Abstract
A highly efficient expression for human acidic fibroblasts growth factor (aFGF) has been assembled to direct the synthesis of both shortened and native full-length aFGF. The full-length aFGF-154 form of the protein had not been produced before in Escherichia coli by genetic engineering, and is obtained with its initiator methionine removed. The high production of the aFGF allows one to circumvent the use of reversed-phase chromatography (RPC) during the purification procedure. Here, it is shown that RPC, routinely used to obtain pure preparations of recombinant aFGF, modifies its chemical and physical properties in an unfavorable manner.
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