HEADER TRANSFERASE 08-MAY-25 9UUR TITLE THE COMPLEX OF HUMAN PMEK1 AND UERK1 (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 MOL_ID: 2; COMPND 9 MOLECULE: MITOGEN-ACTIVATED PROTEIN KINASE 3; COMPND 10 CHAIN: B; COMPND 11 SYNONYM: MAP KINASE 3,MAPK 3,ERT2,EXTRACELLULAR SIGNAL-REGULATED COMPND 12 KINASE 1,ERK-1,INSULIN-STIMULATED MAP2 KINASE,MAP KINASE ISOFORM P44, COMPND 13 P44-MAPK,MICROTUBULE-ASSOCIATED PROTEIN 2 KINASE,P44-ERK1; COMPND 14 EC: 2.7.11.24; COMPND 15 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: 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 9UUR 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. 3.36 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) : 3.360 REMARK 3 NUMBER OF PARTICLES : 319939 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 9UUR 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_1300059122. 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 UERK1 AT THE PRESENCE OF 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 LYS A 3 REMARK 465 PRO A 21 REMARK 465 ALA A 22 REMARK 465 PRO A 23 REMARK 465 ASP A 24 REMARK 465 GLY A 25 REMARK 465 SER A 26 REMARK 465 ALA A 27 REMARK 465 VAL A 28 REMARK 465 ASN A 29 REMARK 465 GLY A 30 REMARK 465 ALA A 39A REMARK 465 LEU A 39B REMARK 465 GLN A 39C REMARK 465 LYS A 39D REMARK 465 LYS A 39E REMARK 465 LEU A 39F REMARK 465 GLU A 39G REMARK 465 GLU A 39H REMARK 465 LEU A 39I REMARK 465 GLU A 39J REMARK 465 LEU A 39K REMARK 465 ASP A 39L REMARK 465 GLU A 39M REMARK 465 GLN A 39N REMARK 465 GLN A 39O REMARK 465 ARG A 39P REMARK 465 LYS A 39Q REMARK 465 ARG A 39R REMARK 465 LEU A 39S REMARK 465 GLU A 39T REMARK 465 ALA A 39U REMARK 465 PHE A 39V REMARK 465 LEU A 39W REMARK 465 THR A 39X REMARK 465 GLN A 39Y REMARK 465 LYS A 39Z REMARK 465 GLN A 40A REMARK 465 LYS A 40B 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 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 VAL B 375 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 THR A 31 OG1 CG2 REMARK 470 SER A 32 OG REMARK 470 SER A 33 OG REMARK 470 GLU A 35 CG CD OE1 OE2 REMARK 470 THR A 36 OG1 CG2 REMARK 470 ASN A 37 CG OD1 ND2 REMARK 470 LEU A 38 CG CD1 CD2 REMARK 470 GLU A 39 CG CD OE1 OE2 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 53.89 -93.27 REMARK 500 SER A 32 -101.45 57.29 REMARK 500 ALA A 106 -5.18 72.13 REMARK 500 GLU A 120 26.36 49.70 REMARK 500 ASP A 190 39.43 -156.13 REMARK 500 ASP A 208 73.83 60.14 REMARK 500 ASN A 221 85.84 -158.21 REMARK 500 MET A 308 70.10 59.05 REMARK 500 VAL B 31 -63.14 -121.83 REMARK 500 LYS B 32 42.86 -143.38 REMARK 500 PRO B 40 49.50 -80.57 REMARK 500 PRO B 75 50.65 -90.48 REMARK 500 LEU B 133 52.57 -90.12 REMARK 500 LYS B 134 -16.13 -144.12 REMARK 500 SER B 159 -34.28 -131.02 REMARK 500 ALA B 160 45.50 -93.44 REMARK 500 ASN B 161 47.90 38.05 REMARK 500 ARG B 165 -2.91 65.93 REMARK 500 PRO B 169 45.01 -77.77 REMARK 500 LEU B 187 87.95 -64.52 REMARK 500 ALA B 191 