SWISS::FTs represents the FT (feature) lines within an
SWISS-PROT + TrEMBL entry as specified in the user manual
http://www.expasy.org/sprot/userman.html .
- "list"
- An array of arrays. Each element is an array containing: a feature key,
from position, to position, description, qualifier, FTId and an evidence
tag. Examples: (>=2019.11 format:) [' MOD_RES', 3, 32, 'Phosphoserine',
'By similarity', 'PRO_0000089360', 'Q9ULC5-3', '
{ECO:0000244|PubMed:18691976}'] (old format with old EBI-style ev:)
['CHAIN', 25, 126, 'Alpha chain', 'By similarity', '/FTId=PRO_0000023008',
undef, '{EC1}']