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5man

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Structure of sucrose phosphorylase from Bifidobacterium adolescentis bound to nigerose

Structural highlights

5man is a 1 chain structure with sequence from Bifidobacterium adolescentis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.04Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

SUCP_BIFAA Catalyzes the reversible phosphorolysis of sucrose into alpha-D-glucose 1-phosphate (Glc1P) and D-fructose (PubMed:14740189, PubMed:20691225). Is involved in sucrose degradation. Also displays transglucosylation activity in vitro, by transferring the glucosyl moiety of Glc1P to a broad range of monomeric sugars, such as D- and L-arabinose, D- and L-arabitol, and xylitol (PubMed:14740189).^[1] ^[2]

Publication Abstract from PubMed

Here we present a point mutation-triggered domain shift which switches the acceptor preference of a sucrose phosphorylase from phosphate to a variety of large polyphenolic compounds including resveratrol and quercetin, enabling their efficient glucosylation. The variant possesses a high affinity for aromatic substrates due to newly introduced pi-pi- and hydrophobic interactions in the altered active site. The domain shift brings about a substantially enlarged and multifunctional active site for polyphenol glucosylation and rare disaccharide production. The crystal structure of the variant with its product resveratrol-3-alpha-d-glucoside allows the prediction of the substrate scope and regioselectivity of the aromatic compounds' glucosylation sites.

Switching enzyme specificity from phosphate to resveratrol glucosylation.,Kraus M, Grimm C, Seibel J Chem Commun (Camb). 2017 Nov 9;53(90):12181-12184. doi: 10.1039/c7cc05993k. PMID:29057405^[3]

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

References

↑ van den Broek LA, van Boxtel EL, Kievit RP, Verhoef R, Beldman G, Voragen AG. Physico-chemical and transglucosylation properties of recombinant sucrose phosphorylase from Bifidobacterium adolescentis DSM20083. Appl Microbiol Biotechnol. 2004 Aug;65(2):219-27. Epub 2004 Jan 22. PMID:14740189 doi:http://dx.doi.org/10.1007/s00253-003-1534-x
↑ Cerdobbel A, Desmet T, De Winter K, Maertens J, Soetaert W. Increasing the thermostability of sucrose phosphorylase by multipoint covalent immobilization. J Biotechnol. 2010 Oct 1;150(1):125-30. doi: 10.1016/j.jbiotec.2010.07.029. Epub , 2010 Aug 4. PMID:20691225 doi:http://dx.doi.org/10.1016/j.jbiotec.2010.07.029
↑ Kraus M, Grimm C, Seibel J. Switching enzyme specificity from phosphate to resveratrol glucosylation. Chem Commun (Camb). 2017 Nov 9;53(90):12181-12184. doi: 10.1039/c7cc05993k. PMID:29057405 doi:http://dx.doi.org/10.1039/c7cc05993k