Showing posts with label annotation. Show all posts
Showing posts with label annotation. Show all posts

Sunday, March 11, 2012

Wanted - opinions/details on online systems for annotation of genomes and metagenomes

Doing a little survey/snooping around.  Trying to compile a list of available online tools for annotating microbial genomes and metagenomes.  And I am also trying to get comments on what people think of the various tools.  There are some obvious candidates to think about
But given that there are certainly many many more out there I decided to post a request to Twitter and Google plus and got some responses.


  • Jonathan Eisen ‏ @phylogenomics
    • Researching blog post on free/online microbial genome/metagenome annotation services - looking for examples beyond IMG & RAST
  • Mick Watson @BioMickWatson
  • Ewan Birney ‏ @ewanbirney 
  • Mick Watson ‏ @BioMickWatson 
    • @ewanbirney @phylogenomics @EBImetagenomics needs illumina support, and support of assemblies :/


And from Google Plus where I asked "Researching blog post on free/online microbial genome/metagenome annotation services - looking for examples beyond IMG & RAST ":




Monday, December 19, 2011

Important paper on annotation standards for bacterial/archaeal genomes - readying for the "data deluge"

Interesting paper in the journal "Standards in Genomic Sciences" that is worth checking out for anyone interested in genome sequencing and annotation. The paper is "Solving the Problem: Genome Annotation Standards before the Data Deluge" by William (aka Bill) Klimke et al.

It discusses the development of international annotation standards at NCBI (The National Center for Biotechnology Information) in collaboration with others. Note - the paper is Open Access.

Their abstract:
The promise of genome sequencing was that the vast undiscovered country would be mapped out by comparison of the multitude of sequences available and would aid researchers in deciphering the role of each gene in every organism. Researchers recognize that there is a need for high quality data. However, different annotation procedures, numerous databases, and a diminishing percentage of experimentally determined gene functions have resulted in a spectrum of annotation quality. NCBI in collaboration with sequencing centers, archival databases, and researchers, has developed the first international annotation standards, a fundamental step in ensuring that high quality complete prokaryotic genomes are available as gold standard references. Highlights include the development of annotation assessment tools, community acceptance of protein naming standards, comparison of annotation resources to provide consistent annotation, and improved tracking of the evidence used to generate a particular annotation. The development of a set of minimal standards, including the requirement for annotated complete prokaryotic genomes to contain a full set of ribosomal RNAs, transfer RNAs, and proteins encoding core conserved functions, is an historic milestone. The use of these standards in existing genomes and future submissions will increase the quality of databases, enabling researchers to make accurate biological discoveries.
The paper refers extensively to workshops held by NCBI on genome annotation and gives a link to a page from NCBI with additional information about these workshops.

Now - never mind the extensive use of the term prokaryote in the paper ... the paper has got a wealth of information and tidbits worth checking out.

For example the paper has a nice table on annotation tools and databases and resources.

Among the other sections worth checking out
* Discussion of pseudogene annotation and identification
* Discussion of variation in structural annotation
* Evidence standards
* Functional annotation and naming guidelines

For anyone interested in annotating a genome - and more and more people are these days with the decrease in sequencing costs - this is a must read.

Saturday, April 9, 2011

Hmm - How did I miss this paper discussing RFAM, Wikipedia & community annotation #cool

Edits for Wikipedia articles on RNA families. The cumulative number of edits since 1st January 2007 for the 733 Wikipedia articles that are associated with Rfam entries is shown in black. The total number of edits that were reverted or labeled as vandalism is shown in red. To mid-2010, there were just 106 of these. However, some reverted edits may have been well-intentioned but were deemed inappropriate for Wikipedia. From http://nar.oxfordjournals.org/content/39/suppl_1/D141.long
Very interesting discussion in this paper on Rfam about community annotation: Rfam: Wikipedia, clans and the “decimal” release. In the paper the authors (inlcuding Alex Bateman, Sean Eddy, Paul Gardner and others) discuss the use of Wikipedia for Community Annotation of biological databases. They report:
Given our positive experiences, we can highly recommend other curation efforts turning to Wikipedia for their annotation
I am not sure how I missed this paper when it came out recently.  But it is definitely worth a look.  The last line hints at future developments
We look forward to working with the wider community to develop these new tools and techniques.
It seems that they have bought into the Wikipedia based annotation system as having enormous potential.  I generally agree though I am not sure how this is best done.