Review




Structured Review

BioKin Ltd dynafit 4
Dynafit 4, supplied by BioKin Ltd, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/dynafit+software+program/dynafit+4+0/pmc08177486-646-9-14
Average 90 stars, based on 1 article reviews
dynafit 4 - by Bioz Stars, 2026-10
90/100 stars

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Software:

Article Title: The Kinetic Mechanism of 3′-5′ Exonucleolytic Activity of AP Endonuclease Nfo from E. coli
Article Snippet: .. In order to calculate the rate constants of conformational transitions, OriginLab 15.0 (OriginLab Corp., Northampton, MA, USA) and DynaFit 4 software (Biokin, Pullman, WA, USA) [ ] were utilized to compute the parameters of the catalytic process (kinetic constants) via the nonlinear regression method. ..

Article Title: Magnesium Ion-Driven Folding and Conformational Switching Kinetics of Tetracycline Binding Aptamer: Implications for in vivo Riboswitch Engineering.
Article Snippet: Engineering in vitro selected RNA aptamers into in vivo functional riboswitches represents a long-standing challenge in molecular biology.. The highly specific aptamer domain of the riboswitch undergoes a conformational adjustment in response to ligand sensing, which in turn exerts the regulatory function.. Besides essential factors like structural complexity and ligand binding kinetics, the active role of magnesium ions in stabilizing RNA tertiary structures and assisting in ligand binding can be a vital criterion.

Article Title: What defines a synthetic riboswitch? – Conformational dynamics of ciprofloxacin aptamers with similar binding affinities but varying regulatory potentials
Article Snippet: .. All of the traces were baseline-corrected and normalized prior to the kinetic model analysis, which was carried out with the DynaFit4 software ( ) (Biokin Ltd, Watertown, USA). ..

Article Title: Interaction Energetics and Druggability of the Protein-Protein Interaction between Kelch-like ECH-associated Protein 1 (KEAP1) and Nuclear Factor, Erythroid 2 Like 2 (Nrf2)
Article Snippet: .. The competition binding results were fitted using the numerical nonlinear regression software DynaFit 4 (BioKin Ltd.), using the competitive binding model shown below: KEAP1 · FITC − Nrf2 ⇋ K D1 FITC − Nrf2 + KEAP1 + Nrf2 34 − 100 ⇌ K D2 KEAP1 · Nrf2 34 − 100 In applying this model, the FITC-labeled probe peptide concentration, the KEAP1 concentration and K D1 values were fixed, allowing K D2 and the molar response of the complex to be variable and obtained by fitting. ..

Inhibition:

Article Title: Berberrubine is a novel and selective IMPDH2 inhibitor that impairs the growth of colorectal cancer.
Article Snippet: Inosine monophosphate dehydrogenase (IMPDH) catalyzes the rate-limiting reaction in the de novo synthesis pathway of guanine nucleotides that is highly required for cancer cell outgrowth.. Herein, we found that IMPDH isoform 2 (IMPDH2) is highly expressed in colorectal cancer (CRC) and is correlated with poor patient prognosis.. Via structure-based virtual screening, we identified berberrubine, a critical ingredient of the medical plant Coptis chinensis, as a novel, selective, and competitive inhibitor of IMPDH2, which demonstrated over 15-fold selectivity to IMPDH2 than IMPDH1.

Association Rate Constant:

Article Title: Berberrubine is a novel and selective IMPDH2 inhibitor that impairs the growth of colorectal cancer.
Article Snippet: Inosine monophosphate dehydrogenase (IMPDH) catalyzes the rate-limiting reaction in the de novo synthesis pathway of guanine nucleotides that is highly required for cancer cell outgrowth.. Herein, we found that IMPDH isoform 2 (IMPDH2) is highly expressed in colorectal cancer (CRC) and is correlated with poor patient prognosis.. Via structure-based virtual screening, we identified berberrubine, a critical ingredient of the medical plant Coptis chinensis, as a novel, selective, and competitive inhibitor of IMPDH2, which demonstrated over 15-fold selectivity to IMPDH2 than IMPDH1.

