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  • Article
  • Open Access
4,089 Views
22 Pages

Potential Role of Tarantula Venom Peptides in Targeting Human Death Receptors: A Computational Study

  • Janus Isaiah R. Quiambao,
  • Peter Matthew Paul T. Fowler and
  • Lemmuel L. Tayo

26 September 2024

Animal venom has been gaining traction as a potential source of therapeutics for various diseases. Spiders encompass a wide variety of venom-producing species, of which tarantulas of the family Theraphosidae are widely known across the globe. Researc...

  • Article
  • Open Access
5 Citations
4,973 Views
21 Pages

Indian Ornamental Tarantula (Poecilotheria regalis) Venom Affects Myoblast Function and Causes Skeletal Muscle Damage

  • Nicholas J. Richards,
  • Ali Alqallaf,
  • Robert D. Mitchell,
  • Andrew Parnell,
  • Husain Bin Haidar,
  • José R. Almeida,
  • Jarred Williams,
  • Pradeep Vijayakumar,
  • Adedoyin Balogun and
  • Sakthivel Vaiyapuri
  • + 3 authors

15 August 2023

Envenomation by the Indian ornamental tarantula (Poecilotheria regalis) is medically relevant to humans, both in its native India and worldwide, where they are kept as pets. Muscle-related symptoms such as cramps and pain are commonly reported in hum...

  • Article
  • Open Access

Molecular Basis of the Inhibition of Voltage-Gated Potassium Channel Kv1.1 by Chinese Tarantula Peptide Huwentoxin-XI

  • Xuan Luo,
  • Yuan Yin,
  • Fenghua Wang,
  • Xinyu Li,
  • Shujun Wang,
  • Yumei Yang,
  • Chunbing Zheng,
  • Jing Liu and
  • Meichun Deng

1 March 2026

Huwentoxin-XI (HWTX-XI) is a 55-amino acid peptide belonging to the family of spider Kuntiz-type toxins (KTTs), isolated from the venom of the Chinese tarantula Ornithoctonus huwena. Under whole-cell voltage-clamp conditions, HWTX-XI was found to blo...

  • Article
  • Open Access
4 Citations
3,728 Views
17 Pages

The Tarantula Toxin ω-Avsp1a Specifically Inhibits Human CaV3.1 and CaV3.3 via the Extracellular S3-S4 Loop of the Domain 1 Voltage-Sensor

  • Volker Herzig,
  • Yong-Cyuan Chen,
  • Yanni K.-Y. Chin,
  • Zoltan Dekan,
  • Yu-Wang Chang,
  • Hui-Ming Yu,
  • Paul F. Alewood,
  • Chien-Chang Chen and
  • Glenn F. King

Inhibition of T-type calcium channels (CaV3) prevents development of diseases related to cardiovascular and nerve systems. Further, knockout animal studies have revealed that some diseases are mediated by specific subtypes of CaV3. However, subtype-s...

  • Article
  • Open Access
21 Citations
10,021 Views
13 Pages

Venom Profiling of a Population of the Theraphosid Spider Phlogius crassipes Reveals Continuous Ontogenetic Changes from Juveniles through Adulthood

  • Renan C. Santana,
  • David Perez,
  • James Dobson,
  • Nadya Panagides,
  • Robert J. Raven,
  • Amanda Nouwens,
  • Alun Jones,
  • Glenn F. King and
  • Bryan G. Fry

25 March 2017

Theraphosid spiders (tarantulas) are venomous arthropods found in most tropical and subtropical regions of the world. Tarantula venoms are a complex cocktail of toxins with potential use as pharmacological tools, drugs and bioinsecticides. Although n...

  • Communication
  • Open Access
29 Citations
9,236 Views
10 Pages

25 August 2019

Animal venoms are promising sources of novel drug leads, but their translational potential is hampered by the low success rate of earlier biodiscovery programs, in part reflecting the narrow selection of targets for investigation. To increase the num...

