Four spots of proteins in gel were identified as flagellar filament cap, 2-phosphoglycerate dehydratase, 3,4-dihydroxy-2-butanone 4-phosphate sythase (DHBP synthase) and heat shock protein 33 homolog.

• 与结构性群体形成密切相关的蛋白质为鞭毛丝帽蛋白、2 磷酸甘油酸酯脱水酶、3,4 邻苯二酚 2 丁酮 4 磷酸盐合成酶和热休克蛋白 33同类物。