1pu4

Crystal structure of human vascular adhesion protein-1Crystal structure of human vascular adhesion protein-1

Structural highlights

1pu4 is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 3.2Å
Ligands:	, , ,
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

The expression of human vascular adhesion protein-1 (hVAP-1) is induced at sites of inflammation where extravasation of lymphocytes from blood to the peripheral tissue occurs. We have solved the X-ray structure of hVAP-1, a human copper amine oxidase (CAO), which is distinguished from other CAOs in being membrane-bound. The dimer structure reveals some intriguing features that may have fundamental roles in the adhesive and enzymatic functions of hVAP-1, especially regarding the role of hVAP-1 in inflammation, lymphocyte attachment, and signaling. Firstly, Leu469 at the substrate channel may play a key role in controlling the substrate entry; depending on its conformation, it either blocks or gives access to the active site. Secondly, sugar units are clearly observed at two of the six predicted N-glycosylation sites. Moreover, mutagenesis analysis showed that all of the predicted sites were glycosylated in the protein used for crystallization. Thirdly, the existence of a solvent-exposed RGD motif at the entrance to each active site in hVAP-1 suggests that it may have a functional role.

Crystal structure of the human vascular adhesion protein-1: unique structural features with functional implications.,Airenne TT, Nymalm Y, Kidron H, Smith DJ, Pihlavisto M, Salmi M, Jalkanen S, Johnson MS, Salminen TA Protein Sci. 2005 Aug;14(8):1964-74. PMID:16046623^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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
↑ Airenne TT, Nymalm Y, Kidron H, Smith DJ, Pihlavisto M, Salmi M, Jalkanen S, Johnson MS, Salminen TA. Crystal structure of the human vascular adhesion protein-1: unique structural features with functional implications. Protein Sci. 2005 Aug;14(8):1964-74. PMID:16046623 doi:http://dx.doi.org/14/8/1964

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OCA

[1] 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

[2] 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

[3] 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

[4] Airenne TT, Nymalm Y, Kidron H, Smith DJ, Pihlavisto M, Salmi M, Jalkanen S, Johnson MS, Salminen TA. Crystal structure of the human vascular adhesion protein-1: unique structural features with functional implications. Protein Sci. 2005 Aug;14(8):1964-74. PMID:16046623 doi:http://dx.doi.org/14/8/1964

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