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| | == Structural highlights == | | == Structural highlights == |
| | <table><tr><td colspan='2'>[[7v0m]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7V0M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7V0M FirstGlance]. <br> | | <table><tr><td colspan='2'>[[7v0m]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7V0M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7V0M FirstGlance]. <br> |
| - | </td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7v0m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7v0m OCA], [https://pdbe.org/7v0m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7v0m RCSB], [https://www.ebi.ac.uk/pdbsum/7v0m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7v0m ProSAT]</span></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 2.7Å</td></tr> |
| | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7v0m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7v0m OCA], [https://pdbe.org/7v0m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7v0m RCSB], [https://www.ebi.ac.uk/pdbsum/7v0m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7v0m ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Disease == | | == Disease == |
| - | [[https://www.uniprot.org/uniprot/ANK1_HUMAN ANK1_HUMAN]] Defects in ANK1 are a cause of spherocytosis type 1 (SPH1) [MIM:[https://omim.org/entry/182900 182900]]; also called hereditary spherocytosis type 1 (HS1). Spherocytosis is a hematologic disorder leading to chronic hemolytic anemia and characterized by numerous abnormally shaped erythrocytes which are generally spheroidal. Inheritance can be autosomal dominant or recessive.<ref>PMID:8640229</ref> <ref>PMID:11102985</ref>
| + | [https://www.uniprot.org/uniprot/ANK1_HUMAN ANK1_HUMAN] Defects in ANK1 are a cause of spherocytosis type 1 (SPH1) [MIM:[https://omim.org/entry/182900 182900]; also called hereditary spherocytosis type 1 (HS1). Spherocytosis is a hematologic disorder leading to chronic hemolytic anemia and characterized by numerous abnormally shaped erythrocytes which are generally spheroidal. Inheritance can be autosomal dominant or recessive.<ref>PMID:8640229</ref> <ref>PMID:11102985</ref> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/ANK1_HUMAN ANK1_HUMAN]] Attaches integral membrane proteins to cytoskeletal elements; binds to the erythrocyte membrane protein band 4.2, to Na-K ATPase, to the lymphocyte membrane protein GP85, and to the cytoskeletal proteins fodrin, tubulin, vimentin and desmin. Erythrocyte ankyrins also link spectrin (beta chain) to the cytoplasmic domain of the erythrocytes anion exchange protein; they retain most or all of these binding functions.<ref>PMID:12456646</ref> Isoform Mu17 together with obscurin in skeletal muscle may provide a molecular link between the sarcoplasmic reticulum and myofibrils.<ref>PMID:12456646</ref>
| + | [https://www.uniprot.org/uniprot/ANK1_HUMAN ANK1_HUMAN] Attaches integral membrane proteins to cytoskeletal elements; binds to the erythrocyte membrane protein band 4.2, to Na-K ATPase, to the lymphocyte membrane protein GP85, and to the cytoskeletal proteins fodrin, tubulin, vimentin and desmin. Erythrocyte ankyrins also link spectrin (beta chain) to the cytoplasmic domain of the erythrocytes anion exchange protein; they retain most or all of these binding functions.<ref>PMID:12456646</ref> Isoform Mu17 together with obscurin in skeletal muscle may provide a molecular link between the sarcoplasmic reticulum and myofibrils.<ref>PMID:12456646</ref> |
| - | <div style="background-color:#fffaf0;">
| + | |
| - | == Publication Abstract from PubMed ==
| + | |
| - | The stability and shape of the erythrocyte membrane is provided by the ankyrin-1 complex, but how it tethers the spectrin-actin cytoskeleton to the lipid bilayer and the nature of its association with the band 3 anion exchanger and the Rhesus glycoproteins remains unknown. Here we present structures of ankyrin-1 complexes purified from human erythrocytes. We reveal the architecture of a core complex of ankyrin-1, the Rhesus proteins RhAG and RhCE, the band 3 anion exchanger, protein 4.2, glycophorin A and glycophorin B. The distinct T-shaped conformation of membrane-bound ankyrin-1 facilitates recognition of RhCE and, unexpectedly, the water channel aquaporin-1. Together, our results uncover the molecular details of ankyrin-1 association with the erythrocyte membrane, and illustrate the mechanism of ankyrin-mediated membrane protein clustering.
| + | |
| | | | |
| - | Architecture of the human erythrocyte ankyrin-1 complex.,Vallese F, Kim K, Yen LY, Johnston JD, Noble AJ, Cali T, Clarke OB Nat Struct Mol Biol. 2022 Jul;29(7):706-718. doi: 10.1038/s41594-022-00792-w., Epub 2022 Jul 14. PMID:35835865<ref>PMID:35835865</ref>
| + | ==See Also== |
| - | | + | *[[Anion exchange protein 3D structures|Anion exchange protein 3D structures]] |
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
| + | *[[Ankyrin 3D structures|Ankyrin 3D structures]] |
| - | </div>
| + | |
| - | <div class="pdbe-citations 7v0m" style="background-color:#fffaf0;"></div>
| + | |
| | == References == | | == References == |
| | <references/> | | <references/> |
| Structural highlights
Disease
ANK1_HUMAN Defects in ANK1 are a cause of spherocytosis type 1 (SPH1) [MIM:182900; also called hereditary spherocytosis type 1 (HS1). Spherocytosis is a hematologic disorder leading to chronic hemolytic anemia and characterized by numerous abnormally shaped erythrocytes which are generally spheroidal. Inheritance can be autosomal dominant or recessive.[1] [2]
Function
ANK1_HUMAN Attaches integral membrane proteins to cytoskeletal elements; binds to the erythrocyte membrane protein band 4.2, to Na-K ATPase, to the lymphocyte membrane protein GP85, and to the cytoskeletal proteins fodrin, tubulin, vimentin and desmin. Erythrocyte ankyrins also link spectrin (beta chain) to the cytoplasmic domain of the erythrocytes anion exchange protein; they retain most or all of these binding functions.[3] Isoform Mu17 together with obscurin in skeletal muscle may provide a molecular link between the sarcoplasmic reticulum and myofibrils.[4]
See Also
References
- ↑ Eber SW, Gonzalez JM, Lux ML, Scarpa AL, Tse WT, Dornwell M, Herbers J, Kugler W, Ozcan R, Pekrun A, Gallagher PG, Schroter W, Forget BG, Lux SE. Ankyrin-1 mutations are a major cause of dominant and recessive hereditary spherocytosis. Nat Genet. 1996 Jun;13(2):214-8. PMID:8640229 doi:10.1038/ng0696-214
- ↑ Leite RC, Basseres DS, Ferreira JS, Alberto FL, Costa FF, Saad ST. Low frequency of ankyrin mutations in hereditary spherocytosis: identification of three novel mutations. Hum Mutat. 2000 Dec;16(6):529. PMID:11102985 doi:<529::AID-HUMU13>3.0.CO;2-N 10.1002/1098-1004(200012)16:6<529::AID-HUMU13>3.0.CO;2-N
- ↑ Michaely P, Tomchick DR, Machius M, Anderson RG. Crystal structure of a 12 ANK repeat stack from human ankyrinR. EMBO J. 2002 Dec 2;21(23):6387-96. PMID:12456646
- ↑ Michaely P, Tomchick DR, Machius M, Anderson RG. Crystal structure of a 12 ANK repeat stack from human ankyrinR. EMBO J. 2002 Dec 2;21(23):6387-96. PMID:12456646
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