31.44 -98.25 REMARK 500 LYS B 224 0.33 -66.75 REMARK 500 ASN B 270 49.40 -87.08 REMARK 500 SER B 283 35.35 -97.56 REMARK 500 PRO B 315 44.52 -81.37 REMARK 500 LEU B 330 57.40 -96.02 REMARK 500 PHE B 348 -158.63 -157.02 REMARK 500 ALA B 349 107.90 -43.79 REMARK 500 GLU B 351 47.28 -152.81 REMARK 500 LEU B 352 -42.89 63.85 REMARK 500 LYS B 357 49.82 -83.16 REMARK 500 THR B 368 52.50 -90.75 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 ASN B 171 ND2 51.1 REMARK 620 3 ASP B 184 OD2 133.4 107.6 REMARK 620 4 ANP B 402 O2B 124.7 154.5 91.7 REMARK 620 N 1 2 3 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-64516 RELATED DB: EMDB REMARK 900 THE COMPLEX OF HUMAN PMEK1 AND UERK1 (ANP) DBREF 9UUR A 1 393 UNP Q02750 MP2K1_HUMAN 1 393 DBREF 9UUR B 1 379 UNP P27361 MK03_HUMAN 1 379 SEQADV 9UUR LEU A 394 UNP Q02750 EXPRESSION TAG SEQADV 9UUR GLU A 395 UNP Q02750 EXPRESSION TAG SEQADV 9UUR HIS A 396 UNP Q02750 EXPRESSION TAG SEQADV 9UUR HIS A 397 UNP Q02750 EXPRESSION TAG SEQADV 9UUR HIS A 398 UNP Q02750 EXPRESSION TAG SEQADV 9UUR HIS A 399 UNP Q02750 EXPRESSION TAG SEQADV 9UUR HIS A 400 UNP Q02750 EXPRESSION TAG SEQADV 9UUR HIS A 401 UNP Q02750 EXPRESSION TAG SEQADV 9UUR HIS A 402 UNP Q02750 EXPRESSION TAG SEQADV 9UUR HIS A 403 UNP Q02750 EXPRESSION TAG SEQADV 9UUR HIS B 0 UNP P27361 EXPRESSION TAG SEQADV 9UUR LEU B 380 UNP P27361 EXPRESSION TAG SEQADV 9UUR GLU B 381 UNP P27361 EXPRESSION TAG SEQADV 9UUR HIS B 382 UNP P27361 EXPRESSION TAG SEQADV 9UUR HIS B 383 UNP P27361 EXPRESSION TAG SEQADV 9UUR HIS B 384 UNP P27361 EXPRESSION TAG SEQADV 9UUR HIS B 385 UNP P27361 EXPRESSION TAG SEQADV 9UUR HIS B 386 UNP P27361 EXPRESSION TAG SEQADV 9UUR 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 THR 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 9UUR SEP A 218 SER MODIFIED RESIDUE MODRES 9UUR SEP A 222 SER MODIFIED RESIDUE HET SEP A 218 10 HET SEP A 222 10 HET ANP A 501 31 HET MG B 401 1 HET ANP B 402 31 HETNAM SEP PHOSPHOSERINE HETNAM ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER HETNAM MG MAGNESIUM ION HETSYN SEP PHOSPHONOSERINE FORMUL 1 SEP 2(C3 H8 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 ARG A 108 LEU A 118 1 11 HELIX 3 AA3 SER A 150 GLY A 159 1 10 HELIX 4 AA4 PRO A 162 LYS A 185 1 24 HELIX 5 AA5 THR A 226 MET A 230 5 5 HELIX 6 AA6 SER A 231 GLN A 236 1 6 HELIX 7 AA7 VAL A 242 ALA A 257 1 16 HELIX 8 AA8 ASP A 267 PHE A 275 1 9 HELIX 9 AA9 ALA A 309 ASN A 319 1 11 HELIX 10 AB1 LEU A 332 CYS A 341 1 10 HELIX 11 AB2 ASP A 351 VAL A 357 1 7 HELIX 12 AB3 HIS A 358 GLU A 367 1 10 HELIX 13 AB4 ASP A 370 SER A 377 1 8 HELIX 14 AB5 HIS B 78 LEU B 93 1 16 HELIX 15 AB6 LEU B 129 LEU B 133 1 5 HELIX 16 AB7 SER B 139 HIS B 158 1 20 HELIX 17 AB8 ALA B 212 ASN B 218 1 7 HELIX 18 AB9 THR B 223 ILE B 226 5 4 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 ASN B 274 SER B 283 1 10 HELIX 23 AC5 ALA B 291 PHE B 296 1 6 HELIX 24 AC6 ASP B 300 MET B 310 1 11 HELIX 25 AC7 