>1r4lA (A:) observed residues (from ATOM records)
stieeqaktfldkfnheaedlfyqsslaswnyntniteenvqnmnnagdkwsaflkeqst
laqmyplqeiqnltvklqlqalqqngssvlsedkskrlntilntmstiystgkvcnpdnp
qeclllepglneimansldynerlwaweswrsevgkqlrplyeeyvvlknemaranhyed
ygdywrgdyevngvdgydysrgqliedvehtfeeikplyehlhayvraklmnaypsyisp
igclpahllgdmwgrfwtnlysltvpfgqkpnidvtdamvdqawdaqrifkeaekffvsv
glpnmtqgfwensmltdpgnvqkavchptawdlgkgdfrilmctkvtmddfltahhemgh
iqydmayaaqpfllrnganegfheavgeimslsaatpkhlksigllspdfqedneteinf
llkqaltivgtlpftymlekwrwmvfkgeipkdqwmkkwwemkreivgvvepvphdetyc
dpaslfhvsndysfiryytrtlyqfqfqealcqaakhegplhkcdisnsteagqklfnml
rlgksepwtlalenvvgaknmnvrpllnyfeplftwlkdqnknsfvgwstdwspyad