HEADER IMMUNE SYSTEM 21-AUG-25 9Q60 TITLE CRYOEM STRUCTURE OF HUMAN MDA5 DISEASE-LINKED MUTANT T331I WITH DSRNA TITLE 2 (ONE PROTEIN SUBUNIT ON DSRNA) COMPND MOL_ID: 1; COMPND 2 MOLECULE: INTERFERON-INDUCED HELICASE C DOMAIN-CONTAINING PROTEIN 1; COMPND 3 CHAIN: C; COMPND 4 SYNONYM: CLINICALLY AMYOPATHIC DERMATOMYOSITIS AUTOANTIGEN 140 KDA, COMPND 5 CADM-140 AUTOANTIGEN,HELICASE WITH 2 CARD DOMAINS,HELICARD, COMPND 6 INTERFERON-INDUCED WITH HELICASE C DOMAIN PROTEIN 1,MELANOMA COMPND 7 DIFFERENTIATION-ASSOCIATED PROTEIN 5,MDA-5,MURABUTIDE DOWN-REGULATED COMPND 8 PROTEIN,RIG-I-LIKE RECEPTOR 2,RLR-2,RNA HELICASE-DEAD BOX PROTEIN COMPND 9 116; COMPND 10 EC: 3.6.4.13; COMPND 11 ENGINEERED: YES; COMPND 12 MUTATION: YES; COMPND 13 MOL_ID: 2; COMPND 14 MOLECULE: RNA-13MER; COMPND 15 CHAIN: B; COMPND 16 ENGINEERED: YES; COMPND 17 MOL_ID: 3; COMPND 18 MOLECULE: RNA-13MER; COMPND 19 CHAIN: A; COMPND 20 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: IFIH1, MDA5, RH116; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI 'BL21-GOLD(DE3)PLYSS AG'; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 866768; SOURCE 8 MOL_ID: 2; SOURCE 9 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 10 ORGANISM_TAXID: 32630; SOURCE 11 EXPRESSION_SYSTEM: IN VITRO TRANSCRIPTION VECTOR PT7-FLUC(DELTAI); SOURCE 12 EXPRESSION_SYSTEM_TAXID: 905932; SOURCE 13 MOL_ID: 3; SOURCE 14 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 15 ORGANISM_TAXID: 32630; SOURCE 16 EXPRESSION_SYSTEM: IN VITRO TRANSCRIPTION VECTOR PT7-FLUC(DELTAI); SOURCE 17 EXPRESSION_SYSTEM_TAXID: 905932 KEYWDS RLR, MDA5, MDA5 DISEASE-LINKED MUTANT, T331I, IMMUNE SYSTEM EXPDTA ELECTRON MICROSCOPY AUTHOR L.XU,K.CHUNG,A.PYLE REVDAT 1 16-SEP-26 9Q60 0 JRNL AUTH L.XU,K.CHUNG,R.GUO,A.PAN,A.M.PYLE JRNL TITL UNRAVELING THE MOLECULAR BASIS FOR MDA5 T331I DISEASE-LINKED JRNL TITL 2 MUTATION JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 3.12 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : CRYOSPARC, CRYOSPARC, 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) : 3.120 REMARK 3 NUMBER OF PARTICLES : 75762 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 9Q60 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-AUG-25. REMARK 100 THE DEPOSITION ID IS D_1000299218. 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 OF HUMAN MDA5 DISEASE REMARK 245 -LINKED MUTANT T331I WITH DSRNA REMARK 245 (ONE SUBUNIT ON DSRNA) 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 : TFS KRIOS REMARK 245 DETECTOR TYPE : GATAN K3 (6K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 500.