>1gctA (A:) observed residues (from ATOM records)
cgvpaiqpvlsivngeeavpgswpwqvslqdktgfhfcggslinenwvvtaahcgvttsd
vvvagefdqgsssekiqklkiakvfknskynsltinnditllklstaasfsqtvsavclp
sasddfaagttcvttgwgltrytpdrlqqaslpllsntnckkywgtkikdamicagasgv
sscmgdsggplvckkngawtlvgivswgsstcststpgvyarvtalvnwvqqtlaan