NM_153240.5(NPHP3):c.169_174dup (p.Pro57_Gly58dup) AND Nephronophthisis

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: May 6, 2024
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

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:: RCV000810341.7

Allele description [Variation Report for NM_153240.5(NPHP3):c.169_174dup (p.Pro57_Gly58dup)]

NM_153240.5(NPHP3):c.169_174dup (p.Pro57_Gly58dup)

Genes:

LOC129937586:ATAC-STARR-seq lymphoblastoid silent region 14743 [Gene]
NPHP3-AS1:NPHP3 antisense RNA 1 [Gene - HGNC]
NPHP3-ACAD11:NPHP3-ACAD11 readthrough (NMD candidate) [Gene - HGNC]
NPHP3:nephrocystin 3 [Gene - OMIM - HGNC]

Variant type:

Duplication

Cytogenetic location:

3q22.1

Genomic location:

Preferred name:

NM_153240.5(NPHP3):c.169_174dup (p.Pro57_Gly58dup)

HGVS:

NC_000003.12:g.132722187_132722192dup
NG_008130.2:g.5246_5251dup
NM_153240.5:c.169_174dupMANE SELECT
NP_694972.3:p.Pro57_Gly58dup
NC_000003.11:g.132441025_132441026insCCCGGG
NC_000003.11:g.132441031_132441036dup
NG_008130.1:g.5246_5251dup
NM_153240.4:c.169_174dupCCCGGG
NR_002811.2:n.438_443dup
NR_037804.1:n.273_278dup
NR_152743.1:n.438_443dup

Links:

dbSNP: rs1553775768

NCBI 1000 Genomes Browser:

rs1553775768

Molecular consequence:

NM_153240.5:c.169_174dup - inframe_insertion - [Sequence Ontology: SO:0001821]
NR_002811.2:n.438_443dup - non-coding transcript variant - [Sequence Ontology: SO:0001619]
NR_037804.1:n.273_278dup - non-coding transcript variant - [Sequence Ontology: SO:0001619]
NR_152743.1:n.438_443dup - non-coding transcript variant - [Sequence Ontology: SO:0001619]

Condition(s)

Name:: Nephronophthisis
Synonyms:: Juvenile Nephronophthisis
Identifiers:: MONDO: MONDO:0019005; MedGen: C0687120; OMIM: PS256100; Human Phenotype Ontology: HP:0000090

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000950537	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (May 6, 2024)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000950537

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(May 6, 2024)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

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

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group, Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9..

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000950537.4

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

Description

This variant, c.169_174dup, results in the insertion of 2 amino acid(s) of the NPHP3 protein (p.Pro57_Gly58dup), but otherwise preserves the integrity of the reading frame. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with NPHP3-related conditions. ClinVar contains an entry for this variant (Variation ID: 432989). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

#	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: May 16, 2025

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