This server takes a set of unaligned sequences in FASTA format, then builds a multiple sequence alignment in CLUSTAL, PIR, or PO format. If you'd also like to see a visualization of your alignment in PO-MSA representation, use the POAVIZ Online server instead. Scoring Matrix: Blosum80 Input Sequence Format: FASTA Output Alignment Format: CLUSTAL PIR PO Input: Enter the input data in text format: Or click here to Upload Input Data. Then enter the name of the uploaded file: Uploaded Filename: Alignment Options: Interpret all residues as amino acids: Interpret all residues as nucleotides: POA assumes residues in upper case are amino acids, and residues in lower case are nucleotides. Show Only Sequences with Indices: (comma delimited list, i.e. 0,1,2,4,6) Exclude Sequences with Indices: (comma delimited list, i.e. 0,1,2,4,6) POA will filter the MSA output to include or exclude the indicated sequences. Perform Heaviest Bundling: POA will use the heaviest bundling algorithm to find one or more consensus sequences. Threshold Value for Heaviest Bundling: The percent identity threshold for assigning a sequence to a given consensus sequence. Show Only Consensus Sequences in the Multiple Sequence Alignment: Fuse Aligned Nodes with the Same Residue Label: While building up the PO-MSA. Data generated by POAVIZ and POA Online are deleted from the server each day at 3:00am Pacific Time.