>1g3nB (B:) observed residues (from ATOM records)
gnelasaaargdleqltsllqnnvnvnaqngfgrtalqvmklgnpeiarrlllrganpdl
kdrtgfavihdaaragfldtlqtllefqadvniednegnlplhlaakeghlrvveflvkh
tasnvghrnhkgdtacdlarlygrnevvslmqang