Structural insights of two novel N-acetyl-glucosaminidase enzymes through in silico methods

Authors

ARİF SERCAN ŞAHUTOĞLU
HATİCE DUMAN
STEVEN ALEX FRESE
SERCAN KARAV

DOI

10.3906/kim-2006-19

Abstract

EndoBI-1 and EndoBI-2 are two endo-β-N-acetylglucosaminidase isoenzymes that cleave N-N'-diacetylchitobiosyl moieties found in various types of native N-glycans. These N-glycans are indigestible by human infants and adults due to the lack of responsible glycosyl hydrolases and they act as selective prebiotics for a probiotic microorganism, Bifidobacterium longum subsp. infantis, in the large intestine. The selectivity and the thermostability of EndoBI-1 and EndoBI-2 suggest that these enzymes may be useful for many scientific and industrial applications. In this study, the growing numbers of homologous sequences in different databases were exploited in a comparative approach to investigate structural properties of EndoBI-1 and EndoBI-2 enzymes. Moreover, the complete and partial homology models of these two enzymes were generated and evaluated. Selected models were used for docking studies of the plus subsite ligand of these enzymes for further understanding on the substrate selectivity of EndoBI enzymes.

Keywords

N-glycan, endo-β-N-acetylglucosaminidase, EndoBI-1, EndoBI-2

First Page

1703

Last Page

1712

Recommended Citation

ŞAHUTOĞLU, ARİF SERCAN; DUMAN, HATİCE; FRESE, STEVEN ALEX; and KARAV, SERCAN (2020) "Structural insights of two novel N-acetyl-glucosaminidase enzymes through in silico methods," Turkish Journal of Chemistry: Vol. 44: No. 6, Article 22. https://doi.org/10.3906/kim-2006-19
Available at: https://journals.tubitak.gov.tr/chem/vol44/iss6/22