24 REMARK 465 SER A 25 REMARK 465 ALA A 26 REMARK 465 GLU A 27 REMARK 465 THR A 28 REMARK 465 ASN A 29 REMARK 465 LEU A 30 REMARK 465 GLU A 31 REMARK 465 ALA A 32 REMARK 465 GLU A 41 REMARK 465 LEU A 42 REMARK 465 ASP A 43 REMARK 465 GLU A 44 REMARK 465 GLN A 45 REMARK 465 GLN A 46 REMARK 465 ARG A 47 REMARK 465 LYS A 48 REMARK 465 ARG A 49 REMARK 465 LEU A 50 REMARK 465 GLU A 51 REMARK 465 ALA A 52 REMARK 465 PHE A 53 REMARK 465 LEU A 54 REMARK 465 THR A 55 REMARK 465 GLN A 56 REMARK 465 LYS A 57 REMARK 465 GLN A 58 REMARK 465 LYS A 59 REMARK 465 GLY A 276 REMARK 465 CYS A 277 REMARK 465 GLN A 278 REMARK 465 VAL A 279 REMARK 465 GLU A 280 REMARK 465 GLY A 281 REMARK 465 ASP A 282 REMARK 465 ALA A 283 REMARK 465 ALA A 284 REMARK 465 GLU A 285 REMARK 465 THR A 286 REMARK 465 PRO A 287 REMARK 465 PRO A 288 REMARK 465 ARG A 289 REMARK 465 PRO A 290 REMARK 465 ARG A 291 REMARK 465 THR A 292 REMARK 465 PRO A 293 REMARK 465 GLY A 294 REMARK 465 ARG A 295 REMARK 465 PRO A 296 REMARK 465 LEU A 297 REMARK 465 SER A 298 REMARK 465 SER A 299 REMARK 465 TYR A 300 REMARK 465 GLY A 301 REMARK 465 MET A 302 REMARK 465 ASP A 303 REMARK 465 SER A 304 REMARK 465 ARG A 305 REMARK 465 ILE A 379 REMARK 465 GLY A 380 REMARK 465 LEU A 381 REMARK 465 ASN A 382 REMARK 465 GLN A 383 REMARK 465 PRO A 384 REMARK 465 SER A 385 REMARK 465 THR A 386 REMARK 465 PRO A 387 REMARK 465 THR A 388 REMARK 465 HIS A 389 REMARK 465 ALA A 390 REMARK 465 ALA A 391 REMARK 465 GLY A 392 REMARK 465 VAL A 393 REMARK 465 LEU A 394 REMARK 465 GLU A 395 REMARK 465 HIS A 396 REMARK 465 HIS A 397 REMARK 465 HIS A 398 REMARK 465 HIS A 399 REMARK 465 HIS A 400 REMARK 465 HIS A 401 REMARK 465 HIS A 402 REMARK 465 HIS A 403 REMARK 465 HIS 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 GLN B 7 REMARK 465 GLY B 8 REMARK 465 GLY B 9 REMARK 465 GLY B 10 REMARK 465 GLY B 11 REMARK 465 GLY B 12 REMARK 465 GLU B 13 REMARK 465 PRO B 14 REMARK 465 ARG B 15 REMARK 465 ARG B 16 REMARK 465 THR B 17 REMARK 465 GLU B 18 REMARK 465 GLY B 19 REMARK 465 VAL B 20 REMARK 465 GLY B 21 REMARK 465 PRO B 22 REMARK 465 GLY B 23 REMARK 465 VAL B 24 REMARK 465 PRO B 25 REMARK 465 GLY B 26 REMARK 465 LEU B 376 REMARK 465 GLU B 377 REMARK 465 ALA B 378 REMARK 465 PRO B 379 REMARK 465 LEU B 380 REMARK 465 GLU B 381 REMARK 465 HIS B 382 REMARK 465 HIS B 383 REMARK 465 HIS B 384 REMARK 465 HIS B 385 REMARK 465 HIS B 386 REMARK 465 HIS B 387 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 