HEADER SPLICING/RNA 21-DEC-22 8FLI TITLE CRYO-EM STRUCTURE OF A GROUP II INTRON IMMEDIATELY BEFORE BRANCHING CAVEAT 8FLI COMPND MOL_ID: 1; COMPND 2 MOLECULE: GROUP II INTRON; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: MATURASE REVERSE TRANSCRIPTASE; COMPND 7 CHAIN: B; COMPND 8 ENGINEERED: YES; COMPND 9 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: THERMOSYNECHOCOCCUS VESTITUS; SOURCE 3 ORGANISM_TAXID: 146786; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 6 MOL_ID: 2; SOURCE 7 ORGANISM_SCIENTIFIC: THERMOSYNECHOCOCCUS VESTITUS; SOURCE 8 ORGANISM_TAXID: 146786; SOURCE 9 GENE: TLL0114; SOURCE 10 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 11 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS GROUP II INTRON, SPLICING, BRANCHING, MATURASE, SPLICING-RNA COMPLEX EXPDTA ELECTRON MICROSCOPY AUTHOR D.B.HAACK,B.G.RUDOLFS,C.ZHANG,D.LYUMKIS,N.TOOR REVDAT 3 07-FEB-24 8FLI 1 JRNL REVDAT 2 20-DEC-23 8FLI 1 JRNL REVDAT 1 13-DEC-23 8FLI 0 JRNL AUTH D.B.HAACK,B.RUDOLFS,C.ZHANG,D.LYUMKIS,N.TOOR JRNL TITL STRUCTURAL BASIS OF BRANCHING DURING RNA SPLICING. JRNL REF NAT.STRUCT.MOL.BIOL. V. 31 179 2024 JRNL REFN ESSN 1545-9985 JRNL PMID 38057551 JRNL DOI 10.1038/S41594-023-01150-0 REMARK 2 REMARK 2 RESOLUTION. 3.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : NULL 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) : 3.800 REMARK 3 NUMBER OF PARTICLES : 38881 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 8FLI COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-JAN-23. REMARK 100 THE DEPOSITION ID IS D_1000270925. 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 : GROUP IIB INTRON IN COMPLEX REMARK 245 WITH ITS MATURASE PROTEIN 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 : 7.50 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 : FEI TALOS ARCTICA REMARK 245 DETECTOR TYPE : GATAN K2 SUMMIT (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 1000.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 2500.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL REMARK 245 IMAGING MODE : OTHER REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 3160.00 REMARK 245 ILLUMINATION MODE : OTHER REMARK 245 NOMINAL MAGNIFICATION : NULL REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 200 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 C A -17 REMARK 465 C A -16 REMARK 465 C A -15 REMARK 465 A A -14 REMARK 465 A A 445 REMARK 465 A A 446 REMARK 465 C A 447 REMARK 465 C A 448 REMARK 465 U A 449 REMARK 465 U A 450 REMARK 465 C A 451 REMARK 465 G A 452 REMARK 465 G A 453 REMARK 465 G A 454 REMARK 465 A A 455 REMARK 465 A A 456 REMARK 465 A A 673 REMARK 465 A A 674 REMARK 465 A A 675 REMARK 465 C A 676 REMARK 465 A A 677 REMARK 465 A A 678 REMARK 465 G A 679 