S-layer（surface layer） has been identified as the outermost structure of cellular envelopes in numerous organisms from bacteria and archaea domains.Despite high similarity of amino acid composition in all known S-layer proteins,the typical characteristics of S-layer proteins from Lactobacillus are small molecular weight,high isoelectric point and alkaline protein,which are distinguished from other S-layer proteins.Several species of Lactobacilli contain multiple S-layer protein genes.Intensive attentions have been paid to the applications of ...
