Galectin: Difference between revisions

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== Function ==
== Function ==


'''Galectin''' (GAL) are lectins which bind β-galactosidase (BGAL).  GAL contains a carbohydrate recognition domain (CRD) residues 113-250<ref>PMID:8063692</ref>.  <br />
'''Galectin''' or '''galactoside-binding soluble lectin''' (GAL) are lectins which bind β-galactosidase (BGAL).  GAL contains a carbohydrate recognition domain (CRD) residues 113-250<ref>PMID:8063692</ref>.  <br />
* GAL-1 is thought to play a role as autocrine negative growth factor that regulates cell proliferation.<br />
* GAL-1 is thought to play a role as autocrine negative growth factor that regulates cell proliferation.<br />
* GAL-2 is expressed primarily in gastrointestinal tract.<br />
* GAL-2 is expressed primarily in gastrointestinal tract.<br />
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== Structural highlights ==
== Structural highlights ==


The CRD is a β-sandwich long enough to bind a tetrasaccharide.  A <scene name='51/516488/Cv/3'>lactose ligand is bound at the concave face of the β-sheet</scene><ref>PMID:15476813</ref>. Water molecules shown as red spheres.
The CRD is a β-sandwich long enough to bind a tetrasaccharide.  A <scene name='51/516488/Cv/4'>lactose ligand is bound at the concave face of the β-sheet</scene><ref>PMID:15476813</ref>. Water molecules shown as red spheres.
</StructureSection>


==3D structures of galectin==
==3D structures of galectin==
[[Galectin 3D structures]]


Updated on {{REVISIONDAY2}}-{{MONTHNAME|{{REVISIONMONTH}}}}-{{REVISIONYEAR}}
</StructureSection>
{{#tree:id=OrganizedByTopic|openlevels=0|
 
*Galectin-1
 
**[[1slt]], [[1sla]], [[1slb]], [[1slc]] – GAL-1 + BGAL – bovine<br />
**[[1hlc]] – hGAL-1 + lactose – human<br />
**[[3w58]], [[3w59]] – hGAL-1<br />
**[[2km2]] – hGAL-1 -NMR<BR />
**[[1w6n]], [[1w6q]] - hGAL-1 (mutant) <br />
**[[1w6o]], [[2zkn]] – hGAL-1 (mutant) + lactose<br />
**[[4q26]], [[4q27]], [[4xbl]] - hGAL-1 + acetyl lactosamine<br />
**[[1w6p]] – hGAL-1 (mutant) + acetyl lactosamine<br />
**[[4y1u]], [[4y1v]], [[4y1x]], [[4y1y]], [[4y1z]], [[4y20]], [[4y22]], [[4y24]] - hGAL-1 N-terminal + Gal-GlcNac<br />
**[[1gzw]] – hGAL-1 + BGAL<br />
**[[1w6m]] – hGAL(mutant)  + BGAL<br />
**[[3oy8]] – hGAL-1 + lactobionic acid<br />
**[[3oyw]] - hGAL-1 + thio-digalactoside<br />
**[[3t2t]], [[4q1p]], [[4q1r]], [[4q2f]] – hGAL-1 + inhibitor<br />
**[[5mwt]], [[5mwx]] – hGAL-1 + ligand<br />
**[[1gan]] – tGAL-1 + BGAL – toad<br />
**[[1a78]] – tGAL-1 + thio-digalactose<br />
**[[3m2m]], [[4ga9]] - rGAL-1 + lactose – rat<br />
**[[4no4]] - rGAL-1 (mutant) + lactose<br />
**[[4lbq]] – mGAL-1 – mouse<br />
 
*Galectin-2
 
**[[1ul9]] – CchGAL-2 – ''Coprinopsis cinerea''<br />
**[[2ymz]] – GAL-2 – chicken<br />
**[[1ulc]] – CcGAL-2 + lactose<br />
**[[1ulg]] - CcGAL-2 + BGAL<br />
**[[1uld]], [[2wkk]] – CcGAL-2 + BGAL + fucose<br />
**[[1ule]], [[1ulf]] – CcGAL-2 + polysaccharide<br />
**[[5dg1]], [[5dg2]], [[5ews]] - hGAL-2 N-terminal <br />
 
