2w2q: Difference between revisions
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2w2q]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2W2Q OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2W2Q FirstGlance]. <br> | <table><tr><td colspan='2'>[[2w2q]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2W2Q OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2W2Q FirstGlance]. <br> | ||
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>< | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr> | ||
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1f5y|1f5y]], [[1n7d|1n7d]], [[1i0u|1i0u]], [[1d2j|1d2j]], [[1hz8|1hz8]], [[1f8z|1f8z]], [[1ajj|1ajj]], [[1ldl|1ldl]], [[1ldr|1ldr]], [[1ijq|1ijq]], [[1hj7|1hj7]], [[2w2m|2w2m]], [[2w2o|2w2o]], [[2fcw|2fcw]], [[1lrx|1lrx]], [[2w2n|2w2n]], [[2w2p|2w2p]], [[1xfe|1xfe]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1f5y|1f5y]], [[1n7d|1n7d]], [[1i0u|1i0u]], [[1d2j|1d2j]], [[1hz8|1hz8]], [[1f8z|1f8z]], [[1ajj|1ajj]], [[1ldl|1ldl]], [[1ldr|1ldr]], [[1ijq|1ijq]], [[1hj7|1hj7]], [[2w2m|2w2m]], [[2w2o|2w2o]], [[2fcw|2fcw]], [[1lrx|1lrx]], [[2w2n|2w2n]], [[2w2p|2w2p]], [[1xfe|1xfe]]</td></tr> | ||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2w2q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2w2q OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2w2q RCSB], [http://www.ebi.ac.uk/pdbsum/2w2q PDBsum]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2w2q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2w2q OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2w2q RCSB], [http://www.ebi.ac.uk/pdbsum/2w2q PDBsum]</span></td></tr> | ||
<table> | </table> | ||
== Disease == | == Disease == | ||
[[http://www.uniprot.org/uniprot/LDLR_HUMAN LDLR_HUMAN]] Defects in LDLR are the cause of familial hypercholesterolemia (FH) [MIM:[http://omim.org/entry/143890 143890]]; a common autosomal semi-dominant disease that affects about 1 in 500 individuals. The receptor defect impairs the catabolism of LDL, and the resultant elevation in plasma LDL-cholesterol promotes deposition of cholesterol in the skin (xanthelasma), tendons (xanthomas), and coronary arteries (atherosclerosis).<ref>PMID:3263645</ref> <ref>PMID:2569482</ref> <ref>PMID:3955657</ref> <ref>PMID:8347689</ref> <ref>PMID:2318961</ref> <ref>PMID:1446662</ref> <ref>PMID:1867200</ref> <ref>PMID:8462973</ref> <ref>PMID:8168830</ref> <ref>PMID:2726768</ref> <ref>PMID:1464748</ref> <ref>PMID:7573037</ref> <ref>PMID:7583548</ref> <ref>PMID:7550239</ref> <ref>PMID:7635461</ref> <ref>PMID:7635482</ref> <ref>PMID:7649546</ref> <ref>PMID:7649549</ref> <ref>PMID:8740918</ref> <ref>PMID:8664907</ref> <ref>PMID:9026534</ref> <ref>PMID:9254862</ref> <ref>PMID:9143924</ref> <ref>PMID:9259195</ref> <ref>PMID:9104431</ref> <ref>PMID:9654205</ref> <ref>PMID:9452094</ref> <ref>PMID:9452095</ref> <ref>PMID:9452118</ref> <ref>PMID:10206683</ref> <ref>PMID:10660340</ref> [:]<ref>PMID:9852677</ref> <ref>PMID:9678702</ref> <ref>PMID:10422803</ref> <ref>PMID:10090484</ref> <ref>PMID:10447263</ref> <ref>PMID:10978268</ref> <ref>PMID:10980548</ref> <ref>PMID:10882754</ref> <ref>PMID:11298688</ref> <ref>PMID:17142622</ref> <ref>PMID:19319977</ref> <ref>PMID:22160468</ref> | [[http://www.uniprot.org/uniprot/LDLR_HUMAN LDLR_HUMAN]] Defects in LDLR are the cause of familial hypercholesterolemia (FH) [MIM:[http://omim.org/entry/143890 143890]]; a common autosomal semi-dominant disease that affects about 1 in 500 individuals. The receptor defect impairs the catabolism of LDL, and the resultant elevation in plasma LDL-cholesterol promotes deposition of cholesterol in the skin (xanthelasma), tendons (xanthomas), and coronary arteries (atherosclerosis).