Last modified on 11 October 2011.
Sections on This Page:
- Primary Alignments: our largest and most complete collections of well-aligned sequences.
- Seed Alignments: derived from primary alignments, smaller alignments that have been highly refined; useful starting points for new alignments.
- Specialized Alignments: derived from primary alignments, phylogenetic subsets of the major alignments.
- Pre-Primary Alignments: precursors to primary alignments; more sequences, but parts of the alignment are unrefined (particularly ends of sequences and variable regions).
- rCAD Datasets: Ribosomal RNA datasets, including structure models spanning the Tree of Life, formatted for import into the rCAD database.
- Alignments Used in Specific Analyses: alignments that have appeared in Gutell Lab publications.
Additional Information:
Primary Alignments:
Table 1: Ribosomal RNA Alignments
Table 2: Intron RNA Alignments
Table 3: Transfer RNA Alignments
| Alignment (Abbreviation) [Type] |
Non-Mitochondrial tRNA |
Mitochondrial tRNA |
| AE2 | GB | alnFA | rawFA | Seqs |
AE2 | GB | alnFA | rawFA | Seqs |
| Alanine (A) [Type 1] |
AE2 | GB | alnFA | rawFA | 4,705 |
N/A |
| Cysteine (C) [Type 1] |
AE2 | GB | alnFA | rawFA | 890 |
N/A |
| Aspartate (D) [Type 1] |
AE2 | GB | alnFA | rawFA | 1,455 |
N/A |
| Glutamate (E) [Type 1] |
AE2 | GB | alnFA | rawFA | 1,935 |
N/A |
| Phenylalanine (F) [Type 1] |
AE2 | GB | alnFA | rawFA | 7,723 |
N/A |
| Glycine (G) [Type 1] |
AE2 | GB | alnFA | rawFA | 2,713 |
N/A |
| Histidine (H) [Type 1] |
AE2 | GB | alnFA | rawFA | 1,802 |
N/A |
| Isoleucine (I) [Type 1] |
AE2 | GB | alnFA | rawFA | 4,774 |
N/A |
| Lysine (K) [Type 1] |
AE2 | GB | alnFA | rawFA | 1,935 |
N/A |
| Methionine (M) [Type 1] |
AE2 | GB | alnFA | rawFA | 1,886 |
N/A |
| Asparagine (N) [Type 1] |
AE2 | GB | alnFA | rawFA | 1,261 |
N/A |
| Proline (P) [Type 1] |
AE2 | GB | alnFA | rawFA | 1,451 |
N/A |
| Glutamine (Q) [Type 1] |
AE2 | GB | alnFA | rawFA | 1,230 |
N/A |
| Tryptophan (W) [Type 1] |
AE2 | GB | alnFA | rawFA | 803 |
N/A |
| Tyrosine (Y1) [Type 1] |
AE2 | GB | alnFA | rawFA | 187 |
N/A |
Seed Alignments:
Specialized Alignments:
Table 1: Ribosomal RNA Alignments
Pre-Primary Alignments:
Table 1: Ribosomal RNA Alignments
Additional subalignments (marked "FUTURE") and filetypes (AE2, GB, rawFASTA) will be available once the CRW Site migrates to its new server (see the front page for details).
| Alignment (Abbreviation) |
5S rRNA |
16S rRNA |
23S rRNA |
| AE2 | GB | alnFA | rawFA | Seqs |
AE2 | GB | alnFA | rawFA | Seqs |
AE2 | GB | alnFA | rawFA | Seqs |
| Bacteria |
N/A |
AE2 | GB | alnFA | rawFA | 172,373 |
N/A |
| Actinobacteria |
N/A |
FUTURE | 18,013 |
N/A |
| Aquificae |
N/A |
FUTURE | 397 |
N/A |
| Bacteroidetes/Chlorobi group |
N/A |
FUTURE | 7,396 |
N/A |
| Caldiserica |
N/A |
FUTURE | 11 |
N/A |
| Chlamydiae/Verrucomicrobia group |
N/A |
FUTURE | 135 |
N/A |
| Chloroflexi |
N/A |
FUTURE | 32 |
N/A |
| Cyanobacteria |
N/A |
AE2 | GB | alnFA | rawFA | 2,770 |
N/A |
| Deinococcus-Thermus |
N/A |
FUTURE | 239 |
N/A |
| Dictyoglomi |
N/A |
FUTURE | 3 |
N/A |
| Fibrobacteres/Acidobacteria group |
N/A |
FUTURE | 68 |
N/A |
| Firmicutes |
N/A |
AE2 | GB | alnFA | rawFA | 33,658 |
N/A |
| Bacilli |
N/A |
FUTURE | 28,385 |
N/A |
| Clostridia |
N/A |
FUTURE | 4,007 |
N/A |
| Fusobacteria |
N/A |
FUTURE | 362 |
N/A |
| Nitrospirae |
N/A |
FUTURE | 161 |
N/A |
| Planctomycetes |
N/A |
FUTURE | 418 |
N/A |
| Proteobacteria |
N/A |
FUTURE | 85,665 |
N/A |
| Alphaproteobacteria |
N/A |
FUTURE | 20,740 |
N/A |
| Betaproteobacteria |
N/A |
FUTURE | 16,035 |
N/A |
| Delta/Epsilon subdivisions |
N/A |
FUTURE | 4,492 |
N/A |
| Deltaproteobacteria |
N/A |
FUTURE | 2,739 |
N/A |
| Epsilonproteobacteria |
N/A |
FUTURE | 1,754 |
N/A |
| Gammaproteobacteria |
N/A |
AE2 | GB | alnFA | rawFA | 44,118 |
N/A |
| Spirochaetes |
N/A |
AE2 | GB | alnFA | rawFA | 1,890 |
N/A |
| Synergistetes |
N/A |
FUTURE | 1 |
N/A |
| Tenericutes |
N/A |
AE2 | GB | alnFA | rawFA | 1,459 |
N/A |
| Thermodesulfobacteria |
N/A |
FUTURE | 12 |
N/A |
| Thermotogae |
N/A |
FUTURE | 215 |
N/A |
| unclassified Bacteria |
N/A |
FUTURE | 2,057 |
N/A |
| environmental samples |
N/A |
FUTURE | 68,123 |
N/A |
rCAD Data Sets in CRW Format:
| Alignment (Abbreviation) |
5S rRNA |
16S rRNA |
23S rRNA |
| CRW | Seqs | Str |
CRW | Seqs | Str |
CRW | Seqs | Str |
| Three Phylogenetic Domains |
CRW |
5355 |
2908 |
CRW |
5762 |
2361 |
CRW |
670 |
0 |
Alignments Used in Specific Analyses:
| Reference |
Description |
Alignments |
| 4A (2003). rRNA Spliceosomal Introns |
SSU rRNA: All Fungi (1434 sequences) |
AE2 | GB |
| SSU rRNA: Spliceosomal Intron-Lacking Fungi (1361 sequences) |
AE2 | GB |
| SSU rRNA: Spliceosomal Intron-Containing Fungi (73 sequences) |
AE2 | GB |
| LSU rRNA: All Fungi (880 sequences) |
AE2 | GB |
| LSU rRNA: Spliceosomal Intron-Lacking Fungi (840 sequences) |
AE2 | GB |
| LSU rRNA: Spliceosomal Intron-Containing Fungi (40 sequences) |
AE2 | GB |
| 4B (2001). AA.AG@helix.ends |
SSU rRNA (Bacteria) |
AE2 | GB |
| SSU rRNA (Archaea) |
AE2 | GB |
| SSU rRNA (Eucarya (Nuclear)) |
AE2 | GB |
| SSU rRNA (Eucarya (Chloroplast)) |
AE2 | GB |
| SSU rRNA (Eucarya (Mitochondria)) |
AE2 | GB |
| LSU rRNA (Bacteria) |
AE2 | GB |
| LSU rRNA (Archaea) |
AE2 | GB |
| LSU rRNA (Eucarya (Nuclear)) |
AE2 | GB |
| LSU rRNA (Eucarya (Chloroplast)) |
AE2 | GB |
| LSU rRNA (Eucarya (Mitochondria)) |
AE2 | GB |
| 4D (2000). Mollusk Mitochondria |
Eleven mollusk sequences, plus Drosophila and Escherichia as reference points. |
GB |
| 4D (2001). Polytoma Leucoplasts |
16S rRNA sequence alignment (five chloroplasts, E. coli, and a chloroplast consensus). |
GB | PHYLIP |
| 4D (2003). ITS (Asteraceae) |
Alignment of ITS1, 5.8S rRNA, and ITS2. |
AE2 | GB | Nexus |
| 4D (2006). Diatom Shape |
Alignment of 181 diatom taxa, plus E. coli and outgroup sequences. |
AE2 | GB | Nexus |
| 4E (2001). Red Algae / Brown Algae |
604 SSU rRNA sequences. |
AE2 | GB |
| 452 Group I intron sequences. |
AE2 | GB |
| 4E (2005). Fungi / Red Algae |
Alignment of fifty Group IE Intron sequences; Nexus file contains analyzed columns only. |
AE2 | GB | Nexus |