RESIDUE B4F 78 CONECT O1 1 C1 CONECT C1 3 O1 N1 N2 CONECT N1 3 C1 C3 H1 CONECT N2 3 C1 C2 H2 CONECT C2 4 N2 C3 C5 H3 CONECT C3 4 N1 C2 C4 H4 CONECT C4 4 C3 S1 H5 H6 CONECT S1 2 C4 C5 CONECT C5 4 C2 S1 C6 H7 CONECT C6 4 C5 C7 H8 H9 CONECT C7 4 C6 C8 H10 H11 CONECT C8 4 C7 C9 H12 H13 CONECT C9 4 C8 C10 H14 H15 CONECT C10 3 C9 O2 N3 CONECT O2 1 C10 CONECT N3 3 C10 C11 H16 CONECT C11 4 N3 C12 H17 H18 CONECT C12 4 C11 N4 H19 H20 CONECT N4 3 C12 C13 H21 CONECT C13 3 N4 O3 C14 CONECT O3 1 C13 CONECT C14 3 C13 C15 C16 CONECT C15 3 C14 C19 H22 CONECT C16 3 C14 C17 H23 CONECT C17 3 C16 C18 H24 CONECT C18 3 C17 C19 C21 CONECT C19 3 C15 C18 C20 CONECT C20 3 C19 O4 O5 CONECT O4 2 C20 H25 CONECT O5 1 C20 CONECT C21 3 C18 C22 C29 CONECT C22 3 C21 C23 C27 CONECT C23 3 C22 C24 H26 CONECT C24 3 C23 C25 H27 CONECT C25 3 C24 O6 C26 CONECT O6 2 C25 H28 CONECT C26 3 C25 C27 H29 CONECT C27 3 C22 C26 O7 CONECT O7 2 C27 C28 CONECT C28 3 O7 C29 C30 CONECT C29 3 C21 C28 C33 CONECT C30 3 C28 C31 H30 CONECT C31 3 C30 O8 C32 CONECT O8 1 C31 CONECT C32 3 C31 C33 H31 CONECT C33 3 C29 C32 H32 CONECT H1 1 N1 CONECT H2 1 N2 CONECT H3 1 C2 CONECT H4 1 C3 CONECT H5 1 C4 CONECT H6 1 C4 CONECT H7 1 C5 CONECT H8 1 C6 CONECT H9 1 C6 CONECT H10 1 C7 CONECT H11 1 C7 CONECT H12 1 C8 CONECT H13 1 C8 CONECT H14 1 C9 CONECT H15 1 C9 CONECT H16 1 N3 CONECT H17 1 C11 CONECT H18 1 C11 CONECT H19 1 C12 CONECT H20 1 C12 CONECT H21 1 N4 CONECT H22 1 C15 CONECT H23 1 C16 CONECT H24 1 C17 CONECT H25 1 O4 CONECT H26 1 C23 CONECT H27 1 C24 CONECT H28 1 O6 CONECT H29 1 C26 CONECT H30 1 C30 CONECT H31 1 C32 CONECT H32 1 C33 END HET B4F 78 HETNAM B4F biotin-4-fluorescein FORMUL B4F C33 H32 N4 O8 S1