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Mendeliome v2.91 SERPINA12 Zornitza Stark Marked gene: SERPINA12 as ready
Mendeliome v2.91 SERPINA12 Zornitza Stark Gene: serpina12 has been classified as Green List (High Evidence).
Mendeliome v2.91 SERPINA12 Zornitza Stark Classified gene: SERPINA12 as Green List (high evidence)
Mendeliome v2.91 SERPINA12 Zornitza Stark Gene: serpina12 has been classified as Green List (High Evidence).
Mendeliome v2.90 SERPINA12 Zornitza Stark gene: SERPINA12 was added
gene: SERPINA12 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SERPINA12 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SERPINA12 were set to 40260945; 40138372; 39663865; 39630431; 39034590; 38529670; 38268400; 37684051; 35199331; 32247861
Phenotypes for gene: SERPINA12 were set to Hereditary palmoplantar keratoderma, Gamborg-Nielsen type, MONDO:0009489
Review for gene: SERPINA12 was set to GREEN
Added comment: PMID 39630431 reports a single adult‑onset heterozygous frameshift SERPINA12 variant causing non‑punctate palmoplantar keratoderma.

Multiple studies (PMID 32247861, PMID 39663865, PMID 35199331, PMID 37684051, PMID 38268400, PMID 38529670, PMID 39034590, PMID 40260945) describe biallelic loss‑of‑function SERPINA12 variants producing hereditary palmoplantar keratoderma, Gamborg‑Nielsen type, with childhood‑onset diffuse hyperkeratosis, hyperhidrosis and related skin features. Functional work includes cell‑line knock‑down, organotypic skin equivalents and minigene splicing assays, but lacks rescue or animal‑model confirmation.
Sources: Literature
Mendeliome v2.0 SERPINA1 Gene migrated from ENSG00000197249 to ENSG00000197249 (gene set migration)
Mendeliome v1.1860 SERPINA11 Ain Roesley Marked gene: SERPINA11 as ready
Mendeliome v1.1860 SERPINA11 Ain Roesley Gene: serpina11 has been classified as Red List (Low Evidence).
Mendeliome v1.1860 SERPINA11 Ain Roesley Phenotypes for gene: SERPINA11 were changed from to pericardial effusion; pleural effusion
Mendeliome v1.1859 SERPINA11 Ain Roesley edited their review of gene: SERPINA11: Changed phenotypes: pericardial effusion, pleural effusion
Mendeliome v1.1859 SERPINA11 Ain Roesley gene: SERPINA11 was added
gene: SERPINA11 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: SERPINA11 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: SERPINA11 were set to 38831697
Review for gene: SERPINA11 was set to RED
gene: SERPINA11 was marked as current diagnostic
Added comment: 1 family with 2 fetuses.

1st fetus presented with isolated pericardial effusion and a TOP was opted.
post mortem:
mild subcutaneous edema with subtle facial dysmorphic features
small gelatinous glistening cyst on the right pericardium. Bilateral pleural effusion and multiple similar cysts were noted on the lung surfaces

2nd fetus also presented with pleural and pericardial effusion and a TOP was opted
post mortem findings were similar to fetus#1

homozygous nonsense variant in SERPINA11 was found p.(Tyr224*)

Immunofluorescence of lung sections from fetus#1 and a gestation-matched fetus as a control demonstrated undetectable levels of SERPINA11 in the bronchiolar epithelium
Sources: Literature
Mendeliome v0.12227 SERPINA1 Zornitza Stark Marked gene: SERPINA1 as ready
Mendeliome v0.12227 SERPINA1 Zornitza Stark Gene: serpina1 has been classified as Green List (High Evidence).
Mendeliome v0.12227 SERPINA1 Zornitza Stark Phenotypes for gene: SERPINA1 were changed from to Emphysema due to AAT deficiency, MIM#613490; Emphysema-cirrhosis, due to AAT deficiency, MIM#613490; Hemorrhagic diathesis due to antithrombin Pittburgh, MIM#613490; alpha 1-antitrypsin deficiency, MONDO#0013282
Mendeliome v0.12226 SERPINA1 Zornitza Stark Publications for gene: SERPINA1 were set to
Mendeliome v0.12225 SERPINA1 Zornitza Stark Mode of inheritance for gene: SERPINA1 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.12224 SERPINA1 Samantha Ayres changed review comment from: Well established gene-disease relationship

Rated as C by babyseq due to low penetrance in childhood. Can cause hepatic dysfunction in infancy. Identification would prevent further investigation and potentially lead to optimising respiratory health due to adult onset respiratory involvement.; to: Well established gene-disease relationship

Rated as C by babyseq due to low penetrance in childhood. Can cause hepatic dysfunction in infancy. Identification would prevent further investigation and potentially lead to optimising respiratory health due to adult onset respiratory involvement.

MUTATIONAL & CLINICAL SPECTRUM
ZZ genotype: 2% have severe, neonatal/early-onset liver disease (potentially fatal/requiring liver transplantation), up to 6% have childhood onset liver disease. Also associated with adult-onset lung disease particularly emphysema (50%+ penetrance) - smoking is an important risk factor (close to 100% penetrance).

TREATMENT
There is no specific treatment for liver disease beyond transplant. There is treatment (AAT augmentation therapy) available to delay progression of lung disease phenotype.
Mendeliome v0.12224 SERPINA1 Samantha Ayres changed review comment from: Well established gene-disease association

Rated as C by babyseq due to low penetrance in childhood. Can cause hepatic dysfunction in infancy. Identification would prevent further investigation and potentially lead to optimising respiratory health due to adult onset respiratory involvement.; to: Well established gene-disease relationship

Rated as C by babyseq due to low penetrance in childhood. Can cause hepatic dysfunction in infancy. Identification would prevent further investigation and potentially lead to optimising respiratory health due to adult onset respiratory involvement.
Mendeliome v0.12224 SERPINA1 Samantha Ayres reviewed gene: SERPINA1: Rating: GREEN; Mode of pathogenicity: None; Publications: 20301692, 9041988, 34408829; Phenotypes: Emphysema due to AAT deficiency, MIM#613490, Emphysema-cirrhosis, due to AAT deficiency, MIM#613490, Hemorrhagic diathesis due to antithrombin Pittburgh, MIM#613490, alpha 1-antitrypsin deficiency, MONDO#0013282; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal
Mendeliome v0.0 SERPINA1 Zornitza Stark gene: SERPINA1 was added
gene: SERPINA1 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: SERPINA1 was set to Unknown