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Showing 1 to 12 of 18 entries
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Conformational analysis of the mannosidase inhibitor kifunensine: a quantum mechanical and structural approach

STEM and males

Males A, Raich L, Rovira C, Williams SJ.
GSID: zuNzbGPtNwUJ
A Males, L Raich, SJ Williams, C Rovira… - …, 2017 - Wiley Online Library

… The major contemporary applications of kifunensine stem from its activity as a specific inhibitor of the class I GH47 α-mannosidases involved in glycoprotein biosynthesis within the …

Screening for β-Mannosidases with Transmannosidation Capacity.

Bioscience, biotechnology, and biochemistry

Holazo A, Shinoyama H, Kamiyama Y, Yasui T.
PMID: 27286218
Biosci Biotechnol Biochem. 1992 Jan;56(5):822-4. doi: 10.1271/bbb.56.822.

No abstract available.

Synthesis of 1,2- and 1,3-N-Linked Disaccharides of 5-Thio-alpha-D-mannopyranose as Potential Inhibitors of the Processing Mannosidase Class I and Mannosidase II Enzymes.

The Journal of organic chemistry

Johnston BD, Pinto BM.
PMID: 11672179
J Org Chem. 1998 Aug 21;63(17):5797-5800. doi: 10.1021/jo980168r.

The syntheses of S/N acetal heteroatom analogues of 1,2- and 1,3-linked mannopyranose disaccharides are described. The compounds are analogues of the Man-alpha-(1-->2)-Man and Man-alpha-(1-->3)-Man disaccharide components of oligosaccharides found in N-glycoproteins that are cleaved by trimming mannosidases during glycoprotein...

Gene analysis and enzymatic properties of thermostable beta-glycosidase from Pyrococcus kodakaraensis KOD1.

Journal of bioscience and bioengineering

Ezaki S, Miyaoku K, Nishi K, Tanaka T, Fujiwara S, Takagi M, Atomi H, Imanaka T.
PMID: 16232586
J Biosci Bioeng. 1999;88(2):130-5. doi: 10.1016/s1389-1723(99)80190-x.

A beta-glycosidase with broad substrate specificity was identified from a hyperthermophilic archaeon, Pyrococcus kodakaraensis KOD1. The gene encoding beta-glycosidase (Pk-gly) consists of 1449 nucleotides corresponding to a polypeptide of 483 amino acids. The protein showed similarity with other beta-glycosidases...

One-pot synthesis of cyclic nitrones and their conversion to pyrrolizidines: 7a-epi-crotanecine inhibits alpha-mannosidases.

The Journal of organic chemistry

Cicchi S, Marradi M, Vogel P, Goti A.
PMID: 16468814
J Org Chem. 2006 Feb 17;71(4):1614-9. doi: 10.1021/jo0523518.

[reaction: see text] A new straightforward and inexpensive one-pot procedure is described for the preparation of enantiopure five-membered cyclic nitrones starting from the corresponding lactols. Its efficiency relies on the condensation of unprotected hydroxylamine with readily available lactols and...

Possible role of α-mannosidase and β-galactosidase in larynx cancer.

Contemporary oncology (Poznan, Poland)

Olszewska E, Borzym-Kluczyk M, Rzewnicki I, Wojtowicz J, Rogowski M, Pietruski JK, Czajkowska A, Sieskiewicz A.
PMID: 23788869
Contemp Oncol (Pozn). 2012;16(2):154-8. doi: 10.5114/wo.2012.28795. Epub 2012 May 29.

BACKGROUND: Lysosomal exoglycosidases, such as α-mannosidases (MAN) and β-galactosidases (GAL), are found in different glycoside hydrolase sequence-based families. Considerable research has proved plays the role of MAN, which play a key role in the modification and diversification of hybrid...

Synthesis of 1,4-imino-L-lyxitols modified at C-5 and their evaluation as inhibitors of GH38 α-mannosidases.