LEU A 33 CG CD1 CD2 REMARK 470 GLN A 34 CG CD OE1 NE2 REMARK 470 LYS A 35 CG CD CE NZ REMARK 470 LYS A 36 CG CD CE NZ REMARK 470 LEU A 37 CG CD1 CD2 REMARK 470 GLU A 38 CG CD OE1 OE2 REMARK 470 GLU A 39 CG CD OE1 OE2 REMARK 470 LEU A 40 CG CD1 CD2 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 A 11 51.35 -91.94 REMARK 500 ALA A 106 -13.50 73.71 REMARK 500 ARG A 113 -2.87 65.30 REMARK 500 PRO A 124 3.54 -69.42 REMARK 500 ASP A 190 42.04 -140.74 REMARK 500 CYS A 207 -169.43 -129.20 REMARK 500 ASP A 208 68.32 61.18 REMARK 500 ASP A 217 51.38 -157.63 REMARK 500 ASN A 221 1.73 -156.15 REMARK 500 LYS B 32 40.83 -142.39 REMARK 500 ASP B 37 52.36 -91.28 REMARK 500 PRO B 40 47.35 -78.65 REMARK 500 PRO B 75 50.18 -91.15 REMARK 500 LEU B 133 44.39 -89.39 REMARK 500 HIS B 158 46.99 -83.30 REMARK 500 ALA B 160 47.46 -94.63 REMARK 500 ASN B 161 47.97 36.78 REMARK 500 PRO B 169 41.01 -78.99 REMARK 500 ASP B 184 64.23 60.74 REMARK 500 ALA B 191 32.89 -95.42 REMARK 500 PRO B 193 49.10 -87.87 REMARK 500 LYS B 220 -169.72 -160.16 REMARK 500 ASN B 270 49.75 -83.59 REMARK 500 PRO B 315 47.13 -81.98 REMARK 500 LEU B 330 52.38 -93.13 REMARK 500 PHE B 348 -168.74 -128.02 REMARK 500 ALA B 349 53.13 -95.87 REMARK 500 MET B 350 -153.14 53.94 REMARK 500 GLU B 351 50.20 -94.04 REMARK 500 ASP B 354 14.53 -141.31 REMARK 500 LYS B 357 47.77 -83.02 REMARK 500 THR B 368 50.07 -91.71 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 B 401 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN B 171 OD1 REMARK 620 2 ASP B 184 OD2 111.0 REMARK 620 3 ANP B 402 O1B 129.0 91.4 REMARK 620 N 1 2 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-64519 RELATED DB: EMDB REMARK 900 THE COMPLEX OF HUMAN PMEK1 AND ERK1 PT202 (ANP) DBREF 9UUX A 1 393 UNP Q02750 MP2K1_HUMAN 1 393 DBREF 9UUX B 1 379 UNP P27361 MK03_HUMAN 1 379 SEQADV 9UUX LEU A 394 UNP Q02750 EXPRESSION TAG SEQADV 9UUX GLU A 395 UNP Q02750 EXPRESSION TAG SEQADV 9UUX HIS A 396 UNP Q02750 EXPRESSION TAG SEQADV 9UUX HIS A 397 UNP Q02750 EXPRESSION TAG SEQADV 9UUX HIS A 398 UNP Q02750 EXPRESSION TAG SEQADV 9UUX HIS A 399 UNP Q02750 EXPRESSION TAG SEQADV 9UUX HIS A 400 UNP Q02750 EXPRESSION TAG SEQADV 9UUX HIS A 401 UNP Q02750 EXPRESSION TAG SEQADV 9UUX HIS A 402 UNP Q02750 EXPRESSION TAG SEQADV 9UUX HIS A 403 UNP Q02750 EXPRESSION TAG SEQADV 9UUX HIS B 0 UNP P27361 EXPRESSION TAG SEQADV 9UUX LEU B 380 UNP P27361 EXPRESSION TAG SEQADV 9UUX