  • Article
  • Open Access
993 Views
10 Pages

Tarantulas represent a highly diverse taxonomic group and play a crucial role in ecosystems. To gain a deeper understanding of the evolutionary relationships within the family Theraphosidae, in this study, we characterized the mitochondrial genome (m...

  • Article
  • Open Access
1,147 Views
18 Pages

14 November 2025

Spider-derived venoms are a rich source of cystine knot peptides with immense therapeutic potential. Many of these peptides exert unique biological activities through the modulation of ion channels, including of human voltage-gated sodium (NaV1.1&nda...

  • Article
  • Open Access
382 Views
27 Pages

Optimizing Mortar Mix Design for Concrete Roofing Tiles Using Machine Learning and Particle Packing Theory: A Case Study

  • Jorge Fernando Sosa Gallardo,
  • Vivian Felix López Batista,
  • Aldo Fernando Sosa Gallardo,
  • María N. Moreno-García and
  • Maria Dolores Muñoz Vicente

25 December 2025

The increasing demand for sustainable construction materials has motivated the optimization of mortar mix designs to reduce cement consumption and its environmental impact while maintaining adequate mechanical performance. This study develops a machi...

  • Review
  • Open Access
6 Citations
7,301 Views
17 Pages

21 October 2021

Parasitoid wasps represent the plurality of venomous animals, but have received extremely little research in proportion to this taxonomic diversity. The lion’s share of investigation into insect venoms has focused on eusocial hymenopterans, but even...

  • Article
  • Open Access
1 Citations
2,845 Views
13 Pages

26 July 2024

Edible insects are becoming increasingly popular as protein alternatives to traditional animal-based products. As such, information on their elemental composition is important to ensure they are safe for human consumption. This article describes the...

  • Review
  • Open Access
50 Citations
6,514 Views
23 Pages

8 November 2019

A review of the properties of the Tarantula Nebula (30 Doradus) in the Large Magellanic Cloud is presented, primarily from the perspective of its massive star content. The proximity of the Tarantula and its accessibility to X-ray through radio observ...

  • Article
  • Open Access
1 Citations
1,312 Views
22 Pages

9 May 2025

The durability of concrete is compromised by early-age cracking, which provides a pathway for harmful ions and water to penetrate the material. Early-age cracking, however, is most commonly caused by concrete shrinkage. This study investigates strate...

  • Article
  • Open Access
34 Citations
6,963 Views
21 Pages

Tarantula: Design, Modeling, and Kinematic Identification of a Quadruped Wheeled Robot

  • Abdullah Aamir Hayat,
  • Karthikeyan Elangovan,
  • Mohan Rajesh Elara and
  • Mullapudi Sai Teja

27 December 2018

This paper firstly presents the design and modeling of a quadruped wheeled robot named Tarantula. It has four legs each having four degrees of freedom with a proximal end attached to the trunk and the wheels for locomotion connected at the distal end...

  • Article
  • Open Access
13 Citations
12,759 Views
18 Pages

Proteotranscriptomic Insights into the Venom Composition of the Wolf Spider Lycosa tarantula

  • Dominique Koua,
  • Rosanna Mary,
  • Anicet Ebou,
  • Celia Barrachina,
  • Khadija El Koulali,
  • Guillaume Cazals,
  • Pierre Charnet and
  • Sebastien Dutertre

5 August 2020

Spider venoms represent an original source of novel compounds with therapeutic and agrochemical potential. Whereas most of the research efforts have focused on large mygalomorph spiders, araneomorph spiders are equally promising but require more sens...

  • Interesting Images
  • Open Access
1 Citations
3,741 Views
5 Pages

4 November 2022

We describe the first predation record of an undescribed adult male tarantula from the genus Euathlus in a juvenile austral thrush (Turdus falcklandii Quoy and Gaimard, 1824) (Aves: Turdidae) in central Chile. The precise moment of predation was not...