*Galectin-3
 
**[[3zsk]], [[3zsl]], [[3zsm]], [[5nlc]] – hGAL-3 CRD<br />
**[[6f2q]] - hGAL-3 CRD – neutron<br />
**[[1a3k]], [[1kjl]], [[2nmn]] – hGAL-3 CRD + BGAL<br />
**[[2nmo]] - hGAL-3 CRD + glucose + BGAL<br />
**[[2nn8]], [[3aye]], [[3zsj]], [[4r9a]], [[4r9b]], [[4r9c]], [[4r9d]], [[4rl7]] - hGAL-3 CRD + lactose<br />
**[[1kjr ]], [[4xbn]], [[5nf7]], [[5nf9]], [[5nla]], [[5nlb]] – hGAL-3 CRD  + lactosamine derivative<br />
**[[2xg3]], [[3t1l]], [[3t1m]], [[5e88]], [[5e89]], [[5e8a]], [[5exo]], [[5h9p]], [[5h9r]], [[5iuq]] - hGAL-3 CRD + inhibitor<br />
**[[3aya]] - hGAL-3 CRD + antigen<br />
**[[3ayc]], [[3ayd]], [[4jc1]], [[4jck]] - hGAL-3 CRD + polysaccharide<br />
**[[4lbj]], [[4lbk]], [[4lbl]], [[4lbm]], [[4lbn]], [[4lbo]] - hGAL-3 CRD (mutant) + glycosphingolipid<br />
**[[4bli]], [[4blj]], [[4bm8]], [[5oax]], [[5ody]] - hGAL-3 CRD + thiogalactoside derivative<br />
 
*Galectin-4
 
**[[1x50]] – hGAL-4 CRD – NMR<BR />
**[[4xzp]], [[5duu]] - hGAL-4 N terminal <br />
**[[5duv]], [[5duw]], [[5dux]] - hGAL-4 N terminal + lactose derivative<br />
**[[4ylz]], [[4ym0]] - hGAL-4 CRD + lacto-neotetraose<br />
**[[4ym1]], [[4ym2]], [[4ym3]], [[5cbl]] - hGAL-4 CRD + lactose derivative<br />
**[[2dyc]] – mGAL-4 CRD <br />
**[[3i8t]] – mGAL-4 + lactose<br />
 
*Galectin-5
 
**[[5jp5]] – rGAL-5<br />
**[[5jpg]] – rGAL-5 + lactose<br />
 
*Galectin-7
 
**[[1bkz]], [[3zxf]] – hGAL-7<br />
**[[4gal]] – hGAL-7 + lactose<br />
**[[2gal]] - hGAL-7 + BGAL<br />
**[[3gal]] – hGAL-7 + galactosamine<br />
**[[5gal]], [[4xbq]] – hGAL-7 + acetyllactosamine<br />
**[[3zxe]], [[5h9q]], [[5h9s]] - hGAL-7 N-terminal + inhibitor<br />
**[[4uw3]], [[4uw4]], [[4uw5]], [[4uw6]] – hGAL-7 + galactose-based dendron<br />
**[[4y26]] - hGAL-7 N-terminal + Gal-GlcNac<br />
 