GLU B 381 UNP P27361 EXPRESSION TAG SEQADV 9UUX HIS B 382 UNP P27361 EXPRESSION TAG SEQADV 9UUX HIS B 383 UNP P27361 EXPRESSION TAG SEQADV 9UUX HIS B 384 UNP P27361 EXPRESSION TAG SEQADV 9UUX HIS B 385 UNP P27361 EXPRESSION TAG SEQADV 9UUX HIS B 386 UNP P27361 EXPRESSION TAG SEQADV 9UUX HIS B 387 UNP P27361 EXPRESSION TAG SEQRES 1 A 403 MET PRO LYS LYS LYS PRO THR PRO ILE GLN LEU ASN PRO SEQRES 2 A 403 ALA PRO ASP GLY SER ALA VAL ASN GLY THR SER SER ALA SEQRES 3 A 403 GLU THR ASN LEU GLU ALA LEU GLN LYS LYS LEU GLU GLU SEQRES 4 A 403 LEU GLU LEU ASP GLU GLN GLN ARG LYS ARG LEU GLU ALA SEQRES 5 A 403 PHE LEU THR GLN LYS GLN LYS VAL GLY GLU LEU LYS ASP SEQRES 6 A 403 ASP ASP PHE GLU LYS ILE SER GLU LEU GLY ALA GLY ASN SEQRES 7 A 403 GLY GLY VAL VAL PHE LYS VAL SER HIS LYS PRO SER GLY SEQRES 8 A 403 LEU VAL MET ALA ARG LYS LEU ILE HIS LEU GLU ILE LYS SEQRES 9 A 403 PRO ALA ILE ARG ASN GLN ILE ILE ARG GLU LEU GLN VAL SEQRES 10 A 403 LEU HIS GLU CYS ASN SER PRO TYR ILE VAL GLY PHE TYR SEQRES 11 A 403 GLY ALA PHE TYR SER ASP GLY GLU ILE SER ILE CYS MET SEQRES 12 A 403 GLU HIS MET ASP GLY GLY SER LEU ASP GLN VAL LEU LYS SEQRES 13 A 403 LYS ALA GLY ARG ILE PRO GLU GLN ILE LEU GLY LYS VAL SEQRES 14 A 403 SER ILE ALA VAL ILE LYS GLY LEU THR TYR LEU ARG GLU SEQRES 15 A 403 LYS HIS LYS ILE MET HIS ARG ASP VAL LYS PRO SER ASN SEQRES 16 A 403 ILE LEU VAL ASN SER ARG GLY GLU ILE LYS LEU CYS ASP SEQRES 17 A 403 PHE GLY VAL SER GLY GLN LEU ILE ASP SEP MET ALA ASN SEQRES 18 A 403 SEP PHE VAL GLY THR ARG SER TYR MET SER PRO GLU ARG SEQRES 19 A 403 LEU GLN GLY THR HIS TYR SER VAL GLN SER ASP ILE TRP SEQRES 20 A 403 SER MET GLY LEU SER LEU VAL GLU MET ALA VAL GLY ARG SEQRES 21 A 403 TYR PRO ILE PRO PRO PRO ASP ALA LYS GLU LEU GLU LEU SEQRES 22 A 403 MET PHE GLY CYS GLN VAL GLU GLY ASP ALA ALA GLU THR SEQRES 23 A 403 PRO PRO ARG PRO ARG THR PRO GLY ARG PRO LEU SER SER SEQRES 24 A 403 TYR GLY MET ASP SER ARG PRO PRO MET ALA ILE PHE GLU SEQRES 25 A 403 LEU LEU ASP TYR ILE VAL ASN GLU PRO PRO PRO LYS LEU SEQRES 26 A 403 PRO SER GLY VAL PHE SER LEU GLU PHE GLN ASP PHE VAL SEQRES 27 A 403 ASN LYS CYS LEU ILE LYS ASN PRO ALA GLU ARG ALA ASP SEQRES 28 A 403 LEU LYS GLN LEU MET VAL HIS ALA PHE ILE LYS ARG SER SEQRES 29 A 403 ASP ALA GLU GLU VAL ASP PHE ALA GLY TRP LEU CYS SER SEQRES 30 A 403 THR ILE GLY LEU ASN GLN PRO SER THR PRO THR HIS ALA SEQRES 31 A 403 ALA GLY VAL LEU GLU HIS HIS HIS HIS HIS HIS HIS HIS SEQRES 1 B 388 