REMARK 465 C A 680 REMARK 465 U A 681 REMARK 465 G A 682 REMARK 465 G A 683 REMARK 465 C A 684 REMARK 465 A A 685 REMARK 465 C A 686 REMARK 465 A A 687 REMARK 465 G A 688 REMARK 465 C A 689 REMARK 465 A A 690 REMARK 465 U A 691 REMARK 465 A A 692 REMARK 465 G A 693 REMARK 465 A A 694 REMARK 465 C A 695 REMARK 465 U A 696 REMARK 465 G A 697 REMARK 465 G A 698 REMARK 465 G A 699 REMARK 465 C A 700 REMARK 465 C A 701 REMARK 465 A A 702 REMARK 465 A A 703 REMARK 465 A A 704 REMARK 465 G A 705 REMARK 465 C A 706 REMARK 465 C A 707 REMARK 465 A A 708 REMARK 465 A A 709 REMARK 465 G A 864 REMARK 465 G A 865 REMARK 465 C A 866 REMARK 465 G A 867 REMARK 465 A A 868 REMARK 465 U A 869 REMARK 465 G A 870 REMARK 465 A A 871 REMARK 465 G A 872 REMARK 465 G A 873 REMARK 465 C A 874 REMARK 465 A A 875 REMARK 465 MET B 1 REMARK 465 GLU B 2 REMARK 465 THR B 3 REMARK 465 ARG B 4 REMARK 465 GLN B 5 REMARK 465 MET B 6 REMARK 465 ALA B 7 REMARK 465 VAL B 8 REMARK 465 GLU B 9 REMARK 465 GLN B 10 REMARK 465 THR B 11 REMARK 465 THR B 12 REMARK 465 GLY B 13 REMARK 465 ALA B 14 REMARK 465 VAL B 15 REMARK 465 THR B 16 REMARK 465 ASN B 17 REMARK 465 GLN B 18 REMARK 465 THR B 19 REMARK 465 GLU B 20 REMARK 465 THR B 21 REMARK 465 LYS B 480 REMARK 465 LEU B 481 REMARK 465 LYS B 482 REMARK 465 GLU B 483 REMARK 465 ALA B 484 REMARK 465 PRO B 485 REMARK 465 ALA B 486 REMARK 465 GLN B 487 REMARK 465 TYR B 488 REMARK 465 ARG B 489 REMARK 465 ARG B 490 REMARK 465 ILE B 491 REMARK 465 ARG B 492 REMARK 465 ARG B 493 REMARK 465 GLU B 494 REMARK 465 LEU B 495 REMARK 465 TRP B 496 REMARK 465 LYS B 497 REMARK 465 LYS B 498 REMARK 465 GLN B 499 REMARK 465 GLY B 500 REMARK 465 GLY B 501 REMARK 465 ILE B 502 REMARK 465 CYS B 503 REMARK 465 PRO B 504 REMARK 465 VAL B 505 REMARK 465 CYS B 506 REMARK 465 GLY B 507 REMARK 465 GLY B 508 REMARK 465 GLU B 509 REMARK 465 ILE B 510 REMARK 465 GLU B 511 REMARK 465 GLN B 512 REMARK 465 ASP B 513 REMARK 465 MET B 514 REMARK 465 LEU B 515 REMARK 465 THR B 516 REMARK 465 GLU B 517 REMARK 465 ILE B 518 REMARK 465 HIS B 519 REMARK 465 HIS B 520 REMARK 465 ILE B 521 REMARK 465 LEU B 522 REMARK 465 PRO B 523 REMARK 465 LYS B 524 REMARK 465 HIS B 525 REMARK 465 LYS B 526 REMARK 465 GLY B 527 REMARK 465 GLY B 528 REMARK 465 SER B 529 REMARK 465 ASP B 530 REMARK 465 ASP B 531 REMARK 465 LEU B 532 REMARK 465 ASP B 533 REMARK 465 ASN B 534 REMARK 465 LEU B 535 REMARK 465 VAL B 536 REMARK 465 LEU B 537 REMARK 465 ILE B 538 REMARK 465 HIS B 539 REMARK 465 ALA B 540 REMARK 465 ASN B 541 REMARK 465 CYS B 542 REMARK 465 HIS B 543 REMARK 465 LYS B 544 REMARK 465 GLN B 545 REMARK 465 VAL B 546 REMARK 465 HIS B 547 REMARK 465 SER B 548 REMARK 465 ARG B 549 REMARK 465 ASP B 550 REMARK 465 GLY B 551 REMARK 465 GLN B 552 REMARK 465 HIS B 553 