9vak

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(New page: '''Unreleased structure''' The entry 9vak is ON HOLD Authors: Description: Category: Unreleased Structures)
Current revision (08:29, 13 August 2025) (edit) (undo)
 
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'''Unreleased structure'''
 
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The entry 9vak is ON HOLD
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==Carbohydrate-binding module 32 of LnbB from Bifidobacterium bifidum, LNB complex==
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<StructureSection load='9vak' size='340' side='right'caption='[[9vak]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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Authors:
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== Structural highlights ==
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<table><tr><td colspan='2'>[[9vak]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Bifidobacterium_bifidum_JCM_1254 Bifidobacterium bifidum JCM 1254]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9VAK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9VAK FirstGlance]. <br>
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Description:
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
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[[Category: Unreleased Structures]]
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=9vak FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9vak OCA], [https://pdbe.org/9vak PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9vak RCSB], [https://www.ebi.ac.uk/pdbsum/9vak PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9vak ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/LNBB_BIFB1 LNBB_BIFB1] Present in the infant gut, this enzyme is involved in the assimilation of type-1 human milk oligosaccharides (HMOs). It hydrolyzes via a retaining mechanism the beta-D-GlcNAc-(1->3)-beta-D-Gal linkage in lacto-N-tetraose (LNT or beta-D-Gal-(1->3)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-D-Glc), an abundant HMO unique to human breast milk, releasing lacto-N-biose (LNB or beta-D-Gal-(1->3)-D-GlcNAc) and lactose (PubMed:18469123, PubMed:23479733). Is a key enzymatic factor for growth and proliferation of B.bifidum in the gut ecosystem of breast-fed infants (Probable). Has substrate preference for unmodified beta-linked LNB since it does not hydrolyze the fucosylated forms of lacto-N-tetraose (lacto-N-fucopentaose I and II) or lacto-N-neotetraose. Is also able to display transglycosylation activity in vitro (PubMed:18469123).<ref>PMID:18469123</ref> <ref>PMID:23479733</ref> <ref>PMID:23479733</ref>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Bifidobacterium bifidum JCM 1254]]
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[[Category: Large Structures]]
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[[Category: Fushinobu S]]
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[[Category: Kashima T]]
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[[Category: Zhang X]]

Current revision

Carbohydrate-binding module 32 of LnbB from Bifidobacterium bifidum, LNB complex

PDB ID 9vak

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