What is a protein expression vector?

A vector is a self-replicating DNA molecule used in genetic engineering recombinant DNA technology to transfer a DNA fragment (target gene) into host cells. The three most commonly used vectors are bacterial plasmids, bacteriophages, and animal/plant viruses. The type of vector must match the host. Based on the host, they are classified as prokaryotic (bacterial) expression vectors, yeast expression vectors, plant expression vectors, mammalian expression vectors, insect expression vectors, etc. The vector contains the foreign gene fragment. Through vector mediation, the foreign gene can be expressed in the host. GeneCreate primarily uses prokaryotic expression vectors.