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PDBsum entry 4ofi

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protein ligands metals Protein-protein interface(s) links
Cell adhesion PDB id
4ofi

 

 

 

 

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Contents
Protein chains
(+ 2 more) 105 a.a.
Ligands
NAG ×8
Metals
_NA ×4
Waters ×328
PDB id:
4ofi
Name: Cell adhesion
Title: Crystal structure of duf (kirre) d1
Structure: Kin of irre, isoform a. Chain: a, b, c, d, e, f, g, h. Fragment: d1, unp residues 81-185. Synonym: kin of irre, isoform b, kin of irre, isoform c, kin of irre, isoform d, kin of irre, isoform e, kin of irre, isoform f, kin of irre, isoform g. Engineered: yes
Source: Drosophila melanogaster. Fruit fly. Organism_taxid: 7227. Gene: cg3653, dmel_cg3653, duf (kirre), kirre. Expressed in: trichoplusia ni. Expression_system_taxid: 7111.
Resolution:
2.30Å     R-factor:   0.194     R-free:   0.243
Authors: E.Ozkan,K.C.Garcia
Key ref: E.Özkan et al. (2014). Extracellular architecture of the SYG-1/SYG-2 adhesion complex instructs synaptogenesis. Cell, 156, 482-494. PubMed id: 24485456 DOI: 10.1016/j.cell.2014.01.004
Date:
14-Jan-14     Release date:   19-Feb-14    
PROCHECK
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 Headers
 References

Protein chains
Pfam   ArchSchema ?
Q9W4T9  (Q9W4T9_DROME) -  Kin of irre, isoform A from Drosophila melanogaster
Seq:
Struc:
 
Seq:
Struc:
956 a.a.
105 a.a.
Key:    PfamA domain  Secondary structure  CATH domain

 

 
DOI no: 10.1016/j.cell.2014.01.004 Cell 156:482-494 (2014)
PubMed id: 24485456  
 
 
Extracellular architecture of the SYG-1/SYG-2 adhesion complex instructs synaptogenesis.
E.Özkan, P.H.Chia, R.R.Wang, N.Goriatcheva, D.Borek, Z.Otwinowski, T.Walz, K.Shen, K.C.Garcia.
 
  ABSTRACT  
 
SYG-1 and SYG-2 are multipurpose cell adhesion molecules (CAMs) that have evolved across all major animal taxa to participate in diverse physiological functions, ranging from synapse formation to formation of the kidney filtration barrier. In the crystal structures of several SYG-1 and SYG-2 orthologs and their complexes, we find that SYG-1 orthologs homodimerize through a common, bispecific interface that similarly mediates an unusual orthogonal docking geometry in the heterophilic SYG-1/SYG-2 complex. C. elegans SYG-1's specification of proper synapse formation in vivo closely correlates with the heterophilic complex affinity, which appears to be tuned for optimal function. Furthermore, replacement of the interacting domains of SYG-1 and SYG-2 with those from CAM complexes that assume alternative docking geometries or the introduction of segmental flexibility compromised synaptic function. These results suggest that SYG extracellular complexes do not simply act as "molecular velcro" and that their distinct structural features are important in instructing synaptogenesis. PAPERFLICK:
 

 

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