# Severo Ochoa

> Spanish physician

**Wikidata**: [Q233957](https://www.wikidata.org/wiki/Q233957)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Severo_Ochoa)  
**Source**: https://4ort.xyz/entity/severo-ochoa

## Summary
Severo Ochoa was a Spanish-American physician and biochemist who made groundbreaking contributions to the understanding of genetic code and RNA synthesis. He is best known for co-discovering the mechanism of RNA synthesis, a discovery that earned him the Nobel Prize in Physiology or Medicine in 1959. Throughout his career, he held prestigious academic positions in both Spain and the United States, including roles at New York University and the University of Washington.

## Biography
- **Born:** September 24, 1905
- **Nationality:** Spanish and American (dual citizenship)
- **Education:** Educated at Universidad Central (Madrid), Heidelberg University, and the University of Washington.
- **Known for:** The enzymatic synthesis of RNA and the elucidation of the genetic code.
- **Employer(s):** New York University (Grossman School of Medicine), University of Washington, Severo Ochoa Molecular Biology Center (honorary/naming), Complutense University of Madrid (via Universidad Central lineage).
- **Field(s):** Biochemistry, Molecular Biology, Medicine.

## Contributions
Severo Ochoa's scientific work fundamentally altered the understanding of how genetic information is stored and expressed.
- **Enzymatic Synthesis of RNA:** In 1955, Ochoa and his colleagues discovered an enzyme (polynucleotide phosphorylase) that could synthesize RNA in a test tube. This was the first time RNA was synthesized artificially, proving that RNA could be created without a DNA template in specific conditions, which was crucial for cracking the genetic code.
- **Nobel Prize in Physiology or Medicine (1959):** He shared this award with Arthur Kornberg for their discoveries concerning the mechanisms in the biological synthesis of ribonucleic acid and deoxyribonucleic acid.
- **Genetic Code Deciphering:** His work provided the necessary tools for Marshall Nirenberg and others to decipher the genetic code, determining how sequences of nucleotides translate into amino acids.
- **Establishment of Research Centers:** His legacy led to the founding of the Severo Ochoa Molecular Biology Center (CBMSO) in Madrid in 1975, a joint initiative between the Spanish National Research Council (CSIC) and the Autonomous University of Madrid, dedicated to molecular biology research.

## FAQs
**What was Severo Ochoa's primary scientific breakthrough?**
Ochoa discovered the enzyme polynucleotide phosphorylase, which allowed for the artificial synthesis of RNA. This breakthrough provided the essential tools needed to decipher the genetic code and understand how proteins are synthesized from genetic instructions.

**Which universities did Severo Ochoa work for during his career?**
He held significant positions at the University of Washington and New York University, specifically at the Grossman School of Medicine. His academic journey also included education at Heidelberg University and Universidad Central in Madrid.

**What major awards did Severo Ochoa receive?**
His most prestigious honor was the 1959 Nobel Prize in Physiology or Medicine. He also received the National Medal of Science, the Grand Prix Charles-Leopold Mayer, and numerous honorary doctorates from institutions including the University of the Basque Country, University of Alicante, University of Miami, and several Spanish universities like Valladolid, Oviedo, and Granada.

**How is Severo Ochoa remembered in Spain today?**
He is honored through the Severo Ochoa Molecular Biology Center in Madrid, established in 1975 and named in his honor. Additionally, he is recognized as a pivotal figure in Spanish science, with his legacy celebrated through various honorary degrees and his status as a dual Spanish-American citizen who bridged scientific communities.

## Why They Matter
Severo Ochoa's work laid the foundation for modern molecular biology and genetics. Before his discovery of RNA synthesis, the mechanisms of how genetic information was transferred and expressed were poorly understood. By creating a method to synthesize RNA artificially, he enabled the subsequent deciphering of the genetic code, which is the basis for all modern biotechnology, genetic engineering, and our understanding of life at the molecular level. His career also symbolized the international nature of science, as he successfully bridged the scientific communities of Spain and the United States, fostering collaboration and advancing research in both nations. Without his contributions, the rapid advancements in medicine, agriculture, and biotechnology seen in the latter half of the 20th century would have been significantly delayed.

