Selectin

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<StructureSection load='1g1r' size='450' side='right' caption='Structure of P-selectin EGF domain complex with tetrasaccharide and Ca+2 ion (green) (PDB entry [[1g1r]])' scene='55/552185/Cv/1'>
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<StructureSection load='1g1r' size='350' side='right' caption='Structure of P-selectin EGF domain complex with tetrasaccharide and Ca+2 ion (green) (PDB entry [[1g1r]])' scene='55/552185/Cv/1'>
== Function ==
== Function ==
'''Selectin''' or '''CD62''' are cell adhesion molecules which bind sugar moieties and thus are regarded as lectins. The structure of selectin consists of extracellular calcium-dependent lectin domain, an EGF-like domain and a number of concensus repeat units, a transmembranal domain and a intracellular domain<ref>PMID:7542213</ref>. Three types of selectins are found:<br />
'''Selectin''' or '''CD62''' are cell adhesion molecules which bind sugar moieties and thus are regarded as lectins. The structure of selectin consists of extracellular calcium-dependent lectin domain, an EGF-like domain and a number of concensus repeat units, a transmembranal domain and a intracellular domain<ref>PMID:7542213</ref>. Three types of selectins are found:<br />
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== Structural insight ==
== Structural insight ==
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The <scene name='55/552185/Cv/2'>tetrasaccharide binding interactions to P-selectin are electrostatic</scene><ref>PMID:11081633</ref>. <scene name='55/552185/Cv/3'>Ca coordination site</scene>.
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The <scene name='55/552185/Cv/4'>tetrasaccharide binding interactions to P-selectin are electrostatic</scene><ref>PMID:11081633</ref>. <scene name='55/552185/Cv/5'>Ca coordination site</scene>.
</StructureSection>
</StructureSection>
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**[[3cfw]] – hCD62L EGF domain <br />
**[[3cfw]] – hCD62L EGF domain <br />
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**[[5vc1]] – hCD62L EGF domain (mutant)<br />
**[[2lgf]] – hCD62L calmodulin-binding domain + calmodulin<br />
**[[2lgf]] – hCD62L calmodulin-binding domain + calmodulin<br />
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**[[1g1t]] – hCD62E EGF domain + tetrasaccharide<br />
**[[1g1t]] – hCD62E EGF domain + tetrasaccharide<br />
**[[4c16]] – hCD62 EGF+SCR domains + antagonist <br />
**[[4c16]] – hCD62 EGF+SCR domains + antagonist <br />
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**[[4csy]] hCD62 EGF+SCR domains + ligand <br />
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**[[4csy]], [[6eyi]], [[6eyj]], [[6eyk]] - hCD62 EGF+SCR domains + ligand <br />
}}
}}

Current revision

Structure of P-selectin EGF domain complex with tetrasaccharide and Ca+2 ion (green) (PDB entry 1g1r)

Drag the structure with the mouse to rotate

3D structures of selectin

Updated on 21-January-2020

References

  1. Tedder TF, Steeber DA, Chen A, Engel P. The selectins: vascular adhesion molecules. FASEB J. 1995 Jul;9(10):866-73. PMID:7542213
  2. Ley K. The role of selectins in inflammation and disease. Trends Mol Med. 2003 Jun;9(6):263-8. PMID:12829015
  3. Szepietowski J, Wasik F, Bielicka E, Nockowski P, Noworolska A. Soluble E-selectin serum levels correlate with disease activity in psoriatic patients. Clin Exp Dermatol. 1999 Jan;24(1):33-6. PMID:10233646
  4. Kretowski A, Gillespie KM, Bingley PJ, Kinalska I. Soluble L-selectin levels in type I diabetes mellitus: a surrogate marker for disease activity? Immunology. 2000 Feb;99(2):320-5. PMID:10692053
  5. Somers WS, Tang J, Shaw GD, Camphausen RT. Insights into the molecular basis of leukocyte tethering and rolling revealed by structures of P- and E-selectin bound to SLe(X) and PSGL-1. Cell. 2000 Oct 27;103(3):467-79. PMID:11081633

Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky

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