HIS MET ALA ALA ALA ALA ALA GLN GLY GLY GLY GLY GLY SEQRES 2 B 388 GLU PRO ARG ARG THR GLU GLY VAL GLY PRO GLY VAL PRO SEQRES 3 B 388 GLY GLU VAL GLU MET VAL LYS GLY GLN PRO PHE ASP VAL SEQRES 4 B 388 GLY PRO ARG TYR THR GLN LEU GLN TYR ILE GLY GLU GLY SEQRES 5 B 388 ALA TYR GLY MET VAL SER SER ALA TYR ASP HIS VAL ARG SEQRES 6 B 388 LYS THR ARG VAL ALA ILE LYS LYS ILE SER PRO PHE GLU SEQRES 7 B 388 HIS GLN THR TYR CYS GLN ARG THR LEU ARG GLU ILE GLN SEQRES 8 B 388 ILE LEU LEU ARG PHE ARG HIS GLU ASN VAL ILE GLY ILE SEQRES 9 B 388 ARG ASP ILE LEU ARG ALA SER THR LEU GLU ALA MET ARG SEQRES 10 B 388 ASP VAL TYR ILE VAL GLN ASP LEU MET GLU THR ASP LEU SEQRES 11 B 388 TYR LYS LEU LEU LYS SER GLN GLN LEU SER ASN ASP HIS SEQRES 12 B 388 ILE CYS TYR PHE LEU TYR GLN ILE LEU ARG GLY LEU LYS SEQRES 13 B 388 TYR ILE HIS SER ALA ASN VAL LEU HIS ARG ASP LEU LYS SEQRES 14 B 388 PRO SER ASN LEU LEU ILE ASN THR THR CYS ASP LEU LYS SEQRES 15 B 388 ILE CYS ASP PHE GLY LEU ALA ARG ILE ALA ASP PRO GLU SEQRES 16 B 388 HIS ASP HIS THR GLY PHE LEU TPO GLU TYR VAL ALA THR SEQRES 17 B 388 ARG TRP TYR ARG ALA PRO GLU ILE MET LEU ASN SER LYS SEQRES 18 B 388 GLY TYR THR LYS SER ILE ASP ILE TRP SER VAL GLY CYS SEQRES 19 B 388 ILE LEU ALA GLU MET LEU SER ASN ARG PRO ILE PHE PRO SEQRES 20 B 388 GLY LYS HIS TYR LEU ASP GLN LEU ASN HIS ILE LEU GLY SEQRES 21 B 388 ILE LEU GLY SER PRO SER GLN GLU ASP LEU ASN CYS ILE SEQRES 22 B 388 ILE ASN MET LYS ALA ARG ASN TYR LEU GLN SER LEU PRO SEQRES 23 B 388 SER LYS THR LYS VAL ALA TRP ALA LYS LEU PHE PRO LYS SEQRES 24 B 388 SER ASP SER LYS ALA LEU ASP LEU LEU ASP ARG MET LEU SEQRES 25 B 388 THR PHE ASN PRO ASN LYS ARG ILE THR VAL GLU GLU ALA SEQRES 26 B 388 LEU ALA HIS PRO TYR LEU GLU GLN TYR TYR ASP PRO THR SEQRES 27 B 388 ASP GLU PRO VAL ALA GLU GLU PRO PHE THR PHE ALA MET SEQRES 28 B 388 GLU LEU ASP ASP LEU PRO LYS GLU ARG LEU LYS GLU LEU SEQRES 29 B 388 ILE PHE GLN GLU THR ALA ARG PHE GLN PRO GLY VAL LEU SEQRES 30 B 388 GLU ALA PRO LEU GLU HIS HIS HIS HIS HIS HIS MODRES 9UUX SEP A 218 SER MODIFIED RESIDUE MODRES 9UUX SEP A 222 SER MODIFIED RESIDUE MODRES 9UUX TPO B 202 THR MODIFIED RESIDUE HET SEP A 218 10 HET SEP A 222 10 HET TPO B 202 11 HET ANP A 501 31 HET MG B 401 1 HET ANP B 402 31 HETNAM SEP PHOSPHOSERINE HETNAM TPO PHOSPHOTHREONINE HETNAM ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER HETNAM MG MAGNESIUM ION HETSYN SEP PHOSPHONOSERINE HETSYN TPO PHOSPHONOTHREONINE