Likely inborn error of metabolism - targeted testing not possible
Gene: GALMThe rating of this gene has been updated following NHS Genomic Medicine Service approvalCreated: 3 Mar 2022, 12:59 p.m. | Last Modified: 3 Mar 2022, 12:59 p.m.
Panel Version: 2.223
New gene added by Zornitza Stark (Australian Genomics). This gene is associated with an appropriate phenotype in OMIM but not in Gene2Phenotype. There is enough evidence for this gene to be Green. The gene has been given an Amber rating and will be promoted to Green at the next review.
Review from Zornitza Stark (Australian Genomics) on the Cholestasis panel:
Homozygous and compound heterozygous variants (missense, nonsense and frameshift) found in 8 Japanese patients from unrelated families with unexplained galactosaemia. (No variants in GALT, GALK1, and GALE). In vitro expression analysis and enzyme activity assay of the patients’ peripheral blood mononuclear cells showed total lack of or compromised expression of GALM protein. One homozygote for one of these variants p.(Gly142Arg) in gnomAD (African population). (Wada, Y. et al 2019; PMID: 30451973) Note only two individuals were reported as having transient cholestasis. Sources: Literature
Zornitza Stark (Australian Genomics), 2 May 2020
Sources: Expert Review, LiteratureCreated: 13 Nov 2020, 1:49 p.m.
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Galactosemia IV, 618881
Publications
Tag for-review was removed from gene: GALM.
Source Expert Review Green was added to GALM. Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Phenotypes for gene: GALM were changed from Galactosemia IV, 618881 to Galactosemia IV, OMIM:618881; MONDO:0030105
Gene: galm has been classified as Amber List (Moderate Evidence).
gene: GALM was added gene: GALM was added to Inborn errors of metabolism. Sources: Expert Review,Literature for-review tags were added to gene: GALM. Mode of inheritance for gene: GALM was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: GALM were set to 30451973; 30910422 Phenotypes for gene: GALM were set to Galactosemia IV, 618881 Review for gene: GALM was set to GREEN