THR B 320 LEU B 325 1 6 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 GLU B 358 THR B 368 1 11 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 MET A 94 N VAL A 85 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 PHE A 133 O SER A 140 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 THR B 66 ILE B 73 -1 O THR B 66 N ASP B 61 SHEET 4 AA5 5 VAL B 118 GLN B 122 -1 O VAL B 118 N ILE B 73 SHEET 5 AA5 5 ASP B 105 LEU B 107 -1 N LEU B 107 O TYR B 119 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 1.31 LINK C SEP A 218 N MET A 219 1555 1555 1.32 LINK C ASN A 221 N SEP A 222 1555 1555 1.33 LINK C SEP A 222 N PHE A 223 1555 1555 1.33 LINK OD1 ASN B 171 MG MG B 401 1555 1555 1.93 LINK ND2 ASN B 171 MG MG B 401 1555 1555 2.88 LINK OD2 ASP B 184 MG MG B 401 1555 1555 2.01 LINK MG MG B 401 O2B ANP B 402 1555 1555 1.87 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 1337 1343 CONECT 1343 1337 1344 CONECT 1344 1343 1345 1347 CONECT 1345 1344 1346 CONECT 1346 1345 1349 CONECT 1347 1344 1348 1353 CONECT 1348 1347 CONECT 1349 1346 1350 1351 1352 CONECT 1350 1349 CONECT 1351 1349 CONECT 1352 1349 CONECT 1353 1347 CONECT 1368 1374 CONECT 1374 1368 1375 CONECT 1375 1374 1376 1378 CONECT 1376 1375 1377 CONECT 1377 1376 1380 CONECT 1378 1375 1379 1384 CONECT 1379 1378 CONECT 1380 1377 1381 1382 1383 CONECT 1381 1380 CONECT 1382 1380 CONECT 1383 1380 CONECT 1384 1378 CONECT 3598 5271 CONECT 3599 5271 CONECT 3698 5271 CONECT 5240 5241 5242 5243 5247 CONECT 5241 5240 CONECT 5242 5240 CONECT 5243 5240 CONECT 5244 5245 5246 5247 5251 CONECT 5245 5244 CONECT 5246 5244 CONECT 5247 5240 5244 CONECT 5248 5249 5250 5251 5252 CONECT 5249 5248 CONECT 5250 5248 CONECT 5251 5244 5248 CONECT 5252 5248 5253 CONECT 5253 5252 5254 CONECT 5254 5253 5255 5256 CONECT 5255 5254 5260 CONECT 5256 5254 5257 5258 CONECT 5257 5256 CONECT 5258 5256 5259 5260 CONECT 5259 5258 CONECT 5260 5255 5258 5261 CONECT 5261 5260 5262 5270 CONECT 5262 5261 5263 CONECT 5263 5262 5264 CONECT 5264 5263 5265 5270 CONECT 5265 5264 5266 5267 CONECT 5266 5265 CONECT 5267 5265 5268 CONECT 5268 5267 5269 CONECT 5269 5268 5270 CONECT 5270 5261 5264 5269 CONECT 5271 3598 3599 3698 5278 CONECT 5272 5273 5274 5275 5279 CONECT 5273 5272 CONECT 5274 5272 CONECT 5275 5272 CONECT 5276 5277 5278 5279 5283 CONECT 5277 5276 CONECT 5278 5271 5276 CONECT 5279 5272 5276 CONECT 5280 5281 5282 5283 5284 CONECT 5281 5280 CONECT 5282 5280 CONECT 5283 5276 5280 CONECT 5284 5280 5285 CONECT 5285 5284 5286 CONECT 5286 5285 5287 5288 CONECT 5287 5286 5292 CONECT 5288 5286 5289 5290 CONECT 5289 5288 CONECT 5290 5288 5291 5292 CONECT 5291 5290 CONECT 5292 5287 5290 5293 CONECT 5293 5292 5294 5302 CONECT 5294 5293 5295 CONECT 5295 5294 5296 CONECT 5296 5295 5297 5302 CONECT 5297 5296 5298 5299 CONECT 5298 5297 CONECT 5299 5297 5300 CONECT 5300 5299 5301 CONECT 5301 5300 5302 CONECT 5302 5293 5296 5301 MASTER 315 0 5 28 19 0 0 6 5300 2 90 61 END