ArticlePloS one2010
Roles of electrostatics and conformation in protein-crystal interactions.
Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
20 citing papers in PubMed, 81 citations in OpenAlex.
- Regulation of recombinant humanized collagen on HAP growth and its molecule simulation.RSC advances · 2023Article
- Nuclear Magnetic Resonance and Metadynamics Simulations Reveal the Atomistic Binding of l-Serine andChemistry of materials : a publication of the American Chemical Society · 2022Article
- Modulation ofMicroorganisms · 2022Article
- Osteopontin on the Dental Implant Surface Promotes Direct Osteogenesis in Osseointegration.International journal of molecular sciences · 2022Article
- Advanced non-fluoride approaches to dental enamel remineralization: The next level in enamel repair management.Biomaterials and biosystems · 2021Review
- Intrinsically Disordered Osteopontin Fragment Orders During Interfacial Calcium Oxalate Mineralization.Angewandte Chemie (International ed. in English) · 2021Article
- Structural Constraint of Osteopontin Facilitates Efficient Binding to CD44.Biomolecules · 2021Article
- Article
- Stem Cell-Friendly Scaffold Biomaterials: Applications for Bone Tissue Engineering and Regenerative Medicine.Frontiers in bioengineering and biotechnology · 2020Review
- Acquired Enamel Pellicle Engineered Peptides: Effects on Hydroxyapatite Crystal Growth.Scientific reports · 2018Article
- Effects of atomic-level nano-structured hydroxyapatite on adsorption of bone morphogenetic protein-7 and its derived peptide by computer simulation.Scientific reports · 2017Article
- Phosphorylation regulates the secondary structure and function of dentin phosphoprotein peptides.Bone · 2017Article
- Effect of the Materials Properties of Hydroxyapatite Nanoparticles on Fibronectin Deposition and Conformation.Crystal growth & design · 2015Article
- The role of phosphorylation in dentin phosphoprotein peptide absorption to hydroxyapatite surfaces: a molecular dynamics study.Connective tissue research · 2014Article
- Increased osteopontin contributes to inhibition of bone mineralization in FGF23-deficient mice.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2014Article
- Dynamic light scattering study of inhibition of nucleation and growth of hydroxyapatite crystals by osteopontin.PloS one · 2013Article
- Biomolecular mechanism of urinary stone formation involving osteopontin.Urological research · 2012Review
- Development of a pterin-based fluorescent probe for screening dihydropteroate synthase.Bioconjugate chemistry · 2011Article
- Microsecond molecular dynamics simulations of intrinsically disordered proteins involved in the oxidative stress response.PloS one · 2011Article
- Intrinsically disordered proteins and biomineralization.Matrix biology : journal of the International Society for Matrix BiologyReview
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
In vitro studies have shown that the phosphoprotein osteopontin (OPN) inhibits the nucleation and growth of hydroxyapatite (HA) and other biominerals. In vivo, OPN is believed to prevent the calcification of soft tissues. However, the nature of the interaction between OPN and HA is not understood. In the computational part of the present study, we used molecular dynamics simulations to predict the adsorption of 19 peptides, each 16 amino acids long and collectively covering the entire sequence of OPN, to the {100} face of HA. This analysis showed that there is an inverse relationship between predicted strength of adsorption and peptide isoelectric point (P<0.0001). Analysis of the OPN sequence by PONDR (Predictor of Naturally Disordered Regions) indicated that OPN sequences predicted to adsorb well to HA are highly disordered. In the experimental part of the study, we synthesized phosphorylated and non-phosphorylated peptides corresponding to OPN sequences 65-80 (pSHDHMDDDDDDDDDGD) and 220-235 (pSHEpSTEQSDAIDpSAEK). In agreement with the PONDR analysis, these were shown by circular dichroism spectroscopy to be largely disordered. A constant-composition/seeded growth assay was used to assess the HA-inhibiting potencies of the synthetic peptides. The phosphorylated versions of OPN65-80 (IC(50) = 1.93 microg/ml) and OPN220-235 (IC(50) = 1.48 microg/ml) are potent inhibitors of HA growth, as is the nonphosphorylated version of OPN65-80 (IC(50) = 2.97 microg/ml); the nonphosphorylated version of OPN220-235 has no measurable inhibitory activity. These findings suggest that the adsorption of acidic proteins to Ca2+-rich crystal faces of biominerals is governed by electrostatics and is facilitated by conformational flexibility of the polypeptide chain.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.