  • Article
  • Open Access
2 Citations
3,547 Views
14 Pages

Two Novel Mosquitocidal Peptides Isolated from the Venom of the Bahia Scarlet Tarantula (Lasiodora klugi)

  • Jamila Ahmed,
  • Andrew A. Walker,
  • Hugo D. Perdomo,
  • Shaodong Guo,
  • Samantha A. Nixon,
  • Irina Vetter,
  • Hilary I. Okoh,
  • Dalhatu M. Shehu,
  • Mohammed N. Shuaibu and
  • Volker Herzig
  • + 2 authors

27 June 2023

Effective control of diseases transmitted by Aedes aegypti is primarily achieved through vector control by chemical insecticides. However, the emergence of insecticide resistance in A. aegypti undermines current control efforts. Arachnid venoms...

  • Article
  • Open Access
24 Citations
9,968 Views
20 Pages

Three Peptide Modulators of the Human Voltage-Gated Sodium Channel 1.7, an Important Analgesic Target, from the Venom of an Australian Tarantula

  • Chun Yuen Chow,
  • Ben Cristofori-Armstrong,
  • Eivind A. B. Undheim,
  • Glenn F. King and
  • Lachlan D. Rash

30 June 2015

Voltage-gated sodium (NaV) channels are responsible for propagating action potentials in excitable cells. NaV1.7 plays a crucial role in the human pain signalling pathway and it is an important therapeutic target for treatment of chronic pain. Numero...

  • Article
  • Open Access
5 Citations
2,787 Views
6 Pages

24 June 2022

Thrixopelma nadineae sp. nov. is described from Loja, Ecuador, based on the male, which possesses distinctive palpal bulb, metatarsal and tibial apophysis morphology. The new species represents the second species of Thrixopelma to be recorded from Ec...

  • Article
  • Open Access
2,106 Views
9 Pages

Herein, we redescribe Neostenotarsus guianensis (Caporiacco, 1954) nearly seven decades after its original description. In the original description of Neostenotarsus scissistylus Tesmoingt & Schmidt, 2002, we found characters incongruent with N. ...

  • Article
  • Open Access
2 Citations
2,857 Views
7 Pages

30 December 2021

The hitherto unknown female of the theraphosine Spinosatibiapalpus trinitatis (Pocock, 1903) is herein described based on the paralectotype series of the schismatotheline Neoholothele incei (F. O. Pickard-Cambridge, 1899) housed in the collections of...

  • Article
  • Open Access
6 Citations
3,755 Views
23 Pages

Improving the Annotation of the Venom Gland Transcriptome of Pamphobeteus verdolaga, Prospecting Novel Bioactive Peptides

  • Cristian Salinas-Restrepo,
  • Elizabeth Misas,
  • Sebastian Estrada-Gómez,
  • Juan Carlos Quintana-Castillo,
  • Fanny Guzman,
  • Juan C. Calderón,
  • Marco A. Giraldo and
  • Cesar Segura

15 June 2022

Spider venoms constitute a trove of novel peptides with biotechnological interest. Paucity of next-generation-sequencing (NGS) data generation has led to a description of less than 1% of these peptides. Increasing evidence supports the underestimatio...

  • Article
  • Open Access
4,062 Views
13 Pages

Expression, Purification and Refolding of a Human NaV1.7 Voltage Sensing Domain with Native-like Toxin Binding Properties

  • Ryan V. Schroder,
  • Leah S. Cohen,
  • Ping Wang,
  • Joekeem D. Arizala and
  • Sébastien F. Poget

12 October 2021

The voltage-gated sodium channel NaV1.7 is an important target for drug development due to its role in pain perception. Recombinant expression of full-length channels and their use for biophysical characterization of interactions with potential drug...

