>4r3vA (A:) observed residues (from ATOM records) qrlydngpltgdnnyvlqgskwnkttlkyyiynssshlttterenairsafalwsdkstl sfiqvynpnqadikikwekgnhgdgypfdgntgilahafypppaggnyaghlhfdgdenw singsgidlitvaahaighllgiehsnvssalmypyytgikrqldnddclavwdlygyp