*Galectin-8
 
**[[2yro]] – hGAL-8 CRD – NMR<BR />
**[[3ap5]], [[3apb]], [[3ap9]], [[3vkn]] - hGAL-8 CRD<br />
**[[3ap4]], [[3ap6]], [[3vkl]] - hGAL-8 CRD + lactose<br />
**[[3ap7]], [[3vkm]] - hGAL-8 CRD + sialyllactose<br />
**[[3ap8]], [[3vko]] - hGAL-8 CRD + polysaccharide<br />
**[[4gxl]], [[4han]] - hGAL-8 CRD + NDP52 peptide<br />
**[[4fqz]] – hGAL-8 CRD (mutant) + glucose + BGAL<br />
**[[2yv8]], [[5gzc]], [[5gzd]], [[5gze]], [[5gzf]], [[5gzg]], [[5t7u]] – hGAL-8 N terminal<br />
**[[3ojb]] - hGAL-8 C terminal<br />
**[[2yxs]], [[4bmb]] – hGAL-8 N terminal + lactose<br />
**[[4bme]], [[5t7s]] – hGAL-8 N terminal (mutant) + lactose<br />
**[[5t7i]] – hGAL-8 N terminal + LNNT<br />
**[[5t7t]] – hGAL-8 N terminal (mutant) + LNT<br />
**[[2yy1]] – hGAL-8 N terminal + acetyllactosamine<br />
**[[5vwg]] – hGAL-8 N terminal (mutant) + galactopyranoside derivative<br />
**[[4wvv]], [[4wvw]] - cGAL-8 N terminal + lactose derivative<br />
 
*Galectin-9
 
**[[2d6k]], [[2d6l]] – mGAL-9 CRD<br />
**[[2d6m]] – mGAL-9 CRD + lactose<br />
**[[2d6n]], [[2d6o]]– mGAL-9 CRD + acetyllactosamine<br />
**[[2d6p]] – mGAL-9 CRD + antigen<br />
**[[3lsd]] – hGAL-9 N terminal<br />
**[[3wv6]] – hGAL-9 (mutant)<br />
**[[3nv1]] – hGAL-9 CRD<br />
**[[3lse]] – hGAL-9 N terminal + lactose<br />
**[[2eak]], [[3wlu]] - hGAL-9 CRD + lactose<br />
**[[3nv4]] - hGAL-9 CRD + sialyllactose<br />
**[[2zhk]], [[2zhl]], [[2zhm]], [[2zhn]], [[3nv2]] - hGAL-9 CRD + acetyllactosamine<br />
**[[3nv3]] - hGAL-9 CRD + polysaccharide<br />
**[[2eal]] - mGAL-9 CRD + pentasaccharide
 
*Galectin-10
 
**[[5xrg]], [[5xrh]] – hGAL-10 <br />
**[[5yt4]], [[5xri]], [[5xrj]], [[5xrk]], [[5xrl]], [[5xrm]], [[5xrn]], [[5xro]], [[5xrp]] – hGAL-10 (mutant)<br />
**[[1bkz]] – hGAL-10 + mannose<br />
**[[1hdk]] – hGAL-10 + PCMBS
 
*Galectin-13 or galactoside-binding soluble lectin 13
 
**[[5xg7]] – hGAL-13 <br />
**[[5y03]], [[5xg9]] – hGAL-13 (mutant)<br />
 
*Galectin


**[[1ww4]] – AcGAL + NEUACA2-3-lacose – ''Agrocybe cylindracea''<br />
== References ==
**[[1ww5]], [[1ww6]] – AcGAL + lactose derivative<br />
<references/>
**[[1ww7]] – AcGAL<br />
**[[4agg]], [[4agr]], [[4agv]] – GAL - ''Cinachyrella''<br />
**[[4hl0]], [[5glt]], [[5glu]], [[5glv]], [[5glw]], [[5glz]], [[5gm0]]  – GAL – ''Toxascaris leonina''<br />
**[[3wuc]], [[3wud]] – GAL – ''Xenopus laevis''<br />
**[[5nld]], [[5nle]], [[5nlh]], [[5nlz]], [[5nm1]], [[5nm6]], [[5nmj]] – cGAL + lactose<br />
}}


[[Category:Topic Page]]
[[Category:Topic Page]]

Latest revision as of 08:34, 3 August 2021

Structure of human galectin-1 complex with lactose, mercaptoethanol and sulfate (PDB entry 1w6o)

Drag the structure with the mouse to rotate

References

Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Joel L. Sussman