1qqs
From Proteopedia
| Line 1: | Line 1: | ||
[[Image:1qqs.gif|left|200px]] | [[Image:1qqs.gif|left|200px]] | ||
| - | + | <!-- | |
| - | + | The line below this paragraph, containing "STRUCTURE_1qqs", creates the "Structure Box" on the page. | |
| - | + | You may change the PDB parameter (which sets the PDB file loaded into the applet) | |
| - | + | or the SCENE parameter (which sets the initial scene displayed when the page is loaded), | |
| - | | | + | or leave the SCENE parameter empty for the default display. |
| - | | | + | --> |
| - | + | {{STRUCTURE_1qqs| PDB=1qqs | SCENE= }} | |
| - | + | ||
| - | + | ||
| - | }} | + | |
'''NEUTROPHIL GELATINASE ASSOCIATED LIPOCALIN HOMODIMER''' | '''NEUTROPHIL GELATINASE ASSOCIATED LIPOCALIN HOMODIMER''' | ||
| Line 19: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
| - | 1QQS is a [[Single protein]] structure | + | 1QQS is a [[Single protein]] structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QQS OCA]. |
==Reference== | ==Reference== | ||
Ligand preference inferred from the structure of neutrophil gelatinase associated lipocalin., Goetz DH, Willie ST, Armen RS, Bratt T, Borregaard N, Strong RK, Biochemistry. 2000 Feb 29;39(8):1935-41. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10684642 10684642] | Ligand preference inferred from the structure of neutrophil gelatinase associated lipocalin., Goetz DH, Willie ST, Armen RS, Bratt T, Borregaard N, Strong RK, Biochemistry. 2000 Feb 29;39(8):1935-41. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10684642 10684642] | ||
| - | [[Category: ]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Armen, R.]] | [[Category: Armen, R.]] | ||
| Line 31: | Line 27: | ||
[[Category: Strong, R K.]] | [[Category: Strong, R K.]] | ||
[[Category: Willie, S T.]] | [[Category: Willie, S T.]] | ||
| - | [[Category: | + | [[Category: Glycoprotein]] |
| - | [[Category: | + | [[Category: Neutrophil lipocalin]] |
| - | [[Category: | + | [[Category: Signal protein]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 06:35:51 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 03:35, 3 May 2008
NEUTROPHIL GELATINASE ASSOCIATED LIPOCALIN HOMODIMER
Overview
Neutrophil gelatinase associated lipocalin (NGAL), a constituent of neutrophil granules, is a member of the lipocalin family of binding proteins. NGAL can also be highly induced in epithelial cells in both inflammatory and neoplastic colorectal disease. NGAL is proposed to mediate inflammatory responses by sequestering neutrophil chemoattractants, particularly N-formylated tripeptides and possibly leukotriene B(4) and platelet activating factor. The crystal structures of NGAL display a typical lipocalin fold, albeit with an unusually large and atypically polar binding site, or calyx. The fold of NGAL is most similar to the epididymal retinoic acid-binding protein, another lipocalin, though the overall architecture of the calyces are very different. The crystal structures also reveal either sulfate ions or an adventitiously copurified fatty acid bound in the binding site. Neither ligand is displaced by added N-formylated tripeptides. The size, shape, and character of the NGAL calyx, as well as the low relative affinity for N-formylated tripeptides, suggest that neither the copurified fatty acid nor any of the proposed ligands are likely to be the preferred ligand of this protein. Comparisons between the crystal structures and the recently reported solution structure of NGAL reveal significant differences, in terms of both the details of the structure and the overall flexibility of the fold.
About this Structure
1QQS is a Single protein structure. Full crystallographic information is available from OCA.
Reference
Ligand preference inferred from the structure of neutrophil gelatinase associated lipocalin., Goetz DH, Willie ST, Armen RS, Bratt T, Borregaard N, Strong RK, Biochemistry. 2000 Feb 29;39(8):1935-41. PMID:10684642 Page seeded by OCA on Sat May 3 06:35:51 2008
