Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5
The NM_000617.3(SLC11A2):āc.1197G>Cā(p.Glu399Asp) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000186 in 1,613,564 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E399K) has been classified as Uncertain significance.
SLC11A2 (HGNC:10908): (solute carrier family 11 member 2) This gene encodes a member of the solute carrier family 11 protein family. The product of this gene transports divalent metals and is involved in iron absorption. Mutations in this gene are associated with hypochromic microcytic anemia with iron overload. A related solute carrier family 11 protein gene is located on chromosome 2. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Apr 2010]
SLC11A2 Gene-Disease associations (from GenCC):
microcytic anemia with liver iron overload
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp
Our verdict: Uncertain_significance. The variant received 5 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. Scorers claiming Uncertain: max_spliceai. No scorers claiming Benign.
PP5
Variant 12-50992810-C-G is Pathogenic according to our data. Variant chr12-50992810-C-G is described in ClinVar as [Pathogenic]. Clinvar id is 9074.Status of the report is no_assertion_criteria_provided, 0 stars.
Gain of catalytic residue at Q395 (P = 2e-04);Gain of catalytic residue at Q395 (P = 2e-04);.;Gain of catalytic residue at Q395 (P = 2e-04);Gain of catalytic residue at Q395 (P = 2e-04);Gain of catalytic residue at Q395 (P = 2e-04);.;Gain of catalytic residue at Q395 (P = 2e-04);.;.;.;