Homology-Driven Proteomics of Dinoflagellates with Unsequenced Genomes Using MALDI-TOF/TOF and Automated De Novo Sequencing
2011

Identifying Proteins in Dinoflagellates Using Advanced Techniques

Sample size: 220 publication 10 minutes Evidence: high

Author Information

Author(s): Wang Da-Zhi, Li Cheng, Xie Zhang-Xian, Dong Hong-Po, Lin Lin, Hua-Sheng Lin

Primary Institution: State Key Laboratory of Marine Environmental Science/Environmental Science Research Center, Xiamen University

Hypothesis

Can a multilayered approach using MALDI-TOF/TOF and automated de novo sequencing effectively identify proteins in dinoflagellates with unsequenced genomes?

Conclusion

The study successfully identified 158 unique proteins from Alexandrium tamarense, contributing to a preliminary protein database for future physiological studies.

Supporting Evidence

  • 216 protein spots were analyzed, leading to the identification of 158 unique proteins.
  • The methodology developed is the first automated approach for identifying proteins from unsequenced dinoflagellate databases.
  • Proteins identified are involved in various physiological activities, contributing to our understanding of harmful algal blooms.
  • The study provides a preliminary protein database for future research on dinoflagellates.

Takeaway

The researchers figured out how to find proteins in tiny ocean plants called dinoflagellates, even when we don't have their DNA sequenced yet.

Methodology

The study used a multilayered approach combining MALDI-TOF/TOF mass spectrometry, MASCOT database searching, and de novo sequencing to identify proteins.

Potential Biases

Potential bias in protein identification due to reliance on existing databases and the limitations of de novo sequencing.

Limitations

The study primarily focused on one species of dinoflagellate, which may limit the generalizability of the findings to other species.

Participant Demographics

The study focused on the dinoflagellate species Alexandrium tamarense.

Statistical Information

P-Value

p<0.05

Confidence Interval

C.I. ≥ 95%

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1155/2011/471020

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