Skip to main content
. 2023 Mar 24;14:243–257. doi: 10.18632/oncotarget.28390

Table 1. Cellular functions and mutation and overexpression incidence rates of G-proteins in human cancers.

Subfamily Cellular functions G-protein Genetic alteration in cancer Major cancer type Incidence rates (%) References
RAS Mediate and activate some major pathways
that control cell proliferation, survival,
and cell cycle progression [4].
KRAS4b Mutation Pancreatic cancer 90 [2831]
Non-small cell lung cancer 30–35
KRAS4a Colorectal Colon cancer 30–45
HRAS Mutation Bladder urothelial 57 [32]
NRAS Mutation Melanoma 94 [33, 34]
Leukemia 59
RHO Regulate vesicle transport and assembly
and disassembly of actin cytoskeleton
required for cell migration and
invasion [35].
RHOA Overexpression Colon 95 [35]
Lung 95
RAC1 Mutation Breast 50 [14, 33, 3639]
Overexpression Breast 70
Lung 50
CDC42 Overexpression Breast 95 [14, 33, 40]
Colorectal 60
ARF Regulate different steps in intracellular
membrane transport [7].
ARF1-ARF6 Unknown [7]
RAB Regulate vesicular membrane trafficking
events such as early endosomal
membrane tracking, fusion,
and sorting [41].
RAB5 Unknown [8, 41, 42]
RAN Facilitates transport into and out
of the nucleus [9].
RAN Unknown [9]