REMARK 465 SER B 554 REMARK 465 ARG B 555 REMARK 465 PHE B 556 REMARK 465 LEU B 557 REMARK 465 LEU B 558 REMARK 465 LYS B 559 REMARK 465 GLU B 560 REMARK 465 GLY B 561 REMARK 465 LEU B 562 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OE1 GLU B 470 CD1 TRP B 471 1.51 REMARK 500 O LYS B 348 OD1 ASP B 351 1.92 REMARK 500 O2' G A 147 OP2 A A 149 2.04 REMARK 500 O2 C A 748 N2 G A 755 2.09 REMARK 500 OE1 GLN B 266 OG1 THR B 286 2.14 REMARK 500 O PRO B 132 NH1 ARG B 137 2.17 REMARK 500 O2' A A 542 N7 A A 544 2.18 REMARK 500 REMARK 500 REMARK: NULL 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 C A 305 N3 - C2 - O2 ANGL. DEV. = -5.6 DEGREES REMARK 500 U A 859 C4' - C3' - O3' ANGL. DEV. = 13.6 DEGREES REMARK 500 U A 859 C2' - C3' - O3' ANGL. DEV. = -18.9 DEGREES REMARK 500 LEU B 356 CA - CB - CG ANGL. DEV. = 14.8 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 TRP B 51 -4.18 67.88 REMARK 500 LYS B 55 45.31 -84.12 REMARK 500 TYR B 66 -5.09 68.26 REMARK 500 SER B 79 -157.86 52.55 REMARK 500 ASP B 87 -23.37 -141.60 REMARK 500 SER B 92 9.86 54.98 REMARK 500 LYS B 97 47.66 -90.36 REMARK 500 SER B 103 52.83 -94.23 REMARK 500 GLN B 112 75.17 -118.33 REMARK 500 PRO B 113 -135.53 8.41 REMARK 500 ARG B 157 -67.34 61.12 REMARK 500 ASN B 158 52.70 -93.58 REMARK 500 GLN B 174 48.66 -80.93 REMARK 500 CYS B 184 -126.61 35.86 REMARK 500 ALA B 191 153.75 65.50 REMARK 500 PRO B 210 58.81 -93.17 REMARK 500 LYS B 221 -45.07 139.87 REMARK 500 SER B 222 -158.88 -79.72 REMARK 500 PHE B 224 -4.34 75.09 REMARK 500 TRP B 226 -7.66 74.53 REMARK 500 GLN B 228 -168.77 -166.09 REMARK 500 GLN B 229 -169.09 -73.14 REMARK 500 ASP B 253 -166.93 -78.45 REMARK 500 MET B 255 -5.92 67.43 REMARK 500 ARG B 264 -60.80 -91.02 REMARK 500 GLN B 266 47.89 -84.84 REMARK 500 ALA B 274 -94.85 58.71 REMARK 500 LEU B 287 49.72 -83.07 REMARK 500 PHE B 297 45.90 -82.74 REMARK 500 GLU B 307 49.30 -93.26 REMARK 500 GLU B 308 -37.76 -134.49 REMARK 500 LEU B 322 -145.96 57.24 REMARK 500 LYS B 340 44.94 -83.10 REMARK 500 ASN B 341 -30.10 -136.13 REMARK 500 ALA B 359 -165.78 53.64 REMARK 500 GLN B 361 -11.85 72.35 REMARK 500 LYS B 373 -31.48 -142.71 REMARK 500 ARG B 390 -2.32 65.00 REMARK 500 LYS B 416 -70.42 -62.73 REMARK 500 ASN B 425 -157.73 -149.50 REMARK 500 LYS B 434 -169.06 -79.98 REMARK 500 PHE B 475 -89.62 59.22 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 903 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 G A 0 O3' REMARK 620 2 U A 1 OP2 83.2 REMARK 620 3 U A 1 O5' 58.1 56.9 REMARK 620 4 C A 813 OP1 119.3 157.4 135.2 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 901 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 A A 6 OP1 REMARK 620 2 C A 7 OP2 106.2 REMARK 620 3 A A 401 OP1 100.5 150.5 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 