Proteins of interest in selected functional categories that change upon carbon starvation.

The classification is based upon COG (NCBI) and the literature. Abbreviations: HK = histidine kinase; RR = response regulator; HK-RR = hybrid histidine kinase-response regulator.本分类依据美国国家生物技术信息中心（NCBI）的直系同源基因簇（Clusters of Orthologous Groups，简称COG）以及相关学术文献制定。缩写说明如下：HK为组氨酸激酶（histidine kinase）；RR为应答调节因子（response regulator）；HK-RR为杂合组氨酸激酶-应答调节因子（hybrid histidine kinase-response regulator）。