Structure of 462733. Protein Kinase A Inhibitor 5-24; H-TTYADFIASGRTGRRNAIHD; PKA Inhibitor IV; L-Threonyl-L-threonyl-L-tyrosyl-L-alanyl-L-α-aspartyl-L-phenylalanyl-L-isoleucyl-L-alanyl-L-serylglycyl-L-arginyl-L-threonylglycyl-L-arginyl-L-arginyl-L-asparaginyl-L-alanyl-L-isoleucyl-L-histidyl-L-aspartic Acid; H-Thr-Thr-Tyr-Ala-Asp-Phe-Ile-Ala-Ser-Gly-Arg-Thr-Gly-Arg-Arg-Asn-Ala-Ile-His-Asp-OH