Fasta header
Amino The Multiple Sequence Alignment (MSA) of a gene family can be downloaded as a fasta file.
The default MSA file contains amino acid sequences of all members in a the gene family (leaf nodes of the gene tree).. When you prune the tree (remove genes of certain organisms), then download MSA, the MSA will exclude those pruned genes. Read more about the MSAIf a user prunes the gene tree, the MSA only includes sequences of the remaining genes.