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Expression pattern in a modified equalized kidney cDNA library of hypertensive rat
T H Chern1, F T Chiang, K D Wu
1Institute of Clinical Medicine, National Yang-Ming University, School of Medicine, Taipei, Taiwan.
Nephron
|June 27, 2000
Summary
This study developed a modified kidney cDNA library from spontaneously hypertensive rats, enabling easier isolation of rare and novel genes. This approach aids in the molecular study of hypertension and renal pathophysiology.
Area of Science:
- Molecular Biology
- Genomics
- Cardiovascular Research
Background:
- Investigating genes with critical functions, especially rare ones, requires efficient cloning methods.
- A modified equalized kidney cDNA library offers a potential solution for isolating such genes.
Purpose of the Study:
- To synthesize a modified equalized kidney cDNA library from spontaneously hypertensive rats.
- To identify and characterize rare, novel, and tissue-specific genes within this library.
Main Methods:
- A modified equalization method was used to create the kidney cDNA library.
- Polymerase chain reaction (PCR) amplification, sequencing, and database comparisons were employed.
- Northern blot analysis and comparison with a mouse renal proximal tubule library were performed.
Main Results:
- 336 cDNA clones yielded 323 transcript species, with 77 known genes identified.
- Rarely expressed, kidney-specific, and testis-specific genes were identified.
- Two novel genes were cloned: one encoding a zinc-finger protein and another of unknown function.
Conclusions:
- The modified library facilitates the isolation of rare or novel genes.
- This resource is valuable for studying the molecular basis of hypertension and renal pathophysiology.