The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
The complete amino acid sequence of the Ca2+-dependent modulator protein (calmodulin) of bovine brain.
Open accessAbstract
We present the data required to establish the complete amino acid sequence of bovine brain modulator protein, the multifunctional calcium-dependent regulatory protein. Bovine brain modulator protein contains 148 amino acid residues and has a molecular mass of 16,680 daltons. The protein commences with an acetylated alanyl residue in accord with the previous report that its NH2 terminus was blocked. The single residues of histidine and trimethyllysine occur at positions 107 and 115, respectively, in a region of the linear sequence implicated by other studies as important for calcium-dependent modulator protein-enzyme interactions. The sequence of bovine brain modulator protein demonstrated here is closely related to those of muscle troponin Cs, as originally suggested from considerations of the similarities in calcium binding and functional and physicochemical properties of these proteins (Watterson, D.M., Harrelson, W.G., Jr., Keller, P.M., Sharief, F., and Vanaman, T.C. (1976) J. Biol. chem. 251, 4501-4513). The linear amino acid sequence of bovine brain modulator protein is composed of four internally homologous sequences or domains, each of which contains the appropriate amino acids arranged so as to form a helix-loop-helix, calcium-binding structure. The high level of internal homology of bovine brain modulator protein and its relationship to the other members of the calcium-binding protein superfamily provide convincing evidence that 1) it arose early in the evolution of these related proteins and 2) it was formed by two successive tandem duplications of a gene encoding a small, single domain ancestral precursor. Comparison with the nearly complete sequences of the bovine uterus and rat testis modulator proteins reported by other laboratories indicates that this ubiquitous calcium-dependent regulatory protein does not occur in tissue-specific forms, commensurate with the proposed function of modulator protein as a mediator of calcium-second messenger function in eukaryotic cells.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Electrophoretic Mobilities of Peptides on Paper and their Use in the Determination of Amide Groups
OFFORD, R. E. (1966) · Nature · doi:10.1038/211591a0 · Cited by 1,006
Greengard, P. (1978) · Science · doi:10.1126/science.22932 · Cited by 965
Hirs, C. H. W. (1967) · Methods in Enzymology · doi:10.1016/s0076-6879(67)11021-5 · Cited by 865
Cyclic 3′,5′-nucleotide phosphodiesterase
Cheung, W. Y. (1970) · Biochemical and Biophysical Research Communications · doi:10.1016/0006-291x(70)90747-3 · Cited by 823
Calcium-binding proteins and calcium function
Wasserman, R. H. (1977) · Cited by 736
Cohen, P., Burchell, A., Foulkes, J. G., Cohen, P. T. W., Vanaman, T. C., & Nairin, A. C. (1978) · FEBS Letters · doi:10.1016/0014-5793(78)80772-8 · Cited by 618
Self-citationBrostrom, C. O., Huang, Y. C., Breckenridge, B. M., & Wolff, D. J. (1975) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.72.1.64 · Cited by 545
Watterson, D. M., Harrelson, W. G., Keller, P. M., Sharief, F., & Vanaman, T. C. (1976) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(17)33231-3 · Cited by 515
Self-citationModulator protein as a component of the myosin light chain kinase from chicken gizzard
Dabrowska, R., Sherry, J. M. F., Aromatorio, D. K., & Hartshorne, D. J. (1978) · Biochemistry · doi:10.1021/bi00595a010 · Cited by 484
Klee, C. B. (1977) · Biochemistry · doi:10.1021/bi00624a033 · Cited by 472
Cited by
The role of protein phosphorylation in neural and hormonal control of cellular activity
Cohen, P. (1982) · Nature · doi:10.1038/296613a0 · Cited by 1,123
Complete amino acid sequence of human brain calmodulin
Sasagawa, T., Ericsson, L. H., Walsh, K. A., Schreiber, W. E., Fischer, E. H., & Titani, K. (1982) · Biochemistry · doi:10.1021/bi00539a041 · Cited by 89
Metadata
- Authors
- Watterson, D. M., Sharief, F., & Vanaman, T. C.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 1980-02
- Volume
- 255
- Issue
- 3
- Pages
- 962-975
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W1605459033
- Cited by
- 586
- References
- 33
- FWCI
- 27.19
- Type
- journal article
- Language
- en
- Open access
- hybrid
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: The complete amino acid sequence of the Ca2+-dependent modulator protein (calmodulin) of bovine brain. https://app.cochat.ai/papers/10.1016/s0021-9258(19)86127-6
- The paper
- Watterson, D. M., Sharief, F., & Vanaman, T. C. (1980). The complete amino acid sequence of the Ca2+-dependent modulator protein (calmodulin) of bovine brain. Journal of Biological Chemistry. https://doi.org/10.1016/s0021-9258(19)86127-6
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.