Results for “International Covenant On Civil And Political Rights”

The Ancient Sumerian Epic of Gilgamesh

The Bhagavad Gita**: An Ancient Indian Text

The Kybalion

Chamber music

**Chamber Music** **Chamber music** is a form of classical music that is composed for a small group of instruments—traditionally a group that could fit in a palace chamber or a large room. Most bro

Essay film

**Essay Film** The **essay film** is a genre of filmmaking that combines elements of documentary, fiction, and experimental cinema to create a unique and personal cinematic experience. It often featu

Buddhist Art Traditions

**Buddhist Art Traditions** **Buddhist art traditions** are a diverse and rich array of artistic expressions that have evolved over two millennia, reflecting the spiritual, philosophical, and cultura

Pop Art Movement

**Pop Art Movement** The **Pop Art Movement** was a prominent art movement that emerged in the 1950s and flourished in the 1960s, characterized by its bold, colorful, and often ironic use of popular

The British Invasion

**The British Invasion** The **British Invasion** was a cultural phenomenon of the mid-1960s, when rock and pop music acts from the United Kingdom and other aspects of British culture became popular

The Second Viennese School

**The Second Viennese School** The Second Viennese School was a group of composers who developed a unique style of music in the early 20th century, characterized by atonality, serialism, and a focus

The **Surrealist Film Movement

**The Surrealist Film Movement** The Surrealist Film Movement was a cinematic movement that emerged in the 1920s and flourished until the 1960s, characterized by the use of unconventional narrative t

Salvador Dali: The Surrealist Master of Dreamscapes

**Salvador Dali** **Salvador Dali** was a renowned Spanish surrealist artist, born on May 11, 1904, in Figueres, Catalonia, Spain. He is widely regarded as one of the most iconic and influential arti

Hieronymus Bosch's The Garden of Earthly Delights

**The Garden of Earthly Delights** **The Garden of Earthly Delights** is a triptych painting by the Netherlandish master Hieronymus Bosch, created between 1490 and 1510. This enigmatic and intricate

The Italian Neorealist Movement

**The Italian Neorealist Movement** The Italian Neorealist Movement was a cinematic and artistic movement that emerged in Italy after World War II, characterized by a focus on social realism, locatio

Design Thinking

**Design Thinking** Design thinking is a problem-solving approach that involves understanding the needs and desires of users, empathizing with them, and creating innovative solutions to meet those ne

David Bowie: Music Icon

**David Bowie: Music Icon** **David Bowie** was a British singer, songwriter, actor, and fashion icon who played a significant role in shaping the music industry and popular culture of the 20th centu

Jane Goodall

Dame Jane Goodall revolutionized primatology through her 60-year field study of wild chimpanzees, proving that humans are not the only species to make tools, show compassion, and wage war.

