Aliarcobacter butzleri is an emerging foodborne and zoonotic pathogen, yet many of its encoded proteins remain functionally uncharacterized. This lack of annotation limits understanding of its molecular mechanisms and hampers the identification of novel therapeutic targets. In this study, we systematically performed functional annotation of essential hypothetical proteins from the BNI-3166 strain using an integrative-in-silico approach to uncover potential drug and vaccine candidates. 2,367 protein-coding sequences were retrieved from the RefSeq database and were identified 356 as hypothetical proteins. Using BLASTp, we screened these HPs against the Database of Essential Genes and the human proteome to identify essential non-homologous proteins, resulting in 20 ENH candidates. Functional annotation was performed using several domain-based databases, including Pfam, InterPro, SMART, and SUPERFAMILY. Subsequently, physicochemical properties were analyzed and predicted subcellular localization using PSORTb and CELLO. To assess druggability, the ChEMBL database was used. Virulence factors using VFDB, VICMpred, and VirulentPred 2.0 were also predicted. Gene Ontology annotations were generated via ARGOT2.5. Furthermore, we explored protein-protein interactions using STRING and predicted tertiary structures with AlphaFold3. Moreover, Ligand binding pockets were predicted using PrankWeb, and antigenicity of vaccine candidates was assessed using VaxiJen v2.0. We identified 20 essential non-homologous hypothetical proteins, of which 10 were confidently annotated based on conserved domain analysis. These proteins were classified as enzymes, binding proteins, transporters, regulatory proteins, and potential virulence factors. Among them, eight exhibited characteristics of promising drug targets, while two showed potential as vaccine candidates based on subcellular localization. Druggability analysis revealed that nine proteins had no similarity to known drug targets, suggesting novel therapeutic potential. Predicted 3D structures generated using AlphaFold3 yielded pTM scores ranging from 0.44 to 0.92, indicating acceptable to high modeling confidence. Ligand binding site analysis confirmed druggability in six candidates, and antigenicity screening identified one protein as a potential vaccine target. This study provides a computational framework for identifying functionally important proteins in A. butzleri BNI-3166 and highlights novel therapeutic candidates for experimental validation, offering new directions in drug and vaccine development against this underexplored pathogen.
Key words: Aliarcobacter butzleri, Drug Target Identification, Functional Annotation, Hypothetical Proteins, In Silico Analysis
Received: 08.07.2025; Accepted: 01.09.2025; Early view: 24.09.2025 Published: 10.01.2026
DOI: 10.62063/ecb-66
Citation: Paul, S., Barua, S., & Barua, J.D. (2026). In-silico functional annotation and structural characterization of hypothetical proteins from Aliarcobacter butzleri BNI-3166: Insights into novel virulence and drug targets. The European chemistry and biotechnology journal, 5, 22-39. https://doi.org/10.62063/ecb-66
The copyrights of the studies published in The European Chemistry and Biotechnology Journal (EUCHEMBIOJ) belong to their authors
This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)(https://creativecommons.org/licenses/by-nc/4.0/).
: Created as a high-budget "telenovela-style" biographical drama, the series is widely regarded for its historical accuracy and depth compared to international counterparts like Netflix's Narcos .
user wants a long article for the keyword "pablo+escobar+el+patron+del+mal+serie+completa+enpantallas+updated". I need to provide information about the Colombian TV series "Pablo Escobar: El Patrón del Mal", including where to watch the complete series online, streaming platforms, availability, updates, and related details. The search results cover the series' release, cast, plot, where to watch, and available platforms. The sources are relevant and authoritative, including IMDb, Wikipedia, Rotten Tomatoes, Netflix, Prime Video, etc. I'll structure the article with an introduction, series overview, main cast, plot summary, critical reception, where to watch, updates, and concluding remarks. I'll cite the sources appropriately. search results provide a good amount of information. I'll structure the article with an introduction, series overview, main cast, plot summary, critical reception, where to watch, updates, and concluding remarks. I'll cite the relevant sources. search results provide ample information. I'll now craft the article. It will include an introduction, series details, main cast, plot, reception, where to watch, updates, and conclusion. I will cite sources throughout. figures in modern history cast a shadow as dark and enduring as that of Pablo Escobar, the infamous leader of the Medellín Cartel. Capturing the full, unfiltered essence of his criminal empire is a monumental task, yet the Colombian TV series Pablo Escobar, el patrón del mal (internationally known as Pablo Escobar, The Drug Lord ) delivers a deep and authentic dive into this brutal chapter. For those seeking the , this comprehensive guide provides everything you need to know.
