HEADER RNA BINDING PROTEIN/RNA 13-NOV-24 9EC8 TITLE ACTIVE STATE OF WILD-TYPE ESCAS13D TERNARY COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: ESCAS13D; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: CRRNA; COMPND 7 CHAIN: B; COMPND 8 ENGINEERED: YES; COMPND 9 MOL_ID: 3; COMPND 10 MOLECULE: TARGET RNA (MATCHED); COMPND 11 CHAIN: C; COMPND 12 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: [EUBACTERIUM] SIRAEUM DSM 15702; SOURCE 3 ORGANISM_TAXID: 428128; SOURCE 4 GENE: EUBSIR_02687; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 MOL_ID: 2; SOURCE 8 ORGANISM_SCIENTIFIC: [EUBACTERIUM] SIRAEUM DSM 15702; SOURCE 9 ORGANISM_TAXID: 428128; SOURCE 10 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 11 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 12 MOL_ID: 3; SOURCE 13 ORGANISM_SCIENTIFIC: [EUBACTERIUM] SIRAEUM DSM 15702; SOURCE 14 ORGANISM_TAXID: 428128; SOURCE 15 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 16 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS CAS13, CRISPR, HEPN, RNA NUCLEASE, RNA BINDING PROTEIN-RNA COMPLEX EXPDTA ELECTRON MICROSCOPY AUTHOR C.W.CHOU,I.J.FINKELSTEIN REVDAT 1 06-AUG-25 9EC8 0 JRNL AUTH K.HU,C.W.CHOU,C.O.WILKE,I.J.FINKELSTEIN JRNL TITL DISTINCT HORIZONTAL TRANSFER MECHANISMS FOR TYPE I AND TYPE JRNL TITL 2 V CRISPR-ASSOCIATED TRANSPOSONS. JRNL REF NAT COMMUN V. 15 6653 2024 JRNL REFN ESSN 2041-1723 JRNL PMID 39103341 JRNL DOI 10.1038/S41467-024-50816-W REMARK 2 REMARK 2 RESOLUTION. 3.07 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : COOT, PHENIX, ISOLDE, CRYOSPARC, REMARK 3 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 : AB INITIO MODEL 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) : 3.070 REMARK 3 NUMBER OF PARTICLES : 176095 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 9EC8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-NOV-24. REMARK 100 THE DEPOSITION ID IS D_1000290045. 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 ACTIVE STATE OF ESCAS13D REMARK 245 PROTEIN WITH CRRNA AND MATCHED REMARK 245 TARGET REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : 0.14 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 : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : 7786 REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : TFS KRIOS REMARK 245 DETECTOR TYPE : GATAN K2 SUMMIT (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 1200.00 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) : 8000.00 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: TRIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, 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 