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

Main topics:

- ARB: a Short Introduction
- Glossary
- What is an Alignment ?
- Merge main window and workflow

Related topics:

- Alignment Administration

# Check and modify the consistency of two alignments

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

## OCCURRENCE

### ARB_MERGE/Check alignments

## DESCRIPTION

### Checks the types of data stored within 'alignments' (see ´Glossary´) for consistency to prevent merging of non homologous data such as 16S and 23S rRNA or protein and DNA sequence data.

### Press the 'Check Alignments' button to display the 'MERGE ALIGNMENTS' window.

### The 'Check' button checks all alignments.

## NOTES

### If any alignment exists only in the source database (DB) then the alignment will be created in the target DB (but no sequences will be copied).

### If the alignment exists in both databases then the sequence_type will be compared.

### If any inconsistencies are detected the user has to resolve them by pressing the 'MODIFY' button to display the 'ALIGNMENT CONTROL' window. This tool allows to modify the alignments.

## EXAMPLES

### None

## WARNINGS

### None

## BUGS

### No bugs known