USEARCH v12

UPARSE annotations


See also: uparse_ref , cluster_otus .

Field Description
n= k ; Number of segments in the model. If n>1, the model is chimeric. If n=?, the model is too far diverged from the query sequence for parsimony to be reliable. The divergence is measured using the divqm field (see below). The -uparse_annot_maxdivqm option specifies the maximum allowed divergence; default is 1.0.
diffsqm= d ; Number of differences between the query sequence and model. A difference is a substitution or indel (one gap symbol). If diffsqm=0, this indicates the model is identical to the query. If diffsqm>0, this is interpreted as due to point errors (sequencing error or PCR copying mistakes).
dqt= d; Divergence between query and top hit in the database as a percentage, calculated as 100% - PctId(Query, TopHit). Sequence identity is calculated from a global alignment.
dqm= d ; Divergence between query and model, as a percentage, calculated as 100% - PctId(Query, Model).
top= label ; Label of database top hit.
parents= string ; Included only if the model is chimeric. The string specifies the segments used to construct the model. Each segment is specified as label ( from - to ), where from and to are the 1-based coordinates.