The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
GUIDANCE: a web server for assessing alignment confidence scores
Open accessAbstract
Evaluating the accuracy of multiple sequence alignment (MSA) is critical for virtually every comparative sequence analysis that uses an MSA as input. Here we present the GUIDANCE web-server, a user-friendly, open access tool for the identification of unreliable alignment regions. The web-server accepts as input a set of unaligned sequences. The server aligns the sequences and provides a simple graphic visualization of the confidence score of each column, residue and sequence of an alignment, using a color-coding scheme. The method is generic and the user is allowed to choose the alignment algorithm (ClustalW, MAFFT and PRANK are supported) as well as any type of molecular sequences (nucleotide, protein or codon sequences). The server implements two different algorithms for evaluating confidence scores: (i) the heads-or-tails (HoT) method, which measures alignment uncertainty due to co-optimal solutions; (ii) the GUIDANCE method, which measures the robustness of the alignment to guide-tree uncertainty. The server projects the confidence scores onto the MSA and points to columns and sequences that are unreliably aligned. These can be automatically removed in preparation for downstream analyses. GUIDANCE is freely available for use at http://guidance.tau.ac.il.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Alignment Uncertainty and Genomic Analysis
Wong, K. M., Suchard, M. A., & Huelsenbeck, J. P. (2008) · Science · doi:10.1126/science.1151532 · Cited by 411
Cited by
Sela, I., Ashkenazy, H., Katoh, K., & Pupko, T. (2015) · Nucleic Acids Research · doi:10.1093/nar/gkv318 · Cited by 835
Self-citationTan, G., Muffato, M., Ledergerber, C., Herrero, J., Goldman, N., Gil, M., & Dessimoz, C. (2015) · Systematic Biology · doi:10.1093/sysbio/syv033 · Cited by 261
Pitfalls in supermatrix phylogenomics
Philippe, H., Vienne, D. M. D., Ranwez, V., Roure, B., Baurain, D., & Delsuc, F. (2017) · European Journal of Taxonomy · doi:10.5852/ejt.2017.283 · Cited by 173
Horizontal gene transfer constrains the timing of methanogen evolution
Wolfe, J. M., & Fournier, G. P. (2018) · Nature Ecology & Evolution · doi:10.1038/s41559-018-0513-7 · Cited by 160
Evolution of sodium channels predates the origin of nervous systems in animals
Liebeskind, B. J., Hillis, D. M., & Zakon, H. H. (2011) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1106363108 · Cited by 149
Metadata
- Authors
- Penn, O., Privman, E., Ashkenazy, H., Landan, G., Graur, D., & Pupko, T.
- Venue
- Nucleic Acids Research
- Publisher
- Oxford University Press (OUP)
- Published
- 2010-05-23
- Volume
- 38
- Issue
- Web Server
- Pages
- W23-W28
- ISSN
- 0305-1048 (ISSN-L)
- 1362-4962
- OpenAlex
- W1996516710
- Cited by
- 624
- References
- 1
- FWCI
- 9.45
- Type
- journal article
- Language
- en
- Open access
- gold
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: GUIDANCE: a web server for assessing alignment confidence scores. https://app.cochat.ai/papers/10.1093/nar/gkq443
- The paper
- Penn, O., Privman, E., Ashkenazy, H., Landan, G., Graur, D., & Pupko, T. (2010). GUIDANCE: a web server for assessing alignment confidence scores. Nucleic Acids Research. https://doi.org/10.1093/nar/gkq443
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.