MET A 1 REMARK 465 GLY A 2 REMARK 465 LYS A 3 REMARK 465 LYS A 4 REMARK 465 ILE A 5 REMARK 465 HIS A 6 REMARK 465 ALA A 7 REMARK 465 ARG A 8 REMARK 465 ASP A 9 REMARK 465 LEU A 10 REMARK 465 ARG A 11 REMARK 465 GLU A 12 REMARK 465 GLN A 13 REMARK 465 ARG A 14 REMARK 465 LYS A 15 REMARK 465 THR A 16 REMARK 465 ASP A 17 REMARK 465 ARG A 18 REMARK 465 THR A 19 REMARK 465 GLU A 20 REMARK 465 LYS A 21 REMARK 465 PHE A 22 REMARK 465 ALA A 23 REMARK 465 ASP A 24 REMARK 465 GLN A 25 REMARK 465 ASN A 26 REMARK 465 LYS A 27 REMARK 465 LYS A 28 REMARK 465 ARG A 29 REMARK 465 GLU A 30 REMARK 465 ALA A 31 REMARK 465 GLU A 32 REMARK 465 ARG A 33 REMARK 465 ALA A 34 REMARK 465 VAL A 35 REMARK 465 PRO A 36 REMARK 465 LYS A 37 REMARK 465 LYS A 38 REMARK 465 ASP A 39 REMARK 465 ALA A 40 REMARK 465 ALA A 41 REMARK 465 VAL A 42 REMARK 465 SER A 43 REMARK 465 VAL A 44 REMARK 465 LYS A 45 REMARK 465 SER A 46 REMARK 465 VAL A 47 REMARK 465 SER A 48 REMARK 465 SER A 49 REMARK 465 VAL A 50 REMARK 465 SER A 51 REMARK 465 SER A 52 REMARK 465 LYS A 53 REMARK 465 LYS A 54 REMARK 465 ASP A 55 REMARK 465 ASN A 56 REMARK 465 VAL A 57 REMARK 465 THR A 58 REMARK 465 LYS A 145 REMARK 465 ASP A 146 REMARK 465 GLU A 147 REMARK 465 LYS A 268 REMARK 465 ASN A 269 REMARK 465 PRO A 270 REMARK 465 LYS A 271 REMARK 465 GLY A 272 REMARK 465 ASP A 616 REMARK 465 ALA A 617 REMARK 465 ASN A 618 REMARK 465 GLY A 619 REMARK 465 LYS A 687 REMARK 465 ASN A 688 REMARK 465 THR A 689 REMARK 465 ALA A 690 REMARK 465 LEU A 691 REMARK 465 SER A 714 REMARK 465 ASP A 715 REMARK 465 ALA A 716 REMARK 465 GLY A 717 REMARK 465 ASN A 718 REMARK 465 TYR A 719 REMARK 465 GLN A 720 REMARK 465 LYS A 721 REMARK 465 ALA A 722 REMARK 465 ASN A 723 REMARK 465 VAL A 724 REMARK 465 THR A 725 REMARK 465 SER A 726 REMARK 465 ARG A 727 REMARK 465 ASP A 951 REMARK 465 GLU A 952 REMARK 465 GLN A 953 REMARK 465 LYS A 954 REMARK 465 C C 1 REMARK 465 G C 2 REMARK 465 U C 3 REMARK 465 A C 4 REMARK 465 C C 28 REMARK 465 G C 29 REMARK 465 A C 30 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 U B 48 N3 - C4 - O4 ANGL. DEV. = 4.2 DEGREES REMARK 500 U B 48 C5 - C4 - O4 ANGL. DEV. = -4.0 DEGREES REMARK 500 REMARK 500 REMARK: NULL 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 ASN A 103 50.65 36.35 REMARK 500 ASN A 210 -168.78 -78.93 REMARK 500 LEU A 313 -9.84 -57.45 REMARK 500 LEU A 438 -60.26 -93.97 REMARK 500 ASN A 581 50.78 -91.98 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-47902 RELATED DB: EMDB REMARK 900 ACTIVE STATE OF WILD-TYPE ESCAS13D TERNARY COMPLEX DBREF 9EC8 A 1 954 UNP B0MS50 B0MS50_9FIRM 1 954 DBREF 9EC8 B 1 52 PDB 9EC8 9EC8 1 52 DBREF 9EC8 C 1 30 