NsiI
ATGCA▾T3′ overhang (4)
NsiI is a 6 bp-recognition restriction enzyme. It runs best in rNEBuffer 3.1 at 37°C.
NEB buffer activity
| Buffer | % Activity |
|---|---|
| rNEBuffer 1.1 | 10% |
| rNEBuffer 2.1 | 75% |
| rNEBuffer 3.1best | 100% |
| rCutSmart | 25% |
- Incubation
- 37°C
- Heat inactivation
- 80°C, 20 min
- Star activity
- None
- Methylation blocked
- None
ATGCAT.
Find NsiI sites in your own sequence
Paste a sequence below and this scans it for every NsiI recognition site — the same engine behind the full Restriction Sites tool, scoped to just this one enzyme.
Frequently asked questions
What does NsiI recognize?
NsiI recognizes the 6 bp sequence ATGCAT (5′→3′), cutting the top strand between position 5 and 6 within the site to leave a 3′ overhang of 4 bases.
What buffer should I use for NsiI?
rNEBuffer 3.1 gives the highest activity (incubate at 37°C).
Does NsiI have star activity?
No documented star activity under standard reaction conditions.
Is NsiI blocked by DNA methylation?
Not blocked by Dam, Dcm, or CpG methylation.
Can I heat-inactivate NsiI?
Yes — 80°C for 20 minutes.