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Updated: Jul 26, 2026

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A Rapid High-throughput Method for Mapping Ribonucleoproteins (RNPs) on Human pre-mRNA
Published on: December 2, 2009
The immunological characterization of several human ribonucleases by using primary binding tests
The Biochemical Journal
|June 1, 1977
Summary
Immunological assays reveal two distinct groups of human ribonucleases (RNAases). Human plasma and pancreas RNAases show a slight antigenic difference, while liver and spleen RNAases are immunologically identical.
Area of Science:
- Biochemistry
- Immunology
- Molecular Biology
Background:
- Ribonucleases (RNAases) are enzymes crucial for RNA metabolism.
- Human tissues express various RNAase isoforms with potentially distinct immunological properties.
Purpose of the Study:
- To immunologically characterize RNAases purified from human plasma, pancreas, liver, and spleen.
- To compare human RNAases with bovine pancreatic RNAase (RNAase A).
Main Methods:
- Immunodiffusion assays
- Primary binding tests
- Antigenic cross-reactivity analysis
Main Results:
- Human RNAases segregated into two immunological groups: plasma/pancreas and liver/spleen.
- No cross-reactivity was observed between these two groups.
- A slight antigenic difference was detected between human plasma and pancreas RNAases.
- Human liver and spleen RNAases were immunologically identical.
Conclusions:
- Human RNAases exhibit distinct immunological profiles based on tissue origin.
- The observed antigenic differences may correlate with functional or structural variations in RNAase enzymes.

