REMARK 250 Model edited with rna-tools
REMARK 250  ver 3.8.13.1+39.gca2dada6.dirty 
REMARK 250  https://github.com/mmagnus/rna-tools 
REMARK 250  Mon Jan 26 15:55:26 2026
REMARK 250 Fixed atoms/residues:
REMARK 250  - add OP3 at the beginning of the chain  in chain: A <Residue C het=  resseq=1 icode= > residue # 1
ATOM      1  P     C A   1       8.626  13.675  -7.316  1.00 11.89           P  
ATOM      2  OP1   C A   1      10.038  13.221  -7.305  1.00 14.35           O  
ATOM      3  OP2   C A   1       7.531  12.708  -7.492  1.00 12.68           O  
ATOM      4  O5'   C A   1       8.285  14.491  -5.998  1.00 10.34           O  
DONE!