<ref>PMID:3263645</ref> <ref>PMID:2569482</ref> <ref>PMID:3955657</ref> <ref>PMID:8347689</ref> <ref>PMID:2318961</ref> <ref>PMID:1446662</ref> <ref>PMID:1867200</ref> <ref>PMID:8462973</ref> <ref>PMID:8168830</ref> <ref>PMID:2726768</ref> <ref>PMID:1464748</ref> <ref>PMID:7573037</ref> <ref>PMID:7583548</ref> <ref>PMID:7550239</ref> <ref>PMID:7635461</ref> <ref>PMID:7635482</ref> <ref>PMID:7649546</ref> <ref>PMID:7649549</ref> <ref>PMID:8740918</ref> <ref>PMID:8664907</ref> <ref>PMID:9026534</ref> <ref>PMID:9254862</ref> <ref>PMID:9143924</ref> <ref>PMID:9259195</ref> <ref>PMID:9104431</ref> <ref>PMID:9654205</ref> <ref>PMID:9452094</ref> <ref>PMID:9452095</ref> <ref>PMID:9452118</ref> <ref>PMID:10206683</ref> <ref>PMID:10660340</ref> [:]<ref>PMID:9852677</ref> <ref>PMID:9678702</ref> <ref>PMID:10422803</ref> <ref>PMID:10090484</ref> <ref>PMID:10447263</ref> <ref>PMID:10978268</ref> <ref>PMID:10980548</ref> <ref>PMID:10882754</ref> <ref>PMID:11298688</ref> <ref>PMID:17142622</ref> <ref>PMID:19319977</ref> <ref>PMID:22160468</ref> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Baysarowich, J | [[Category: Baysarowich, J]] | ||
[[Category: Bottomley, M J | [[Category: Bottomley, M J]] | ||
[[Category: Calzetta, A | [[Category: Calzetta, A]] | ||
[[Category: Carfi, A | [[Category: Carfi, A]] | ||
[[Category: Cirillo, A | [[Category: Cirillo, A]] | ||
[[Category: Cubbon, R M | [[Category: Cubbon, R M]] | ||
[[Category: Cummings, R T | [[Category: Cummings, R T]] | ||
[[Category: Fisher, T S | [[Category: Fisher, T S]] | ||
[[Category: Francesco, R De | [[Category: Francesco, R De]] | ||
[[Category: Mattu, M | [[Category: Mattu, M]] | ||
[[Category: Noto, A | [[Category: Noto, A]] | ||
[[Category: Orsatti, L | [[Category: Orsatti, L]] | ||
[[Category: Ruggeri, L | [[Category: Ruggeri, L]] | ||
[[Category: Santoro, J C | [[Category: Santoro, J C]] | ||
[[Category: Sitlani, A | [[Category: Sitlani, A]] | ||
[[Category: Sparrow, C P | [[Category: Sparrow, C P]] | ||
[[Category: Surdo, P Lo | [[Category: Surdo, P Lo]] | ||
[[Category: Talamo, F | [[Category: Talamo, F]] | ||
[[Category: Cardiovascular disease]] | [[Category: Cardiovascular disease]] | ||
[[Category: Egf]] | [[Category: Egf]] |
Revision as of 21:00, 19 January 2015
PCSK9-DELTAC D374H MUTANT BOUND TO WT EGF-A OF LDLRPCSK9-DELTAC D374H MUTANT BOUND TO WT EGF-A OF LDLR
Structural highlights
