An efficient ranking deep neural network algorithm for the prediction of Ca2+ binding sites of the protein.

Pritee Parwekar, Samudrala Gourinath, Jaishree Jain, Shilpa Gundagatti, Jabir Ali, Punit Gupta, Asmir Butkovic

Journal: PloS one 2026;21(8):e0355853

PMID: 42594107

Abstract

The Ca2+ binding sites of proteins are critical for their function, particularly in processes such as signal transduction, enzyme regulation, and structural stability. In this study, the calcium-binding sites of NtEhCaBP1 (Entamoeba histolytica calcium-binding protein). This paper proposes Statistical Ranking Deep Learning (SR-ML) to estimate the binding affinities of ten protein variants, The proposed SR-ML model computes the features in the proteins with the detection of sequences in the bindings. The classification of binding sites evaluated with the optimization of the features. With each predicted variant's binding affinity correlates well with its experimental value with Kendall Tau (τ) values ranging from 0.78 to 0.95 and Spearman rank correlation (ρ) ranging from 0.75 to 0.94. Specifically, the Root Mean Square, Deviation (RMSD) shows protein flexibility in values of 0.95 to 1.50 angstrom and Root Mean Fluctuation (RMSF) values of 0.30 angstrom to 0.50 angstrom. The binding energy falls from negative 4.90 kcal/mol to negative 7.20 kcal/mol proposing differing levels of protein stability. Secondly, considering calcium coordination geometry we describe how there are octahedral, tetrahedral and trigonal bipyramidal structures in various proteins, with Kd values of 0.3 uM to 5.0 uM. The anti-AIDS bioactive example of mutagenesis validation is at a 120-folds to 600-folds increase from binding affinity for several mutations involving dynamic correlation with values of between 0.88 to 0.97. These outcomes reveal that the SR-ML model has certain predictive preciseness in terms of the Ca-binding sites and protein motions, which is valuable for Drug designing involving the Ca signalling Pathway.

Copyright: © 2026 Parwekar et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Address: Department of Computer Science and System Engineering, GITAM School of Computer Science and Engineering, GITAM University, Hyderabad, India.; School of Life Sciences, Jawaharlal Nehru University, New Delhi, India.; Department of Computer Science and Engineering, Ajay Kumar Garg Engineering College, Ghaziabad, Uttar Pradesh, India.; Independent Researcher, Hapur, UP, India.; Department of CSE, Bennett University, Noida, India.; National College of Ireland, Dublin, Ireland.; Pandit Deendayal Energy University, Gandhinagar, India.; Technological University Dublin, Dublin, Ireland.
Bant logo

© Copyright 2026, Nutrition Evidence

NED wishes to thank the following organisations for their support:

We use cookies to improve your experience and analyze site traffic with Google Analytics. By continuing to use our site, you agree to our use of cookies. Learn more.