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 2000.00 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) : 5058.90 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, B, A 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 ALA C 298 REMARK 465 ARG C 299 REMARK 465 ALA C 300 REMARK 465 SER C 301 REMARK 465 PRO C 302 REMARK 465 GLU C 303 REMARK 465 PRO C 304 REMARK 465 GLU C 305 REMARK 465 ASP C 643 REMARK 465 ASP C 644 REMARK 465 SER C 645 REMARK 465 ASP C 646 REMARK 465 GLU C 647 REMARK 465 GLY C 648 REMARK 465 GLY C 649 REMARK 465 ASP C 650 REMARK 465 ASP C 651 REMARK 465 GLU C 652 REMARK 465 TYR C 653 REMARK 465 CYS C 654 REMARK 465 ASP C 655 REMARK 465 GLY C 656 REMARK 465 ASP C 657 REMARK 465 GLU C 658 REMARK 465 ASP C 659 REMARK 465 GLU C 660 REMARK 465 ASP C 661 REMARK 465 ASP C 662 REMARK 465 LEU C 663 REMARK 465 LYS C 664 REMARK 465 LYS C 665 REMARK 465 PRO C 666 REMARK 465 LEU C 667 REMARK 465 ALA C 946 REMARK 465 LEU C 947 REMARK 465 GLN C 948 REMARK 465 LYS C 949 REMARK 465 LYS C 950 REMARK 465 CYS C 951 REMARK 465 ALA C 952 REMARK 465 ASP C 953 REMARK 465 TYR C 954 REMARK 465 GLN C 955 REMARK 465 ILE C 956 REMARK 465 TYR C 1015 REMARK 465 SER C 1016 REMARK 465 GLU C 1017 REMARK 465 CYS C 1018 REMARK 465 CYS C 1019 REMARK 465 LEU C 1020 REMARK 465 PHE C 1021 REMARK 465 SER C 1022 REMARK 465 ASP C 1023 REMARK 465 GLU C 1024 REMARK 465 ASP C 1025 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 C 306 N 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 CYS C 907 CA - CB - SG ANGL. DEV. = 15.3 DEGREES REMARK 500 CYS C 962 CA - CB - SG ANGL. DEV. = 8.2 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 LYS C 323 -179.48 63.46 REMARK 500 SER C 391 -168.51 -160.13 REMARK 500 ASP C 429 -136.13 45.47 REMARK 500 LYS C 450 -130.75 59.86 REMARK 500 LEU C 481 155.28 67.64 REMARK 500 LYS C 522 -51.97 -120.08 REMARK 500 ASP C 548 66.64 29.19 REMARK 500 TYR C 696 30.72 -95.87 REMARK 500 THR C 713 -162.21 -79.00 REMARK 500 THR C 715 -165.38 -78.16 REMARK 500 GLU C 716 -10.69 74.37 REMARK 500 ALA C 792 112.68 -161.99 REMARK 500 THR C 811 -119.33 63.35 REMARK 500 LYS C 894 -169.10 -124.19 REMARK 500 ASN C 899 69.42 34.48 REMARK 500 ALA C 914 -60.99 -91.61 REMARK 500 ASN C 944 -122.11 50.45 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 ILE C 783 ASN C 784 -141.86 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 C1102 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ATP C1103 O1B REMARK 620 2 ATP C1103 O1A 69.1 REMARK 620 N 1 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-72244 RELATED DB: EMDB REMARK 900 CRYOEM STRUCTURE OF HUMAN