The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Ribosomal RNA Synthesis and Processing in a Particulate Site in the HeLa Cell Nucleus
Abstract
A particulate fraction has been isolated from detergent-prepared HeLa cell nuclei. The fraction consists largely of organelles that resemble the nucleoli of intact cells. The 45 S RNA that is precursor to 28 S and 18 S ribosomal RNA is associated with the fraction. The 32 S RNA that is labeled after the 45 S RNA and is the apparent precursor to 28 S RNA is also associated with the fraction. The nucleoplasm contains 28 S RNA that behaves as an intermediate between the 32 S nucleolar RNA and the 28 S cytoplasmic RNA.
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
Amino acid metabolism in Mammalian cell cultures
Eagle, H. (1959) · Science · doi:10.1126/science.130.3373.432 · Cited by 4,011
Cited by
Edmonds, M., Vaughan, M. H., & Nakazato, H. (1971) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.68.6.1336 · Cited by 510
Analytical studies on nuclear ribonucleic acid using polyacrylamide gel electrophoresis
Dingman, C. W., & Peacock, A. C. (1968) · Biochemistry · doi:10.1021/bi00842a022 · Cited by 278
Metadata
- Authors
- Penman, S., Smith, I., & Holtzman, E.
- Venue
- Science
- Published
- 1966-11-11
- Volume
- 154
- Issue
- 3750
- Pages
- 786-789
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2089918024
- Cited by
- 245
- References
- 1
- FWCI
- 20.71
- Type
- journal article
- Language
- en
- Open access
- closed
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: Ribosomal RNA Synthesis and Processing in a Particulate Site in the HeLa Cell Nucleus. https://app.cochat.ai/papers/10.1126/science.154.3750.786
- The paper
- Penman, S., Smith, I., & Holtzman, E. (1966). Ribosomal RNA Synthesis and Processing in a Particulate Site in the HeLa Cell Nucleus. Science. https://doi.org/10.1126/science.154.3750.786
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.