Parallel beta-helix repeat (IPR006626)

Short name: PbH1


The tertiary structures of pectate lyases and rhamnogalacturonase A show a stack of parallel beta strands that are coiled into a large helix. Each coil of the helix represents a structural repeat that, in some homologues, can be recognised from sequence information alone. Conservation of asparagines might be connected with asparagine-ladders that contribute to the stability of the fold. Proteins containing these repeats most often are enzymes with polysaccharide substrates [PMID: 9724625].

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.