MDA5 DISEASE-LINKED MUTANT T331I WITH REMARK 900 DSRNA (ONE PROTEIN SUBUNIT ON DSRNA) DBREF 9Q60 C 298 1025 UNP Q9BYX4 IFIH1_HUMAN 298 1025 DBREF 9Q60 B 1 13 PDB 9Q60 9Q60 1 13 DBREF 9Q60 A 1 13 PDB 9Q60 9Q60 1 13 SEQADV 9Q60 ILE C 331 UNP Q9BYX4 THR 331 ENGINEERED MUTATION SEQRES 1 C 728 ALA ARG ALA SER PRO GLU PRO GLU LEU GLN LEU ARG PRO SEQRES 2 C 728 TYR GLN MET GLU VAL ALA GLN PRO ALA LEU GLU GLY LYS SEQRES 3 C 728 ASN ILE ILE ILE CYS LEU PRO ILE GLY SER GLY LYS THR SEQRES 4 C 728 ARG VAL ALA VAL TYR ILE ALA LYS ASP HIS LEU ASP LYS SEQRES 5 C 728 LYS LYS LYS ALA SER GLU PRO GLY LYS VAL ILE VAL LEU SEQRES 6 C 728 VAL ASN LYS VAL LEU LEU VAL GLU GLN LEU PHE ARG LYS SEQRES 7 C 728 GLU PHE GLN PRO PHE LEU LYS LYS TRP TYR ARG VAL ILE SEQRES 8 C 728 GLY LEU SER GLY ASP THR GLN LEU LYS ILE SER PHE PRO SEQRES 9 C 728 GLU VAL VAL LYS SER CYS ASP ILE ILE ILE SER THR ALA SEQRES 10 C 728 GLN ILE LEU GLU ASN SER LEU LEU ASN LEU GLU ASN GLY SEQRES 11 C 728 GLU ASP ALA GLY VAL GLN LEU SER ASP PHE SER LEU ILE SEQRES 12 C 728 ILE ILE ASP GLU CYS HIS HIS THR ASN LYS GLU ALA VAL SEQRES 13 C 728 TYR ASN ASN ILE MET ARG HIS TYR LEU MET GLN LYS LEU SEQRES 14 C 728 LYS ASN ASN ARG LEU LYS LYS GLU ASN LYS PRO VAL ILE SEQRES 15 C 728 PRO LEU PRO GLN ILE LEU GLY LEU THR ALA SER PRO GLY SEQRES 16 C 728 VAL GLY GLY ALA THR LYS GLN ALA LYS ALA GLU GLU HIS SEQRES 17 C 728 ILE LEU LYS LEU CYS ALA ASN LEU ASP ALA PHE THR ILE SEQRES 18 C 728 LYS THR VAL LYS GLU ASN LEU ASP GLN LEU LYS ASN GLN SEQRES 19 C 728 ILE GLN GLU PRO CYS LYS LYS PHE ALA ILE ALA ASP ALA SEQRES 20 C 728 THR ARG GLU ASP PRO PHE LYS GLU LYS LEU LEU GLU ILE SEQRES 21 C 728 MET THR ARG ILE GLN THR TYR CYS GLN MET SER PRO MET SEQRES 22 C 728 SER ASP PHE GLY THR GLN PRO TYR GLU GLN TRP ALA ILE SEQRES 23 C 728 GLN MET GLU LYS LYS ALA ALA LYS GLU GLY ASN ARG LYS SEQRES 24 C 728 GLU ARG VAL CYS ALA GLU HIS LEU ARG LYS TYR ASN GLU SEQRES 25 C 728 ALA LEU GLN ILE ASN ASP THR ILE ARG MET ILE ASP ALA SEQRES 26 C 728 TYR THR HIS LEU GLU THR PHE TYR ASN GLU GLU LYS ASP SEQRES 27 C 728 LYS LYS PHE ALA VAL ILE GLU ASP ASP SER ASP GLU GLY SEQRES 28 C 728 GLY ASP ASP GLU TYR CYS ASP GLY ASP GLU ASP GLU ASP SEQRES 29 C 728 ASP LEU LYS LYS PRO LEU LYS LEU ASP GLU THR ASP ARG SEQRES 30 C 728 PHE LEU MET THR LEU PHE PHE GLU ASN ASN LYS MET LEU SEQRES 31 C 728 LYS ARG LEU ALA GLU ASN PRO GLU TYR GLU ASN GLU LYS SEQRES 32 C 728 LEU THR LYS LEU ARG ASN THR ILE MET GLU GLN TYR THR SEQRES 33 C 728 ARG THR GLU GLU SER ALA ARG GLY ILE ILE PHE THR LYS SEQRES 34 C 728 THR ARG GLN SER ALA TYR ALA LEU SER GLN TRP ILE THR SEQRES 35 C 728 GLU ASN