  • Article
  • Open Access
20 Citations
7,062 Views
13 Pages

The Aromatic Head Group of Spider Toxin Polyamines Influences Toxicity to Cancer Cells

  • David Wilson,
  • Glen M. Boyle,
  • Lachlan McIntyre,
  • Matthew J. Nolan,
  • Peter G. Parsons,
  • Jennifer J. Smith,
  • Leon Tribolet,
  • Alex Loukas,
  • Michael J. Liddell and
  • Norelle L. Daly
  • + 1 author

27 October 2017

Spider venoms constitute incredibly diverse libraries of compounds, many of which are involved in prey capture and defence. Polyamines are often prevalent in the venom and target ionotropic glutamate receptors. Here we show that a novel spider polyam...

  • Review
  • Open Access
3 Citations
4,037 Views
15 Pages

Gomesin is a cationic antimicrobial peptide which is isolated from the haemocytes of the Brazilian tarantula Acanthoscurria gomesiana and can be produced chemically by Fmoc solid-phase peptide synthesis. Gomesin exhibits a range of biological activit...

  • Feature Paper
  • Article
  • Open Access
49 Citations
7,342 Views
19 Pages

Spider Chitin: An Ultrafast Microwave-Assisted Method for Chitin Isolation from Caribena versicolor Spider Molt Cuticle

  • Tomasz Machałowski,
  • Marcin Wysokowski,
  • Mikhail V. Tsurkan,
  • Roberta Galli,
  • Christian Schimpf,
  • David Rafaja,
  • Erica Brendler,
  • Christine Viehweger,
  • Sonia Żółtowska-Aksamitowska and
  • Hermann Ehrlich
  • + 15 authors

16 October 2019

Chitin, as a fundamental polysaccharide in invertebrate skeletons, continues to be actively investigated, especially with respect to new sources and the development of effective methods for its extraction. Recent attention has been focused on marine...

  • Article
  • Open Access
3 Citations
4,684 Views
19 Pages

On the Tarantula Genus Xenesthis Simon, 1891, with Description of a New Species from Venezuela (Araneae: Theraphosidae)

  • Danniella Sherwood,
  • Ray Gabriel,
  • Pedro Peñaherrera-R.,
  • Antonio D. Brescovit and
  • Sylvia M. Lucas

1 December 2023

The type material of Xenesthis colombiana Simon, 1891, X. immanis Ausserer, 1875, and X. monstrosa Pocock, 1903, are redescribed, with additional specimens of X. colombiana recorded. A neotype is designated for Xenesthis intermedia Schiapelli and Ger...

  • Article
  • Open Access
14 Citations
4,651 Views
13 Pages

3 September 2021

Inhibitor cystine knot (ICK) peptides are knotted peptides with three intramolecular disulfide bonds that affect several types of ion channels. Some are proteolytically stable and are promising scaffolds for drug development. GTx1-15 is an ICK peptid...

  • Article
  • Open Access
10 Citations
3,333 Views
20 Pages

Collision Avoidance and Stability Study of a Self-Reconfigurable Drainage Robot

  • Rizuwana Parween,
  • M. A. Viraj J. Muthugala,
  • Manuel V. Heredia,
  • Karthikeyan Elangovan and
  • Mohan Rajesh Elara

28 May 2021

The inspection and maintenance of drains with varying heights necessitates a drain mapping robot with trained labour to maintain community hygiene and prevent the spread of diseases. For adapting to level changes and navigating in the narrow confined...

  • Article
  • Open Access
7 Citations
4,431 Views
9 Pages

Addition of K22 Converts Spider Venom Peptide Pme2a from an Activator to an Inhibitor of NaV1.7

  • Kathleen Yin,
  • Jennifer R. Deuis,
  • Zoltan Dekan,
  • Ai-Hua Jin,
  • Paul F. Alewood,
  • Glenn F. King,
  • Volker Herzig and
  • Irina Vetter

Spider venom is a novel source of disulfide-rich peptides with potent and selective activity at voltage-gated sodium channels (NaV). Here, we describe the discovery of μ-theraphotoxin-Pme1a and μ/δ-theraphotoxin-Pme2a, two novel peptides...

