Related Experiment Videos
A retinoic acid-binding protein from chick embryo skin
Cancer Research
|February 1, 1976
Summary
Researchers identified a specific retinoic acid-binding protein in chick embryo skin. This protein may mediate retinoic acid
Area of Science:
- Biochemistry
- Developmental Biology
- Molecular Biology
Background:
- Retinoic acid is known to reverse metaplastic changes induced by chemical carcinogens.
- The precise molecular mechanisms underlying retinoic acid's biological effects require further elucidation.
Purpose of the Study:
- To detect and characterize a specific retinoic acid-binding protein from chick embryo metatarsal skin.
- To investigate the binding specificity of this protein with retinoic acid and its analogs.
Main Methods:
- Biochemical isolation and characterization of the retinoic acid-binding protein.
- Competition binding assays using radiolabeled retinoic acid and various unlabeled ligands.
Main Results:
- A specific retinoic acid-binding protein was isolated with an S20 value of 2 and an isoelectric pH of 4.6.
- The protein selectively binds retinoic acid and analogs possessing a free carboxyl group.
- A cyclopentenyl analog demonstrated higher binding affinity than retinoic acid itself.
Conclusions:
- A novel retinoic acid-binding protein from chick embryo metatarsal skin has been identified.
- The binding specificity suggests a role for this protein in mediating retinoic acid's biological activities, such as the reversal of keratinization.