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Venomics

Adapted from Wikipedia · Discoverer experience

A scientific diagram showing steps for studying compounds in venom.

Venomics is the study of proteins found in venom, a poisonous liquid made by some animals. Venom is usually used by animals to hurt or kill other animals that attack them or that they want to eat. Scientists who study venomics look at the tiny building blocks of venom to learn more about how it works and how it affects other creatures. This helps us understand more about animal biology and can even lead to new ways to treat diseases or create medicines. By studying venom, researchers can discover new proteins that might be useful for helping people.

Background

Main article: Venom

Venom is made in special glands and can be injected using fangs or a stinger. It works by disrupting the normal functions of the animal that gets stung or bitten. This helps the animal catch its food or protect itself from danger. Many different animals have developed their own unique venoms and ways to deliver them.

Even though venom can be dangerous, scientists study it to find new medicines. Some important drugs come from snake venoms, and many more are being tested for future use.

The Creation and History of Venomics Techniques

Venom is made of many different proteins, and each one can look quite different. Some parts of venom are very simple, while others are more complex. Animals like spiders and snakes have venoms that look different from each other. For example, most of a funnel-web spider's venom is made of small proteins, while snake venom has more complicated proteins.

(Left) The amino acid structure, (Middle) diagram and (Right) Stereodiagram of k-Bungarotoxin.

Because venom is so varied, scientists needed a new way to study it. This led to the creation of venomics, a field that combines ideas from genomics, transcriptomics, proteomics, and bioinformatics. Venomics began in the late 1900s when new technologies started to become popular. The growth of venomics depended on improvements in these technologies. Early research focused on the toxins in snake venom, especially those that affect the nervous system. Over time, scientists learned more about the structure of these toxins, such as the three-finger protein found in many snake venoms.

The Current State and Methodology of Venomics

A typical workflow for the isolation and screening of compounds found in venom.

Venomics is the study of proteins in animal venom, which is a toxic substance animals use to defend themselves or catch prey. Scientists have made big steps in understanding these proteins using modern tools. They have created big lists of known venoms and shared them online so everyone can learn from them. One big project called the ‘Animal toxin annotation project’ has listed more than 6,500 different toxins from many animals. Even with today’s technology, it still takes a lot of time and work to study all the tiny parts that make up a venom, especially because some animals can change their venom depending on why they use it.

To study venom, scientists follow a few important steps: collecting the venom, separating its parts, identifying what those parts are, and understanding them better. One simple way to collect venom is by letting an animal, like a snake, bite into a container. For smaller animals like insects, scientists might use electricity to get the venom. After collecting the venom, scientists use special tools to separate the tiny parts inside. They look at these parts to figure out what they are made of and how they work. This helps scientists learn how venom affects living things and how it might be used to create new medicines or better treatments.

The Future Possibilities of Venomics

Venomics, the study of proteins in animal venom, keeps getting better with new technology like next generation sequencing and nuclear magnetic resonance spectroscopy. Scientists think venomics will keep improving in the future. One big idea is using molecules from venom to make special medicines. The first example of this happened in the early 1970s when Captopril was discovered. This medicine, made from venom, helps people with high blood pressure by blocking ACE.

Right now, six medicines from venom have been approved, and ten more are being tested. Some places, like south and southeast Asia and parts of Africa, still struggle with animals that have venom. Snakes, especially from the groups Elapidae and Viperidae, cause many problems. Making medicines for these venoms is hard because it needs special care and storage, and sometimes doesn’t work very well. But new ways using special technology could make these medicines safer, cheaper, and faster to produce.

Scientists are also looking into better ways to treat venom bites using special antibodies and databases. There’s also hope that venom could help farms by creating natural bug-killing sprays from spider venom. These could be safer for other animals and plants compared to older bug-killing sprays like DDT and Neonicotinoids.

Treatment forMode of action/ Target siteAnimal of originDevelopment stage
CaptoprilHypertension/ Congestive heart failureACE inhibitorPit viperApproved
EptifibatideAntiplatelet drugCirculatory systemPygmy rattlesnakeApproved
TirofibanAntiplatelet drugCirculatory systemRussell's viperApproved
LepirudinAnticoagulantThrombin inhibitorSaw-scaled viperApproved
BivalirudinAnticoagulantThrombin inhibitorMedicinal leechApproved
ZiconotideChronic painVoltage-gated calcium channelsCone snailApproved
ExenatideType 2 diabetesGLP-1 receptorGila monsterApproved
ChlorotoxinTumour imagingCl channels/
Glioma cells
Deathstalker scorpionClinical
development
Stichodactyla (ShK)Autoimmune disease(s)Voltage-gated potassium channelsCaribbean sea anemoneClinical
development
SOR-C13CancerTRPV6N. short-tailed shrewClinical
development
HsTX1 [R14A]Autoimmune disease(s)Voltage-gated potassium channelsGiant Forest scorpionPreclinical
development
NaV1.7 blockersPainNaV1.7Several tarantula species (Thrixopelma pruriens, Selenocosmia huwena, Pamphobeteus nigricolor)Preclinical
development
α-conotoxin RgIAPainnACh receptorsCone snailPreclinical
development
α-Conotoxin Vc1.1PainnAChRsCone snailDiscontinued
χ-Conotoxin MrIAPainNorepinephrine transporter inhibitorCone snailDiscontinued
Contulakin-GPainNeurotensin receptorsCone snailDiscontinued
Conantokin-GPain/EpilepsyNMDA receptorsCone snail
(Conus geographus)
Discontinued
CenderitideCardiovascular disease(s)ANP receptor BModified Green mamba venomDiscontinued

Images

Scientific diagram showing different methods of proteomic analysis and how they compare to genomics and transcriptomics.
Scientific illustration showing methods used to study snake venom from Bothropoides pauloensis.

Related articles

This article is a child-friendly adaptation of the Wikipedia article on Venomics, available under CC BY-SA 4.0.

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