What does NS:i:1 means in the .sam format files?

[Gangcai]

Hi everyone,
I have the .sam file from tophat, and the last optional fields is NS:i:1. I have checked the sam manual, but cannot find NS Tag

(also for XS (XS:A:-), but can be found in cufflinks manual: http://cufflinks.cbcb.umd.edu/manual.html).

HWI-EAS244_1_1_61_293_716_0_1_6480169;1 19 chr1 1231272 255 47M76N28M = 1231188 0 ACTTCTTTTCCACGTATTTGTCCTTGATCCAGGCCTCCTTGTCCTGCCGGGAGCTGCTGGCTGTGGGTTTCCTGC P\MMY]LR\`a]a``^[FWa`]a[aa\^`a`a^\``X`X```]ZZa\V\aaaaaaa__aa_ababbabbbbaab` NM:i:1 XS:A:- NS:i:0

[jgoecks]

Tophat Accepted Hits File Format Question

Hi everyone,
I have the .sam file from tophat, and the last optional fields is NS:i:1. I have checked the sam manual, but cannot find NS Tag

Bump. Anyone know what this tag denotes?

Thanks,
J.

[Cole Trapnell]

This is a non-standard SAM tag that will be deprecated in the next release of TopHat.