902 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 A A 792 OP1 REMARK 620 2 A A 792 OP2 68.4 REMARK 620 3 A A 792 O5' 63.2 57.2 REMARK 620 4 A A 815 OP2 142.1 130.7 153.1 REMARK 620 N 1 2 3 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-29279 RELATED DB: EMDB REMARK 900 CRYO-EM STRUCTURE OF A GROUP II INTRON IMMEDIATELY BEFORE BRANCHING DBREF 8FLI A -17 875 PDB 8FLI 8FLI -17 875 DBREF 8FLI B 1 562 UNP Q8DMK2 Q8DMK2_THEVB 1 562 SEQADV 8FLI ASP B 275 UNP Q8DMK2 GLY 275 ENGINEERED MUTATION SEQRES 1 A 893 C C C A G G G U U G G C C SEQRES 2 A 893 G A G C G U U G C G A C G SEQRES 3 A 893 C G A A A G C U A G C C A SEQRES 4 A 893 G A U G A U U G U C C C A SEQRES 5 A 893 C U A G C C C A A C A A G SEQRES 6 A 893 C U A G A A C G G G A C C SEQRES 7 A 893 G G U U G U U C C C C C A SEQRES 8 A 893 A C C G U A G C C U A G G SEQRES 9 A 893 G A G G C A U G C G U G A SEQRES 10 A 893 C U G G U A A C G G U C A SEQRES 11 A 893 G G U G U G A A G C C C U SEQRES 12 A 893 C C C G A C A A U G U A G SEQRES 13 A 893 C C C G A A C C G C A A G SEQRES 14 A 893 G U U G A A G C U G A A U SEQRES 15 A 893 C C G U G A G G A G G A A SEQRES 16 A 893 G C A A C U U C A C C A G SEQRES 17 A 893 U G U C A G G U G A U A G SEQRES 18 A 893 G G A A C U A G G C U U G SEQRES 19 A 893 A G G G U A U G G U G A G SEQRES 20 A 893 C A C A U G C G A A G U G SEQRES 21 A 893 A U G U C A G A A G C C U SEQRES 22 A 893 C G U C A C A G A C C A A SEQRES 23 A 893 C A G G C C A A A G A C A SEQRES 24 A 893 C U G A U A G G C C U G A SEQRES 25 A 893 G C C A A A A C G G C A A SEQRES 26 A 893 A U G G A U A G G C U A C SEQRES 27 A 893 A U C G C U C G C U C G U SEQRES 28 A 893 C G G U G U A C G G G G A SEQRES 29 A 893 C G U C A A U C C A U C G SEQRES 30 A 893 G G G C A C A G U C A C C SEQRES 31 A 893 A C C U A A C C C C U C G SEQRES 32 A 893 U G U C A U C U G G U U G SEQRES 33 A 893 G A A C G C G G U A A G C SEQRES 34 A 893 C C G U A U C C U C G C C SEQRES 35 A 893 U U G A A C A C U C A A G SEQRES 36 A 893 G C A G G C A A A C C U U SEQRES 37 A 893 C G G G A A U G C U G A U SEQRES 38 A 893 G G G G G U G C G G G U A SEQRES 39 A 893 U G G G A U G C A G G A G SEQRES 40 A 893 A A A G C G A A U G C C G SEQRES 41 A 893 G U C U G U A A U G G A C SEQRES 42 A 893 C G G A U A G G G G U U G SEQRES 43 A 893 A G G A G A C A A U C C A SEQRES 44 A 893 A C A U C A C C C C G C C SEQRES 45 A 893 C G A A A G G G A G C A G SEQRES 46 A 893 A C U U C C U G C U G G U SEQRES 47 A 893 C U C U C U U U G C G A G SEQRES 48 A 893 A U A G C C U G U A G A A SEQRES 49 A 893 C C U C U U G A A U G G A SEQRES 50 A 893 G A C A A G G C A A A U G SEQRES 51 A 893 G C A G U G G A A C A A A SEQRES 52 A 893 C C A C U G G U G C G G U SEQRES 53 A 893 C A C C A A C C A A A C G SEQRES 54 A 893 G A A A C A A G C U G G C SEQRES 55 A 893 A C A G C A U A G A C U G SEQRES 56 A 893 G G C C A A A G C C A A C SEQRES 57 A 893 C G U G A G G U A A A G A SEQRES 58 A 893 G G C U G C A A G U G C G SEQRES 59 A 893 U A U C G C A A A G G C G SEQRES 60 A 893 U U C G C G C C G G U U C SEQRES 61 A 893 C U C U U G A A A G A G G SEQRES 62 A 893 G G C U U U G A G A G G C SEQRES 63 A 893 C U G A G C C G G A U G U SEQRES 64 A 893 G G G G A A A C U C A C A SEQRES 65 A 893 A G U C C G G U U C U U A SEQRES 66 A 893 G G G G G C G G G G A U G SEQRES 67 A 893 G C A U U C G U G C C U C SEQRES 68 A 893 C C U G C U A C C C G G C SEQRES 69 A 893 G A U G A G G C A SEQRES 1 B 562 MET GLU THR ARG GLN MET ALA VAL GLU GLN THR THR GLY SEQRES 2 B 562 ALA VAL THR ASN GLN THR GLU THR SER TRP HIS SER ILE SEQRES 3 B 562 ASP TRP ALA LYS ALA ASN ARG GLU VAL LYS ARG LEU GLN SEQRES 4 B 562 VAL ARG ILE ALA LYS ALA VAL LYS GLU GLY ARG TRP GLY SEQRES 5 B 562 LYS VAL LYS ALA LEU GLN TRP LEU LEU THR HIS SER PHE SEQRES 6 B 562 TYR GLY LYS ALA LEU ALA VAL LYS ARG VAL THR ASP ASN SEQRES 7 B 562 SER GLY SER LYS THR PRO GLY VAL ASP GLY ILE THR TRP SEQRES 8 B 562 SER THR GLN GLU GLN LYS ALA GLN ALA ILE LYS SER LEU SEQRES 9 B 562 ARG ARG ARG GLY TYR LYS PRO GLN PRO LEU ARG ARG VAL SEQRES 10 B 562 TYR ILE PRO LYS ALA SER GLY LYS GLN ARG PRO LEU GLY SEQRES 11 B 562 ILE PRO THR THR LYS ASP ARG ALA MET GLN ALA LEU TYR SEQRES 12 B 562 ALA LEU ALA LEU GLU PRO VAL ALA GLU THR THR ALA ASP SEQRES 13 B 562 ARG ASN SER TYR GLY PHE ARG GLN GLY ARG CYS THR ALA SEQRES 14 B 562 ASP ALA ALA GLY GLN CYS PHE THR VAL LEU GLY ARG SER SEQRES 15 B 562 ASP CYS ALA LYS TYR ILE LEU ASP ALA ASP ILE THR GLY SEQRES 16 B 562 CYS PHE ASP ASN ILE SER HIS GLU TRP LEU LEU ASP ASN SEQRES 17 B 562 ILE PRO LEU ASP LYS GLU VAL LEU ARG LYS TRP LEU LYS SEQRES 18 B 562 SER GLY PHE VAL TRP LYS GLN GLN LEU PHE PRO THR HIS SEQRES 19 B 562 ALA GLY THR PRO GLN GLY GLY VAL ILE SER PRO MET LEU SEQRES 20 B 562 ALA ASN MET THR LEU ASP GLY MET GLU GLU LEU LEU LYS SEQRES 21 B 562 LYS HIS LEU ARG LYS GLN LYS VAL ASN LEU ILE ARG TYR SEQRES 22 B 562 ALA ASP ASP PHE VAL VAL THR GLY GLU SER LYS GLU THR SEQRES 23 B 562 LEU GLU LYS VAL THR THR VAL ILE GLN GLU PHE LEU LYS SEQRES 24 B 562 GLU ARG GLY LEU THR LEU SER GLU GLU LYS THR LYS VAL SEQRES 25 B 562 VAL HIS ILE GLU GLU GLY PHE ASP PHE LEU GLY TRP ASN SEQRES 26 B 562 ILE ARG LYS TYR GLY GLU LYS LEU LEU ILE LYS PRO ALA SEQRES 27 B 562 LYS LYS ASN ILE LYS ALA PHE HIS LYS LYS ILE ARG ASP SEQRES 28 B 562 ALA LEU LYS GLU LEU ARG THR ALA THR GLN GLU ALA VAL SEQRES 29 B 562 ILE ASP THR LEU ASN PRO ILE ILE LYS GLY TRP ALA ASN SEQRES 30 B 562 TYR HIS ARG ASN GLN VAL SER LYS ARG ILE PHE ASN ARG SEQRES 31 B 562 ALA ASP ASP ASN ILE TRP HIS LYS LEU TRP ARG TRP ALA SEQRES 32 B 562 LYS