Nobel Prize 1958: Frederick Sanger's Protein Structure Work

The question asks to identify the biochemist who received the Nobel Prize in 1958 for their research on the structure of proteins, specifically mentioning insulin. Let's examine the contributions of the individuals listed in the options.

Analyzing the Options

• Rosalind Franklin: While a groundbreaking scientist, Rosalind Franklin is primarily known for her crucial contributions to understanding the molecular structures of DNA, RNA, viruses, coal, and graphite. Her work on DNA structure was vital, but she did not receive the 1958 Nobel Prize for protein structure.
• Frederick Sanger: Frederick Sanger is renowned for his pioneering work on the structure of proteins. He determined the complete amino acid sequence of insulin, a complex protein. This monumental achievement earned him the Nobel Prize in Chemistry in 1958. He later won a second Nobel Prize in 1980 for his work on determining base sequences in nucleic acids. His 1958 award directly matches the question's criteria.
• Carl Neuberg: Often called the "father of biochemistry," Carl Neuberg made significant contributions to understanding metabolism, particularly carbohydrate metabolism. He also worked on enzyme kinetics and protein chemistry, but he is not associated with the 1958 Nobel Prize for protein structure determination.
• Eduard Buchner: Eduard Buchner received the Nobel Prize in Chemistry in 1907 for his research on cell-free fermentation. His work demonstrated that enzymes, not living yeast cells, caused fermentation. This is distinct from the work on protein structure described in the question.

Frederick Sanger's Key Contribution

Frederick Sanger's determination of the structure of insulin was a landmark achievement in biochemistry. Using techniques he developed, he was able to sequence the amino acids in insulin. This work:

• Proved that proteins have specific, defined sequences.
• Laid the foundation for understanding protein function based on structure.
• Opened the door for sequencing other complex biological molecules.

His success in sequencing insulin was a major step in understanding the building blocks of life and directly led to his receiving the 1958 Nobel Prize.

Conclusion

Based on the analysis, Frederick Sanger is the biochemist who won the Nobel Prize in 1958 for his pivotal work on the structure of proteins, particularly insulin.