  • Review
  • Open Access
20 Citations
6,241 Views
19 Pages

The Biological and Biophysical Properties of the Spider Peptide Gomesin

  • John D. Tanner,
  • Evelyne Deplazes and
  • Ricardo L. Mancera

This review summarises the current knowledge of Gomesin (Gm), an 18-residue long, cationic anti-microbial peptide originally isolated from the haemocytes of the Brazilian tarantula Acanthoscurria gomesiana. The peptide shows potent cytotoxic activity...

  • Article
  • Open Access
8 Citations
3,720 Views
21 Pages

7 November 2021

The automatic localization of software faults plays a critical role in assisting software professionals in fixing problems quickly. Despite various existing models for fault tolerance based on static features, localization is still challenging. By co...

  • Article
  • Open Access
21 Citations
14,208 Views
14 Pages

21 July 2019

Pain is a natural bioassay for detecting and quantifying biological activities of venoms. The painfulness of stings delivered by ants, wasps, and bees can be easily measured in the field or lab using the stinging insect pain scale that rates the pain...

  • Article
  • Open Access
2,050 Views
19 Pages

4 September 2025

Lightweight aggregate concrete is known for its potential to decrease overall building load and cost. Aero Aggregates’ Aerolite is a foamed glass aggregate (FGA) available in seven different sizes which has the potential to replace normal weigh...

  • Article
  • Open Access
7 Citations
3,632 Views
14 Pages

Chemical Synthesis and NMR Solution Structure of Conotoxin GXIA from Conus geographus

  • David A. Armstrong,
  • Ai-Hua Jin,
  • Nayara Braga Emidio,
  • Richard J. Lewis,
  • Paul F. Alewood and
  • K. Johan Rosengren

26 January 2021

Conotoxins are disulfide-rich peptides found in the venom of cone snails. Due to their exquisite potency and high selectivity for a wide range of voltage and ligand gated ion channels they are attractive drug leads in neuropharmacology. Recently, con...

  • Article
  • Open Access
7 Citations
7,387 Views
21 Pages

29 April 2021

Many animal species can produce venom for defense, predation, and competition. The venom usually contains diverse peptide and protein toxins, including neurotoxins, proteolytic enzymes, protease inhibitors, and allergens. Some drugs for cancer, neuro...

  • Article
  • Open Access
23 Citations
6,206 Views
21 Pages

Chemical Synthesis, Proper Folding, Nav Channel Selectivity Profile and Analgesic Properties of the Spider Peptide Phlotoxin 1

  • Sébastien Nicolas,
  • Claude Zoukimian,
  • Frank Bosmans,
  • Jérôme Montnach,
  • Sylvie Diochot,
  • Eva Cuypers,
  • Stephan De Waard,
  • Rémy Béroud,
  • Dietrich Mebs and
  • Michel De Waard
  • + 4 authors

21 June 2019

Phlotoxin-1 (PhlTx1) is a peptide previously identified in tarantula venom (Phlogius species) that belongs to the inhibitory cysteine-knot (ICK) toxin family. Like many ICK-based spider toxins, the synthesis of PhlTx1 appears particularly challenging...

  • Review
  • Open Access
27 Citations
6,922 Views
40 Pages

Mechanisms of Action of the Peptide Toxins Targeting Human and Rodent Acid-Sensing Ion Channels and Relevance to Their In Vivo Analgesic Effects

  • Clément Verkest,
  • Miguel Salinas,
  • Sylvie Diochot,
  • Emmanuel Deval,
  • Eric Lingueglia and
  • Anne Baron

17 October 2022

Acid-sensing ion channels (ASICs) are voltage-independent H+-gated cation channels largely expressed in the nervous system of rodents and humans. At least six isoforms (ASIC1a, 1b, 2a, 2b, 3 and 4) associate into homotrimers or heterotrimers to form...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,092 Views
14 Pages

How Happy Do These Animals Look? Exploring Factors Influencing Children’s Perceptions of Animal Welfare at the Zoo

  • María Ignacia Vera-Concha,
  • Manuel Rojas,
  • Daniel Cartes,
  • Maria Camila Ceballos,
  • Mari Carmen Villarroel,
  • Martín Pérez,
  • Vladimir Venegas,
  • Cristóbal Briceño,
  • Javiera Calderón-Amor and
  • Daniela Luna

29 May 2025

Understanding how children and adolescents perceive zoo animal welfare provides insights into public views on captive conditions. This study used a mixed-methods approach to investigate these perceptions. A total of 254 participants (aged 7–18)...

