5aa7

From Proteopedia
Jump to navigation Jump to search

Structural and functional characterization of a chitin-active 15.5 kDa lytic polysaccharide monooxygenase domain from a modular chitinase from Jonesia denitrificansStructural and functional characterization of a chitin-active 15.5 kDa lytic polysaccharide monooxygenase domain from a modular chitinase from Jonesia denitrificans

Structural highlights

5aa7 is a 2 chain structure with sequence from Jonesia denitrificans. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.55Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

C7R4I0_JONDD

Publication Abstract from PubMed

Lytic polysaccharide monooxygenases (LPMOs) boost enzymatic depolymerization of recalcitrant polysaccharides, such as chitin and cellulose. We have studied a chitin-active LPMO domain (JdLPMO10A) that is considerably smaller (15.5 kDa) than all structurally characterized LPMOs so far and that is part of a modular protein containing a GH18 chitinase. The 1.55 A resolution structure revealed deletions of interacting loops that protrude from the core beta-sandwich scaffold in larger LPMO10s. Despite these deletions, the enzyme is active on alpha- and beta-chitin, and the chitin-binding surface previously described for larger LPMOs is fully conserved. JdLPMO10A may represent a minimal scaffold needed to catalyse the powerful LPMO reaction.

Structural and functional characterization of a small chitin-active lytic polysaccharide monooxygenase domain of a multi-modular chitinase from Jonesia denitrificans.,Mekasha S, Forsberg Z, Dalhus B, Bacik JP, Choudhary S, Schmidt-Dannert C, Vaaje-Kolstad G, Eijsink VG FEBS Lett. 2016 Jan;590(1):34-42. doi: 10.1002/1873-3468.12025. Epub 2015 Dec 28. PMID:26763108[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Mekasha S, Forsberg Z, Dalhus B, Bacik JP, Choudhary S, Schmidt-Dannert C, Vaaje-Kolstad G, Eijsink VG. Structural and functional characterization of a small chitin-active lytic polysaccharide monooxygenase domain of a multi-modular chitinase from Jonesia denitrificans. FEBS Lett. 2016 Jan;590(1):34-42. doi: 10.1002/1873-3468.12025. Epub 2015 Dec 28. PMID:26763108 doi:http://dx.doi.org/10.1002/1873-3468.12025

5aa7, resolution 1.55Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA