Functions both as a transporter that mediates electroneutral anion exchange across the cell membrane and as a structural protein (PubMed:10926824, PubMed:14734552, PubMed:1538405, PubMed:16227998, PubMed:20151848, PubMed:24121512, PubMed:28387307, PubMed:35835865). Component of the ankyrin-1 complex of the erythrocyte membrane; required for normal flexibility and stability of the erythrocyte membrane and for normal erythrocyte shape via the interactions of its cytoplasmic domain with cytoskeletal proteins, glycolytic enzymes, and hemoglobin (PubMed:1538405, PubMed:20151848, PubMed:35835865). Functions as a transporter that mediates the 1:1 exchange of inorganic anions across the erythrocyte membrane. Mediates chloride-bicarbonate exchange in the kidney, and is required for normal acidification of the urine (PubMed:10926824, PubMed:14734552, PubMed:16227998, PubMed:24121512, PubMed:28387307).
(Microbial infection) Acts as a receptor for P.falciparum (isolate 3D7) MSP9 and thus, facilitates merozoite invasion of erythrocytes (PubMed:14630931). Acts as a receptor for P.falciparum (isolate 3D7) MSP1 and thus, facilitates merozoite invasion of erythrocytes (PubMed:12692305).
Ovalocytosis, Southeast Asian
SAO
An autosomal dominant hematologic disorder characterized by ovalocytic erythrocytes that are rigid and exhibit reduced expression of many erythrocyte antigens. Clinical manifestations include mild hemolysis, intermittent jaundice and gallstones. However, the disorder is most often asymptomatic.
None
The disease is caused by variants affecting the gene represented in this entry.
Spherocytosis 4
SPH4
An autosomal dominant form of spherocytosis, a group of hematologic disorders characterized by the presence of numerous abnormally shaped erythrocytes which are generally spheroidal. Affected individuals have anemia, jaundice, and splenomegaly. Clinical severity is variable. Some individuals are asymptomatic, whereas others have severe hemolytic anemia requiring erythrocyte transfusion.
None
The disease is caused by variants affecting the gene represented in this entry.
Renal tubular acidosis, distal, 1
DRTA1
An autosomal dominant disease characterized by reduced ability to acidify urine, variable hyperchloremic hypokalemic metabolic acidosis, nephrocalcinosis, and nephrolithiasis. It is due to functional failure of alpha-intercalated cells of the cortical collecting duct of the distal nephron, where vectorial proton transport is required for urinary acidification.
None
The disease is caused by variants affecting the gene represented in this entry.
Renal tubular acidosis, distal, 4, with hemolytic anemia
DRTA4
An autosomal recessive 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.
None
The disease is caused by variants affecting the gene represented in this entry.
Cryohydrocytosis
CHC
An autosomal dominant disorder of red cell membrane permeability characterized by cold-induced changes in cell volume, resulting in cold-sensitive stomatocytosis, and increased erythrocyte osmotic fragility and autohemolysis at 4 degrees Celsius. Patients present with mild to moderate hemolytic anemia, splenomegaly, fatigue, and pseudohyperkalemia due to a potassium leak from the erythrocytes.
None
The disease is caused by variants affecting distinct genetic loci, including the gene represented in this entry.
Phosphorylated on Tyr-8 and Tyr-21 most likely by SYK. PP1-resistant phosphorylation that precedes Tyr-359 and Tyr-904 phosphorylation.
Phosphorylated on Tyr-359 and Tyr-904 most likely by LYN. PP1-inhibited phosphorylation that follows Tyr-8 and Tyr-21 phosphorylation.
N-glycosylated.
Belongs to the anion exchanger (TC 2.A.31) family.
Detected in erythrocytes (at protein level).
Isoform 2
Expressed in kidney (at protein level).
CD233, AE1, DI, EPB3, SLC4A1, Band 3 anion transport protein, Anion exchange protein 1, Solute carrier family 4 member 1, AE 1, Anion exchanger 1
Proteins
Immunology & Infectious Disease
101792Da
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