6f1g

The structure of AbnB-E201A, an intracellular 1,5-alpha-L-arabinanase from Geobacillus stearothermophilus, in complex with arabinopentaoseThe structure of AbnB-E201A, an intracellular 1,5-alpha-L-arabinanase from Geobacillus stearothermophilus, in complex with arabinopentaose

Structural highlights

6f1g is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Activity:	Arabinan endo-1,5-alpha-L-arabinosidase, with EC number 3.2.1.99
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[IABN_GEOSE] Involved in the degradation of arabinan and is a key enzyme in the complete degradation of the plant cell wall. Catalyzes the internal cleavage of alpha-(1->5)-L-arabinofuranosyl residues of debranched arabinan, linear arabinan and short arabino-oligosaccharides (degree of polymerization from 2 to 8). It exhibits marginal activity toward sugar beet arabinan.^[1]

References

↑ Alhassid A, Ben-David A, Tabachnikov O, Libster D, Naveh E, Zolotnitsky G, Shoham Y, Shoham G. Crystal structure of an inverting GH 43 1,5-alpha-L-arabinanase from Geobacillus stearothermophilus complexed with its substrate. Biochem J. 2009 Jul 29;422(1):73-82. PMID:19505290 doi:10.1042/BJ20090180

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OCA

[1] Alhassid A, Ben-David A, Tabachnikov O, Libster D, Naveh E, Zolotnitsky G, Shoham Y, Shoham G. Crystal structure of an inverting GH 43 1,5-alpha-L-arabinanase from Geobacillus stearothermophilus complexed with its substrate. Biochem J. 2009 Jul 29;422(1):73-82. PMID:19505290 doi:10.1042/BJ20090180

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