Molecular structures

Human driven, AI empowered computational

chemistry delivering mechanistic insight and

actionable drug design and optimization

Specializing in GPCR structure-based design, antiviral targets, non-equilibrium molecular dynamics, cryptic pockets, and next-generation angiotensin receptor blockers (bisartans). Project-based and retainer engagements for BIOTECH, PHARMA, and ACADEMIC partners.

Core Focus Areas...

AT1R binding pockets
What We Deliver...
secure, results-driven, Senior level independent cadd & computational chemistry consulting services

Consulting Services

High-value, hands-on computational chemistry support designed to amplify and de-risk discovery  programs and generate clear, decision-ready results.

Structure- & Ligand-Based Design

Focused and ultra-large virtual ligand screening (VLS), hit identification, lead optimization, multi-target campaigns, and rational design across GPCRs, viral proteases, and other disease targets, flexible-receptor docking, ensemble docking, covalent docking,drug-receptor residue interaction analysis, 2D and 3D drug interaction diagrams, .

Advanced Molecular Dynamics

GPU-accelerated MD, non-equilibrium / forced MD, steered MD, drug tunneling studies, membrane-integrated GPCR simulations, cryptic pocket exploration, and conformational analysis of receptor–ligand complexes, full trajectory analyses including binding free energy, RMSD, RMSF, RDF.

GPCR & Allosteric Mechanisms

Deep expertise in AT1R gating, biased agonism, extracellular allosteric sites, receptor cross-binding, desensitization, and polypharmacology of sartans/bisartans.

Antiviral & Host-Target Design

Furin inhibition strategies, spike/ACE2 interactions, arginine–tetrazole recognition paradigms, and multi-viral (SARS-CoV-2, influenza, RSV) design concepts.

Cheminformatics & ADMET

Library design and curation, ADMET profiling, structure similarity analysis, QSAR model development and deployment, and automated pipelines for compound prioritization.

Custom Methods & Advisory

Novel algorithm development (Python/Tcl), QM/MM chemical reaction modeling, expert reports for IP and due diligence, grant support, training, and ongoing scientific advisory retainers.

Selected Contributions

Impact Relevant to Clients

2026

Broad GPCR Polypharmacology of Sartans & Bisartans

Demonstrated expanded receptor interactome (α-adrenergic, μ- and δ-opioid receptors) with implications for cardiovascular disease, addiction, and multi-target design. Published in Int. J. Mol. Sci. and related venues.

2026

Arginine–Tetrazole Paradigm in Viral Infection

Advanced the physicochemical basis for tetrazole-containing ARBs and bisartans engaging arginine-rich viral motifs (furin cleavage sites, spike regions). Published in Pathogens.

2023–25

Furin W254 Molecular Gate & Drug Tunneling

Elucidated W254 as a molecular gate promoting antiviral drug binding using non-equilibrium MD. Directly relevant to cryptic-pocket and host-protease targeting strategies. Published in CSBJ

Ongoing

Next-Generation ARBs / Bisartans & MAO-B Design

Discovery and modeling of novel bisartans with dual cardiovascular/antiviral potential | Transforming Growth Factor Beta (TGFbeta) | Small-molecular animal venom antagonists | A first-in-class MAO-B antagonist concept for Parkinson’s disease. View MAO-B IP offering →

Technical Depth

Methods & Platforms

Simulation & Modeling

GPU-accelerated MD, non-equilibrium MD, VLS, docking, QM/MM, free-energy approaches, cryptic-pocket methods, polymer/membrane atomistic modeling.

Primary Platforms

Yasara Structure, Molsoft ICMpro, GROMACS-compatible workflows, ProteinsPlus, PASSer, CryptoSite/CryptoBank, and custom open-source pipelines.

Cheminformatics & Code

Large-library handling, ADMET profiling, structure clustering, Python & Tcl/Tk automation, custom algorithm development, AI-augmented coding and analysis.

Delivery Style

Clear written reports, publication-quality figures, decision-oriented recommendations, and optional knowledge-transfer or training sessions.

Evidence Base

Selected Recent Publications

Emphasis on GPCR, antiviral, ARB/bisartan, and methods papers most relevant to prospective clients. Full list available on request.

2026 Sartans and Bisartans: Expanding Therapeutic Horizons Through Broad Receptor Interactions and Repurposing Potential. Int. J. Mol. Sci. 27, 8883.
2026 GPCRs Share an Allosteric Regulatory Site Located Within the Extracellular Agonist-Binding Pocket. Cells (pre-print).
2024 Bisartans: Pursuing Next-Generation Pan-Antiviral Therapeutics. Viruses 16(11), 1776.
2022–2023 Multiple additional papers on bisartans, SARS-CoV-2 mutational energetics, and ARB mechanisms in Molecules, Viruses, and Comput. Struct. Biotechnol. J.
2017-2018 Additional computational chemistry papers - not drug related per se:    QM/MM reaction modeling-gas phase;     QM/MM reaction modeling-aqueous phase;     Polymer modeling
How We Work

Engagement Models

Project-Based

Defined-scope CADD campaigns, MD deep-dives, or design cycles with clear deliverables and timelines.

Retainer Advisory

Ongoing access for prioritization, interpretation, and rapid-response modeling support.

Expert Reports

IP, due-diligence, grant, or mechanism-of-action reports suitable for external stakeholders.

Method Transfer

Custom pipeline development and training so your team can operate independently.

Harry F. Ridgway, PhD

Founder & Chief Scientific Officer of THERAmolecular, LLC. More than a decade of hands-on computational drug discovery experience spanning industry, academia, and independent consulting. Cross-disciplinary background in CADD, materials modeling, and biotech research management.

Known for mechanistic originality (molecular gates, cryptic pockets, non-equilibrium methods) and for delivering clear, publication-quality results that clients can act on.

📄 Download Full CV (PDF)  |  Full Biography

Credentials Snapshot

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New Mexico, USA · Available for remote engagements worldwide