| Structural highlights
2c11 is a 4 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Ligands: | , , , , , , |
| NonStd Res: | |
| Related: | 2c10 |
| Activity: | Oxidoreductase, with EC number and 1.4.3.22 1.4.3.21 and 1.4.3.22 |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[AOC3_HUMAN] Cell adhesion protein that participates in lymphocyte recirculation by mediating the binding of lymphocytes to peripheral lymph node vascular endothelial cells in an L-selectin-independent fashion. Has a monoamine oxidase activity. May play a role in adipogenesis.[1] [2] [3]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Semicarbazide-sensitive amine oxidase (SSAO) belongs to a ubiquitous family of copper-containing amine oxidases (CuAOs). SSAO is also known as vascular adhesion protein-1 (VAP-1) and has been identified as one of the adhesion molecules involved in the leukocyte-extravasation process. The structure of a truncated soluble form of human SSAO has been solved and refined to 2.5 A. As expected, SSAO is a homodimer with a fold typical of the CuAO family. The topaquinone (TPQ) cofactor and a copper ion characteristic of CuAOs are present in the active site, with the TPQ in the active ;off-copper' conformation. The structure reveals that a leucine residue (Leu469) located adjacent to the active site could function as a gate controlling its accessibility. An RGD motif is displayed on the surface, where it could be involved in integrin binding and possibly play a role in the shedding of SSAO from the membrane. Carbohydrate moieties are observed at five of six potential N-glycosylation sites. Carbohydrates attached to Asn232 flank the active-site entrance and might influence substrate specificity. The structure of an adduct of SSAO and the irreversible inhibitor 2-hydrazinopyridine has been solved and refined to 2.9 A resolution. Together, these structures will aid efforts to identify natural substrates, provide valuable information for the design of specific inhibitors and direct further studies.
Structure of human semicarbazide-sensitive amine oxidase/vascular adhesion protein-1.,Jakobsson E, Nilsson J, Ogg D, Kleywegt GJ Acta Crystallogr D Biol Crystallogr. 2005 Nov;61(Pt 11):1550-62. Epub 2005, Oct 19. PMID:16239734[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Smith DJ, Salmi M, Bono P, Hellman J, Leu T, Jalkanen S. Cloning of vascular adhesion protein 1 reveals a novel multifunctional adhesion molecule. J Exp Med. 1998 Jul 6;188(1):17-27. PMID:9653080
- ↑ Bour S, Daviaud D, Gres S, Lefort C, Prevot D, Zorzano A, Wabitsch M, Saulnier-Blache JS, Valet P, Carpene C. Adipogenesis-related increase of semicarbazide-sensitive amine oxidase and monoamine oxidase in human adipocytes. Biochimie. 2007 Aug;89(8):916-25. Epub 2007 Feb 24. PMID:17400359 doi:http://dx.doi.org/10.1016/j.biochi.2007.02.013
- ↑ Kaitaniemi S, Elovaara H, Gron K, Kidron H, Liukkonen J, Salminen T, Salmi M, Jalkanen S, Elima K. The unique substrate specificity of human AOC2, a semicarbazide-sensitive amine oxidase. Cell Mol Life Sci. 2009 Aug;66(16):2743-57. doi: 10.1007/s00018-009-0076-5. Epub , 2009 Jul 9. PMID:19588076 doi:http://dx.doi.org/10.1007/s00018-009-0076-5
- ↑ Jakobsson E, Nilsson J, Ogg D, Kleywegt GJ. Structure of human semicarbazide-sensitive amine oxidase/vascular adhesion protein-1. Acta Crystallogr D Biol Crystallogr. 2005 Nov;61(Pt 11):1550-62. Epub 2005, Oct 19. PMID:16239734 doi:http://dx.doi.org/10.1107/S0907444905028805
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