Ralph A. Francescone III/sandbox 1: Difference between revisions

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A CBI Molecule being studied in the University of Massachusetts Amherst Chemistry-Biology Interface Program at UMass Amherst and on display at the Molecular Playground.
[[Image:YKL-40.jpg|frame|Crystal Structure of YKL-40]]
[[Image:YKL-40.jpg|frame|Crystal Structure of YKL-40]]


===YKL-40 is the best===
===YKL-40, a Secreted Glycoprotein===


YKL-40 is named for its first three amino acid residues--tyrosine, lysine, and leucine-- and its molecular weight, 40 kDa. It is a member of the chitinase family of proteins, although it has no chitinase activity. It has been implicated in the progession of inflammatory diseases, diabetes, and many cancers. It is one of the most up-regulated genes in glioblastoma multiform (GBM), the most common malignacy of the brain and central nervous system. High YKL-40 serum levels correlate with the worst prognosis for many cancers, especially in GBM. It is thought to increase tumor angiogenesis and endothelial cell migration into tumors.


{{STRUCTURE_1hjx |  PDB=1hjx  |  SCENE=  }}
{{STRUCTURE_1hjx |  PDB=1hjx  |  SCENE=  }}




{{Clear}}
Click here for a stick representation of the ligands bound to YKL-40 (Glycerol, N-ACETYL-D-GLUCOSAMINE, SULFATE ION):
<applet load='1hjx' size='[450,338]' frame='true' align='right'
<scene name='Ralph_A._Francescone_III/sandbox_1/Ligand_bound_state/1'>Ligand Bound State</scene>
caption='Crystal structure of human cartilage gp39 (1hjx)' scene='User:Ralph_A_Francescone_III/sandbox_1/Loadedfrompdb/4'/>
 
===References===
 
1.) Houston, D.R.,  Recklies, A.D.,  Krupa, J.C.,Van Aalten, D.M.F. Structure and ligand-induced conformational change of the 39-kDa glycoprotein from human articular chondrocytes.(2003) J.Biol.Chem. 278: 30206.
 
 
2.) Shao et al. YKL-40, a secreted glycoprotein, promotes tumor angiogenesis. Oncogene (2009) 28, 4456–4468.

Latest revision as of 23:40, 29 April 2010

A CBI Molecule being studied in the University of Massachusetts Amherst Chemistry-Biology Interface Program at UMass Amherst and on display at the Molecular Playground.

Crystal Structure of YKL-40

YKL-40, a Secreted GlycoproteinYKL-40, a Secreted Glycoprotein

YKL-40 is named for its first three amino acid residues--tyrosine, lysine, and leucine-- and its molecular weight, 40 kDa. It is a member of the chitinase family of proteins, although it has no chitinase activity. It has been implicated in the progession of inflammatory diseases, diabetes, and many cancers. It is one of the most up-regulated genes in glioblastoma multiform (GBM), the most common malignacy of the brain and central nervous system. High YKL-40 serum levels correlate with the worst prognosis for many cancers, especially in GBM. It is thought to increase tumor angiogenesis and endothelial cell migration into tumors.


PDB ID 1hjx

Drag the structure with the mouse to rotate
1hjx, resolution 1.85Å ()
Ligands: , ,
Related: 1hjv, 1hjw, 1la7
Resources: FirstGlance, OCA, RCSB, PDBsum
Coordinates: save as pdb, mmCIF, xml



Click here for a stick representation of the ligands bound to YKL-40 (Glycerol, N-ACETYL-D-GLUCOSAMINE, SULFATE ION):

ReferencesReferences

1.) Houston, D.R., Recklies, A.D., Krupa, J.C.,Van Aalten, D.M.F. Structure and ligand-induced conformational change of the 39-kDa glycoprotein from human articular chondrocytes.(2003) J.Biol.Chem. 278: 30206.


2.) Shao et al. YKL-40, a secreted glycoprotein, promotes tumor angiogenesis. Oncogene (2009) 28, 4456–4468.

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Ralph A. Francescone III
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