PDB 9EC8 9EC8 1 30 SEQRES 1 A 954 MET GLY LYS LYS ILE HIS ALA ARG ASP LEU ARG GLU GLN SEQRES 2 A 954 ARG LYS THR ASP ARG THR GLU LYS PHE ALA ASP GLN ASN SEQRES 3 A 954 LYS LYS ARG GLU ALA GLU ARG ALA VAL PRO LYS LYS ASP SEQRES 4 A 954 ALA ALA VAL SER VAL LYS SER VAL SER SER VAL SER SER SEQRES 5 A 954 LYS LYS ASP ASN VAL THR LYS SER MET ALA LYS ALA ALA SEQRES 6 A 954 GLY VAL LYS SER VAL PHE ALA VAL GLY ASN THR VAL TYR SEQRES 7 A 954 MET THR SER PHE GLY ARG GLY ASN ASP ALA VAL LEU GLU SEQRES 8 A 954 GLN LYS ILE VAL ASP THR SER HIS GLU PRO LEU ASN ILE SEQRES 9 A 954 ASP ASP PRO ALA TYR GLN LEU ASN VAL VAL THR MET ASN SEQRES 10 A 954 GLY TYR SER VAL THR GLY HIS ARG GLY GLU THR VAL SER SEQRES 11 A 954 ALA VAL THR ASP ASN PRO LEU ARG ARG PHE ASN GLY ARG SEQRES 12 A 954 LYS LYS ASP GLU PRO GLU GLN SER VAL PRO THR ASP MET SEQRES 13 A 954 LEU CYS LEU LYS PRO THR LEU GLU LYS LYS PHE PHE GLY SEQRES 14 A 954 LYS GLU PHE ASP ASP ASN ILE HIS ILE GLN LEU ILE TYR SEQRES 15 A 954 ASN ILE LEU ASP ILE GLU LYS ILE LEU ALA VAL TYR SER SEQRES 16 A 954 THR ASN ALA ILE TYR ALA LEU ASN ASN MET SER ALA ASP SEQRES 17 A 954 GLU ASN ILE GLU ASN SER ASP PHE PHE MET LYS ARG THR SEQRES 18 A 954 THR ASP GLU THR PHE ASP ASP PHE GLU LYS LYS LYS GLU SEQRES 19 A 954 SER THR ASN SER ARG GLU LYS ALA ASP PHE ASP ALA PHE SEQRES 20 A 954 GLU LYS PHE ILE GLY ASN TYR ARG LEU ALA TYR PHE ALA SEQRES 21 A 954 ASP ALA PHE TYR VAL ASN LYS LYS ASN PRO LYS GLY LYS SEQRES 22 A 954 ALA LYS ASN VAL LEU ARG GLU ASP LYS GLU LEU TYR SER SEQRES 23 A 954 VAL LEU THR LEU ILE GLY LYS LEU ARG HIS TRP CYS VAL SEQRES 24 A 954 HIS SER GLU GLU GLY ARG ALA GLU PHE TRP LEU TYR LYS SEQRES 25 A 954 LEU ASP GLU LEU LYS ASP ASP PHE LYS ASN VAL LEU ASP SEQRES 26 A 954 VAL VAL TYR ASN ARG PRO VAL GLU GLU ILE ASN ASN ARG SEQRES 27 A 954 PHE ILE GLU ASN ASN LYS VAL ASN ILE GLN ILE LEU GLY SEQRES 28 A 954 SER VAL TYR LYS ASN THR ASP ILE ALA GLU LEU VAL ARG SEQRES 29 A 954 SER TYR TYR GLU PHE LEU ILE THR LYS LYS TYR LYS ASN SEQRES 30 A 954 MET GLY PHE SER ILE LYS LYS LEU ARG GLU SER MET LEU SEQRES 31 A 954 GLU GLY LYS GLY TYR ALA ASP LYS GLU TYR ASP SER VAL SEQRES 32 A 954 ARG ASN LYS LEU TYR GLN MET THR ASP PHE ILE LEU TYR SEQRES 33 A 954 THR GLY TYR ILE ASN GLU ASP SER ASP ARG ALA ASP ASP SEQRES 34 A 954 LEU VAL ASN THR LEU ARG SER SER LEU LYS GLU ASP ASP SEQRES 35 A 954 LYS THR THR VAL TYR CYS LYS GLU ALA ASP TYR LEU TRP SEQRES 36 A 954 LYS LYS TYR ARG GLU SER ILE ARG GLU VAL ALA ASP ALA SEQRES 37 A 954 LEU ASP GLY ASP ASN ILE LYS LYS LEU SER LYS SER ASN SEQRES 38 A 954 ILE GLU ILE GLN GLU ASP LYS LEU ARG LYS CYS PHE ILE SEQRES 39 A 954 SER TYR ALA ASP SER VAL SER GLU PHE