Crystal Structure of Luffaculin 1, a New Ribosome-Inactivating Protein
Author Information
Author(s): Hou Xiaomin, Chen Minghuang, Chen Liqing, Meehan Edward J, Xie Jieming, Huang Mingdong
Primary Institution: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences
Hypothesis
Can the X-ray sequencing method effectively derive the amino-acid sequence of luffaculin 1?
Conclusion
The X-ray sequencing method can effectively derive protein sequence information, achieving 94% assignment confidence for luffaculin 1.
Supporting Evidence
- The crystal structure of luffaculin 1 was determined at 1.4 Å resolution.
- Using chemical environment evaluation, 86% of the residues were assigned with confidence.
- The study demonstrated that the X-ray sequencing method can effectively derive protein sequences.
Takeaway
Scientists figured out the building blocks of a new protein called luffaculin 1 using a special imaging technique, and they found that it can help stop cancer cells from growing.
Methodology
The study used high-resolution X-ray crystallography to determine the crystal structure and amino-acid sequence of luffaculin 1.
Limitations
Some residues could not be assigned due to weak electron density or lack of conservation among ribosome-inactivating proteins.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website