Spectrin, alpha 1

Spectrin alpha chain, erythrocyte is a protein that in humans is encoded by the SPTA1 gene.[5]

SPTA1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesSPTA1, EL2, HPP, HS3, SPH3, SPTA, Spectrin, alpha 1, spectrin alpha, erythrocytic 1
External IDsOMIM: 182860 MGI: 98385 HomoloGene: 74460 GeneCards: SPTA1
Orthologs
SpeciesHumanMouse
Entrez

6708

20739

Ensembl

ENSG00000163554

ENSMUSG00000026532

UniProt

P02549

P08032

RefSeq (mRNA)

NM_003126

NM_011465

RefSeq (protein)

NP_003117

NP_035595

Location (UCSC)Chr 1: 158.61 – 158.69 MbChr 1: 174 – 174.08 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Spectrin is an actin crosslinking and molecular scaffold protein that links the plasma membrane to the actin cytoskeleton, and functions in the determination of cell shape, arrangement of transmembrane proteins, and organization of organelles. It is a tetramer made up of alpha-beta dimers linked in a head-to-head arrangement. This gene is one member of a family of alpha-spectrin genes. The encoded protein is primarily composed of 22 spectrin repeats which are involved in dimer formation. It forms weaker tetramer interactions than non-erythrocytic alpha spectrin, which may increase the plasma membrane elasticity and deformability of red blood cells. Mutations in this gene result in a variety of hereditary red blood cell disorders, including elliptocytosis type 2, pyropoikilocytosis, and spherocytic hemolytic anemia.[5]

Interactions

Spectrin, alpha 1 has been shown to interact with Abl gene.[6]

References

  1. GRCh38: Ensembl release 89: ENSG00000163554 - Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000026532 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. "Entrez Gene: SPTA1 spectrin, alpha, erythrocytic 1 (elliptocytosis 2)".
  6. Ziemnicka-Kotula, D; Xu J; Gu H; Potempska A; Kim K S; Jenkins E C; Trenkner E; Kotula L (May 1998). "Identification of a candidate human spectrin Src homology 3 domain-binding protein suggests a general mechanism of association of tyrosine kinases with the spectrin-based membrane skeleton". J. Biol. Chem. UNITED STATES. 273 (22): 13681–92. doi:10.1074/jbc.273.22.13681. ISSN 0021-9258. PMID 9593709.

Further reading


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