The 1.9-A crystal structure of the noncollagenous (NC1) domain of human placenta collagen IV shows stabilization via a novel type of covalent Met-Lys cross-link
1li1 is a 6 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
CO4A1_HUMAN Defects in COL4A1 are a cause of brain small vessel disease with hemorrhage (BSVDH) [MIM:607595. Brain small vessel diseases underlie 20 to 30 percent of ischemic strokes and a larger proportion of intracerebral hemorrhages. Inheritance is autosomal dominant.[1][2][3][4][5] Defects in COL4A1 are the cause of hereditary angiopathy with nephropathy aneurysms and muscle cramps (HANAC) [MIM:611773. The clinical renal manifestations include hematuria and bilateral large cysts. Histologic analysis revealed complex basement membrane defects in kidney and skin. The systemic angiopathy appears to affect both small vessels and large arteries.[6][7] Defects in COL4A1 are a cause of familial porencephaly (POREN1) [MIM:175780. Porencephaly is a term used for any cavitation or cerebrospinal fluid-filled cyst in the brain. Porencephaly type 1 is usually unilateral and results from focal destructive lesions such as fetal vascular occlusion or birth trauma. Type 2, or schizencephalic porencephaly, is usually symmetric and represents a primary defect or arrest in the development of the cerebral ventricles.[8][9][10]
Function
CO4A1_HUMAN Type IV collagen is the major structural component of glomerular basement membranes (GBM), forming a 'chicken-wire' meshwork together with laminins, proteoglycans and entactin/nidogen.[11][12][13][14] Arresten, comprising the C-terminal NC1 domain, inhibits angiogenesis and tumor formation. The C-terminal half is found to possess the anti-angiogenic activity. Specifically inhibits endothelial cell proliferation, migration and tube formation. Inhibits expression of hypoxia-inducible factor 1alpha and ERK1/2 and p38 MAPK activation. Ligand for alpha1/beta1 integrin.[15][16][17][18]
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
Triple-helical collagen IV protomers associate through their N- and C-termini forming a three-dimensional network, which provides basement membranes with an anchoring scaffold and mechanical strength. The noncollagenous (NC1) domain of the C-terminal junction between two adjacent collagen IV protomers from human placenta was crystallized and its 1.9-A structure was solved by multiple anomalous diffraction (MAD) phasing. This hexameric NC1 particle is composed of two trimeric caps, which interact through a large planar interface. Each cap is formed by two alpha 1 fragments and one alpha 2 fragment with a similar previously uncharacterized fold, segmentally arranged around an axial tunnel. Each monomer chain folds into two structurally very similar subdomains, which each contain a finger-like hairpin loop that inserts into a six-stranded beta-sheet of the neighboring subdomain of the same or the adjacent chain. Thus each trimer forms a quite regular, but nonclassical, sixfold propeller. The trimer-trimer interaction is further stabilized by a previously uncharacterized type of covalent cross-link between the side chains of a Met and a Lys residue of the alpha 1 and alpha 2 chains from opposite trimers, explaining previous findings of nonreducible cross-links in NC1. This structure provides insights into NC1-related diseases such as Goodpasture and Alport syndromes.
The 1.9-A crystal structure of the noncollagenous (NC1) domain of human placenta collagen IV shows stabilization via a novel type of covalent Met-Lys cross-link.,Than ME, Henrich S, Huber R, Ries A, Mann K, Kuhn K, Timpl R, Bourenkov GP, Bartunik HD, Bode W Proc Natl Acad Sci U S A. 2002 May 14;99(10):6607-12. PMID:12011424[19]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
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↑Sibon I, Coupry I, Menegon P, Bouchet JP, Gorry P, Burgelin I, Calvas P, Orignac I, Dousset V, Lacombe D, Orgogozo JM, Arveiler B, Goizet C. COL4A1 mutation in Axenfeld-Rieger anomaly with leukoencephalopathy and stroke. Ann Neurol. 2007 Aug;62(2):177-84. PMID:17696175 doi:10.1002/ana.21191
↑Vahedi K, Kubis N, Boukobza M, Arnoult M, Massin P, Tournier-Lasserve E, Bousser MG. COL4A1 mutation in a patient with sporadic, recurrent intracerebral hemorrhage. Stroke. 2007 May;38(5):1461-4. Epub 2007 Mar 22. PMID:17379824 doi:10.1161/STROKEAHA.106.475194