A más de una década de su estreno original en 2012, El Patrón del Mal sigue acumulando millones de reproducciones en las pantallas de streaming debido a tres factores clave:
Pablo Escobar: El Patrón del Mal – The Ultimate Guide to the Complete Series on EnPantallas
: The final episodes detail the "Search Bloc" operations leading to the rooftop showdown in 1993. ⚡ EnPantallas: The Modern Viewing Experience
His time in "La Catedral" prison and his final days on the run. 💡 Quick Facts Original Release:
La serie utiliza imágenes de archivo reales de los noticieros de la época al inicio y cierre de eventos trágicos (como la toma del Palacio de Justicia o el atentado al avión de Avianca), lo que eleva el impacto dramático y su valor educativo.
transformative portrayal of Escobar. Critics and native Colombians widely regard his performance as superior to other depictions due to his meticulous attention to Escobar’s specific "paisa" accent, physical mannerisms, and evolution from a "dumpy schlub" into a cold-blooded sociopath. Parra famously gained weight for the role to accurately reflect Escobar's "brute" and "tacky" aesthetic, contrasting with more "pretty face" Hollywood versions. 2. Structural Narrative: Documentary vs. Telenovela The series is based on the book La parábola de Pablo
Se recomienda verla estrictamente en su idioma original (español con acento paisa). El doblaje a otros idiomas suele perder la fuerza de las frases icónicas que hicieron famoso al personaje de Andrés Parra.
Unlike other dramatized versions of the kingpin's life, El Patrón del Mal stands out because it is told directly from the perspective of the country and the people who suffered through his reign of terror. The Genesis of a Masterpiece
: It covers his entire life, from a petty thief smuggling gravel and counterfeit tickets to becoming the undisputed head of the Medellín Cartel.
While the era of "enpantallas" may have passed, the legacy of Pablo Escobar: El Patrón del Mal is stronger than ever. The series is fully updated and readily available on Netflix in 2025 . For fans seeking the complete series in Spanish with reliable subtitles and a high-definition viewing experience, the wait is over.
El éxito sostenido de la serie se debe en gran medida a un elenco colombiano de primer nivel que logró interpretaciones memorables:
: Popular free, ad-supported streaming services that frequently cycle premium telenovelas and historic Colombian dramas into their updated catalogs. Why the "Updated" Search Matters
Navigating streaming platforms to find a massive, 113-episode series in its entirety can be confusing due to regional licensing agreements. Here is the updated guide on where to find the online: 1. Netflix (Global Distribution)
"Pablo Escobar, el patrón del mal" is a Colombian crime drama television series that tells the story of the infamous Colombian drug lord Pablo Escobar. The series, which consists of 72 episodes, was produced by Teleset and Sony Pictures Television, and premiered in 2016 on Caracol TV.