## Notable For
- Winning the 1959 Nobel Prize in Physiology or Medicine for the discovery of the mechanisms in the biological synthesis of RNA.
- Being a dual citizen of Spain and the United States, representing a bridge between European and American science.
- Discovering polynucleotide phosphorylase, the enzyme responsible for the first artificial synthesis of RNA.
- Receiving the National Medal of Science, the highest scientific honor in the United States.
- Being awarded the Grand Prix Charles-Leopold Mayer by the French Academy of Sciences.
- Holding honorary doctorates from over a dozen prestigious universities, including the University of Miami, University of the Basque Country, and multiple Spanish institutions.
- Having the Severo Ochoa Molecular Biology Center (CBMSO) in Madrid named after him.
- Serving as a professor at New York University and the University of Washington.
- Being a member of numerous prestigious academies, including the Royal Society, the German Academy of Sciences Leopoldina, the Pontifical Academy of Sciences, and the National Academy of Sciences.

## Body

### Early Life and Education
Severo Ochoa was born on September 24, 1905. He was a Spanish physician by training who later became a renowned biochemist. His education began in Spain at Universidad Central in Madrid, which was a major higher education institution from 1822 to 1943 and a predecessor to the Complutense University of Madrid. He furthered his studies in Europe, attending Heidelberg University in Germany. His academic foundation was solidified by his medical training, which provided the basis for his later work in biochemistry and molecular biology.

### Career and Academic Affiliations
Ochoa's professional life spanned several decades and multiple continents. He was affiliated with the University of Washington, where he conducted significant research. Later, he moved to New York City to work at New York University, specifically at the Grossman School of Medicine, which was founded in 1841. His work at these institutions allowed him to collaborate with leading scientists of his time. He was also connected to the Severo Ochoa Molecular Biology Center in Madrid, which was established in 1975 as a joint venture between the Spanish National Research Council (CSIC) and the Autonomous University of Madrid. Although the center was named after him after his major achievements, it stands as a testament to his enduring influence on Spanish science.

### Scientific Discoveries and Research
Ochoa's most significant contribution was in the field of biochemistry, specifically the study of chemical processes in living organisms. He focused on the molecular basis of biological activity, a core aspect of molecular biology. His research led to the discovery of the enzyme that synthesizes RNA, a process known as enzymatic synthesis. This discovery was pivotal because it allowed scientists to create RNA in a laboratory setting, which was essential for understanding how genetic information is translated into proteins. His work bridged the gap between chemistry and biology, providing insights into the structure and function of biological molecules like proteins and nucleic acids.

### Awards and Recognition
Throughout his career, Ochoa received numerous accolades for his contributions to science. In 1959, he was awarded the Nobel Prize in Physiology or Medicine, shared with Arthur Kornberg, for their discoveries concerning the mechanisms in the biological synthesis of ribonucleic acid and deoxyribonucleic acid. In the United States, he was honored with the National Medal of Science, established in 1963. He also received the Grand Prix Charles-Leopold Mayer, an award established in 1961. His recognition extended to the academic community, where he was granted honorary doctorates from a wide array of institutions. These included the University of the Basque Country, University of Alicante, University of Valladolid, University of Las Palmas, Gran Canaria, University of Oviedo, University of Santiago de Compostela, University of Granada, University of Valencia, University of Malaga, and the University of Miami.

