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.
Alpha Helices. Alpha helices are the most common form of secondary structure in proteins. They are created by right-handed coiling of the primary protein structure. The coiling is caused by hydrogen bond interactions between the amino acids within the protein.Alpha helices are often found in DNA binding motifs.n the cytoplasm, ribosomes will interact with the transcript and create a protein (polypeptide) from individual amino acids. This process is called translation and produces the primary protein structure. Secondary protein structure is the general 3-dimensional form of local segments of a protein.