SNOMED CT, US Edition

Last uploaded: March 22, 2026
Id http://purl.bioontology.org/ontology/SNOMEDCT/719816006
http://purl.bioontology.org/ontology/SNOMEDCT/719816006
Preferred Name

X-linked sideroblastic anemia with spinocerebellar ataxia

Definitions
A rare syndromic, inherited form of sideroblastic anemia characterized by mild to moderate anemia (with hypochromia and microcytosis) and early-onset, non- or slowly progressive spinocerebellar ataxia. A rare syndromic inherited form of sideroblastic anaemia characterised by mild to moderate anaemia (with hypochromia and microcytosis) and early-onset, non or slowly progressive spinocerebellar ataxia. Caused by mutations in the ABCB7 gene (Xq13.3), encoding a mitochondrial ATP-binding cassette (ABC) transporter protein, which plays a role in heme production and iron homeostasis. A mutation in this gene alters the availability of reduced iron and therefore disrupts heme biosynthesis. The ABCB7 gene is highly expressed in both the bone marrow and the cerebellum, which may explain ataxia. Inherited in an X-linked recessive manner. A rare syndromic, inherited form of sideroblastic anaemia characterised by mild to moderate anaemia (with hypochromia and microcytosis) and early-onset, non- or slowly progressive spinocerebellar ataxia. A rare syndromic inherited form of sideroblastic anemia characterized by mild to moderate anemia (with hypochromia and microcytosis) and early-onset, non or slowly progressive spinocerebellar ataxia. Caused by mutations in the ABCB7 gene (Xq13.3), encoding a mitochondrial ATP-binding cassette (ABC) transporter protein, which plays a role in heme production and iron homeostasis. A mutation in this gene alters the availability of reduced iron and therefore disrupts heme biosynthesis. The ABCB7 gene is highly expressed in both the bone marrow and the cerebellum, which may explain ataxia. Inherited in an X-linked recessive manner.
Synonyms
X-linked sideroblastic anemia with spinocerebellar ataxia (disorder)
X-linked sideroblastic anaemia with spinocerebellar ataxia
Type http://www.w3.org/2002/07/owl#Class
Delete Subject Author Type Created
No notes to display