CRISPR

** CRISPR is a naturally occurring, bacterial‑derived immune system that has been repurposed into a precise, programmable gene‑editing platform, reshaping biology, medicine, and biotechnology worldwide. **CONTENT:** ## Overview The acronym **CRISPR** stands for *Clustered Regularly Interspaced Short Palindromic Repeats*, a family of DNA motifs that pepper the genomes of roughly **50 % of sequenced bacteria** and an astonishing **≈ 90 % of sequenced archaea**. Each CRISPR locus consists of short, repetitive DNA sequences (the “repeats”) interleaved with unique “spacer” fragments that are direct genetic souvenirs of past viral invasions. When a familiar bacteriophage returns, the CRISPR‑Cas (CRISPR‑associated) machinery transcribes these spacers into RNA guides, which then shepherd Cas nucleases to the matching viral DNA, cleaving it with lethal precision. In this way, prokaryotes wield a **heritable, adaptive immune system** that can be passed on to daughter cells, granting them a memory of past battles. The true scientific fireworks began when researchers realized that the same guide‑RNA logic could be hijacked to target any DNA sequence of interest. The **CRISPR‑Cas9** system, derived from *Streptococcus pyogenes*, became a molecular scalpel that can snip, insert, or replace genetic code in living cells with single‑base accuracy. Since its debut as a genome‑editing tool in **2012**, CRISPR has powered everything from disease‑model mice to potential cures for sickle‑cell anemia, and it now underpins a multibillion‑dollar biotech industry. ## Background & Origins The story starts in **1987**, when Japanese microbiologist **Yoshizumi Ishino** and colleagues, while sequencing the *E. coli* *iap* gene, stumbled upon an odd series of short repeats separated by unique sequences. At the time, the repeats were a curiosity, not a system. It wasn’t until **2002** that **Francisco Mojica** (University of Alicante, Spain) recognized these repeats as a widespread, conserved feature across many archaea and bacteria, coining the term **CRISPR**. In **2005**, a consortium led by **Rodolfo Barrangou** and **John van der Oost** identified the adjacent **Cas (CRISPR‑associated)** genes and proposed that the spacers were derived from invading phage DNA. The hypothesis of an adaptive immune role was spectacularly confirmed in **2007** when Barrangou’s team demonstrated that *Streptococcus thermophilus* strains acquiring new spacers became resistant to the corresponding phage. This experimental proof cemented CRISPR as a **prokaryotic defense system** and set the stage for its biotechnological exploitation. ## Major Achievements & Milestones **CRISPR‑Cas9 Genome Editing** (**2012**): *Jennifer Doudna* (UC Berkeley) and *Emmanuelle Charpentier* (Max Planck Institute) published the first in‑vitro demonstration that a single guide RNA could direct the Cas9 nuclease to cut any DNA sequence matching a 20‑base “protospacer”. This paper (Science, 2012) launched the modern gene‑editing era. **First Human Cell Editing** (**2013**): *Feng Zhang*’s group at the Broad Institute showed that CRISPR‑Cas9 could edit the genome of human embryonic kidney (HEK293) cells, proving the system’s versatility in mammalian cells. **First Clinical Trial** (**2015**): The U.S. National Institutes of Health initiated a Phase I trial (NCT02793856) using CRISPR‑edited T‑cells to treat refractory cancers, marking the transition from bench to bedside. **2020 Nobel Prize in Chemistry** (**2020**): Doudna and Charpentier received the Nobel for “the development of a method for genome editing”, the first Nobel awarded for a technology that originated in bacteria. ## Timeline - **1987**: Ishino et al. discover repetitive DNA elements in *E. coli* (the first CRISPR locus). - **2002**: Mojica coins the term **CRISPR** after comparative genomics across prokaryotes. - **2005**: Identification of **Cas** genes; proposal of an immune function. - **2007**: Barrangou et al. experimentally verify CRISPR‑mediated phage resistance in *S. thermophilus*. - **2012**: Doudna & Charpentier publish the programmable **CRISPR‑Cas9** system. - **2013**: Zhang’s team demonstrates editing in human cells. - **2015**: First human clinical trial using CRISPR‑edited immune cells. - **2020**: Nobel Prize awarded for CRISPR‑Cas9 development. ## Impact & Legacy CRISPR’s impact ripples across science, medicine, agriculture, and ethics. In research labs, it has **accelerated functional genomics**: a gene can be knocked out in a day rather than months, enabling rapid disease‑gene discovery. Clinically, CRISPR‑based therapies are already in late‑stage trials for sickle‑cell disease, β‑thalassemia, and Leber congenital amaurosis, promising **curative interventions** for previously intractable genetic disorders. Agriculturally, CRISPR has produced **drought‑tolerant wheat**, **fungus‑resistant mushrooms**, and **low‑gluten wheat**, illustrating its potential to address food security. Economically, the CRISPR market is projected to exceed **USD 15 billion** by 2027, spawning startups such as **Editas**, **CRISPR Therapeutics**, and **Intellia**. Beyond the lab, CRISPR has ignited global conversations about **gene drives**, **germline editing**, and the moral limits of “designer organisms”. The 2018 **International Summit on Human Gene Editing** placed CRISPR at the center of policy debates, underscoring that a tool born in bacteria now shapes the future of humanity. ## Records & Notable Facts - **Most ubiquitous adaptive immune system**: present in ~50 % of bacteria and ~90 % of archaea. - **Fastest adoption of a molecular tool**: from 2012 discovery to > 1 million scientific papers citing CRISPR by 2023. - **First “molecular scalpel”**: Doudna famously described CRISPR‑Cas9 as a “molecular scalpel” that can cut DNA with unprecedented precision. > “We have a tool that can edit the genome with unprecedented precision.” – **Jennifer Doudna**, 2012 **INFOBOX:** - Full Name: **Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)** - Born: **N/A** - Died: **N/A** - Age: **N/A** - Nationality: **N/A** - Occupation: **Adaptive immune system of prokaryotes; genome‑editing platform** - Active Years: **1987–present** - Known For: **Prokaryotic antiviral defense; CRISPR‑Cas9 genome editing** - Awards: **2020 Nobel Prize in Chemistry (Charpentier & Doudna) – for CRISPR‑Cas9** - Spouse: **N/A** - Children: **N/A** - Height: **N/A** - Net Worth: **N/A** - World Records: **Most widely used gene‑editing technology** - Championships: **N/A** **FACTS:** - Birth Date: **N/A** (type: date) - Birth Place: **N/A** (type: location) - Death Date: **N/A** (type: date) - Career Start: **1987** (type: year) - Peak Achievement: **CRISPR‑Cas9 genome editing (2012)** (type: achievement) - Career Earnings: **N/A** (type: statistic) - World Record: **Most cited molecular biology tool (over 1 million citations by 2023)** (type: record) - Famous Quote: **“We have a tool that can edit the genome with unprecedented precision.” – Jennifer Doudna** (type: quote) - Fun Fact: **The spacers in a CRISPR array are essentially a “genetic diary” of past viral attacks.** (type: trivia) - Legacy Stat: **≈ 90 % of sequenced archaea contain CRISPR loci** (type: statistic) **TAGS:** crispr, gene editing, biotechnology, microbiology, genetics, molecular biology, crispr-cas9, prokaryotes *Word count: ~860*

Biathlon

Biathlon is a winter sport that combines the endurance of cross-country skiing with the precision of rifle shooting, requiring athletes to navigate challenging trails and accurately shoot targets in a test of speed, agility, and marksmanship.

Jackson Pollock

Jackson Pollock was a pioneering American painter whose revolutionary “drip technique” redefined abstract expressionism and forever altered the language of modern art.

Stripe

Stripe is a global technology company that provides a suite of payment processing and financial infrastructure services for online businesses.