Dissociation Rate Constant:

Article Title: Berberrubine is a novel and selective IMPDH2 inhibitor that impairs the growth of colorectal cancer.
Article Snippet: Inosine monophosphate dehydrogenase (IMPDH) catalyzes the rate-limiting reaction in the de novo synthesis pathway of guanine nucleotides that is highly required for cancer cell outgrowth.. Herein, we found that IMPDH isoform 2 (IMPDH2) is highly expressed in colorectal cancer (CRC) and is correlated with poor patient prognosis.. Via structure-based virtual screening, we identified berberrubine, a critical ingredient of the medical plant Coptis chinensis, as a novel, selective, and competitive inhibitor of IMPDH2, which demonstrated over 15-fold selectivity to IMPDH2 than IMPDH1.

Inactivation:

Article Title: Berberrubine is a novel and selective IMPDH2 inhibitor that impairs the growth of colorectal cancer.
Article Snippet: Inosine monophosphate dehydrogenase (IMPDH) catalyzes the rate-limiting reaction in the de novo synthesis pathway of guanine nucleotides that is highly required for cancer cell outgrowth.. Herein, we found that IMPDH isoform 2 (IMPDH2) is highly expressed in colorectal cancer (CRC) and is correlated with poor patient prognosis.. Via structure-based virtual screening, we identified berberrubine, a critical ingredient of the medical plant Coptis chinensis, as a novel, selective, and competitive inhibitor of IMPDH2, which demonstrated over 15-fold selectivity to IMPDH2 than IMPDH1.

Binding Assay:

Article Title: Interaction Energetics and Druggability of the Protein-Protein Interaction between Kelch-like ECH-associated Protein 1 (KEAP1) and Nuclear Factor, Erythroid 2 Like 2 (Nrf2)
Article Snippet: .. The competition binding results were fitted using the numerical nonlinear regression software DynaFit 4 (BioKin Ltd.), using the competitive binding model shown below: KEAP1 · FITC − Nrf2 ⇋ K D1 FITC − Nrf2 + KEAP1 + Nrf2 34 − 100 ⇌ K D2 KEAP1 · Nrf2 34 − 100 In applying this model, the FITC-labeled probe peptide concentration, the KEAP1 concentration and K D1 values were fixed, allowing K D2 and the molar response of the complex to be variable and obtained by fitting. ..

Article Title: Recapitulating the Binding Affinity of Nrf2 for KEAP1 in a Cyclic Heptapeptide, Guided by NMR, X-ray Crystallography, and Machine Learning.
Article Snippet: Macrocycles, including macrocyclic peptides, have shown promise for targeting challenging protein−protein interactions (PPIs).. One PPI of high interest is between Kelch-like ECH-Associated Protein-1 (KEAP1) and Nuclear Factor (Erythroid-derived 2)-like 2 (Nrf2).. Guided by X-ray crystallography, NMR, modeling, and machine learning, we show that the full 20 nM binding affinity of Nrf2 for KEAP1 can be recapitulated in a cyclic 7-mer peptide, c[(D)-β-homoAla-DPETGE].

Concentration Assay:

Article Title: Interaction Energetics and Druggability of the Protein-Protein Interaction between Kelch-like ECH-associated Protein 1 (KEAP1) and Nuclear Factor, Erythroid 2 Like 2 (Nrf2)
Article Snippet: .. The competition binding results were fitted using the numerical nonlinear regression software DynaFit 4 (BioKin Ltd.), using the competitive binding model shown below: KEAP1 · FITC − Nrf2 ⇋ K D1 FITC − Nrf2 + KEAP1 + Nrf2 34 − 100 ⇌ K D2 KEAP1 · Nrf2 34 − 100 In applying this model, the FITC-labeled probe peptide concentration, the KEAP1 concentration and K D1 values were fixed, allowing K D2 and the molar response of the complex to be variable and obtained by fitting. ..



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