Beilstein journal of organic chemistry

Bella M, Šesták S, Moncoľ J, Koóš M, Poláková M.
PMID: 30202468
Beilstein J Org Chem. 2018 Aug 17;14:2156-2162. doi: 10.3762/bjoc.14.189. eCollection 2018.

A synthetic approach to 1,4-imino-L-lyxitols with various modifications at the C-5 position is reported. These imino-L-lyxitol cores were used for the preparation of a series of

Mannosidase activity of EDEM1 and EDEM2 depends on an unfolded state of their glycoprotein substrates.

Communications biology

Shenkman M, Ron E, Yehuda R, Benyair R, Khalaila I, Lederkremer GZ.
PMID: 30374462
Commun Biol. 2018 Oct 18;1:172. doi: 10.1038/s42003-018-0174-8. eCollection 2018.

Extensive mannose trimming of nascent glycoprotein N-glycans signals their targeting to endoplasmic reticulum-associated degradation (ERAD). ER mannosidase I (ERManI) and the EDEM protein family participate in this process. However, whether the EDEMs are truly mannosidases can be addressed only...

Synthetic trisaccharides reveal discrimination of .

Organic & biomolecular chemistry

Nitta K, Kuribara T, Totani K.
PMID: 33876795
Org Biomol Chem. 2021 May 12;19(18):4137-4145. doi: 10.1039/d1ob00428j.

A tri-antennary Man9GlcNAc2 glycan on the surface of endoplasmic reticulum (ER) glycoproteins functions as a glycoprotein secretion or degradation signal after regioselective cleavage of the terminal α-1,2-mannose residue of each branch. Four α-1,2-mannosidases-ER mannosidase I, ER degradation-enhancing α-mannosidase-like protein...

Targeting cancer via Golgi α-mannosidase II inhibition: How far have we come in developing effective inhibitors?.

Carbohydrate research

Lee ZY, Loo JSE, Wibowo A, Mohammat MF, Foo JB.
PMID: 34280804
Carbohydr Res. 2021 Oct;508:108395. doi: 10.1016/j.carres.2021.108395. Epub 2021 Jul 05.

Dysregulation of glycosylation pathways has been well documented in several types of cancer, where it often participates in cancer development and progression, especially cancer metastasis. Hence, inhibition of glycosidases such as mannosidases can disrupt the biosynthesis of glycans on...

Arabidopsis Class I α-Mannosidases MNS4 and MNS5 Are Involved in Endoplasmic Reticulum-Associated Degradation of Misfolded Glycoproteins.

The Plant cell

Hüttner S, Veit C, Vavra U, Schoberer J, Liebminger E, Maresch D, Grass J, Altmann F, Mach L, Strasser R, Dutt R, Hillaire G, Larke L, Rosé C.
PMID: 24737672
Plant Cell. 2014 Apr;26(4):1712-1728. doi: 10.1105/tpc.114.123216. Epub 2014 Apr 15.

To ensure that aberrantly folded proteins are cleared from the endoplasmic reticulum (ER), all eukaryotic cells possess a mechanism known as endoplasmic reticulum-associated degradation (ERAD). Many secretory proteins are N-glycosylated, and despite some recent progress, little is known about...

Up-regulation of golgi α-mannosidase IA and down-regulation of golgi α-mannosidase IC activates unfolded protein response during hepatocarcinogenesis.

Hepatology communications

Tu HC, Hsiao YC, Yang WY, Tsai SL, Lin HK, Liao CY, Lu JW, Chou YT, Wang HD, Yuh CH.
PMID: 29404456
Hepatol Commun. 2017 Apr 19;1(3):230-247. doi: 10.1002/hep4.1032. eCollection 2017 May.

α-1,2 mannosidases, key enzymes in N-glycosylation, are required for the formation of mature glycoproteins in eukaryotes. Aberrant regulation of α-1,2 mannosidases can result in cancer, although the underlying mechanisms are unclear. Here, we report the distinct roles of α-1,2...

Showing 1 to 12 of 18 entries