The DOI matches its Crossref record.
Fractions of lipopolysaccharide from Escherichia coli O111:B4 prepared by two extraction procedures.
Open accessAbstract
Lipopolysaccharides have been extracted from Escherichia coli O111:B4 by phenol extraction and by a new method employing aqueous butanol. Both methods yield very similar lipopolysaccharide preparations. Gel filtration chromatography of either preparation yields two physically and chemically distinct lipopolysaccharide fractions. One fraction contains lipopolysaccharide molecules with long antigenic side chains. It acts like a highly asymmetric unit with an apparent weight of 1.5 times 10-6 and is not dissociated by detergents or deacylation. The second fraction has a short antigenic side chain and can be dissociated by sodium dodecyl sulfate and Triton X-100 into units of approximately 90,000. Some properties of the lipopolysaccharide fractions vary with the method of extraction.
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
Molecular Basis of Bacterial Outer Membrane Permeability Revisited
Nikaido, H. (2003) · Microbiology and Molecular Biology Reviews · doi:10.1128/mmbr.67.4.593-656.2003 · Cited by 4,316
Serology, chemistry, and genetics of O and K antigens of Escherichia coli
Orskov, I., Orskov, F., Jann, B., & Jann, K. (1977) · Bacteriological Reviews · doi:10.1128/br.41.3.667-710.1977 · Cited by 933
Binding of polymyxin B to the lipid A portion of bacterial lipopolysaccharides
Morrison, D. C., & Jacobs, D. M. (1976) · Immunochemistry · doi:10.1016/0019-2791(76)90181-6 · Cited by 819
Self-citation2 Serotyping of Escherichia coli
Ørskov, F., & Ørskov, I. (1984) · Methods in Microbiology · doi:10.1016/s0580-9517(08)70447-1 · Cited by 579
Endotoxin removal from protein solutions
Petsch, D. (2000) · Journal of Biotechnology · doi:10.1016/s0168-1656(99)00185-6 · Cited by 507
Metadata
- Authors
- Morrison, D., & Leive, L.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 1975-04
- Volume
- 250
- Issue
- 8
- Pages
- 2911-2919
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W1521121957
- Cited by
- 331
- References
- 0
- FWCI
- 12.57
- 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: Fractions of lipopolysaccharide from Escherichia coli O111:B4 prepared by two extraction procedures. https://app.cochat.ai/papers/10.1016/s0021-9258(19)41574-3
- The paper
- Morrison, D., & Leive, L. (1975). Fractions of lipopolysaccharide from Escherichia coli O111:B4 prepared by two extraction procedures. Journal of Biological Chemistry. https://doi.org/10.1016/s0021-9258(19)41574-3
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.