%A Gurmeet Kaur %A Srikrishna Subramanian %O Open Access %J Biology direct %T A novel RING finger in the C-terminal domain of the coatomer protein ?-COP. %X The C-terminal domain of ?-COP, an essential subunit of the COPI coatomer complex, is composed of an all ?-helical region and a small ?-sheet domain. We show that this ?-sheet domain is a Really Interesting New Gene (RING)-like treble clef zinc finger. The zinc-binding residues are substituted by other aminoacids in many homologs including the structurally-characterized proteins from Saccharomyces cerevisiae and Bos taurus. This RING-like domain is possibly related to those of other vesicle membrane-associated complexes, such as CORVET, HOPS and SEA, and likely mediates interactions with Dsl1p and assist in coat oligomerization. %N 1 %P 70 %V 10 %D 2015 %I BioMed Central %L open1734