A Kazal-Type Serine Protease Inhibitor from the Defense Gland Secretion of the Subterranean Termite Coptotermes formosanus Shiraki
Fig 6
NMR solution structure of TFP4.
Two ribbon views of TFP4 are shown to illustrate the Kazal-type consensus loop. The amino acids are numbered based on the TFP4 sequence in Fig 1B. The asterisks indicate the active site amino acid, Met10. The secondary structure is colored from the N- to C-terminus, blue to red. The disulfide bonds are labeled with Roman numerals to indicate the cystine connectivity. Note that partial transparency of the second β-sheet is used in the structure on the right to show the aft III-VI disulfide bond.