  • Article
  • Open Access
1 Citations
576 Views
16 Pages

Complete Mitochondrial Genome Sequencing of Brachypelma albiceps and Comparative Codon Usage Bias Analysis Across Seven Mygalomorphae Species

  • Qingbin Zhan,
  • Yin Tang,
  • Yang Zhao,
  • Senlin Hou,
  • Yalin Huang,
  • Xiaoyan Zhao,
  • Yunxia Chen and
  • Xiaoming Xue

20 December 2025

Tarantulas (family Theraphosidae) are ecologically significant invertebrate predators in terrestrial ecosystems, but many species face threats from habitat fragmentation and unsustainable collection for the international pet trade. Brachypelma albice...

  • Article
  • Open Access
70 Citations
12,576 Views
16 Pages

A Proteomics and Transcriptomics Investigation of the Venom from the Barychelid Spider Trittame loki (Brush-Foot Trapdoor)

  • Eivind A. B. Undheim,
  • Kartik Sunagar,
  • Volker Herzig,
  • Laurence Kely,
  • Dolyce H. W. Low,
  • Timothy N. W. Jackson,
  • Alun Jones,
  • Nyoman Kurniawan,
  • Glenn F. King and
  • Bryan G. Fry
  • + 3 authors

13 December 2013

Although known for their potent venom and ability to prey upon both invertebrate and vertebrate species, the Barychelidae spider family has been entirely neglected by toxinologists. In striking contrast, the sister family Theraphosidae (commonly know...

  • Feature Paper
  • Article
  • Open Access
11 Citations
11,424 Views
18 Pages

Insect-Active Toxins with Promiscuous Pharmacology from the African Theraphosid Spider Monocentropus balfouri

  • Jennifer J. Smith,
  • Volker Herzig,
  • Maria P. Ikonomopoulou,
  • Sławomir Dziemborowicz,
  • Frank Bosmans,
  • Graham M. Nicholson and
  • Glenn F. King

5 May 2017

Many chemical insecticides are becoming less efficacious due to rising resistance in pest species, which has created much interest in the development of new, eco-friendly bioinsecticides. Since insects are the primary prey of most spiders, their veno...

  • Article
  • Open Access
1 Citations
1,800 Views
14 Pages

Natural Gomesin-like Peptides with More Selective Antifungal Activities

  • Ilia A. Bolosov,
  • Ekaterina I. Finkina,
  • Ivan V. Bogdanov,
  • Victoria N. Safronova,
  • Pavel V. Panteleev and
  • Tatiana V. Ovchinnikova

Background: Antimicrobial peptides are generally considered promising drug candidates for combating resistant bacterial infections. However, the selectivity of their action may vary significantly. Natural gomesin, isolated from haemocytes of the tara...

  • Correction
  • Open Access
1,011 Views
3 Pages

Correction: Richards et al. Indian Ornamental Tarantula (Poecilotheria regalis) Venom Affects Myoblast Function and Causes Skeletal Muscle Damage. Cells 2023, 12, 2074

  • Nicholas J. Richards,
  • Ali Alqallaf,
  • Robert D. Mitchell,
  • Andrew Parnell,
  • Husain Bin Haidar,
  • José R. Almeida,
  • Jarred Williams,
  • Pradeep Vijayakumar,
  • Adedoyin Balogun and
  • Sakthivel Vaiyapuri
  • + 3 authors

27 January 2025

In the original publication [...]