Figure 1From: β1-integrins signaling and mammary tumor progression in transgenic mouse models: implications for human breast cancerβ1-integrins constitute the largest subgroup of integrins. β1-integrin subunits can associate with 12 different α-subunits. All β1-integrins bind to extracellular matrix molecules. Shaded circles represent the α-subunits expressed in the mammary gland.Back to article page