ER-mitochondria tethering and Ca2+ crosstalk: The IP3R team takes the field

Inter-organelle communication represents a booming topic in cell biology research, with endoplasmic reticulum (ER)-mitochondria coupling playing the lion's share. In a recent work, Bartok and colleagues found that inositol trisphosphates receptors (IP3Rs), in addition to their well-known involvement in ER-mitochondria Ca2+ transfer, are endowed with structural properties at organelles' interface