gistfile1.cs

// Written for .NET 3.5.
[DataContract]
public class JSONObject
{
    /// <summary>
    /// This is how you can escape a keyword as an identifier.
    /// </summary>
    [DataMember]
    public string @public
    {
        get; set;
    }

    /// <summary>
    /// If you don't want to escape it and declare it instead.
    /// </summary>
    [DataMember(Name = "public")]
    public string Public
    {
        get; set;
    }
}