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{{STRUCTURE_4ky9|  PDB=4ky9  |  SCENE=  }}
===Structural and Functional Analysis of a Putative Substrate Access Tunnel in the Cytosolic Domain of Human Anion Exchanger 1===


==Disease==
==Structural and Functional Analysis of a Putative Substrate Access Tunnel in the Cytosolic Domain of Human Anion Exchanger 1==
[[http://www.uniprot.org/uniprot/B3AT_HUMAN B3AT_HUMAN]] Defects in SLC4A1 are the cause of elliptocytosis type 4 (EL4) [MIM:[http://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:[http://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:[http://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:[http://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:[http://omim.org/entry/611590 611590]]. A disease characterized by reduced ability to acidify urine, variable hyperchloremic hypokalemic metabolic acidosis, nephrocalcinosis, and nephrolithiasis.  
<StructureSection load='4ky9' size='340' side='right'caption='[[4ky9]], [[Resolution|resolution]] 2.23&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4ky9]] 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=4KY9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4KY9 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.23&#8491;</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=4ky9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ky9 OCA], [https://pdbe.org/4ky9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4ky9 RCSB], [https://www.ebi.ac.uk/pdbsum/4ky9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4ky9 ProSAT]</span></td></tr>
</table>
== Disease ==
[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.
== Function ==
[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.


==Function==
==See Also==
[[http://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.
*[[Anion exchange protein 3D structures|Anion exchange protein 3D structures]]
 
== References ==
==About this Structure==
<references/>
[[4ky9]] is a 2 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=4KY9 OCA].
__TOC__
 
</StructureSection>
==Reference==
<references group="xtra"/><references/>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Calmettes, C.]]
[[Category: Large Structures]]
[[Category: Moraes, T F.]]
[[Category: Calmettes C]]
[[Category: Reithmeier, R A.F.]]
[[Category: Moraes TF]]
[[Category: Shnitsar, V.]]
[[Category: Reithmeier RAF]]
[[Category: Cytosolic domain]]
[[Category: Shnitsar V]]
[[Category: Membrane protein]]

Latest revision as of 15:16, 1 March 2024

Structural and Functional Analysis of a Putative Substrate Access Tunnel in the Cytosolic Domain of Human Anion Exchanger 1Structural and Functional Analysis of a Putative Substrate Access Tunnel in the Cytosolic Domain of Human Anion Exchanger 1

Structural highlights

4ky9 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 2.23Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

B3AT_HUMAN Defects in SLC4A1 are the cause of elliptocytosis type 4 (EL4) [MIM: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.[1] [2] Defects in SLC4A1 are the cause of spherocytosis type 4 (SPH4) [MIM: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.[3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] Defects in SLC4A1 are the cause of renal tubular acidosis, distal, autosomal dominant (AD-dRTA) [MIM: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: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:611590. A disease characterized by reduced ability to acidify urine, variable hyperchloremic hypokalemic metabolic acidosis, nephrocalcinosis, and nephrolithiasis.

Function

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.