FORMUL 1 SEP 2(C3 H8 N O6 P) FORMUL 2 TPO C4 H10 N O6 P FORMUL 3 ANP 2(C10 H17 N6 O12 P3) FORMUL 4 MG MG 2+ HELIX 1 AA1 LYS A 64 ASP A 66 5 3 HELIX 2 AA2 ILE A 107 ILE A 112 1 6 HELIX 3 AA3 GLU A 114 HIS A 119 1 6 HELIX 4 AA4 SER A 150 GLY A 159 1 10 HELIX 5 AA5 PRO A 162 LYS A 185 1 24 HELIX 6 AA6 THR A 226 MET A 230 5 5 HELIX 7 AA7 SER A 231 GLN A 236 1 6 HELIX 8 AA8 SER A 241 ALA A 257 1 17 HELIX 9 AA9 ASP A 267 PHE A 275 1 9 HELIX 10 AB1 ALA A 309 ASN A 319 1 11 HELIX 11 AB2 LEU A 332 CYS A 341 1 10 HELIX 12 AB3 ASP A 351 VAL A 357 1 7 HELIX 13 AB4 HIS A 358 ALA A 366 1 9 HELIX 14 AB5 ASP A 370 THR A 378 1 9 HELIX 15 AB6 HIS B 78 LEU B 93 1 16 HELIX 16 AB7 LEU B 129 LEU B 133 1 5 HELIX 17 AB8 SER B 139 HIS B 158 1 20 HELIX 18 AB9 ALA B 212 ASN B 218 1 7 HELIX 19 AC1 ASP B 227 ASN B 241 1 15 HELIX 20 AC2 HIS B 249 GLY B 262 1 14 HELIX 21 AC3 SER B 265 ASN B 270 1 6 HELIX 22 AC4 LYS B 276 SER B 283 1 8 HELIX 23 AC5 ALA B 291 PHE B 296 1 6 HELIX 24 AC6 ASP B 300 ASP B 308 1 9 HELIX 25 AC7 THR B 320 ALA B 326 1 7 HELIX 26 AC8 HIS B 327 GLU B 331 5 5 HELIX 27 AC9 ASP B 335 GLU B 339 5 5 HELIX 28 AD1 ARG B 359 THR B 368 1 10 SHEET 1 AA1 5 PHE A 68 GLY A 75 0 SHEET 2 AA1 5 VAL A 81 HIS A 87 -1 O VAL A 82 N GLY A 75 SHEET 3 AA1 5 LEU A 92 HIS A 100 -1 O ARG A 96 N PHE A 83 SHEET 4 AA1 5 GLU A 138 GLU A 144 -1 O ILE A 139 N ILE A 99 SHEET 5 AA1 5 GLY A 131 SER A 135 -1 N GLY A 131 O CYS A 142 SHEET 1 AA2 2 ILE A 186 MET A 187 0 SHEET 2 AA2 2 GLY A 213 GLN A 214 -1 O GLY A 213 N MET A 187 SHEET 1 AA3 2 ILE A 196 VAL A 198 0 SHEET 2 AA3 2 ILE A 204 LEU A 206 -1 O LYS A 205 N LEU A 197 SHEET 1 AA4 2 GLU B 29 MET B 30 0 SHEET 2 AA4 2 PRO B 35 PHE B 36 -1 O PHE B 36 N GLU B 29 SHEET 1 AA5 5 TYR B 42 TYR B 47 0 SHEET 2 AA5 5 SER B 57 ASP B 61 -1 O TYR B 60 N THR B 43 SHEET 3 AA5 5 ARG B 67 ILE B 73 -1 O ILE B 70 N SER B 57 SHEET 4 AA5 5 VAL B 118 ASP B 123 -1 O VAL B 118 N ILE B 73 SHEET 5 AA5 5 ILE B 103 LEU B 107 -1 N ARG B 104 O VAL B 121 SHEET 1 AA6 3 THR B 127 ASP B 128 0 SHEET 2 AA6 3 LEU B 172 ILE B 174 -1 O ILE B 174 N THR B 127 SHEET 3 AA6 3 LEU B 180 ILE B 182 -1 O LYS B 181 N LEU B 173 LINK C ASP A 217 N SEP A 218 1555 1555 1.34 LINK C SEP A 218 N MET A 219 1555 1555 1.33 LINK C ASN A 221 N SEP A 222 1555 1555 1.31 LINK C SEP A 222 N PHE A 223 1555 1555 1.30 LINK C LEU B 201 N TPO B 202 1555 1555 1.31 LINK C TPO B 202 N GLU B 203 1555 1555 1.32 LINK OD1 ASN B 171 MG MG B 401 1555 1555 1.94 