NM_138694.4(PKHD1):c.10031T>G (p.Leu3344Ter) AND Autosomal recessive polycystic kidney disease

Germline classification:: Pathogenic/Likely pathogenic (4 submissions)
Last evaluated:: Sep 30, 2023
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV000179585.13

Allele description [Variation Report for NM_138694.4(PKHD1):c.10031T>G (p.Leu3344Ter)]

NM_138694.4(PKHD1):c.10031T>G (p.Leu3344Ter)

Gene:

PKHD1:PKHD1 ciliary IPT domain containing fibrocystin/polyductin [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

6p12.3

Genomic location:

Preferred name:

NM_138694.4(PKHD1):c.10031T>G (p.Leu3344Ter)

HGVS:

NC_000006.12:g.51744510A>C
NG_008753.1:g.348116T>G
NM_138694.4:c.10031T>GMANE SELECT
NM_170724.3:c.10031T>G
NP_619639.3:p.Leu3344Ter
NP_733842.2:p.Leu3344Ter
NC_000006.11:g.51609308A>C
NM_138694.3:c.10031T>G
NP_619639.3:p.Leu3344*

Protein change:

L3344*

Links:

dbSNP: rs398124475

NCBI 1000 Genomes Browser:

rs398124475

Molecular consequence:

NM_138694.4:c.10031T>G - nonsense - [Sequence Ontology: SO:0001587]
NM_170724.3:c.10031T>G - nonsense - [Sequence Ontology: SO:0001587]

Condition(s)

Name:: Autosomal recessive polycystic kidney disease (ARPKD)
Synonyms:: POLYCYSTIC KIDNEY AND HEPATIC DISEASE 1; POLYCYSTIC KIDNEY DISEASE, INFANTILE, TYPE I; Polycystic kidney disease, infantile type; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0009889; MeSH: D017044; MedGen: C0085548; Orphanet: 731; Orphanet: 8378

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000486603	Counsyl	criteria provided, single submitter (Counsyl Autosomal and X-linked Recessive Disease Classification criteria (2015))	Likely pathogenic (Jul 6, 2016)	unknown	clinical testing	PubMed (1) [See all records that cite this PMID] mdi-5618_320494_Counsyl Autosomal and X-linked Recessive Disease Classification criteria (2015).pdf, Citation Link,
SCV000894381	Fulgent Genetics, Fulgent Genetics	criteria provided, single submitter (ACMG Guidelines, 2015)	Pathogenic (Oct 31, 2018)	unknown	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV000918011	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	criteria provided, single submitter (LabCorp Variant Classification Summary - May 2015)	Likely pathogenic (Oct 29, 2018)	germline	clinical testing	PubMed (1) [See all records that cite this PMID] Citation Link,
SCV001587251	Invitae	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Pathogenic (Sep 30, 2023)	germline	clinical testing	PubMed (3) [See all records that cite these PMIDs] 19940839, 16133180, 28492532

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	unknown	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Genotype-phenotype correlations in fetuses and neonates with autosomal recessive polycystic kidney disease.

Denamur E, Delezoide AL, Alberti C, Bourillon A, Gubler MC, Bouvier R, Pascaud O, Elion J, Grandchamp B, Michel-Calemard L, Missy P, Zaccaria I, Le Nagard H, Gerard B, Loirat C; Société Française de Foetopathologie., Barbet J, Beaufrère AM, Berchel C, Bessières B, Boudjemaa S, Buenerd A, et al.

Kidney Int. 2010 Feb;77(4):350-8. doi: 10.1038/ki.2009.440. Epub 2009 Nov 25.

PubMed [citation]

PMID:: 19940839

See all PubMed Citations (4)

PMC

Standards and Guidelines for the Interpretation of Sequence Variants: A Joint Consensus Recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL.

Genetics in medicine : official journal of the American College of Medical Genetics. 2015 Mar 5; 17(5): 405-424

PMC [article]

PMCID:: PMC4544753
PMID:: 25741868
DOI:: 10.1038/gim.2015.30

Details of each submission

From Counsyl, SCV000486603.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Fulgent Genetics, Fulgent Genetics, SCV000894381.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Women's Health and Genetics/Laboratory Corporation of America, LabCorp, SCV000918011.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

Variant summary: PKHD1 c.10031T>G (p.Leu3344X) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. Truncations downstream of this position have been classified as pathogenic by our laboratory (eg. p.Leu3485fsX18, p.Val3546fsX22, p.Arg3772X). The variant was absent in 245968 control chromosomes (gnomAD). c.10031T>G has been reported in the literature in an individual affected with Polycystic Kidney and Hepatic Disease (Losekoot_2005). To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. A ClinVar submission from a clinical diagnostic laboratory (evaluation after 2014) cite the variant as pathogenic. Based on the evidence outlined above, the variant was classified as likely pathogenic.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Invitae, SCV001587251.4

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (3)

Description

This sequence change creates a premature translational stop signal (p.Leu3344*) in the PKHD1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in PKHD1 are known to be pathogenic (PMID: 19940839). This variant is not present in population databases (gnomAD no frequency). This premature translational stop signal has been observed in individual(s) with autosomal recessive polycystic kidney disease (PMID: 16133180). ClinVar contains an entry for this variant (Variation ID: 96365). For these reasons, this variant has been classified as Pathogenic.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Feb 20, 2024

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