STRUCTURE OF H/ACA RNP BOUND TO A SUBSTRATE RNA CONTAINING 2'- DEOXYURIDINE 3LWV ISOMERASE/RNA BINDING PROTEIN/RNA, H/ACA PSEUDOURIDINE SYNTHASE, ISOMERASE, TRNA PROCESSING, RIBONUCLEOPROTEIN, RIBOSOME BIOGENESIS, RRNA PROCESSING, RIBOSOMAL PROTEIN, RNA-BINDING, ISOMERASE-RNA BINDING PROTEIN-RNA COMPLEX