KX Modifier - SPECIFIC REQUIRED DOCUMENTATION ON FILE. KX -- SPECIFIC REQUIRED DOCUMENTATION ON FILE. (EFFECTIVE DATE 7/1/2002) This modifier may be used to indicate that specific required documentation is on file in the patient's medical record. Documentation must be submitted upon request.
Proteins are made of amino acids hooked end-to-end like beads on a necklace. To simulate. a protein, you will make a model of your protein using a long chenille stem (the fuzzy. covered wire) and colored beads.
The primary structure of a protein is encoded in your DNA. In order to make a protein, you must first make a copy of the DNA through transcription. This process happens in the nucleus. In the cytoplasm, ribosomes will interact with the transcript and create a protein (polypeptide) from individual amino acids.