6.7 years ago by
University Park, USA
blastn -help then look for the field called
*** Formatting options
alignment view options:
0 = pairwise,
1 = query-anchored showing identities,
2 = query-anchored no identities,
3 = flat query-anchored, show identities,
4 = flat query-anchored, no identities,
5 = XML Blast output,
6 = tabular,
7 = tabular with comment lines,
8 = Text ASN.1,
9 = Binary ASN.1,
10 = Comma-separated values,
11 = BLAST archive format (ASN.1)
Options 6, 7, and 10 can be additionally configured to produce
a custom format specified by space delimited format specifiers.
The supported format specifiers are:
qseqid means Query Seq-id
qgi means Query GI
qacc means Query accesion
qaccver means Query accesion.version
qlen means Query sequence length
sseqid means Subject Seq-id
sallseqid means All subject Seq-id(s), separated by a ';'
sgi means Subject GI
sallgi means All subject GIs
sacc means Subject accession
saccver means Subject accession.version
sallacc means All subject accessions
slen means Subject sequence length
qstart means Start of alignment in query
qend means End of alignment in query
sstart means Start of alignment in subject
send means End of alignment in subject
qseq means Aligned part of query sequence
sseq means Aligned part of subject sequence
evalue means Expect value
bitscore means Bit score
score means Raw score
length means Alignment length
pident means Percentage of identical matches
nident means Number of identical matches
mismatch means Number of mismatches
positive means Number of positive-scoring matches
gapopen means Number of gap openings
gaps means Total number of gaps
ppos means Percentage of positive-scoring matches
frames means Query and subject frames separated by a '/'
qframe means Query frame
sframe means Subject frame
btop means Blast traceback operations (BTOP)
staxids means Subject Taxonomy ID(s), separated by a ';'
sscinames means Subject Scientific Name(s), separated by a ';'
scomnames means Subject Common Name(s), separated by a ';'
sblastnames means Subject Blast Name(s), separated by a ';'
(in alphabetical order)
sskingdoms means Subject Super Kingdom(s), separated by a ';'
(in alphabetical order)
stitle means Subject Title
salltitles means All Subject Title(s), separated by a '<>'
sstrand means Subject Strand
qcovs means Query Coverage Per Subject
qcovhsp means Query Coverage Per HSP