HEADER    RNA                                     01-JUN-21   7EZ0              
TITLE     APO L-21 SCAI TETRAHYMENA RIBOZYME                                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: APO L-21 SCAI TETRAHYMENA RIBOZYME;                        
COMPND   3 CHAIN: N;                                                            
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: TETRAHYMENA THERMOPHILA;                        
SOURCE   3 ORGANISM_TAXID: 5911;                                                
SOURCE   4 EXPRESSION_SYSTEM: SYNTHETIC CONSTRUCT;                              
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 32630                                       
KEYWDS    RNA STRUCTURE, TETRAHYMENA RIBOZYME, RNA                              
EXPDTA    ELECTRON MICROSCOPY                                                   
AUTHOR    Z.SU,K.ZHANG,K.KAPPEL,B.LUO,R.DAS,W.CHIU                              
REVDAT   3   12-JUN-24 7EZ0    1       REMARK                                   
REVDAT   2   16-FEB-22 7EZ0    1       JRNL                                     
REVDAT   1   25-AUG-21 7EZ0    0                                                
JRNL        AUTH   Z.SU,K.ZHANG,K.KAPPEL,S.LI,M.Z.PALO,G.D.PINTILIE,R.RANGAN,   
JRNL        AUTH 2 B.LUO,Y.WEI,R.DAS,W.CHIU                                     
JRNL        TITL   CRYO-EM STRUCTURES OF FULL-LENGTH TETRAHYMENA RIBOZYME AT    
JRNL        TITL 2 3.1 ANGSTROM RESOLUTION.                                     
JRNL        REF    NATURE                        V. 596   603 2021              
JRNL        REFN                   ESSN 1476-4687                               
JRNL        PMID   34381213                                                     
JRNL        DOI    10.1038/S41586-021-03803-W                                   
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.14 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   SOFTWARE PACKAGES      : EPU, CTFFIND, RELION, UCSF CHIMERA,       
REMARK   3                            PHENIX, COOT, RELION, RELION, RELION,     
REMARK   3                            RELION                                    
REMARK   3   RECONSTRUCTION SCHEMA  : FOURIER SPACE                             
REMARK   3                                                                      
REMARK   3 EM MAP-MODEL FITTING AND REFINEMENT                                  
REMARK   3   PDB ENTRY                    : 6WLS                                
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)  : 3.140                          
REMARK   3   NUMBER OF PARTICLES               : 415918                         
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 7EZ0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 03-JUN-21.                  
REMARK 100 THE DEPOSITION ID IS D_1300022412.                                   
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                 : APO L-21 SCAI TETRAHYMENA         
REMARK 245                                    RIBOZYME WITH METAL IONS.         
REMARK 245   SAMPLE CONCENTRATION (MG ML-1) : 3.00                              
REMARK 245   SAMPLE SUPPORT DETAILS         : NULL                              
REMARK 245   SAMPLE VITRIFICATION DETAILS   : NULL                              
REMARK 245   SAMPLE BUFFER                  : NULL                              
REMARK 245   PH                             : 8.10                              
REMARK 245   SAMPLE DETAILS                 : NULL                              
REMARK 245                                                                      
REMARK 245 DATA ACQUISITION                                                     
REMARK 245   DATE OF EXPERIMENT                : NULL                           
REMARK 245   NUMBER OF MICROGRAPHS-IMAGES      : 7577                           
REMARK 245   TEMPERATURE (KELVIN)              : NULL                           
REMARK 245   MICROSCOPE MODEL                  : FEI TITAN KRIOS                
REMARK 245   DETECTOR TYPE                     : GATAN K2 QUANTUM (4K X 4K)     
REMARK 245   MINIMUM DEFOCUS (NM)              : 300.00                         
REMARK 245   MAXIMUM DEFOCUS (NM)              : 1500.00                        
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)  : 7500.00                        
REMARK 245   ILLUMINATION MODE                 : FLOOD BEAM                     
REMARK 245   NOMINAL MAGNIFICATION             : 215000                         
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: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: N                                     
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 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       G N  22    O5'                                                 
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 N 523  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A N 172   OP2                                                    
REMARK 620 2   A N 173   OP2  72.5                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG N 505  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A N 183   OP1                                                    
REMARK 620 2   A N 184   OP2  84.1                                              
REMARK 620 3   A N 186   OP2  95.2  76.6                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG N 504  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A N 184   OP1                                                    
REMARK 620 2   A N 186   OP1  91.5                                              
REMARK 620 3   A N 187   OP2 171.1  88.5                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG N 502  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A N 207   OP1                                                    
REMARK 620 2   C N 262   OP2 141.7                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG N 511  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A N 256   OP1                                                    
REMARK 620 2   U N 273   OP1  88.5                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG N 515  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G N 257   OP1                                                    
REMARK 620 2   U N 258   OP2  73.0                                              
REMARK 620 3   C N 260   O2  126.1 122.1                                        
REMARK 620 4   U N 305   OP2  90.7 104.7 125.8                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG N 519  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A N 301   OP1                                                    
REMARK 620 2   A N 302   OP2  89.1                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG N 526  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A N 304   OP1                                                    
REMARK 620 2   A N 306   OP1  64.5                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG N 527  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   U N 307   OP2                                                    
REMARK 620 2   A N 308   OP2  91.2                                              
REMARK 620 N                    1                                               
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: EMD-21840   RELATED DB: EMDB                             
REMARK 900 RELATED ID: EMD-31385   RELATED DB: EMDB                             
REMARK 900 APO L-21 SCAI TETRAHYMENA RIBOZYME                                   
DBREF  7EZ0 N   22   408  GB     10832    X54512.1      7030   7416             
SEQRES   1 N  387    G   G   A   G   G   G   A   A   A   A   G   U   U          
SEQRES   2 N  387    A   U   C   A   G   G   C   A   U   G   C   A   C          
SEQRES   3 N  387    C   U   G   G   U   A   G   C   U   A   G   U   C          
SEQRES   4 N  387    U   U   U   A   A   A   C   C   A   A   U   A   G          
SEQRES   5 N  387    A   U   U   G   C   A   U   C   G   G   U   U   U          
SEQRES   6 N  387    A   A   A   A   G   G   C   A   A   G   A   C   C          
SEQRES   7 N  387    G   U   C   A   A   A   U   U   G   C   G   G   G          
SEQRES   8 N  387    A   A   A   G   G   G   G   U   C   A   A   C   A          
SEQRES   9 N  387    G   C   C   G   U   U   C   A   G   U   A   C   C          
SEQRES  10 N  387    A   A   G   U   C   U   C   A   G   G   G   G   A          
SEQRES  11 N  387    A   A   C   U   U   U   G   A   G   A   U   G   G          
SEQRES  12 N  387    C   C   U   U   G   C   A   A   A   G   G   G   U          
SEQRES  13 N  387    A   U   G   G   U   A   A   U   A   A   G   C   U          
SEQRES  14 N  387    G   A   C   G   G   A   C   A   U   G   G   U   C          
SEQRES  15 N  387    C   U   A   A   C   C   A   C   G   C   A   G   C          
SEQRES  16 N  387    C   A   A   G   U   C   C   U   A   A   G   U   C          
SEQRES  17 N  387    A   A   C   A   G   A   U   C   U   U   C   U   G          
SEQRES  18 N  387    U   U   G   A   U   A   U   G   G   A   U   G   C          
SEQRES  19 N  387    A   G   U   U   C   A   C   A   G   A   C   U   A          
SEQRES  20 N  387    A   A   U   G   U   C   G   G   U   C   G   G   G          
SEQRES  21 N  387    G   A   A   G   A   U   G   U   A   U   U   C   U          
SEQRES  22 N  387    U   C   U   C   A   U   A   A   G   A   U   A   U          
SEQRES  23 N  387    A   G   U   C   G   G   A   C   C   U   C   U   C          
SEQRES  24 N  387    C   U   U   A   A   U   G   G   G   A   G   C   U          
SEQRES  25 N  387    A   G   C   G   G   A   U   G   A   A   G   U   G          
SEQRES  26 N  387    A   U   G   C   A   A   C   A   C   U   G   G   A          
SEQRES  27 N  387    G   C   C   G   C   U   G   G   G   A   A   C   U          
SEQRES  28 N  387    A   A   U   U   U   G   U   A   U   G   C   G   A          