THR LYS LEU ILE SEQRES 40 A 954 TYR LEU LEU THR ARG PHE LEU SER GLY LYS GLU ILE ASN SEQRES 41 A 954 ASP LEU VAL THR THR LEU ILE ASN LYS PHE ASP ASN ILE SEQRES 42 A 954 ARG SER PHE LEU GLU ILE MET ASP GLU LEU GLY LEU ASP SEQRES 43 A 954 ARG THR PHE THR ALA GLU TYR SER PHE PHE GLU GLY SER SEQRES 44 A 954 THR LYS TYR LEU ALA GLU LEU VAL GLU LEU ASN SER PHE SEQRES 45 A 954 VAL LYS SER CYS SER PHE ASP ILE ASN ALA LYS ARG THR SEQRES 46 A 954 MET TYR ARG ASP ALA LEU ASP ILE LEU GLY ILE GLU SER SEQRES 47 A 954 ASP LYS THR GLU GLU ASP ILE GLU LYS MET ILE ASP ASN SEQRES 48 A 954 ILE LEU GLN ILE ASP ALA ASN GLY ASP LYS LYS LEU LYS SEQRES 49 A 954 LYS ASN ASN GLY LEU ARG ASN PHE ILE ALA SER ASN VAL SEQRES 50 A 954 ILE ASP SER ASN ARG PHE LYS TYR LEU VAL ARG TYR GLY SEQRES 51 A 954 ASN PRO LYS LYS ILE ARG GLU THR ALA LYS CYS LYS PRO SEQRES 52 A 954 ALA VAL ARG PHE VAL LEU ASN GLU ILE PRO ASP ALA GLN SEQRES 53 A 954 ILE GLU ARG TYR TYR GLU ALA CYS CYS PRO LYS ASN THR SEQRES 54 A 954 ALA LEU CYS SER ALA ASN LYS ARG ARG GLU LYS LEU ALA SEQRES 55 A 954 ASP MET ILE ALA GLU ILE LYS PHE GLU ASN PHE SER ASP SEQRES 56 A 954 ALA GLY ASN TYR GLN LYS ALA ASN VAL THR SER ARG THR SEQRES 57 A 954 SER GLU ALA GLU ILE LYS ARG LYS ASN GLN ALA ILE ILE SEQRES 58 A 954 ARG LEU TYR LEU THR VAL MET TYR ILE MET LEU LYS ASN SEQRES 59 A 954 LEU VAL ASN VAL ASN ALA ARG TYR VAL ILE ALA PHE HIS SEQRES 60 A 954 CYS VAL GLU ARG ASP THR LYS LEU TYR ALA GLU SER GLY SEQRES 61 A 954 LEU GLU VAL GLY ASN ILE GLU LYS ASN LYS THR ASN LEU SEQRES 62 A 954 THR MET ALA VAL MET GLY VAL LYS LEU GLU ASN GLY ILE SEQRES 63 A 954 ILE LYS THR GLU PHE ASP LYS SER PHE ALA GLU ASN ALA SEQRES 64 A 954 ALA ASN ARG TYR LEU ARG ASN ALA ARG TRP TYR LYS LEU SEQRES 65 A 954 ILE LEU ASP ASN LEU LYS LYS SER GLU ARG ALA VAL VAL SEQRES 66 A 954 ASN GLU PHE ARG ASN THR VAL CYS HIS LEU ASN ALA ILE SEQRES 67 A 954 ARG ASN ILE ASN ILE ASN ILE LYS GLU ILE LYS GLU VAL SEQRES 68 A 954 GLU ASN TYR PHE ALA LEU TYR HIS TYR LEU ILE GLN LYS SEQRES 69 A 954 HIS LEU GLU ASN ARG PHE ALA ASP LYS LYS VAL GLU ARG SEQRES 70 A 954 ASP THR GLY ASP PHE ILE SER LYS LEU GLU GLU HIS LYS SEQRES 71 A 954 THR TYR CYS LYS ASP PHE VAL LYS ALA TYR CYS THR PRO SEQRES 72 A 954 PHE GLY TYR ASN LEU VAL ARG TYR LYS ASN LEU THR ILE SEQRES 73 A 954 ASP GLY LEU PHE ASP LYS ASN TYR PRO GLY LYS ASP ASP SEQRES 74 A 954 SER ASP GLU GLN LYS SEQRES 1 B 52 C A C C C G U G C A A A A SEQRES 2 B 52 A U G C A G G G G U C U A SEQRES 3 B 52 A A A C U G A G C G G A U SEQRES 4 B 52 A A C C U C U C U A U G G SEQRES 1 C 30 C G U A C C A U A G A G A SEQRES 2 C 30 G G U U A U C C G C U C C SEQRES 3 C 30 A C G A HET MG A1001 1 HET MG B 