The manually curated dataset is adapted from the work of Xin et al. 2008 plus several new riboswitch and ribozyme structures. The complete list of manually curated structures is provided below:

Reference
Xin Y, Laing C, Leontis NB and Schlick T (2008) Annotation of tertiary interactions in
RNA structures reveals variations and correlations. RNA 14: 2465-2477.

PDBID	Structure Description	RNA_Class	Resolution
1c0a	CRYSTAL STRUCTURE OF THE E. COLI ASPARTYL-TRNA SYNTHETASE : TRNAASP : ASPARTYL-ADENYLATE COMPLEX	tRNA	2.4 Å
1ehz	The crystal structure of yeast phenylalanine tRNA at 1.93 A resolution	tRNA	1.9 Å
1et4	CRYSTAL STRUCTURE OF A VITAMIN B12 BINDING RNA APTAMER WITH LIGAND AT 2.3 A	aptamer	2.3 Å
1f1t	CRYSTAL STRUCTURE OF THE MALACHITE GREEN APTAMER COMPLEXED WITH TETRAMETHYL-ROSAMINE	aptamer	2.8 Å
1f27	Crystal structure of a biotin-binding RNA pseudoknot	other-RNA	1.3 Å
1f7y	THE CRYSTAL STRUCTURE OF TWO UUCG LOOPS HIGHLIGHTS THE ROLE PLAYED BY 2'-HYDROXYL GROUPS IN ITS UNUSUAL STABILITY	rRNA	2.8 Å
1feu	CRYSTAL STRUCTURE OF RIBOSOMAL PROTEIN TL5 ONE OF THE CTC FAMILY PROTEINS COMPLEXED WITH A FRAGMENT OF 5S RRNA	rRNA	2.3 Å
1ffk	CRYSTAL STRUCTURE OF THE LARGE RIBOSOMAL SUBUNIT FROM HALOARCULA MARISMORTUI AT 2.4 ANGSTROM RESOLUTION	rRNA	2.4 Å
1g1x	STRUCTURE OF RIBOSOMAL PROTEINS S15 S6 S18 AND 16S RIBOSOMAL RNA	rRNA	2.6 Å
1hq1	STRUCTURAL AND ENERGETIC ANALYSIS OF RNA RECOGNITION BY A UNIVERSALLY CONSERVED PROTEIN FROM THE SIGNAL RECOGNITION PARTICLE	protein-RNA	1.5 Å
1hr2	CRYSTAL STRUCTURE ANALYSIS OF A MUTANT P4-P6 DOMAIN (DELC209) OF TETRAHYMENA THEMOPHILA GROUP I INTRON	ribozyme	2.2 Å
1j5e	Structure of the Thermus thermophilus 30S Ribosomal Subunit	rRNA	3.0 Å
1jzv	Crystal Structure of a Bulged RNA from the SL2 Stem-loop of the HIV-1 psi-RNA	other-RNA	1.7 Å
1kh6	Crystal Structure of an RNA Tertiary Domain Essential to HCV IRES-mediated Translation Initiation	other-RNA	2.9 Å
1kxk	Crystal Structure of a RNA Molecule Containing Domain 5 and 6 of the Yeast ai5g Group II Self-splicing Intron	ribozyme	3.0 Å
1l2x	Atomic Resolution Crystal Structure of a Viral RNA Pseudoknot	other-RNA	1.2 Å
1l9a	CRYSTAL STRUCTURE OF SRP19 IN COMPLEX WITH THE S DOMAIN OF SIGNAL RECOGNITION PARTICLE RNA	protein-RNA	2.9 Å
1m5k	Crystal structure of a hairpin ribozyme in the catalytically-active conformation	ribozyme	2.4 Å
1mhk	The crystal structure of a 26-nucleotide RNA containing a hook-turn	other-RNA	2.5 Å
1mms	Crystal structure of the ribosomal PROTEIN L11-RNA complex	rRNA	2.5 Å
1mzp	Structure of the L1 protuberance in the ribosome	rRNA	2.6 Å
1n78	Crystal structure of Thermus thermophilus glutamyl-tRNA synthetase complexed with tRNA(Glu) and glutamol-AMP	tRNA	2.1 Å
1ntb	2.9 A crystal structure of Streptomycin RNA-aptamer complex	aptamer	2.9 Å
1nyi	Crosslinked Hammerhead Ribozyme Initial State	ribozyme	2.8 Å
1q9a	Crystal structure of the sarcin/ricin domain from E.coli 23S rRNA at 1.04 resolution	other-RNA	1.0 Å
1ser	THE 2.9 ANGSTROMS CRYSTAL STRUCTURE OF T. THERMOPHILUS SERYL-TRNA SYNTHETASE COMPLEXED WITH TRNA SER	tRNA	2.9 Å
1sj3	Hepatitis Delta Virus Gemonic Ribozyme Precursor with Mg2+ Bound	ribozyme	2.2 Å
1u0b	Crystal structure of cysteinyl-tRNA synthetase binary complex with tRNACys	tRNA	2.3 Å