↑Coupry I, Sibon I, Mortemousque B, Rouanet F, Mine M, Goizet C. Ophthalmological features associated with COL4A1 mutations. Arch Ophthalmol. 2010 Apr;128(4):483-9. doi: 10.1001/archophthalmol.2010.42. PMID:20385946 doi:10.1001/archophthalmol.2010.42
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↑Plaisier E, Chen Z, Gekeler F, Benhassine S, Dahan K, Marro B, Alamowitch S, Paques M, Ronco P. Novel COL4A1 mutations associated with HANAC syndrome: a role for the triple helical CB3[IV] domain. Am J Med Genet A. 2010 Oct;152A(10):2550-5. doi: 10.1002/ajmg.a.33659. PMID:20818663 doi:10.1002/ajmg.a.33659
↑Gould DB, Phalan FC, Breedveld GJ, van Mil SE, Smith RS, Schimenti JC, Aguglia U, van der Knaap MS, Heutink P, John SW. Mutations in Col4a1 cause perinatal cerebral hemorrhage and porencephaly. Science. 2005 May 20;308(5725):1167-71. PMID:15905400 doi:10.1126/science.1109418
↑Breedveld G, de Coo IF, Lequin MH, Arts WF, Heutink P, Gould DB, John SW, Oostra B, Mancini GM. Novel mutations in three families confirm a major role of COL4A1 in hereditary porencephaly. J Med Genet. 2006 Jun;43(6):490-5. Epub 2005 Aug 17. PMID:16107487 doi:10.1136/jmg.2005.035584
↑de Vries LS, Koopman C, Groenendaal F, Van Schooneveld M, Verheijen FW, Verbeek E, Witkamp TD, van der Worp HB, Mancini G. COL4A1 mutation in two preterm siblings with antenatal onset of parenchymal hemorrhage. Ann Neurol. 2009 Jan;65(1):12-8. doi: 10.1002/ana.21525. PMID:19194877 doi:10.1002/ana.21525
↑Colorado PC, Torre A, Kamphaus G, Maeshima Y, Hopfer H, Takahashi K, Volk R, Zamborsky ED, Herman S, Sarkar PK, Ericksen MB, Dhanabal M, Simons M, Post M, Kufe DW, Weichselbaum RR, Sukhatme VP, Kalluri R. Anti-angiogenic cues from vascular basement membrane collagen. Cancer Res. 2000 May 1;60(9):2520-6. PMID:10811134
↑Zheng JP, Tang HY, Chen XJ, Yu BF, Xie J, Wu TC. Construction of recombinant plasmid and prokaryotic expression in E. coli and biological activity analysis of human placenta arresten gene. Hepatobiliary Pancreat Dis Int. 2006 Feb;5(1):74-9. PMID:16481288
↑Sudhakar A, Nyberg P, Keshamouni VG, Mannam AP, Li J, Sugimoto H, Cosgrove D, Kalluri R. Human alpha1 type IV collagen NC1 domain exhibits distinct antiangiogenic activity mediated by alpha1beta1 integrin. J Clin Invest. 2005 Oct;115(10):2801-10. Epub 2005 Sep 8. PMID:16151532 doi:10.1172/JCI24813
↑Nyberg P, Xie L, Sugimoto H, Colorado P, Sund M, Holthaus K, Sudhakar A, Salo T, Kalluri R. Characterization of the anti-angiogenic properties of arresten, an alpha1beta1 integrin-dependent collagen-derived tumor suppressor. Exp Cell Res. 2008 Nov 1;314(18):3292-305. doi: 10.1016/j.yexcr.2008.08.011. Epub, 2008 Aug 26. PMID:18775695 doi:10.1016/j.yexcr.2008.08.011
↑Colorado PC, Torre A, Kamphaus G, Maeshima Y, Hopfer H, Takahashi K, Volk R, Zamborsky ED, Herman S, Sarkar PK, Ericksen MB, Dhanabal M, Simons M, Post M, Kufe DW, Weichselbaum RR, Sukhatme VP, Kalluri R. Anti-angiogenic cues from vascular basement membrane collagen. Cancer Res. 2000 May 1;60(9):2520-6. PMID:10811134
↑Zheng JP, Tang HY, Chen XJ, Yu BF, Xie J, Wu TC. Construction of recombinant plasmid and prokaryotic expression in E. coli and biological activity analysis of human placenta arresten gene. Hepatobiliary Pancreat Dis Int. 2006 Feb;5(1):74-9. PMID:16481288
↑Sudhakar A, Nyberg P, Keshamouni VG, Mannam AP, Li J, Sugimoto H, Cosgrove D, Kalluri R. Human alpha1 type IV collagen NC1 domain exhibits distinct antiangiogenic activity mediated by alpha1beta1 integrin. J Clin Invest. 2005 Oct;115(10):2801-10. Epub 2005 Sep 8. PMID:16151532 doi:10.1172/JCI24813
↑Nyberg P, Xie L, Sugimoto H, Colorado P, Sund M, Holthaus K, Sudhakar A, Salo T, Kalluri R. Characterization of the anti-angiogenic properties of arresten, an alpha1beta1 integrin-dependent collagen-derived tumor suppressor. Exp Cell Res. 2008 Nov 1;314(18):3292-305. doi: 10.1016/j.yexcr.2008.08.011. Epub, 2008 Aug 26. PMID:18775695 doi:10.1016/j.yexcr.2008.08.011
↑Than ME, Henrich S, Huber R, Ries A, Mann K, Kuhn K, Timpl R, Bourenkov GP, Bartunik HD, Bode W. The 1.9-A crystal structure of the noncollagenous (NC1) domain of human placenta collagen IV shows stabilization via a novel type of covalent Met-Lys cross-link. Proc Natl Acad Sci U S A. 2002 May 14;99(10):6607-12. PMID:12011424 doi:10.1073/pnas.062183499
