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Helix-coil Transition in Closed Circular DNA

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Paper breakdownThe authors' claims, conditions and measurements, as JSON Signed receiptProof this review has not been altered
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V.F. Morozov, Shura Hayryan, E.Sh. Mamasakhlisov, A.V. Grigoryan, A.V. Badasyan, Chin-Kun Hu

Biomolecules · Submitted 15 Jan 2004

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim The formula provides a simple method to calculate the melting curve for the ccDNA from the experimental melting curve of the linear DNA with the same nucleotide sequence.

how it is stated · asserted 1.00 read the record →

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arXiv IDq-bio/0401021 (version 1)
Pith ID6YPBQS2E, Pith's permanent record of this paper and its review
CitationA.V. Badasyan, A.V. Grigoryan, Chin-Kun Hu, E.Sh. Mamasakhlisov, Shura Hayryan, V.F. Morozov. "Helix-coil Transition in Closed Circular DNA." arXiv:q-bio/0401021 (2004). https://pith.science/paper/6YPBQS2E
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The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,251 input tokens.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.18 · human participants 0.02 · controlled comparison 0.26 · randomized assignment 0.01 · states quantitative result 0.06 · compares with prior results 0.58 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; .

A simplified model for the closed circular DNA (ccDNA) is proposed to describe some specific features of the helix-coil transition in such molecule. The Hamiltonian of ccDNA is related to the one introduced earlier for the linear DNA. The basic assumption is that the reduced energy of the hydrogen bond is not constant through the transition process but depends effectively on the fraction of already broken bonds. A transformation formula is obtained which relates the temperature of ccDNA at a given degree of helicity during the transition to the temperature of the corresponding linear chain at the same degree of helicity. The formula provides a simple method to calculate the melting curve for the ccDNA from the experimental melting curve of the linear DNA with the same nucleotide sequence.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 A simplified model for the closed circular DNA (ccDNA) is proposed to describe some specific features of the helix-coil transition in such molecule. contribution 0.96 0.89 0.09 asserted 0.93
s1 The Hamiltonian of ccDNA is related to the one introduced earlier for the linear DNA. method 0.70 0.46 0.04 asserted 1.00
s2 The basic assumption is that the reduced energy of the hydrogen bond is not constant through the transition process but depends effectively on the fraction of already broken bonds. method 0.88 0.49 0.11 asserted 0.99
s3 A transformation formula is obtained which relates the temperature of ccDNA at a given degree of helicity during the transition to the temperature of the corresponding linear chain at the same degree of helicity. result 0.70 0.92 0.39 asserted 1.00
s4 The formula provides a simple method to calculate the melting curve for the ccDNA from the experimental melting curve of the linear DNA with the same nucleotide sequence. contribution 0.36 0.80 0.47 asserted 1.00

What kind of paper the classifier reports this is: theoretical result 0.93 · evidence from proof or derivation 1.00.

What was examined, and what was not

sources read
  • arXiv listing abstract v1
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
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  • P abstract
not run
  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

A simplified model for the closed circular DNA (ccDNA) is proposed to describe some specific features of the helix-coil transition in such molecule. The Hamiltonian of ccDNA is related to the one introduced earlier for the linear DNA. The basic assumption is that the reduced energy of the hydrogen bond is not constant through the transition process but depends effectively on the fraction of already broken bonds. A transformation formula is obtained which relates the temperature of ccDNA at a given degree of helicity during the transition to the temperature of the corresponding linear chain at the same degree of helicity. The formula provides a simple method to calculate the melting curve for the ccDNA from the experimental melting curve of the linear DNA with the same nucleotide sequence.

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