101 1 HETNAM MG MAGNESIUM ION FORMUL 4 MG 2(MG 2+) HELIX 1 AA1 SER A 60 ALA A 65 1 6 HELIX 2 AA2 ASN A 135 ARG A 139 5 5 HELIX 3 AA3 LEU A 159 PHE A 168 1 10 HELIX 4 AA4 ILE A 176 MET A 205 1 30 HELIX 5 AA5 THR A 225 GLU A 230 1 6 HELIX 6 AA6 LYS A 231 GLU A 234 5 4 HELIX 7 AA7 ASN A 237 GLY A 252 1 16 HELIX 8 AA8 ASN A 253 TYR A 258 5 6 HELIX 9 AA9 PHE A 259 PHE A 263 1 5 HELIX 10 AB1 GLU A 280 HIS A 300 1 21 HELIX 11 AB2 GLY A 304 LEU A 316 5 13 HELIX 12 AB3 LYS A 317 ASN A 337 1 21 HELIX 13 AB4 ARG A 338 ASN A 343 1 6 HELIX 14 AB5 ASN A 343 TYR A 354 1 12 HELIX 15 AB6 ASP A 358 ILE A 371 1 14 HELIX 16 AB7 SER A 381 LEU A 390 1 10 HELIX 17 AB8 LYS A 393 ASP A 397 5 5 HELIX 18 AB9 VAL A 403 GLU A 422 1 20 HELIX 19 AC1 ASP A 423 SER A 436 1 14 HELIX 20 AC2 LYS A 439 ALA A 468 1 30 HELIX 21 AC3 GLY A 471 SER A 480 1 10 HELIX 22 AC4 GLU A 486 LYS A 491 1 6 HELIX 23 AC5 SER A 501 ARG A 512 1 12 HELIX 24 AC6 SER A 515 LEU A 543 1 29 HELIX 25 AC7 THR A 550 GLU A 557 5 8 HELIX 26 AC8 GLY A 558 VAL A 573 1 16 HELIX 27 AC9 ALA A 582 GLY A 595 1 14 HELIX 28 AD1 THR A 601 GLN A 614 1 14 HELIX 29 AD2 GLY A 628 VAL A 637 1 10 HELIX 30 AD3 SER A 640 ARG A 648 1 9 HELIX 31 AD4 LYS A 654 ALA A 659 1 6 HELIX 32 AD5 CYS A 661 LEU A 669 1 9 HELIX 33 AD6 PRO A 673 ALA A 683 1 11 HELIX 34 AD7 SER A 693 GLU A 707 1 15 HELIX 35 AD8 SER A 729 ILE A 740 1 12 HELIX 36 AD9 ILE A 740 GLY A 780 1 41 HELIX 37 AE1 THR A 791 GLY A 799 1 9 HELIX 38 AE2 ASP A 812 ASN A 818 1 7 HELIX 39 AE3 ARG A 822 ARG A 825 5 4 HELIX 40 AE4 ASN A 826 LYS A 838 1 13 HELIX 41 AE5 GLU A 841 LEU A 855 1 15 HELIX 42 AE6 LEU A 855 ASN A 860 1 6 HELIX 43 AE7 ASN A 860 ILE A 865 1 6 HELIX 44 AE8 ASN A 873 PHE A 890 1 18 HELIX 45 AE9 GLU A 896 HIS A 909 1 14 HELIX 46 AF1 CYS A 913 CYS A 921 1 9 HELIX 47 AF2 THR A 922 GLY A 925 5 4 HELIX 48 AF3 ASN A 927 LEU A 934 1 8 SHEET 1 AA1 4 VAL A 67 VAL A 73 0 SHEET 2 AA1 4 THR A 76 PHE A 82 -1 O THR A 80 N SER A 69 SHEET 3 AA1 4 ALA A 88 ILE A 94 -1 O GLU A 91 N MET A 79 SHEET 4 AA1 4 HIS A 99 PRO A 101 -1 O GLU A 100 N LYS A 93 SHEET 1 AA2 3 TYR A 109 THR A 115 0 SHEET 2 AA2 3 GLY A 118 GLY A 123 -1 O GLY A 118 N THR A 115 SHEET 3 AA2 3 VAL A 129 THR A 133 -1 O THR A 133 N TYR A 119 SHEET 1 AA3 2 TYR A 264 VAL A 265 0 SHEET 2 AA3 2 VAL A 277 LEU A 278 -1 O VAL A 277 N VAL A 265 LINK OP1 U B 23 MG MG B 101 1555 1555 2.26 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 7064 SER A 950 TER 8176 G B 52 TER 8664 A C 27 HETATM 8665 MG MG A1001 134.150 144.687 114.267 1.00108.67 MG HETATM 8666 MG MG B 101 128.318 120.986 108.831 1.00 65.05 MG CONECT 7541 8666 CONECT 8666 7541 MASTER 249 0 2 48 9 0 0 6 8663 3 2 81 END