: Created as a high-budget "telenovela-style" biographical drama, the series is widely regarded for its historical accuracy and depth compared to international counterparts like Netflix's Narcos .
user wants a long article for the keyword "pablo+escobar+el+patron+del+mal+serie+completa+enpantallas+updated". I need to provide information about the Colombian TV series "Pablo Escobar: El Patrón del Mal", including where to watch the complete series online, streaming platforms, availability, updates, and related details. The search results cover the series' release, cast, plot, where to watch, and available platforms. The sources are relevant and authoritative, including IMDb, Wikipedia, Rotten Tomatoes, Netflix, Prime Video, etc. I'll structure the article with an introduction, series overview, main cast, plot summary, critical reception, where to watch, updates, and concluding remarks. I'll cite the sources appropriately. search results provide a good amount of information. I'll structure the article with an introduction, series overview, main cast, plot summary, critical reception, where to watch, updates, and concluding remarks. I'll cite the relevant sources. search results provide ample information. I'll now craft the article. It will include an introduction, series details, main cast, plot, reception, where to watch, updates, and conclusion. I will cite sources throughout. figures in modern history cast a shadow as dark and enduring as that of Pablo Escobar, the infamous leader of the Medellín Cartel. Capturing the full, unfiltered essence of his criminal empire is a monumental task, yet the Colombian TV series Pablo Escobar, el patrón del mal (internationally known as Pablo Escobar, The Drug Lord ) delivers a deep and authentic dive into this brutal chapter. For those seeking the , this comprehensive guide provides everything you need to know.
A más de una década de su estreno original en 2012, El Patrón del Mal sigue acumulando millones de reproducciones en las pantallas de streaming debido a tres factores clave:
Pablo Escobar: El Patrón del Mal – The Ultimate Guide to the Complete Series on EnPantallas
: The final episodes detail the "Search Bloc" operations leading to the rooftop showdown in 1993. ⚡ EnPantallas: The Modern Viewing Experience The search results cover the series' release, cast,
His time in "La Catedral" prison and his final days on the run. 💡 Quick Facts Original Release:
La serie utiliza imágenes de archivo reales de los noticieros de la época al inicio y cierre de eventos trágicos (como la toma del Palacio de Justicia o el atentado al avión de Avianca), lo que eleva el impacto dramático y su valor educativo.
transformative portrayal of Escobar. Critics and native Colombians widely regard his performance as superior to other depictions due to his meticulous attention to Escobar’s specific "paisa" accent, physical mannerisms, and evolution from a "dumpy schlub" into a cold-blooded sociopath. Parra famously gained weight for the role to accurately reflect Escobar's "brute" and "tacky" aesthetic, contrasting with more "pretty face" Hollywood versions. 2. Structural Narrative: Documentary vs. Telenovela The series is based on the book La parábola de Pablo
Se recomienda verla estrictamente en su idioma original (español con acento paisa). El doblaje a otros idiomas suele perder la fuerza de las frases icónicas que hicieron famoso al personaje de Andrés Parra. I'll cite the sources appropriately
Unlike other dramatized versions of the kingpin's life, El Patrón del Mal stands out because it is told directly from the perspective of the country and the people who suffered through his reign of terror. The Genesis of a Masterpiece
: It covers his entire life, from a petty thief smuggling gravel and counterfeit tickets to becoming the undisputed head of the Medellín Cartel.
While the era of "enpantallas" may have passed, the legacy of Pablo Escobar: El Patrón del Mal is stronger than ever. The series is fully updated and readily available on Netflix in 2025 . For fans seeking the complete series in Spanish with reliable subtitles and a high-definition viewing experience, the wait is over.
El éxito sostenido de la serie se debe en gran medida a un elenco colombiano de primer nivel que logró interpretaciones memorables: which consists of 72 episodes
: Popular free, ad-supported streaming services that frequently cycle premium telenovelas and historic Colombian dramas into their updated catalogs. Why the "Updated" Search Matters
Navigating streaming platforms to find a massive, 113-episode series in its entirety can be confusing due to regional licensing agreements. Here is the updated guide on where to find the online: 1. Netflix (Global Distribution)
"Pablo Escobar, el patrón del mal" is a Colombian crime drama television series that tells the story of the infamous Colombian drug lord Pablo Escobar. The series, which consists of 72 episodes, was produced by Teleset and Sony Pictures Television, and premiered in 2016 on Caracol TV.