1u9s	Crystal structure of the specificity domain of Ribonuclease P of the A-type	ribozyme	2.9 Å
1xjr	The Structure of a Rigorously Conserved RNA Element Within the SARS Virus Genome	other-RNA	2.7 Å
1y26	A-riboswitch-adenine complex	riboswitch	2.1 Å
2fk6	Crystal Structure of RNAse Z/tRNA(Thr) complex	tRNA	2.9 Å
2gcv	Post-cleavage state of the Thermoanaerobacter tengcongensis glmS ribozyme	ribozyme	2.1 Å
2gdi	Crystal structure of thiamine pyrophosphate-specific riboswitch in complex with thiamine pyrophosphate	riboswitch	2.0 Å
2gis	Structure of the S-adenosylmethionine riboswitch mRNA regulatory element	riboswitch	2.9 Å
2hw8	Structure of ribosomal protein L1-mRNA complex at 2.1 resolution	protein-RNA	2.1 Å
2oiu	L1 Ribozyme Ligase circular adduct	ribozyme	2.6 Å
2ozb	Structure of a human Prp31-15.5K-U4 snRNA complex	protein-RNA	2.6 Å
2qwy	SAM-II riboswitch bound to S-adenosylmethionine	riboswitch	2.8 Å
2vpl	THE STRUCTURE OF THE COMPLEX BETWEEN THE FIRST DOMAIN OF L1 PROTEIN FROM THERMUS THERMOPHILUS AND MRNA FROM METHANOCOCCUS JANNASCHII	protein-RNA	2.3 Å
2xdb	A PROCESSED NON-CODING RNA REGULATES A BACTERIAL ANTIVIRAL SYSTEM	protein-RNA	2.5 Å
3d2v	Structure of the eukaryotic TPP-specific riboswitch bound to the antibacterial compound pyrithiamine pyrophosphate	riboswitch	2.0 Å
3dil	Crystal structure of the Thermotoga maritima lysine riboswitch bound to lysine	riboswitch	1.9 Å
3e5c	Crystal Structure of the SMK box (SAM-III) Riboswitch with SAM	riboswitch	2.2 Å
3egz	Crystal structure of an in vitro evolved tetracycline aptamer and artificial riboswitch	aptamer	2.2 Å
3f2q	Crystal structure of the FMN riboswitch bound to FMN	riboswitch	2.9 Å
3fu2	Cocrystal structure of a class-I preQ1 riboswitch	riboswitch	2.8 Å
3g78	Insight into group II intron catalysis from revised crystal structure	ribozyme	2.8 Å
3gs1	An all-RNA Hairpin Ribozyme with mutation A38N1dA	ribozyme	2.8 Å
3hhn	Crystal structure of class I ligase ribozyme self-ligation product in complex with U1A RBD	ribozyme	2.9 Å
3iab	Crystal structure of RNase P /RNase MRP proteins Pop6 Pop7 in a complex with the P3 domain of RNase MRP RNA	ribozyme	2.7 Å
3l0u	The crystal structure of unmodified tRNAPhe from Escherichia coli	tRNA	3.0 Å
3l3c	Crystal structure of the Bacillus anthracis glmS ribozyme bound to Glc6P	ribozyme	2.8 Å
3mxh	Native structure of a c-di-GMP riboswitch from V. cholerae	riboswitch	2.3 Å
3ndb	Crystal structure of a signal sequence bound to the signal recognition particle	protein-RNA	3.0 Å
3nkb	A 1.9A crystal structure of the HDV ribozyme precleavage suggests both Lewis acid and general acid mechanisms contribute to phosphodiester cleavage	ribozyme	1.9 Å
3oww	Crystal structure of the glycine riboswitch bound to glycine	riboswitch	2.8 Å
3p22	Crystal structure of the ENE a viral RNA stability element in complex with A9 RNA	other-RNA	2.5 Å
3pdr	Crystal structure of manganese bound M-box RNA	riboswitch	1.8 Å
3q3z	Structure of a c-di-GMP-II riboswitch from C. acetobutylicum bound to c-di-GMP	riboswitch	2.5 Å
3sd1	The structure of a tetrahydrofolate riboswitch	riboswitch	2.2 Å
3ski	Crystal structure of the 2'- Deoxyguanosine riboswitch bound to 2'-deoxyguanosine	riboswitch	2.3 Å
430d	STRUCTURE OF SARCIN/RICIN LOOP FROM RAT 28S RRNA	other-RNA	2.1 Å
4enc	Crystal structure of fluoride riboswitch	riboswitch	2.2 Å