Disease[LDLR_HUMAN] Defects in LDLR are the cause of familial hypercholesterolemia (FH) [MIM:143890]; a common autosomal semi-dominant disease that affects about 1 in 500 individuals. The receptor defect impairs the catabolism of LDL, and the resultant elevation in plasma LDL-cholesterol promotes deposition of cholesterol in the skin (xanthelasma), tendons (xanthomas), and coronary arteries (atherosclerosis).[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [:][32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] Function[LDLR_HUMAN] Binds LDL, the major cholesterol-carrying lipoprotein of plasma, and transports it into cells by endocytosis. In order to be internalized, the receptor-ligand complexes must first cluster into clathrin-coated pits. In case of HIV-1 infection, functions as a receptor for extracellular Tat in neurons, mediating its internalization in uninfected cells. 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 PubMedPCSK9 regulates low density lipoprotein receptor (LDLR) levels and consequently is a target for the prevention of atherosclerosis and coronary heart disease. Here we studied the interaction, of LDLR EGF(A/AB) repeats with PCSK9. We show that PCSK9 binds the EGF(AB) repeats in a pH-dependent manner. Although the PCSK9 C-terminal domain is not involved in LDLR binding, PCSK9 autocleavage is required. Moreover, we report the x-ray structure of the PCSK9DeltaC-EGF(AB) complex at neutral pH. Compared with the low pH PCSK9-EGF(A) structure, the new structure revealed rearrangement of the EGF(A) His-306 side chain and disruption of the salt bridge with PCSK9 Asp-374, thus suggesting the basis for enhanced interaction at low pH. In addition, the structure of PCSK9DeltaC bound to EGF(AB)(H306Y), a mutant associated with familial hypercholesterolemia (FH), reveals that the Tyr-306 side chain forms a hydrogen bond with PCSK9 Asp-374, thus mimicking His-306 in the low pH conformation. Consistently, Tyr-306 confers increased affinity for PCSK9. Importantly, we found that although the EGF(AB)(H306Y)-PCSK9 interaction is pH-independent, LDLR(H306Y) binds PCSK9 50-fold better at low pH, suggesting that factors other than His-306 contribute to the pH dependence of PCSK9-LDLR binding. Further, we determined the structures of EGF(AB) bound to PCSK9DeltaC containing the FH-associated D374Y and D374H mutations, revealing additional interactions with EGF(A) mediated by Tyr-374/His-374 and providing a rationale for their disease phenotypes. Finally, we report the inhibitory properties of EGF repeats in a cellular assay measuring LDL uptake. Structural and biochemical characterization of the wild type PCSK9-EGF(AB) complex and natural familial hypercholesterolemia mutants.,Bottomley MJ, Cirillo A, Orsatti L, Ruggeri L, Fisher TS, Santoro JC, Cummings RT, Cubbon RM, Lo Surdo P, Calzetta A, Noto A, Baysarowich J, Mattu M, Talamo F, De Francesco R, Sparrow CP, Sitlani A, Carfi A J Biol Chem. 2009 Jan 9;284(2):1313-23. Epub 2008 Nov 10. PMID:19001363[44] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)
OCA- Homo sapiens
- Baysarowich, J
- Bottomley, M J
- Calzetta, A
- Carfi, A
- Cirillo, A
- Cubbon, R M
- Cummings, R T
- Fisher, T S
- Francesco, R De
- Mattu, M
- Noto, A
- Orsatti, L
- Ruggeri, L
- Santoro, J C
- Sitlani, A
- Sparrow, C P
- Surdo, P Lo
- Talamo, F
- Cardiovascular disease
- Egf
- Familial hypercholesterolemia
- Hydrolase
- Hydrolase-receptor complex
- Ldlr
- Lipid metabolism
- Lipid transport
- Low-density lipoprotein receptor
- Pcsk9
- Proprotein convertase
- Receptor
- Serine protease
- Steroid metabolism