>1rk4B (B:) SEQRES residues
gsmaeeqpqvelfvkagsdgakigncpfsqrlfmvlwlkgvtfnvttvdtkrrtetvqkl
cpggqlpfllygtevhtdtnkieefleavlcpprypklaalnpesntagldifakfsayi
knsnpalndnlekgllkalkvldnyltsplpeevdetsaedegvsqrkfldgneltladc
nllpklhivqvvckkyrgftipeafrgvhrylsnayareefastcpddeeielayeqvak
alk