LINK OD2 ASP B 184 MG MG B 401 1555 1555 1.99 LINK MG MG B 401 O1B ANP B 402 1555 1555 1.86 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 1348 1354 CONECT 1354 1348 1355 CONECT 1355 1354 1356 1358 CONECT 1356 1355 1357 CONECT 1357 1356 1360 CONECT 1358 1355 1359 1364 CONECT 1359 1358 CONECT 1360 1357 1361 1362 1363 CONECT 1361 1360 CONECT 1362 1360 CONECT 1363 1360 CONECT 1364 1358 CONECT 1379 1385 CONECT 1385 1379 1386 CONECT 1386 1385 1387 1389 CONECT 1387 1386 1388 CONECT 1388 1387 1391 CONECT 1389 1386 1390 1395 CONECT 1390 1389 CONECT 1391 1388 1392 1393 1394 CONECT 1392 1391 CONECT 1393 1391 CONECT 1394 1391 CONECT 1395 1389 CONECT 3597 5281 CONECT 3697 5281 CONECT 3826 3832 CONECT 3832 3826 3833 CONECT 3833 3832 3834 3841 CONECT 3834 3833 3835 3836 CONECT 3835 3834 CONECT 3836 3834 3837 CONECT 3837 3836 3838 3839 3840 CONECT 3838 3837 CONECT 3839 3837 CONECT 3840 3837 CONECT 3841 3833 3842 3843 CONECT 3842 3841 CONECT 3843 3841 CONECT 5250 5251 5252 5253 5257 CONECT 5251 5250 CONECT 5252 5250 CONECT 5253 5250 CONECT 5254 5255 5256 5257 5261 CONECT 5255 5254 CONECT 5256 5254 CONECT 5257 5250 5254 CONECT 5258 5259 5260 5261 5262 CONECT 5259 5258 CONECT 5260 5258 CONECT 5261 5254 5258 CONECT 5262 5258 5263 CONECT 5263 5262 5264 CONECT 5264 5263 5265 5266 CONECT 5265 5264 5270 CONECT 5266 5264 5267 5268 CONECT 5267 5266 CONECT 5268 5266 5269 5270 CONECT 5269 5268 CONECT 5270 5265 5268 5271 CONECT 5271 5270 5272 5280 CONECT 5272 5271 5273 CONECT 5273 5272 5274 CONECT 5274 5273 5275 5280 CONECT 5275 5274 5276 5277 CONECT 5276 5275 CONECT 5277 5275 5278 CONECT 5278 5277 5279 CONECT 5279 5278 5280 CONECT 5280 5271 5274 5279 CONECT 5281 3597 3697 5287 CONECT 5282 5283 5284 5285 5289 CONECT 5283 5282 CONECT 5284 5282 CONECT 5285 5282 CONECT 5286 5287 5288 5289 5293 CONECT 5287 5281 5286 CONECT 5288 5286 CONECT 5289 5282 5286 CONECT 5290 5291 5292 5293 5294 CONECT 5291 5290 CONECT 5292 5290 CONECT 5293 5286 5290 CONECT 5294 5290 5295 CONECT 5295 5294 5296 CONECT 5296 5295 5297 5298 CONECT 5297 5296 5302 CONECT 5298 5296 5299 5300 CONECT 5299 5298 CONECT 5300 5298 5301 5302 CONECT 5301 5300 CONECT 5302 5297 5300 5303 CONECT 5303 5302 5304 5312 CONECT 5304 5303 5305 CONECT 5305 5304 5306 CONECT 5306 5305 5307 5312 CONECT 5307 5306 5308 5309 CONECT 5308 5307 CONECT 5309 5307 5310 CONECT 5310 5309 5311 CONECT 5311 5310 5312 CONECT 5312 5303 5306 5311 MASTER 316 0 6 28 19 0 0 6 5310 2 102 61 END