- Sweeney, Blake A;
- Petrov, Anton I;
- Ribas, Carlos E;
- Finn, Robert D;
- Bateman, Alex;
- Szymanski, Maciej;
- Karlowski, Wojciech M;
- Seemann, Stefan E;
- Gorodkin, Jan;
- Cannone, Jamie J;
- Gutell, Robin R;
- Kay, Simon;
- Marygold, Steven;
- dos Santos, Gil;
- Frankish, Adam;
- Mudge, Jonathan M;
- Barshir, Ruth;
- Fishilevich, Simon;
- Chan, Patricia P;
- Lowe, Todd M;
- Seal, Ruth;
- Bruford, Elspeth;
- Panni, Simona;
- Porras, Pablo;
- Karagkouni, Dimitra;
- Hatzigeorgiou, Artemis G;
- Ma, Lina;
- Zhang, Zhang;
- Volders, Pieter-Jan;
- Mestdagh, Pieter;
- Griffiths-Jones, Sam;
- Fromm, Bastian;
- Peterson, Kevin J;
- Kalvari, Ioanna;
- Nawrocki, Eric P;
- Petrov, Anton S;
- Weng, Shuai;
- Bouchard-Bourelle, Philia;
- Scott, Michelle;
- Lui, Lauren M;
- Hoksza, David;
- Lovering, Ruth C;
- Kramarz, Barbara;
- Mani, Prita;
- Ramachandran, Sridhar;
- Weinberg, Zasha
RNAcentral is a comprehensive database of non-coding RNA (ncRNA) sequences that provides a single access point to 44 RNA resources and >18 million ncRNA sequences from a wide range of organisms and RNA types. RNAcentral now also includes secondary (2D) structure information for >13 million sequences, making RNAcentral the world's largest RNA 2D structure database. The 2D diagrams are displayed using R2DT, a new 2D structure visualization method that uses consistent, reproducible and recognizable layouts for related RNAs. The sequence similarity search has been updated with a faster interface featuring facets for filtering search results by RNA type, organism, source database or any keyword. This sequence search tool is available as a reusable web component, and has been integrated into several RNAcentral member databases, including Rfam, miRBase and snoDB. To allow for a more fine-grained assignment of RNA types and subtypes, all RNAcentral sequences have been annotated with Sequence Ontology terms. The RNAcentral database continues to grow and provide a central data resource for the RNA community. RNAcentral is freely available at https://rnacentral.org.