ARG ARG HIS PRO ASN LYS PRO ALA ARG TRP THR LYS SEQRES 33 B 562 ASN LYS TYR PHE ILE LYS ILE GLY ASN ARG HIS TRP VAL SEQRES 34 B 562 PHE GLY THR TRP LYS LYS ASP LYS GLU GLY ARG LEU ARG SEQRES 35 B 562 SER ARG TYR LEU ILE LYS ALA GLY ASP THR ARG ILE GLN SEQRES 36 B 562 ARG HIS VAL LYS ILE LYS ALA ASP ALA ASN PRO PHE LEU SEQRES 37 B 562 PRO GLU TRP ALA GLU TYR PHE GLU GLU ARG LYS LYS LEU SEQRES 38 B 562 LYS GLU ALA PRO ALA GLN TYR ARG ARG ILE ARG ARG GLU SEQRES 39 B 562 LEU TRP LYS LYS GLN GLY GLY ILE CYS PRO VAL CYS GLY SEQRES 40 B 562 GLY GLU ILE GLU GLN ASP MET LEU THR GLU ILE HIS HIS SEQRES 41 B 562 ILE LEU PRO LYS HIS LYS GLY GLY SER ASP ASP LEU ASP SEQRES 42 B 562 ASN LEU VAL LEU ILE HIS ALA ASN CYS HIS LYS GLN VAL SEQRES 43 B 562 HIS SER ARG ASP GLY GLN HIS SER ARG PHE LEU LEU LYS SEQRES 44 B 562 GLU GLY LEU HET MG A 901 1 HET MG A 902 1 HET MG A 903 1 HETNAM MG MAGNESIUM ION FORMUL 3 MG 3(MG 2+) HELIX 1 AA1 SER B 22 ILE B 26 5 5 HELIX 2 AA2 ASP B 27 GLU B 48 1 22 HELIX 3 AA3 LYS B 53 THR B 62 1 10 HELIX 4 AA4 GLY B 67 ASP B 77 1 11 HELIX 5 AA5 ALA B 98 SER B 103 1 6 HELIX 6 AA6 LYS B 135 TYR B 143 1 9 HELIX 7 AA7 LEU B 147 THR B 154 1 8 HELIX 8 AA8 THR B 168 GLN B 174 1 7 HELIX 9 AA9 CYS B 196 ILE B 200 5 5 HELIX 10 AB1 GLU B 203 ASP B 207 5 5 HELIX 11 AB2 GLU B 214 LEU B 220 1 7 HELIX 12 AB3 ILE B 243 LEU B 252 1 10 HELIX 13 AB4 GLU B 256 LEU B 263 1 8 HELIX 14 AB5 LYS B 289 PHE B 297 1 9 HELIX 15 AB6 ALA B 338 ILE B 349 1 12 HELIX 16 AB7 ALA B 363 TYR B 378 1 16 HELIX 17 AB8 SER B 384 ASN B 389 1 6 HELIX 18 AB9 ASP B 392 LYS B 404 1 13 HELIX 19 AC1 PRO B 411 TYR B 419 1 9 SHEET 1 AA1 2 ARG B 115 ILE B 119 0 SHEET 2 AA1 2 ARG B 127 ILE B 131 -1 O LEU B 129 N VAL B 117 SHEET 1 AA2 4 ASN B 269 ARG B 272 0 SHEET 2 AA2 4 PHE B 277 GLY B 281 -1 O VAL B 278 N ILE B 271 SHEET 3 AA2 4 TYR B 187 LEU B 189 -1 N LEU B 189 O VAL B 279 SHEET 4 AA2 4 VAL B 312 HIS B 314 -1 O VAL B 313 N ILE B 188 SHEET 1 AA3 3 PHE B 319 PHE B 321 0 SHEET 2 AA3 3 TRP B 324 LYS B 328 -1 O ILE B 326 N PHE B 319 SHEET 3 AA3 3 LEU B 333 LYS B 336 -1 O LYS B 336 N ASN B 325 SHEET 1 AA4 3 PHE B 420 ILE B 421 0 SHEET 2 AA4 3 VAL B 429 THR B 432 -1 O VAL B 429 N ILE B 421 SHEET 3 AA4 3 ARG B 444 TYR B 445 -1 O ARG B 444 N THR B 432 LINK O3' G A 0 MG MG A 903 1555 1555 1.86 LINK OP2 U A 1 MG MG A 903 1555 1555 1.90 LINK O5' U A 1 MG MG A 903 1555 1555 2.95 LINK OP1 A A 6 MG MG A 901 1555 1555 1.90 LINK OP2 C A 7 MG MG A 901 1555 1555 1.98 LINK OP1 A A 401 MG MG A 901 1555 1555 2.20 LINK OP1 A A 792 MG MG A 902 1555 1555 1.99 LINK OP2 A A 792 MG MG A 902 1555 1555 2.53 LINK O5' A A 792 MG MG A 902 1555 1555 2.63 LINK OP1 C A 813 MG MG A 903 1555 1555 2.64 LINK OP2 A A 815 MG MG A 902 1555 1555 2.90 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