GLU LYS PHE ALA GLU VAL GLY VAL LYS ALA HIS SEQRES 36 C 728 HIS LEU ILE GLY ALA GLY HIS SER SER GLU PHE LYS PRO SEQRES 37 C 728 MET THR GLN ASN GLU GLN LYS GLU VAL ILE SER LYS PHE SEQRES 38 C 728 ARG THR GLY LYS ILE ASN LEU LEU ILE ALA THR THR VAL SEQRES 39 C 728 ALA GLU GLU GLY LEU ASP ILE LYS GLU CYS ASN ILE VAL SEQRES 40 C 728 ILE ARG TYR GLY LEU VAL THR ASN GLU ILE ALA MET VAL SEQRES 41 C 728 GLN ALA ARG GLY ARG ALA ARG ALA ASP GLU SER THR TYR SEQRES 42 C 728 VAL LEU VAL ALA HIS SER GLY SER GLY VAL ILE GLU HIS SEQRES 43 C 728 GLU THR VAL ASN ASP PHE ARG GLU LYS MET MET TYR LYS SEQRES 44 C 728 ALA ILE HIS CYS VAL GLN ASN MET LYS PRO GLU GLU TYR SEQRES 45 C 728 ALA HIS LYS ILE LEU GLU LEU GLN MET GLN SER ILE MET SEQRES 46 C 728 GLU LYS LYS MET LYS THR LYS ARG ASN ILE ALA LYS HIS SEQRES 47 C 728 TYR LYS ASN ASN PRO SER LEU ILE THR PHE LEU CYS LYS SEQRES 48 C 728 ASN CYS SER VAL LEU ALA CYS SER GLY GLU ASP ILE HIS SEQRES 49 C 728 VAL ILE GLU LYS MET HIS HIS VAL ASN MET THR PRO GLU SEQRES 50 C 728 PHE LYS GLU LEU TYR ILE VAL ARG GLU ASN LYS ALA LEU SEQRES 51 C 728 GLN LYS LYS CYS ALA ASP TYR GLN ILE ASN GLY GLU ILE SEQRES 52 C 728 ILE CYS LYS CYS GLY GLN ALA TRP GLY THR MET MET VAL SEQRES 53 C 728 HIS LYS GLY LEU ASP LEU PRO CYS LEU LYS ILE ARG ASN SEQRES 54 C 728 PHE VAL VAL VAL PHE LYS ASN ASN SER THR LYS LYS GLN SEQRES 55 C 728 TYR LYS LYS TRP VAL GLU LEU PRO ILE THR PHE PRO ASN SEQRES 56 C 728 LEU ASP TYR SER GLU CYS CYS LEU PHE SER ASP GLU ASP SEQRES 1 B 13 C G G U U A G G G G C U A SEQRES 1 A 13 U A G C C C C U A A C C G HET MG C1101 1 HET MG C1102 1 HET ATP C1103 31 HETNAM MG MAGNESIUM ION HETNAM ATP ADENOSINE-5'-TRIPHOSPHATE FORMUL 4 MG 2(MG 2+) FORMUL 6 ATP C10 H16 N5 O13 P3 FORMUL 7 HOH *(H2 O) HELIX 1 AA1 ARG C 309 GLY C 322 1 14 HELIX 2 AA2 GLY C 334 ALA C 353 1 20 HELIX 3 AA3 LYS C 365 GLU C 376 1 12 HELIX 4 AA4 GLU C 376 LYS C 382 1 7 HELIX 5 AA5 THR C 394 ILE C 398 5 5 HELIX 6 AA6 SER C 399 CYS C 407 1 9 HELIX 7 AA7 ALA C 414 GLY C 427 1 14 HELIX 8 AA8 GLN C 433 PHE C 437 5 5 HELIX 9 AA9 CYS C 445 THR C 448 5 4 HELIX 10 AB1 ALA C 452 GLU C 474 1 23 HELIX 11 AB2 LYS C 498 LEU C 513 1 16 HELIX 12 AB3 ASN C 524 ILE C 532 1 9 HELIX 13 AB4 ASP C 548 GLN C 566 1 19 HELIX 14 AB5 THR C 575 GLU C 592 1 18 HELIX 15 AB6 ASN C 594 ILE C 617 1 24 HELIX 16 AB7 ARG C 618 GLU C 642 1 25 HELIX 17 AB8 ASP C 670 ASN C 693 1 24 HELIX 18 AB9 PRO C 694 GLU C 697 5 4 HELIX 19 AC1 ASN C 698 THR C 713 1 16 HELIX 20 AC2 THR C 727 ASN C 741 1 15 HELIX 21 AC3 ASN C 741 VAL C 747 1 7 HELIX 22 AC4 THR C 767 GLY C 781 1 15 HELIX 23 AC5 ASN C 812 GLY C 821 1 10 HELIX 24 AC6 