Related Experiment Video
Updated: Oct 26, 2025
Author Spotlight: Identifying Compensatory Pathways in Malaria Parasites Containing Hypomorphic Allele of Essential Protein Kinases
Published on: November 22, 2024
Immunoinformatic Analysis of Calcium-Dependent Protein Kinase 7 (CDPK7) Showed Potential Targets for Toxoplasma
Ali Taghipour1, Sanaz Tavakoli2, Mohamad Sabaghan3
1Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Abstract:
Apicomplexan parasites, including Toxoplasma gondii (T. gondii), express different types of calcium-dependent protein kinases (CDPKs), which perform a variety of functions, including attacking and exiting the host cells. In the current bioinformatics study, we have used several web servers to predict the basic features and specifications of the CDPK7 protein. The findings showed that CDPK7 protein has 2133 amino acid residues with an average molecular weight (MW) of 219085.79 D. The aliphatic index with 68.78 and grand average of hydropathicity (GRAVY) with -0.331 score were estimated. The outcomes of current research showed that the CDPK7 protein included 502 alpha-helix, 1311 random coils, and 320 extended strands with GOR4 method. Considering the Ramachandran plot, the favored region contains more than 92% of the amino acid residues. In addition, evaluation of antigenicity and allergenicity showed that CDPK7 protein has immunogenic and nonallergenic nature. The present research provides key data for more animal-model study on the CDPK7 protein to design an efficient vaccine against toxoplasmosis in the future.
Insights
This study characterizes the CDPK7 protein from Apicomplexan parasites, revealing its structural features and immunogenic potential. These findings are crucial for developing future vaccines against toxoplasmosis.
Area of Science:
- Parasitology
- Biochemistry
- Bioinformatics
Background:
- Apicomplexan parasites like *Toxoplasma gondii* utilize calcium-dependent protein kinases (CDPKs) for host cell invasion and egress.
- CDPKs play diverse roles in parasite biology, making them potential targets for therapeutic intervention.
Purpose of the Study:
- To predict the basic features and specifications of the CDPK7 protein using bioinformatics tools.
- To evaluate the antigenicity and allergenicity of the CDPK7 protein.
Main Methods:
- Bioinformatic analysis using various web servers.
- Prediction of protein features: amino acid count, molecular weight, aliphatic index, GRAVY score.
- Secondary structure prediction (alpha-helix, random coils, extended strands) using GOR4 method.
- Ramachandran plot analysis for stereochemical quality.
- Antigenicity and allergenicity assessment.
Main Results:
- CDPK7 protein comprises 2133 amino acid residues with a molecular weight of 219085.79 D.
- Estimated aliphatic index of 68.78 and a GRAVY score of -0.331.
- Secondary structure analysis revealed 502 alpha-helices, 1311 random coils, and 320 extended strands.
- Ramachandran plot indicated over 92% of residues in favored regions, signifying good stereochemical quality.
- CDPK7 was predicted to be immunogenic and nonallergenic.
Conclusions:
- The CDPK7 protein possesses distinct structural and physicochemical properties.
- Its immunogenic and nonallergenic nature suggests potential as a vaccine candidate.
- This data provides a foundation for further in vivo studies to develop effective toxoplasmosis vaccines.
More Related Videos
11:37QTL Mapping and CRISPR/Cas9 Editing to Identify a Drug Resistance Gene in Toxoplasma gondii
Published on: June 22, 2017
11:21Forward Genetics Screens Using Macrophages to Identify Toxoplasma gondii Genes Important for Resistance to IFN-γ-Dependent Cell Autonomous Immunity
Published on: March 12, 2015