SEQRES  29 N  387    A   A   G   U   A   U   A   U   U   G   A   U   U          
SEQRES  30 N  387    A   G   U   U   U   U   G   G   A   G                      
HET     MG  N 501       1                                                       
HET     MG  N 502       1                                                       
HET     MG  N 503       1                                                       
HET     MG  N 504       1                                                       
HET     MG  N 505       1                                                       
HET     MG  N 506       1                                                       
HET     MG  N 507       1                                                       
HET     MG  N 508       1                                                       
HET     MG  N 509       1                                                       
HET     MG  N 510       1                                                       
HET     MG  N 511       1                                                       
HET     MG  N 512       1                                                       
HET     MG  N 513       1                                                       
HET     MG  N 514       1                                                       
HET     MG  N 515       1                                                       
HET     MG  N 516       1                                                       
HET     MG  N 517       1                                                       
HET     MG  N 518       1                                                       
HET     MG  N 519       1                                                       
HET     MG  N 520       1                                                       
HET     MG  N 521       1                                                       
HET     MG  N 522       1                                                       
HET     MG  N 523       1                                                       
HET     MG  N 524       1                                                       
HET     MG  N 525       1                                                       
HET     MG  N 526       1                                                       
HET     MG  N 527       1                                                       
HETNAM      MG MAGNESIUM ION                                                    
FORMUL   2   MG    27(MG 2+)                                                    
LINK         OP2   G N 149                MG    MG N 510     1555   1555  2.46  
LINK         O6    G N 164                MG    MG N 507     1555   1555  1.85  
LINK         OP2   A N 171                MG    MG N 522     1555   1555  2.05  
LINK         OP2   A N 172                MG    MG N 523     1555   1555  2.04  
LINK         OP2   A N 173                MG    MG N 523     1555   1555  2.60  
LINK         OP1   A N 183                MG    MG N 505     1555   1555  2.22  
LINK         OP1   A N 184                MG    MG N 504     1555   1555  1.80  
LINK         OP2   A N 184                MG    MG N 505     1555   1555  2.22  
LINK         OP1   A N 186                MG    MG N 504     1555   1555  1.83  
LINK         OP2   A N 186                MG    MG N 505     1555   1555  2.24  
LINK         OP2   A N 187                MG    MG N 504     1555   1555  1.92  
LINK         OP1   A N 207                MG    MG N 502     1555   1555  2.05  
LINK         OP2   A N 214                MG    MG N 514     1555   1555  2.12  
LINK         OP1   A N 256                MG    MG N 511     1555   1555  2.00  
LINK         OP1   G N 257                MG    MG N 515     1555   1555  2.65  
LINK         OP2   U N 258                MG    MG N 515     1555   1555  2.28  
LINK         OP1   U N 258                MG    MG N 516     1555   1555  2.49  
LINK         OP1   U N 259                MG    MG N 517     1555   1555  2.17  
LINK         O2    C N 260                MG    MG N 515     1555   1555  2.67  
LINK         OP2   C N 262                MG    MG N 502     1555   1555  2.49  
LINK         OP1   U N 273                MG    MG N 511     1555   1555  2.53  
LINK         OP1   A N 301                MG    MG N 519     1555   1555  2.22  
LINK         OP2   A N 302                MG    MG N 519     1555   1555  1.81  
LINK         OP1   A N 304                MG    MG N 526     1555   1555  2.78  
LINK         OP2   U N 305                MG    MG N 515     1555   1555  2.14  
LINK         OP1   U N 305                MG    MG N 518     1555   1555  2.58  
LINK         OP1   A N 306                MG    MG N 526     1555   1555  2.26  
LINK         OP2   U N 307                MG    MG N 527     1555   1555  2.21  
LINK         OP2   A N 308                MG    MG N 527     1555   1555  2.20  
CRYST1    1.000    1.000    1.000  90.00  90.00  90.00 P 1           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