Galactose-binding lectin

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<StructureSection load='' size='350' side='right' caption='Structure of peanut galactose-binding lectin tetramer complex with β-D-galactose, α-D-glucose, Ca+2 (green) and Mn+2 (purple) ions (PDB entry [[1v6i]])' scene='57/572274/Cv/1'>
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<StructureSection load='' size='450' side='right' caption='Structure of peanut galactose-binding lectin tetramer complex with β-D-galactose, α-D-glucose, Ca+2 (green) and Mn+2 (purple) ions (PDB entry [[1v6i]])' scene='57/572274/Cv/1'>
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__TOC__
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== Function ==
== Function ==
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== Structural highlights ==
== Structural highlights ==
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The carbohydrate ligand binds to 3 loops<ref>PMID:14747696</ref>. <scene name='57/572274/Cv/3'>β-D-galactose/α-D-glucose binding site</scene> in peanut galactose-binding lectin (PDB entry [[1v6i]]).
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The carbohydrate ligand binds to 3 loops<ref>PMID:14747696</ref>. <scene name='57/572274/Cv/6'>β-D-galactose/α-D-glucose binding site</scene> in peanut galactose-binding lectin (PDB entry [[1v6i]]).
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<scene name='57/572274/Cv/4'>Ca coordination site</scene>.
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<scene name='57/572274/Cv/7'>Ca coordination site</scene>.
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<scene name='57/572274/Cv/5'>Mn coordination site</scene>. Water molecules shown as red spheres.
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<scene name='57/572274/Cv/8'>Mn coordination site</scene>. Water molecules shown as red spheres.
</StructureSection>
</StructureSection>
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**[[2dv9]], [[2dvd]] – GBL + β-D-galactose <br />
**[[2dv9]], [[2dvd]] – GBL + β-D-galactose <br />
**[[1rir]] – GBL + porphyrin derivative <br />
**[[1rir]] – GBL + porphyrin derivative <br />
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**[[6v95]], [[6vav]], [[6vaw]], [[6vc3]], [[6vc4]], [[6vgf]] – GBL + galactopyranose derivative <br />
*''Peanut GBL ternary complex''
*''Peanut GBL ternary complex''
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**[[1l7l]], [[1uoj]] – GBL <br />
**[[1l7l]], [[1uoj]] – GBL <br />
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**[[4cp9]], [[4cpb]], [[7z62]], [[7z63]], [[8guv]], [[9g3r]] – GBL + galactoside <br />
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**[[7fio]], [[7fjh]] – GBL + inhibitor<br />
*''PaGBL binary complex''
*''PaGBL binary complex''
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**[[2wyf]] – GBL + methyl-β-galactose <br />
**[[2wyf]] – GBL + methyl-β-galactose <br />
**[[4ljh]] – GBL + β-D-galactose <br />
**[[4ljh]] – GBL + β-D-galactose <br />
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**[[3zyf]], [[4a6s]] – GBL + galactopyranose derivative<br />
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**[[3zyf]], [[4a6s]], [[4yw6]], [[5mih]] – GBL + galactopyranose derivative<br />
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**[[4ywa]] – GBL + triazole derivative <br />
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**[[6yo3]], [[6yoh]] – GBL + oxidanyl derivative <br />
*''PaGBL ternary complex''
*''PaGBL ternary complex''
**[[3zyh]] – GBL + galactopyranose derivative + gal-lys-pro-leu <br />
**[[3zyh]] – GBL + galactopyranose derivative + gal-lys-pro-leu <br />
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**[[4yw7]] – GBL + galactopyranose derivative + triazole derivative <br />
**[[3zyb]] – GBL + β-D-galactose + gal-lys-pro-leu<br />
**[[3zyb]] – GBL + β-D-galactose + gal-lys-pro-leu<br />
**[[4lk6]] – GBL + β-D-galactose + chlorophenol red<br />
**[[4lk6]] – GBL + β-D-galactose + chlorophenol red<br />
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**[[2ds0]] – LtGBL C terminal (mutant) + sialyllactose <br />
**[[2ds0]] – LtGBL C terminal (mutant) + sialyllactose <br />
**[[2zqo]] – LtGBL C terminal + GalNac <br />
**[[2zqo]] – LtGBL C terminal + GalNac <br />
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*Other GBL
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**[[5x4a]], [[3wmp]], [[3wmq]] – GBL residues 47-140 + polysaccharide – ''Sinularia lochmodes'' <br />
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**[[2zqn]] – eGBL C-terminal + lactose – earthworm<br />
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**[[2zqo]] – eGBL C-terminal + GalNac<br />
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**[[8vck]] – muGBL - mussell<br />
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**[[8vcm]], [[8vco]], [[8vcp]], [[8vcq]], [[8vcs]], [[8vcu]] – muGBL + galactoside<br />
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**[[6yf6]] – GBL C-terminal + fucoside derivative – ''Enterobacter cloacae''<br />
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}}
}}
== References ==
== References ==
<references/>
<references/>
[[Category:Topic Page]]
[[Category:Topic Page]]

Current revision

Structure of peanut galactose-binding lectin tetramer complex with β-D-galactose, α-D-glucose, Ca+2 (green) and Mn+2 (purple) ions (PDB entry 1v6i)

Drag the structure with the mouse to rotate

3D structures of galactose-binding lectin

Updated on 10-July-2025

References

  1. Natchiar SK, Srinivas O, Mitra N, Surolia A, Jayaraman N, Vijayan M. Structural studies on peanut lectin complexed with disaccharides involving different linkages: further insights into the structure and interactions of the lectin. Acta Crystallogr D Biol Crystallogr. 2006 Nov;62(Pt 11):1413-21. Epub 2006, Oct 18. PMID:17057347 doi:10.1107/S0907444906035712
  2. Kundhavai Natchiar S, Arockia Jeyaprakash A, Ramya TN, Thomas CJ, Suguna K, Surolia A, Vijayan M. Structural plasticity of peanut lectin: an X-ray analysis involving variation in pH, ligand binding and crystal structure. Acta Crystallogr D Biol Crystallogr. 2004 Feb;60(Pt 2):211-9. Epub 2004, Jan 23. PMID:14747696 doi:http://dx.doi.org/10.1107/S090744490302849X

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Michal Harel, Alexander Berchansky, Joel L. Sussman, Jaime Prilusky

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