1bzk

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{{Seed}}
 
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[[Image:1bzk.png|left|200px]]
 
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==STRUCTURAL STUDIES ON THE EFFECTS OF THE DELETION IN THE RED CELL ANION EXCHANGER (BAND3, AE1) ASSOCIATED WITH SOUTH EAST ASIAN OVALOCYTOSIS.==
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The line below this paragraph, containing "STRUCTURE_1bzk", creates the "Structure Box" on the page.
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<StructureSection load='1bzk' size='340' side='right'caption='[[1bzk]]' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1bzk]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BZK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BZK FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene></td></tr>
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{{STRUCTURE_1bzk| PDB=1bzk | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1bzk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bzk OCA], [https://pdbe.org/1bzk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bzk RCSB], [https://www.ebi.ac.uk/pdbsum/1bzk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bzk ProSAT]</span></td></tr>
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</table>
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== Disease ==
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[https://www.uniprot.org/uniprot/B3AT_HUMAN B3AT_HUMAN] Defects in SLC4A1 are the cause of elliptocytosis type 4 (EL4) [MIM:[https://omim.org/entry/109270 109270]. EL4 is a Rhesus-unlinked form of hereditary elliptocytosis, a genetically heterogeneous, autosomal dominant hematologic disorder. It is characterized by variable hemolytic anemia and elliptical or oval red cell shape.<ref>PMID:1722314</ref> <ref>PMID:1538405</ref> Defects in SLC4A1 are the cause of spherocytosis type 4 (SPH4) [MIM:[https://omim.org/entry/612653 612653]; also known as hereditary spherocytosis type 4 (HS4). Spherocytosis is a hematologic disorder leading to chronic hemolytic anemia and characterized by numerous abnormally shaped erythrocytes which are generally spheroidal.<ref>PMID:8547122</ref> <ref>PMID:1378323</ref> <ref>PMID:7530501</ref> <ref>PMID:8943874</ref> <ref>PMID:8640229</ref> <ref>PMID:9207478</ref> <ref>PMID:9012689</ref> <ref>PMID:9233560</ref> <ref>PMID:9973643</ref> <ref>PMID:10580570</ref> <ref>PMID:10942416</ref> <ref>PMID:10745622</ref> <ref>PMID:11380459</ref> <ref>PMID:15813913</ref> <ref>PMID:16227998</ref> Defects in SLC4A1 are the cause of renal tubular acidosis, distal, autosomal dominant (AD-dRTA) [MIM:[https://omim.org/entry/179800 179800]. A disease characterized by reduced ability to acidify urine, variable hyperchloremic hypokalemic metabolic acidosis, nephrocalcinosis, and nephrolithiasis. Defects in SLC4A1 are the cause of renal tubular acidosis, distal, with hemolytic anemia (dRTA-HA) [MIM:[https://omim.org/entry/611590 611590]. A disease characterized by the association of hemolytic anemia with distal renal tubular acidosis, the reduced ability to acidify urine resulting in variable hyperchloremic hypokalemic metabolic acidosis, nephrocalcinosis, and nephrolithiasis. Defects in SLC4A1 are the cause of renal tubular acidosis, distal, with normal red cell morphology (dRTA-NRC) [MIM:[https://omim.org/entry/611590 611590]. A disease characterized by reduced ability to acidify urine, variable hyperchloremic hypokalemic metabolic acidosis, nephrocalcinosis, and nephrolithiasis.
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== Function ==
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[https://www.uniprot.org/uniprot/B3AT_HUMAN B3AT_HUMAN] Band 3 is the major integral glycoprotein of the erythrocyte membrane. Band 3 has two functional domains. Its integral domain mediates a 1:1 exchange of inorganic anions across the membrane, whereas its cytoplasmic domain provides binding sites for cytoskeletal proteins, glycolytic enzymes, and hemoglobin.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/bz/1bzk_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1bzk ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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We have carried out a solution-state NMR study of synthetic peptides patterned on the first membrane span of normal human band 3, and the same region of the mutant band 3 present in Southeast Asian ovalocytosis (SAO) which has a nine amino acid deletion. In 1:1 (v/v) chloroform/methanol, the 42 residue normal peptide (R389-K430) consisted of three helical regions. The slow solvent exchange of backbone amide protons revealed the helix from P403 to A416 was more stable than the "cytoplasmic" N-terminal helix from P391 to A400. These helices were separated by a sharp bend at P403, which is probably located at the boundary between the cytoplasmic domain and the first transmembrane span. The SAO deletion (A400-A408) removed the bend at P403, to leave a stable helix from P391 to A416 containing the residuum of the normal first transmembrane helix and with a hydrophobic turn replaced by a polar turn in the SAO peptide. Insertion of fragments of normal band 3 and band 3 SAO into microsomal membranes was investigated using a cell free translation system. A fragment composed of the cytoplasmic domain and the putative first membrane domain of normal band 3 (B3(1)) inserted stably into the membrane. However, the corresponding fragment of band 3 SAO [SAO(1)] did not integrate stably into membranes. Our results suggest that in SAO band 3, the region of the first membrane span of normal band 3 does not integrate properly into the membrane because it lacks a sufficiently long hydrophobic segment, and the deletion also disrupts a conserved structural subdomain at the membrane surface.
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===STRUCTURAL STUDIES ON THE EFFECTS OF THE DELETION IN THE RED CELL ANION EXCHANGER (BAND3, AE1) ASSOCIATED WITH SOUTH EAST ASIAN OVALOCYTOSIS.===
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Structural studies on the effects of the deletion in the red cell anion exchanger (band 3, AE1) associated with South East Asian ovalocytosis.,Chambers EJ, Bloomberg GB, Ring SM, Tanner MJ J Mol Biol. 1999 Jan 22;285(3):1289-307. PMID:9887277<ref>PMID:9887277</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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The line below this paragraph, {{ABSTRACT_PUBMED_9887277}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 1bzk" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 9887277 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_9887277}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Homo sapiens]]
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1BZK is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BZK OCA].
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[[Category: Large Structures]]
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[[Category: Bloomberg GB]]
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==Reference==
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[[Category: Chambers EJ]]
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<ref group="xtra">PMID:9887277</ref><references group="xtra"/>
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[[Category: Ring SM]]
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[[Category: Bloomberg, G B.]]
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[[Category: Tanner MJA]]
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[[Category: Chambers, E J.]]
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[[Category: Ring, S M.]]
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[[Category: Tanner, M J.A.]]
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[[Category: Human erythrocyte anion transporter]]
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[[Category: Nmr]]
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[[Category: Synthetic peptide]]
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[[Category: Transmembrane]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Feb 18 00:49:21 2009''
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Current revision

STRUCTURAL STUDIES ON THE EFFECTS OF THE DELETION IN THE RED CELL ANION EXCHANGER (BAND3, AE1) ASSOCIATED WITH SOUTH EAST ASIAN OVALOCYTOSIS.

PDB ID 1bzk

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