Summary information and primary citation
- PDB-id
- 8q91; SNAP-derived features in text and JSON formats;
DNAproDB
- Class
- splicing
- Method
- cryo-EM (3.1 Å)
- Summary
- Structure of the human 20s u5 snrnp core
- Reference
- Schneider S, Brandina I, Peter D, Lagad S, Fraudeau A, Portell-Montserrat J, Tholen J, Zhao J, Galej WP (2024): "Structure of the human 20S U5 snRNP." Nat.Struct.Mol.Biol., 31, 752-756. doi: 10.1038/s41594-024-01250-5.
- Abstract
- The 20S U5 small nuclear ribonucleoprotein particle (snRNP) is a 17-subunit RNA-protein complex and a precursor of the U4/U6.U5 tri-snRNP, the major building block of the precatalytic spliceosome. CD2BP2 is a hallmark protein of the 20S U5 snRNP, absent from the mature tri-snRNP. Here we report a high-resolution cryogenic electron microscopy structure of the 20S U5 snRNP, shedding light on the mutually exclusive interfaces utilized during tri-snRNP assembly and the role of the CD2BP2 in facilitating this process.
