MEGA multiple alignment format

Description

See http://evolgen.biol.metro-u.ac.jp/MEGA/manual/DataFormat.html

Example

#mega
TITLE: Written by EMBOSS 31/12/05

#HSFAU                ttcctctttctcgactccatcttcgcggtagctgggaccgccgttcagtc
#HSFAU1               ctaccattttccctctcgattctatatgtacactcgggacaagttctcct

#HSFAU                gttcagtcaaaaaaaaaa
#HSFAU1               tcaggtaagaatggggccttggctggatccgaagggcttgtagcaggttg

#HSFAU                
#HSFAU1               gctgcggggtcagaaggcgcggggggaaccgaagaacggggcctgctccg

#HSFAU                
#HSFAU1               gaggtgtgcttctcgg