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Isopeptide linkage between nonhistone and histone 2A polypeptides of chromosomal conjugate-protein A24.
Open accessAbstract
Chromosomal protein A24 has a unique structure inasmuch as it contains histone 2A and a nonhistone polypeptide the sequence of which has been partially determined. Comparative analysis of the ninhydrin-insensitive amino-terminal tryptic peptides of protein A24 and histone 2A and a quantitative analysis of their carboxyl-terminal amino acid indicated that protein A24 has two amino termini and one carboxyl terminus. The amino acid sequence analysis of tryptic peptide 17' of protein A24: (see text) showed it contains tryptic peptide 17 of histone 2A, Lys-Thr-Glu-Ser-His-His-Lys. Lysine 119, the amino terminus of this peptide, which is derived from the histone 2A portion of protein A24, is linked by an isopeptide bond to the carboxyl group of a glycine residue. Accordingly, the branched structure of protein A24 proposed is: (see text).
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Weintraub, H., & Groudine, M. (1976) · Science · doi:10.1126/science.948749 · Cited by 1,809
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Metadata
- Authors
- Goldknopf, I. L., & Busch, H.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1977-03
- Volume
- 74
- Issue
- 3
- Pages
- 864-868
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2065362756
- Cited by
- 449
- References
- 1
- FWCI
- 7.58
- Type
- journal article
- Language
- en
- Open access
- green
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- Goldknopf, I. L., & Busch, H. (1977). Isopeptide linkage between nonhistone and histone 2A polypeptides of chromosomal conjugate-protein A24. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.74.3.864
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