>4ht2A (A:) observed residues (from ATOM records)
kwtyfgpdgenswskkypscggllqspidlhsdilqydasltplefqgynlsankqfllt
nnghsvklnlpsdmhiqglqsrysatqlhlhwgnpndphgsehtvsgqhfaaelhivhyn
sdlypdastasnkseglavlavliemgsfnpsydkifshlqhvkykgqeafvpgfnieel
lpertaeyyryrgslttppcnptvlwtvfrnpvqisqeqllaletalycthmddpsprem
innfrqvqkfderlvytsfsq