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Amino acid sequence of a prothoracicotropic hormone of the silkworm Bombyx mori
Open accessAbstract
We have determined the complete amino acid sequence of 4K-PTTH-II, one of three forms of the M r 4400 prothoracicotropic hormone of the silkworm Bombyx mori , active to brainless pupae of Samia cynthia ricini . Like vertebrate insulin, it consists of two nonidentical peptide chains (A and B chains). The A chain consists of 20 amino acid residues. The B chain is a mixture of four microheterogeneous peptides, two of which consist of 28 residues, and the other two, of 26 residues. 4K-PTTH-II has considerable sequence homology (40%) with human insulin, and it resembles porcine relaxin both in the carboxyl-terminal cysteine residue of the A chain and in the amino-terminal pyroglutamic acid residue of the B chain. The identical distribution of the six cysteine residues also indicates that 4K-PTTH-II belongs to the insulin family.
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Citations
Cited by
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Woodhead, A. P., Stay, B., Seidel, S. L., Khan, M. A., & Tobe, S. S. (1989) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.86.15.5997 · Cited by 419
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Metadata
- Authors
- Nagasawa, H., Kataoka, H., Isogai, A., Tamura, S., Suzuki, A., Mizoguchi, A., Fujiwara, Y., Suzuki, A., Takahashi, S. Y., & Ishizaki, H.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1986-08
- Volume
- 83
- Issue
- 16
- Pages
- 5840-5843
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2093490070
- Cited by
- 231
- References
- 0
- FWCI
- 5.45
- Type
- journal article
- Language
- en
- Open access
- green
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- Nagasawa, H., Kataoka, H., Isogai, A., Tamura, S., Suzuki, A., Mizoguchi, A., Fujiwara, Y., Suzuki, A., Takahashi, S. Y., & Ishizaki, H. (1986). Amino acid sequence of a prothoracicotropic hormone of the silkworm Bombyx mori. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.83.16.5840
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