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Undiagnosed metabolic disorders

Gene: ALAS2

Green List (high evidence)

ALAS2 (5'-aminolevulinate synthase 2)
EnsemblGeneIds (GRCh38): ENSG00000158578
EnsemblGeneIds (GRCh37): ENSG00000158578
OMIM: 301300, Gene2Phenotype
ALAS2 is in 15 panels

1 review

Sarah Leigh (Genomics England Curator)

Green List (high evidence)

Associated with phenotype in OMIM and not in Gen2Phen. At least 18 variants identified in Anemia, sideroblastic, 1 300751 and two variants in Protoporphyria, erythropoietic, X-linked 300752 in six unrelated families, together with functional studies.
Created: 22 Aug 2019, 4:15 p.m. | Last Modified: 22 Aug 2019, 4:15 p.m.
Panel Version: 1.256
Amber review assigned as this gene is Green on the V1 panel(s) named as a phenotype(s)
Created: 6 Jan 2017, 1:55 p.m.

Mode of inheritance
X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)

Phenotypes
Anemia, sideroblastic, 1 300751; Protoporphyria, erythropoietic, X-linked 300752

Publications

Details

Mode of Inheritance
X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Sources
  • Expert Review Green
  • Literature
Phenotypes
  • X-linked dominant protoporphyria (Porphyrias with acute painful photosensitivity)
  • X-linked sideroblastic anaemia (XLSA) (Porphyrias with acute painful photosensitivity)
  • Erythropoietic protoporphyria, mild variant
OMIM
301300
Clinvar variants
Variants in ALAS2
Penetrance
Complete
Publications
Panels with this gene

History Filter Activity

22 Aug 2019, Gel status: 3

Entity classified by Genomics England curator

Sarah Leigh (Genomics England Curator)

Gene: alas2 has been classified as Green List (High Evidence).

27 Feb 2017, Gel status: 2

panel promoted to version 1

Sarah Leigh (Genomics England Curator)

Construction of “Undiagnosed Metabolic Disorders” (UDM) panel • The 614 genes from the neurometabolic gene panel (PMID: 27604308) added • Green genes downloaded from V1 metabolic panels (Cerebral folate deficiency, Congenital disorders of glycosylation, Hyperammonaemia, Ketotic hypoglycaemia, Mitochondrial disorders, Mucopolysaccharideosis, Gaucher, Fabry, Peroxisomal disorders), sources replaced with "Expert review green", then loaded as a review onto UDM panel, resulting in 367 green genes and 333 red (therefore 86 new green genes included from the additional metabolic panels that weren't previously on the UDM panel) • Downloaded green genes from all panels. Removed genes from none V1 panels. Removed genes from the metabolic panels mentioned above. Compared the remaining genes with the red genes from UDM panel. Loaded as an "Expert review Amber" review to the overlapping genes, (the panel name where the genes came from was used as the phenotype) • Used variant information from PMID 27604308 to review the genes on this panel • Reviewed genes on UDM panel with genes from Emory "Inherited Metabolic Disorders: Sequencing Panel" and UKGTN “Inborn Errors of Metabolism 226 panel”, changing status where appropriate, added 14 UKGTN genes that had not be listed before • Review 10 red genes that had not previously been reviewed, 4/10 were reclassified as green • Review the remaining 145 red genes that had not previously been reviewed (shared between reviewers EM, RF, LD, AT, HB, ON & SL), resulting in 60 green, 11 amber, 70 red, 4 I don’t know reviews) • Reviewed genes from PMID: 24816252 as a publication to genes found in the Inborn error or metabolism Genes metabolomics GWAS paper (figure 5). 2 new genes added

6 Jan 2017, Gel status: 2

Set Mode of Inheritance, Added New Source

Sarah Leigh (Genomics England Curator)

ALAS2 was added to Undiagnosed metabolic disorderspanel. Source: Expert Review Amber Model of inheritance for gene ALAS2 was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)

28 Oct 2016, Gel status: 0

Added New Source

Sarah Leigh (Genomics England Curator)

ALAS2 was added to Undiagnosed metabolic disorderspanel. Sources: Literature

28 Oct 2016, Gel status: 0

Created

Sarah Leigh (Genomics England Curator)

ALAS2 was created by sleigh