### Memberships and Institutional Roles
Ochoa was a member of many prestigious scientific organizations. He was affiliated with the Royal Society, an English learned society for science founded in 1660. He was also a member of the German Academy of Sciences Leopoldina, the national academy of Germany, and the Academy of Sciences of the USSR. His international standing was further evidenced by his membership in the Pontifical Academy of Sciences, the American Academy of Arts and Sciences, the Russian Academy of Sciences, the Royal National Academy of Medicine in Spain, the National Academy of Sciences in the US, the Polish Academy of Sciences, and the American Philosophical Society. These memberships highlight his global impact and the respect he commanded across different scientific communities.

### Legacy and Impact
The legacy of Severo Ochoa is preserved in the institutions and fields he helped shape. The Severo Ochoa Molecular Biology Center in Madrid continues to conduct research in molecular biology, carrying forward the work he pioneered. His discoveries in RNA synthesis and the genetic code have had a profound impact on medicine, biotechnology, and our understanding of life itself. The field of biochemistry, which he helped define and advance, continues to drive innovation in drug discovery, genetic engineering, and personalized medicine. Ochoa's life and work serve as an inspiration for scientists around the world, demonstrating the power of curiosity and the importance of international collaboration in scientific progress.

## References

1. Great Soviet Encyclopedia (1969–1978)
2. BnF authorities
3. [Source](https://www.abc.es/espana/andalucia/malaga/20151025/sevi-severo-ochoa-andalucia-201510241511.html)
4. [The Nobel Prize in Physiology or Medicine 1959. Nobel Foundation](https://www.nobelprize.org/prizes/medicine/1959/summary/)
5. [Table showing prize amounts. Nobel Foundation. 2019](https://www.nobelprize.org/uploads/2019/04/prize-amounts-2020.pdf)
6. [Severo Ochoa, doctor 'honoris causa' por la universidad de Valladolid](https://elpais.com/diario/1988/03/12/sociedad/574124405_850215.html)
7. [Source](http://www.uva.es/export/sites/uva/1.lauva/1.15.doctoreshonoriscausa/index.html)
8. [Source](https://www.ulpgc.es/sites/default/files/ArchivosULPGC/noticia/2017/Jun/historico_dhc_def.pdf)
9. [Source](http://www.usc.es/es/info_xeral/honoris/)
10. [Source](http://archivo.ugr.es/pages/trabajosdocumentos/honoriscausa)
11. [Source](https://www.uv.es/uvweb/rectorado/es/premios-distinciones/doctores-honoris-causa/doctores-honoris-causa-siglo-xx/fecha-investidura/acto-investidura-doctor-honoris-causa-del-excm-sr-dr-severo-ochoa-albornoz-1285872205498/Honoris.html?id=1285878758731)
12. [Source](https://www.uma.es/facultad-de-ciencias/info/74494/doctores-honoris-causa/)
13. Complete List of Royal Society Fellows 1660-2007
14. [Source](https://www.jgpa.es/documents/11156/92932/N%C2%BA%202.+D%C3%ADa+de+Asturias+%281980-2016%29/215e3b42-06e2-4817-a04d-9aca073f23c1)
15. [Source](https://commencement.miami.edu/about-us/archives/honorary-degree-recipients/index.html)
16. International Standard Name Identifier
17. Virtual International Authority File
18. CiNii Research
19. www.pas.va
20. Encyclopædia Britannica Online
21. SNAC
22. Find a Grave
23. Brockhaus Enzyklopädie
24. Gran Enciclopèdia Catalana
25. Spanish Biographical Dictionary
26. Munzinger Personen
27. Freebase Data Dumps. 2013
28. [Source](https://openlibrary.org/authors/OL730513A/Severo_Ochoa)
29. [Source](https://diario16.com/juan-negrin-democrata-socialista-republicano/)
30. NNDB
31. nobelprize.org
32. Autoritats UB
33. Faceted Application of Subject Terminology
34. [Source](http://bigenc.ru/biology/text/2700712)
35. [Source](http://www.leopoldina.org/de/mitglieder/mitgliederverzeichnis/member/4426/)
36. National Library of Israel Names and Subjects Authority File