The DOI matches its Crossref record.
The labelling of proteins to high specific radioactivities by conjugation to a 125I-containing acylating agent. Application to the radioimmunoassay
Open accessAbstract
1. A new method is described for labelling proteins to high specific radioactivities with 125I. The protein is treated with a 125I-labelled acylating agent, iodinated 3-(4-hydroxyphenyl)propionic acid N-hydroxysuccinimide ester, which reacts with free amino groups in the protein molecule to attach the 125I-labelled groups by amide bonds. 2. Three protein hormones have been labelled by this method, human growth hormone, human thyroid-stimulating hormone and human luteinizing hormone. Specific radioactivities of up to 170, 120 and 55μCi/μg respectively have been obtained for these hormones. 3. The immunoreactivity of these labelled hormones has been investigated by using a radioimmunoassay system specific for each hormone. These preparations have also been compared with and found to be equal or superior to labelled hormones prepared by chemical substitution of 125I into tyrosine residues of the proteins by using the chloramine-t-oxidation procedure. 4. With some antisera the immunoreactivity of the antigen was diminished by the introduction of a single I atom into the tyrosyl groups, whereas antigen containing a single 125I-labelled 3-(4-hydroxyphenyl)propionamide group showed the same immunoreactivity as the unmodified antigen.
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
Cited by
Serum Immunoreactive-Leptin Concentrations in Normal-Weight and Obese Humans
Considine, R. V., Sinha, M. K., Heiman, M. L., Kriauciunas, A., Stephens, T. W., Nyce, M. R., Ohannesian, J. P., Marco, C. C., McKee, L. J., Bauer, T. L., et al. (1996) · New England Journal of Medicine · doi:10.1056/nejm199602013340503 · Cited by 6,326
The role of neuropeptide Y in the antiobesity action of the obese gene product
Stephens, T. W., Basinski, M., Bristow, P. K., Bue-Valleskey, J. M., Burgett, S. G., Craft, L., Hale, J., Hoffmann, J., Hsiung, H. M., Kriauciunas, A., et al. (1995) · Nature · doi:10.1038/377530a0 · Cited by 1,498
Pitas, R. E., Boyles, J. K., Lee, S. H., Hui, D., & Weisgraber, K. H. (1987) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)47945-8 · Cited by 714
Astrocytes synthesize apolipoprotein E and metabolize apolipoprotein E-containing lipoproteins
Pitas, R. E., Boyles, J. K., Lee, S. H., Foss, D., & Mahley, R. W. (1987) · Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism · doi:10.1016/0005-2760(87)90295-5 · Cited by 693
Peles, E., Bacus, S. S., Koski, R. A., Lu, H. S., Wen, D., Ogden, S. G., Levy, R. B., & Yarden, Y. (1992) · Cell · doi:10.1016/0092-8674(92)90131-u · Cited by 524
Metadata
- Authors
- Bolton, A. E., & Hunter, W. M.
- Venue
- Biochemical Journal
- Publisher
- Portland Press Ltd.
- Published
- 1973-07-01
- Volume
- 133
- Issue
- 3
- Pages
- 529-538
- ISSN
- 0264-6021 (ISSN-L)
- OpenAlex
- W258376682
- Cited by
- 3,254
- References
- 0
- FWCI
- 36.59
- Type
- journal article
- Language
- en
- Open access
- bronze
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 labelling of proteins to high specific radioactivities by conjugation to a 125I-containing acylating agent. Application to the radioimmunoassay. https://app.cochat.ai/papers/10.1042/bj1330529
- The paper
- Bolton, A. E., & Hunter, W. M. (1973). The labelling of proteins to high specific radioactivities by conjugation to a 125I-containing acylating agent. Application to the radioimmunoassay. Biochemical Journal. https://doi.org/10.1042/bj1330529
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.
