Terminology Service for NFDI4Health
N50
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http://purl.obolibrary.org/obo/OBI_0001940
the weighted median item size or N50 is a weighted median of the lengths of items, equal to the length of the longest item i such that the sum of the lengths of items greater than or equal in length to i is greater than or equal to half the length of all of the items. With regard to assemblies the items are typically contigs or scaffolds. It therefore denotes the ability of the software to create contigs and provides information about the resulting sequence assembly
Term info
Label
N50
alternative term
weighted median item size
definition source
adapted from: "http://genome.cshlp.org/content/21/12/2224.full?sid=74019122-f944-4ccc-bffe-d16fdd0e7d6c" (from table 7) and from "http://www.nature.com/nrg/journal/v14/n3/full/nrg3367.html"
example of usage
Gigascience. 2012 Dec 27;1(1):18. doi: 10.1186/2047-217X-1-18. PMID: 23587118. "Here, the contig and scaffold N50 of the YH genome were ~20.9 kbp and ~22 Mbp"
has curation status
http://purl.obolibrary.org/obo/IAO_0000125
term editor
Alejandra Gonzalez-Beltran, Philippe Rocca-Serra
Term relations
Subclass of:
- scalar measurement datum
- is about some assembly
- is_specified_output_of some sequence assembly process
- has measurement unit label some measurement unit label
Related from: