The ClinGen Evidence Repository is an FDA-recognized human genetic variant database containing expert-curated assertions regarding variants' pathogenicity and supporting evidence summaries. [Disclaimer]
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Variant: NM_000277.3:c.1154T>C

CA16020951

Gene: PAH
Condition: phenylketonuria
Inheritance Mode: Autosomal recessive inheritance
UUID: 11e1322e-9388-417b-aa8f-2016b206fa5a

HGVS expressions

NM_000277.3:c.1154T>C
NC_000012.12:g.102843691A>G
CM000674.2:g.102843691A>G
NC_000012.11:g.103237469A>G
CM000674.1:g.103237469A>G
NC_000012.10:g.101761599A>G
NG_008690.1:g.78912T>C
NG_008690.2:g.119720T>C
ENST00000553106.6:c.1154T>C
ENST00000307000.7:c.1139T>C
ENST00000549247.6:n.913T>C
ENST00000551114.2:n.816T>C
ENST00000553106.5:c.1154T>C
ENST00000635477.1:c.258T>C
ENST00000635528.1:n.669T>C
NM_000277.1:c.1154T>C
NM_000277.2:c.1154T>C
NM_001354304.1:c.1154T>C
NM_001354304.2:c.1154T>C

Likely Pathogenic

Met criteria codes 4
PM3 PM2 PP3 PP4_Moderate
Not Met criteria codes 2
PS3 PM5

Evidence Links 0

Expert Panel

Criteria Specification Information

Criteria Specifications for this VCEP
Evidence submitted by expert panel
Phenylketonuria VCEP
The c.1154T>C (p.Leu385Pro) variant in PAH has been reported in at least 3 Chinese patients with Phe > 120umol/L (BH4 deficiency excluded) (PP4_Moderate; PMIDs:29499199, 23932990). This variant was detected in the homozygous state in two patients (PM3; PMID:23932990). This variant is absent in population databases (PM2). This variant is predicted deleterious by SIFT, PolyPhen, MutationTaster, and REVEL = 0.817 (PP3). In summary, this variant meets criteria to be classified as likely pathogenic for PAH. PAH-specific ACMG/AMP criteria applied: PM2, PP4_Moderate, PM3, PP3.
Met criteria codes
PM3
PMID: 23932990 2 Patients are reported to be homozygous for Leu385Pro - 1.0 points
PM2
Variant absent from population databases
PP3
Variant predicted deleterious by SIFT, PolyPhen, MutationTaster, and REVEL = 0.817.
PP4_Moderate
At least 2 classic PKU patients are reported in PMID: 23932990 with Phe >1200umol/L and BH4 deficiency ruled out via urinary pterin analysis with HPLC and DHPR activity assay.
Not Met criteria codes
PS3
PMID: 23932990 - predicted null based on identification in patient with classic PKU in homoallelic state
PM5
c.1155G>C (p.L385L) reported in PAH database, but absent in ClinVar and ClinGen Allele Registry, predicted benign by in silico models
Approved on: 2023-10-13
Published on: 2023-10-13
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