GLY C 839 ASN C 863 1 25 HELIX 25 AC7 LYS C 865 ARG C 890 1 26 HELIX 26 AC8 ASN C 899 SER C 901 5 3 HELIX 27 AC9 THR C 932 TYR C 939 1 8 SHEET 1 AA1 7 VAL C 387 LEU C 390 0 SHEET 2 AA1 7 ILE C 409 THR C 413 1 O ILE C 411 N LEU C 390 SHEET 3 AA1 7 VAL C 359 VAL C 363 1 N VAL C 361 O ILE C 410 SHEET 4 AA1 7 LEU C 439 ASP C 443 1 O ILE C 441 N LEU C 362 SHEET 5 AA1 7 GLN C 483 THR C 488 1 O GLN C 483 N ILE C 440 SHEET 6 AA1 7 ILE C 325 CYS C 328 1 N ILE C 327 O GLY C 486 SHEET 7 AA1 7 THR C 517 LYS C 519 1 O LYS C 519 N ILE C 326 SHEET 1 AA2 6 CYS C 536 ALA C 542 0 SHEET 2 AA2 6 THR C 829 HIS C 835 1 O TYR C 830 N LYS C 538 SHEET 3 AA2 6 ILE C 803 TYR C 807 1 N ARG C 806 O VAL C 831 SHEET 4 AA2 6 GLY C 721 THR C 725 1 N ILE C 722 O ILE C 805 SHEET 5 AA2 6 ILE C 787 THR C 790 1 O ALA C 788 N ILE C 723 SHEET 6 AA2 6 ALA C 751 LEU C 754 1 N HIS C 752 O THR C 789 SHEET 1 AA3 3 LEU C 913 SER C 916 0 SHEET 2 AA3 3 ILE C 903 CYS C 907 -1 N PHE C 905 O ALA C 914 SHEET 3 AA3 3 PHE C 987 PHE C 991 -1 O VAL C 990 N THR C 904 SHEET 1 AA4 2 ILE C 920 ILE C 923 0 SHEET 2 AA4 2 HIS C 927 ASN C 930 -1 O VAL C 929 N HIS C 921 SHEET 1 AA5 4 ILE C 940 VAL C 941 0 SHEET 2 AA5 4 GLU C 959 ILE C 961 -1 O ILE C 961 N ILE C 940 SHEET 3 AA5 4 ALA C 967 HIS C 974 -1 O GLY C 969 N ILE C 960 SHEET 4 AA5 4 LEU C 977 LEU C 982 -1 O LEU C 979 N MET C 972 SSBOND 1 CYS C 565 CYS C 600 1555 1555 2.03 SSBOND 2 CYS C 907 CYS C 910 1555 1555 2.02 SSBOND 3 CYS C 907 CYS C 962 1555 1555 2.07 SSBOND 4 CYS C 910 CYS C 962 1555 1555 2.25 LINK MG MG C1101 O2G ATP C1103 1555 1555 2.15 LINK MG MG C1102 O1B ATP C1103 1555 1555 2.93 LINK MG MG C1102 O1A ATP C1103 1555 1555 2.91 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 2061 2345 CONECT 2345 2061 CONECT 4650 4673 5001 CONECT 4673 4650 5001 CONECT 5001 4650 4673 CONECT 5984 5988 CONECT 5985 5991 5995 CONECT 5986 5987 5988 5989 5993 CONECT 5987 5986 CONECT 5988 5984 5986 CONECT 5989 5986 CONECT 5990 5991 5992 5993 5997 CONECT 5991 5985 5990 CONECT 5992 5990 CONECT 5993 5986 5990 CONECT 5994 5995 5996 5997 5998 CONECT 5995 5985 5994 CONECT 5996 5994 CONECT 5997 5990 5994 CONECT 5998 5994 5999 CONECT 5999 5998 6000 CONECT 6000 5999 6001 6002 CONECT 6001 6000 6006 CONECT 6002 6000 6003 6004 CONECT 6003 6002 CONECT 6004 6002 6005 6006 CONECT 6005 6004 CONECT 6006 6001 6004 6007 CONECT 6007 6006 6008 6016 CONECT 6008 6007 6009 CONECT 6009 6008 6010 CONECT 6010 6009 6011 6016 CONECT 6011 6010 6012 6013 CONECT 6012 6011 CONECT 6013 6011 6014 CONECT 6014 6013 6015 CONECT 6015 6014 6016 CONECT 6016 6007 6010 6015 MASTER 248 0 3 27 22 0 0 6 6014 3 38 58 END