The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Molecular Orientation and Two-Component Nature of the Crystalline Fraction of Spider Dragline Silk
Abstract
The molecular origin of the exceptional mechanical properties of spider silk is unclear. This paper presents solid-state 2 H nuclear magnetic resonance data from unoriented, oriented, and supercontracted fibers, indicating that the crystalline fraction of dragline silk consists of two types of alanine-rich regions, one that is highly oriented and one that is poorly oriented and less densely packed. A new model for the molecular-level structure of individual silk molecules and their arrangement in the fibers is proposed. These data suggest that it will be necessary to control the secondary structure of individual polymer molecules in order to obtain optimum properties in bio-inspired polymers.
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
Quadrupolar echo deuteron magnetic resonance spectroscopy in ordered hydrocarbon chains
Davis, J. H., Jeffrey, K. R., Bloom, M., Valic, M. I., & Higgs, T. P. (1976) · Chemical Physics Letters · doi:10.1016/0009-2614(76)80392-2 · Cited by 1,330
An Adaptive Nonlinear Least-Squares Algorithm
Dennis, J. E., Gay, D. M., & Walsh, R. E. (1981) · ACM Transactions on Mathematical Software · doi:10.1145/355958.355965 · Cited by 930
Structure of a protein superfiber: spider dragline silk.
Xu, M., & Lewis, R. V. (1990) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.87.18.7120 · Cited by 671
The structure and properties of spider silk
Gosline, J. M., DeMont, M. E., & Denny, M. W. (1986) · Endeavour · doi:10.1016/0160-9327(86)90049-9 · Cited by 611
Algorithm 573: NL2SOL—An Adaptive Nonlinear Least-Squares Algorithm [E4]
Dennis, J. E., Gay, D. M., & Welsch, R. E. (1981) · ACM Transactions on Mathematical Software · doi:10.1145/355958.355966 · Cited by 405
Mechanical and thermal properties of dragline silk from the spider Nephila clavipes
Cunniff, P. M., Fossey, S. A., Auerbach, M. A., Song, J. W., Kaplan, D. L., Adams, W. W., Eby, R. K., Mahoney, D., & Vezie, D. L. (1994) · Polymers for Advanced Technologies · doi:10.1002/pat.1994.220050801 · Cited by 297
Comparative studies of fibroins
Warwicker, J. O. (1960) · Journal of Molecular Biology · doi:10.1016/s0022-2836(60)80046-0 · Cited by 272
Bloom, M., Davis, J. H., & Valič, M. I. (1980) · Canadian Journal of Physics · doi:10.1139/p80-196 · Cited by 230
Molecular mechanism of spider silk elasticity
Dong, Z., Lewis, R. V., & Middaugh, C. R. (1991) · Archives of Biochemistry and Biophysics · doi:10.1016/0003-9861(91)90262-h · Cited by 92
Cited by
Elastin: molecular description and function
Debelle, L., & Tamburro, A. M. (1999) · The International Journal of Biochemistry & Cell Biology · doi:10.1016/s1357-2725(98)00098-3 · Cited by 545
Decoding the secrets of spider silk
Eisoldt, L., Smith, A., & Scheibel, T. (2011) · Materials Today · doi:10.1016/s1369-7021(11)70057-8 · Cited by 342
Metadata
- Authors
- Simmons, A. H., Michal, C. A., & Jelinski, L. W.
- Venue
- Science
- Published
- 1996-01-05
- Volume
- 271
- Issue
- 5245
- Pages
- 84-87
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2037533379
- Cited by
- 632
- References
- 9
- FWCI
- 26.15
- 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: Molecular Orientation and Two-Component Nature of the Crystalline Fraction of Spider Dragline Silk. https://app.cochat.ai/papers/10.1126/science.271.5245.84
- The paper
- Simmons, A. H., Michal, C. A., & Jelinski, L. W. (1996). Molecular Orientation and Two-Component Nature of the Crystalline Fraction of Spider Dragline Silk. Science. https://doi.org/10.1126/science.271.5245.84
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.
