SPTA1 gene

spectrin alpha, erythrocytic 1

The information on this page was automatically extracted from online scientific databases.

From NCBI Gene:

This gene encodes a member of a family of molecular scaffold proteins that link the plasma membrane to the actin cytoskeleton and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. The encoded protein is primarily composed of 22 spectrin repeats which are involved in dimer formation. It forms a component of the erythrocyte plasma membrane. Mutations in this gene result in a variety of hereditary red blood cell disorders, including elliptocytosis-2, pyropoikilocytosis, and spherocytosis, type 3. [provided by RefSeq, Aug 2017]

From UniProt:

Spectrin is the major constituent of the cytoskeletal network underlying the erythrocyte plasma membrane. It associates with band 4.1 and actin to form the cytoskeletal superstructure of the erythrocyte plasma membrane.

Covered on Genetics Home Reference:

From NCBI Gene:

  • Spherocytosis type 3
  • Hereditary pyropoikilocytosis
  • Elliptocytosis 2

From UniProt:

Spherocytosis 3 (SPH3): Spherocytosis is a hematologic disorder leading to chronic hemolytic anemia and characterized by numerous abnormally shaped erythrocytes which are generally spheroidal. SPH3 is characterized by severe hemolytic anemia. Inheritance is autosomal recessive. [MIM:270970]

Elliptocytosis 2 (EL2): 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. [MIM:130600]

Hereditary pyropoikilocytosis (HPP): Autosomal recessive hematologic disorder characterized by hemolytic anemia, microspherocytosis, poikilocytosis, and an unusual thermal sensitivity of red cells. [MIM:266140]

Cytogenetic Location: 1q23.1, which is the long (q) arm of chromosome 1 at position 23.1

Molecular Location: base pairs 158,610,498 to 158,686,716 on chromosome 1 (Homo sapiens Annotation Release 108, GRCh38.p7) (NCBI)

Cytogenetic Location: 1q23.1, which is the long (q) arm of chromosome 1 at position 23.1
  • EL2
  • HPP
  • HS3
  • SPH3
  • SPTA