InterPro domain: IPR041358

This is the N-terminal alpha helical domain found in Rubisco accumulation factor1 (Raf1). Raf1 from Arabidopsis thaliana consists of an N-terminal alpha-domain, a flexible linker segment and a C-terminal beta-sheet domain that mediates dimerization. The alpha-domains mediate the majority of functionally important contacts with RbcL (Rubisco large subunits) by bracketing each RbcL dimer at the top and bottom. The alpha-domain alone is essentially inactive [ 1 ].

1. Structure and mechanism of the Rubisco-assembly chaperone Raf1. Nat. Struct. Mol. Biol. 22, 720-8