after the peptide chain has been unfolded by heating, by exposure to low ph, or by treatment with urea, it will often spontaneously refold to the native form, this sequence is called renaturation.
肽链加热打开之后,将其置于低ph值环绕或用尿素处理,再折叠到原来的形状,这个过程叫做复体。
so much biological information has been accumulated. at the same time, many protein structures which are the peptide chain of amino acid sequences have also been detected.