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Gamma-carboxyglutamic acid.

J P Burnier, M Borowski, B C Furie

    Molecular and Cellular Biochemistry
    |September 25, 1981
    PubMed
    Summary
    This summary is machine-generated.

    Gamma-carboxyglutamic acid, a unique amino acid, binds metals and is vital for blood clotting proteins and bone proteins. Its precise functions in protein structure and assembly are still being explored.

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    Area of Science:

    • Biochemistry
    • Molecular Biology
    • Protein Chemistry

    Background:

    • Gamma-carboxyglutamic acid (Gla) is a post-translationally modified amino acid.
    • Gla possesses unique metal-binding properties, influencing protein structure and function.
    • It is found in various proteins, including those involved in blood coagulation and bone metabolism.

    Purpose of the Study:

    • To summarize the properties and known occurrences of gamma-carboxyglutamic acid.
    • To discuss the synthesis and potential functions of Gla in proteins.
    • To highlight its role in protein conformation and molecular assembly.

    Main Methods:

    • Literature review of studies on gamma-carboxyglutamic acid.
    • Analysis of protein sequences and structures containing Gla.

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  • Biochemical assays investigating Gla's metal-binding capabilities.

    • Main Results:

    • Gla is synthesized via vitamin K-dependent carboxylation of glutamic acid residues.
    • Gla residues are crucial for the metal-binding activity of proteins like prothrombin and osteocalcin.
    • Gla facilitates intramolecular bridges for protein conformation and intermolecular bridges for membrane assembly.

    Conclusions:

    • Gamma-carboxyglutamic acid plays a critical role in the function of numerous proteins through its metal-binding capacity.
    • Its involvement in protein conformation and calcium-dependent assembly is essential for biological processes.
    • Further research is needed to fully elucidate the diverse functions of Gla.