| More docs on the ARB website. See also index of helppages. Last update on 27. Jun 2017 .

Main topics:

- ARB: a Short Introduction
- Glossary

Related topics:

- Strength of base pairings

# Probe match (Expert)

- OCCURRENCE
- DESCRIPTION
- NOTES
- EXAMPLES
- WARNINGS
- BUGS

## OCCURRENCE

### ARB_NT/Probes/Match Probes/EXPERT

## DESCRIPTION

### See ´Strength of base pairings´ for upper area.

### Define how many N-matches are accepted:

'Accepted N-matches' defines the amount of N-matches that are accepted wothout causing a mismatch.
'N-match limit' defines an upper limit for N-matches. Whenever that limit is reached inside one probe, all N-matches count as mismatches.

### Define max. results:

The number of hits is limited to 1 million by default.
This is just there to protect you from waiting several hours for match results, just because your settings were too lax.
Changing it to 0 disables the limitation.

## NOTES

### An N-Match is caused either by Ns in the matched probe or by Ns in the hit target region.

## EXAMPLES

### None

## WARNINGS

### Specifying high values for N-matches and then matching a probe containing many Ns, may keep your machine busy for days. Use with care.

## BUGS

### No bugs known