@prefix this: . @prefix sub: . @prefix np: . @prefix rdf: . @prefix prov: . @prefix npx: . @prefix dc: . @prefix xsd: . sub:Head { this: a np:Nanopublication; np:hasAssertion sub:assertion; np:hasProvenance sub:provenance; np:hasPublicationInfo sub:pubinfo . } sub:assertion { a ; dc:description "In the hierarchical Bell model applied to alpha-helices, 3–4 parallel hydrogen bonds per turn are optimal for the protein's combined mechanical and thermodynamic stability, matching the 3.6 hydrogen bonds per turn of real alpha-helices."; dc:type "prediction"; "Notation basis: The optimum and the observed value are stated in the abstract; the objective being optimised is in the full text."; "Three to four parallel hydrogen bonds per turn is the mechanically and thermodynamically favoured number"; "b^{*} \\in \\{3, 4\\} \\quad (\\text{observed } b = 3.6 \\text{ H-bonds per turn})"; "Theodor Ackbarow et al., “Hierarchies, multiple energy barriers, and robustness govern the fracture mechanics of α-helical and β-sheet protein domains”, Proceedings of the National Academy of Sciences 104, 16410-16415 (2007), doi:10.1073/pnas.0705759104; Abstract. Scope: Alpha-helical protein domains" . } sub:provenance { a ; dc:bibliographicCitation "Theodor Ackbarow, Xuefeng Chen, Sinan Keten, Markus J. Buehler. Hierarchies, multiple energy barriers, and robustness govern the fracture mechanics of α-helical and β-sheet protein domains. Proceedings of the National Academy of Sciences 104, 16410-16415 (2007). doi:10.1073/pnas.0705759104"; dc:creator "Theodor Ackbarow, Xuefeng Chen, Sinan Keten, Markus J. Buehler"; dc:date "2007"^^xsd:gYear; dc:identifier "PMC2034213", "doi:10.1073/pnas.0705759104", "pmid:17925444"; dc:title "Hierarchies, multiple energy barriers, and robustness govern the fracture mechanics of α-helical and β-sheet protein domains" . a prov:SoftwareAgent; "delphisci buehler-protein-materials claim extractor"; prov:actedOnBehalfOf ; . a ; "Claude Fable 5.1" . sub:assertion prov:wasAttributedTo ; prov:wasDerivedFrom , sub:quote; prov:wasGeneratedBy sub:extraction . sub:extraction a prov:Activity; prov:qualifiedAssociation sub:extractionPlan; prov:used , ; prov:wasAssociatedWith . sub:extractionPlan prov:hadPlan . sub:quote a prov:Entity; "Quoted from the published abstract as returned by Europe PMC (2007-hierarchies.abstract.txt, sha256 4f052f4a8a9ddc7dfecc384493c31e0f00fcd9873ded36486b8618493fdf4e18); the full text was not read (not in Europe PMC open-access subset). Checked by build/check.py."; prov:hadPrimarySource ; prov:wasQuotedFrom ; "We exemplify our model in a study of AHs, and show that 3-4 parallel HBs per turn are favorable in light of the protein's mechanical and thermodynamical stability, in agreement with experimental findings that AHs feature 3.6 HBs per turn." . sub:sourceChecksum ; "4f052f4a8a9ddc7dfecc384493c31e0f00fcd9873ded36486b8618493fdf4e18"; "Checksum of the vendored text file inputs/2007-hierarchies.abstract.txt, not of the publisher's copy." . a prov:Entity; sub:sourceChecksum; "Abstract of Hierarchies, multiple energy barriers, and robustness govern the fracture mechanics of α-helical and β-sheet protein domains, as read"; . } sub:pubinfo { "buehler-protein-materials" . this: dc:created "2026-11-08T04:38:11.893Z"^^xsd:dateTime; dc:creator ; dc:license ; npx:hasNanopubType ; npx:introduces ; "Theodor Ackbarow et al. 2007 claim: Three to four parallel hydrogen bonds per turn is the mechanically and thermodynamically favoured number"; . sub:sig npx:hasAlgorithm "RSA"; npx:hasPublicKey "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB"; npx:hasSignature "cOD+kt5F+fIj92K3/uLPBb76PGCD3fqo5sy05xiQ7QB5I69Buk+cgvt6IIUKjYmx72PPHhsvw5bV7h9dR1i6RNjXa9acfqQjnNWS6ITba49YEpnbSzf9890X0GP2q5S9l+8Hur5t3iSoJvyccrx+ENRLA9aettNyZBWy+zrkaWdngf3mFryiFL1i7t7r/tD7eAZfDx9B+za0YHcPuSzFby/SnKPSLowmHXLIFx7D7qlqlzr+SadqAO/Lx+zS5OnENQLgF7SYuVwjNDAo+qg7JflFmzAnTdsPA1K3JFRCTIFt+usWURvDN0TjcAtnvBOH0eC0IqAh0+FjfYF3XHJ0sQ=="; npx:hasSignatureTarget this:; npx:signedBy . }