Evidence Repository - Clinical Genome Resources

The ClinGen Evidence Repository is an FDA-recognized human genetic variant database containing expert-curated assertions regarding variants' pathogenicity and supporting evidence summaries. [Disclaimer]

Variant: NM_000277.1:c.47_48insCT

CA891862634

Gene: PAH (HGNC:5053)

Condition: phenylketonuria (MONDO:0009861)

Inheritance Mode: Autosomal recessive inheritance

UUID: c7b4b798-e2b4-431a-bd0d-2d7c903d2c57

Approved on: 2019-02-26

Published on: 2019-08-16

HGVS expressions

NM_000277.1:c.47_48insCT

NC_000012.12:g.102917083_102917084insAG

CM000674.2:g.102917083_102917084insAG

NC_000012.11:g.103310861_103310862insAG

CM000674.1:g.103310861_103310862insAG

NC_000012.10:g.101834991_101834992insAG

NG_008690.1:g.5519_5520insCT

NG_008690.2:g.46327_46328insCT

NM_000277.2:c.47_48insCT

NM_001354304.1:c.47_48insCT

NM_000277.3:c.47_48insCT

ENST00000307000.7:c.-101_-100insCT

ENST00000546844.1:c.47_48insCT

ENST00000547319.1:n.358_359insCT

ENST00000549111.5:n.143_144insCT

ENST00000550978.6:n.31_32insCT

ENST00000551337.5:c.47_48insCT

ENST00000551988.5:n.136_137insCT

ENST00000553106.5:c.47_48insCT

ENST00000635500.1:n.29-4186_29-4185insCT

Pathogenic

PM2 PP4_Moderate PM3_Strong PVS1

Evidence Links 2

Expert Panel

Phenylketonuria VCEP

Criteria Specification Information

Criteria Specifications for this VCEP

Evidence submitted by expert panel

Phenylketonuria VCEP

The PAH: c.47_48dupCT variant is a frameshift variant occurring in exon 1 of 13 in the canonical transcript of PAH, a gene fulfilling the most recent criteria for LOF being a known disease mechanism (see PMID: 30192042) (PVS1). The variant has been previously reported in trans with the known pathogenic L48S allele in 1 Israeli case with classic PKU (PMID: 18299955; PMID: 18294361) as assessed by plasma Phe levels; BH4 deficiency was excluded. It was also noted in 3 Turkish probands: in two, it was found in trans with the p.R243X allele, and in one, it was found in trans with the p.R261Q allele (PMID: 21147011); all three cases had classic as assessed by plasma Phe levels and BH4 deficiency was excluded by genetic testing. Thus PM3_Strong and PP4_Moderate apply. It is absent from control databases including ethnically matched individuals, including gnomAD/ExAC, 1000 Genomes, and ESP (PM2).

PM2

Variant is absent from control databases including ethnically matched individuals, including gnomAD/ExAC, 1000 Genomes, ESP, and the Greater Middle East Variome (PM2).

PP4_Moderate

The variant has been previously reported in trans with the known pathogenic L48S allele in 1 Israeli case with classic PKU (PMID: 18299955; PMID: 18294361) as assessed by plasma Phe levels; BH4 deficiency was excluded. It was also noted in 3 Turkish probands: in two, it was found in trans with the p.R243X allele, and in one, it was found in trans with the p.R261Q allele (PMID: 21147011); all three cases had classic as assessed by plasma Phe levels and BH4 deficiency was excluded by genetic testing. Thus PM3_Strong and PP4_Moderate apply.

PubMed:21147011

PubMed:18299955

PM3_Strong

It was also noted in 3 Turkish probands: in two, it was found in trans with the p.R243X allele, and in one, it was found in trans with the p.R261Q allele (PMID: 21147011); all three cases had classic as assessed by plasma Phe levels and BH4 deficiency was excluded by genetic testing. PubMed:21147011

PVS1

Curation History

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