See Also

References

  1. ↑ Jarolim P, Palek J, Amato D, Hassan K, Sapak P, Nurse GT, Rubin HL, Zhai S, Sahr KE, Liu SC. Deletion in erythrocyte band 3 gene in malaria-resistant Southeast Asian ovalocytosis. Proc Natl Acad Sci U S A. 1991 Dec 15;88(24):11022-6. PMID:1722314
  2. ↑ Schofield AE, Tanner MJ, Pinder JC, Clough B, Bayley PM, Nash GB, Dluzewski AR, Reardon DM, Cox TM, Wilson RJ, et al.. Basis of unique red cell membrane properties in hereditary ovalocytosis. J Mol Biol. 1992 Feb 20;223(4):949-58. PMID:1538405
  3. ↑ Maillet P, Vallier A, Reinhart WH, Wyss EJ, Ott P, Texier P, Baklouti F, Tanner MJ, Delaunay J, Alloisio N. Band 3 Chur: a variant associated with band 3-deficient hereditary spherocytosis and substitution in a highly conserved position of transmembrane segment 11. Br J Haematol. 1995 Dec;91(4):804-10. PMID:8547122
  4. ↑ Jarolim P, Palek J, Rubin HL, Prchal JT, Korsgren C, Cohen CM. Band 3 Tuscaloosa: Pro327----Arg327 substitution in the cytoplasmic domain of erythrocyte band 3 protein associated with spherocytic hemolytic anemia and partial deficiency of protein 4.2. Blood. 1992 Jul 15;80(2):523-9. PMID:1378323
  5. ↑ Jarolim P, Rubin HL, Brabec V, Chrobak L, Zolotarev AS, Alper SL, Brugnara C, Wichterle H, Palek J. Mutations of conserved arginines in the membrane domain of erythroid band 3 lead to a decrease in membrane-associated band 3 and to the phenotype of hereditary spherocytosis. Blood. 1995 Feb 1;85(3):634-40. PMID:7530501
  6. ↑ Jarolim P, Murray JL, Rubin HL, Taylor WM, Prchal JT, Ballas SK, Snyder LM, Chrobak L, Melrose WD, Brabec V, Palek J. Characterization of 13 novel band 3 gene defects in hereditary spherocytosis with band 3 deficiency. Blood. 1996 Dec 1;88(11):4366-74. PMID:8943874
  7. ↑ 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
  8. ↑ Alloisio N, Texier P, Vallier A, Ribeiro ML, Morle L, Bozon M, Bursaux E, Maillet P, Goncalves P, Tanner MJ, Tamagnini G, Delaunay J. Modulation of clinical expression and band 3 deficiency in hereditary spherocytosis. Blood. 1997 Jul 1;90(1):414-20. PMID:9207478
  9. ↑ Miraglia del Giudice E, Vallier A, Maillet P, Perrotta S, Cutillo S, Iolascon A, Tanner MJ, Delaunay J, Alloisio N. Novel band 3 variants (bands 3 Foggia, Napoli I and Napoli II) associated with hereditary spherocytosis and band 3 deficiency: status of the D38A polymorphism within the EPB3 locus. Br J Haematol. 1997 Jan;96(1):70-6. PMID:9012689
  10. ↑ Dhermy D, Galand C, Bournier O, Boulanger L, Cynober T, Schismanoff PO, Bursaux E, Tchernia G, Boivin P, Garbarz M. Heterogenous band 3 deficiency in hereditary spherocytosis related to different band 3 gene defects. Br J Haematol. 1997 Jul;98(1):32-40. PMID:9233560
  11. ↑ Iwase S, Ideguchi H, Takao M, Horiguchi-Yamada J, Iwasaki M, Takahara S, Sekikawa T, Mochizuki S, Yamada H. Band 3 Tokyo: Thr837-->Ala837 substitution in erythrocyte band 3 protein associated with spherocytic hemolysis. Acta Haematol. 1998;100(4):200-3. PMID:9973643 doi:40904
  12. ↑ Lima PR, Sales TS, Costa FF, Saad ST. Arginine 490 is a hot spot for mutation in the band 3 gene in hereditary spherocytosis. Eur J Haematol. 1999 Nov;63(5):360-1. PMID:10580570
  13. ↑ Ribeiro ML, Alloisio N, Almeida H, Gomes C, Texier P, Lemos C, Mimoso G, Morle L, Bey-Cabet F, Rudigoz RC, Delaunay J, Tamagnini G. Severe hereditary spherocytosis and distal renal tubular acidosis associated with the total absence of band 3. Blood. 2000 Aug 15;96(4):1602-4. PMID:10942416
  14. ↑ Yawata Y, Kanzaki A, Yawata A, Doerfler W, Ozcan R, Eber SW. Characteristic features of the genotype and phenotype of hereditary spherocytosis in the Japanese population. Int J Hematol. 2000 Feb;71(2):118-35. PMID:10745622
  15. ↑ Bracher NA, Lyons CA, Wessels G, Mansvelt E, Coetzer TL. Band 3 Cape Town (E90K) causes severe hereditary spherocytosis in combination with band 3 Prague III. Br J Haematol. 2001 Jun;113(3):689-93. PMID:11380459
  16. ↑ Lima PR, Baratti MO, Chiattone ML, Costa FF, Saad ST. Band 3Tambau: a de novo mutation in the AE1 gene associated with hereditary spherocytosis. Implications for anion exchange and insertion into the red blood cell membrane. Eur J Haematol. 2005 May;74(5):396-401. PMID:15813913 doi:10.1111/j.1600-0609.2004.00405.x
  17. ↑ Bruce LJ, Robinson HC, Guizouarn H, Borgese F, Harrison P, King MJ, Goede JS, Coles SE, Gore DM, Lutz HU, Ficarella R, Layton DM, Iolascon A, Ellory JC, Stewart GW. Monovalent cation leaks in human red cells caused by single amino-acid substitutions in the transport domain of the band 3 chloride-bicarbonate exchanger, AE1. Nat Genet. 2005 Nov;37(11):1258-63. Epub 2005 Oct 9. PMID:16227998 doi:10.1038/ng1656

4ky9, resolution 2.23Å

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