Genetic Variant NPHP3:p.Ala1184Pro (chr3-132684574-C-G) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_153240.5(NPHP3):c.3550G>C(p.Ala1184Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1184T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Consequence

NPHP3
NM_153240.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.14

Publications

0 publications found

Variant links:

Genes affected

NPHP3 (HGNC:7907): (nephrocystin 3) This gene encodes a protein containing a coiled-coil (CC) domain, a tubulin-tyrosine ligase (TTL) domain, and a tetratrico peptide repeat (TPR) domain. The encoded protein interacts with nephrocystin, it is required for normal ciliary development, and it functions in renal tubular development. Mutations in this gene are associated with nephronophthisis type 3, and also with renal-hepatic-pancreatic dysplasia, and Meckel syndrome type 7. Naturally occurring read-through transcripts exist between this gene and the downstream ACAD11 (acyl-CoA dehydrogenase family, member 11) gene. [provided by RefSeq, Feb 2011]

NPHP3 links:

NPHP3-ACAD11 (HGNC:48351): (NPHP3-ACAD11 readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription between the neighboring NPHP3 (nephronophthisis 3, adolescent) and ACAD11 (acyl-CoA dehydrogenase family, member 11) genes on chromosome 3. The read-through transcript is a candidate for nonsense-mediated mRNA decay (NMD), and is thus unlikely to produce a protein product. [provided by RefSeq, Feb 2011]

NPHP3-ACAD11 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.886

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_153240.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NPHP3	NM_153240.5	MANE Select	c.3550G>C	p.Ala1184Pro	missense	Exon 24 of 27	NP_694972.3
	NPHP3-ACAD11	NR_037804.1		n.3556G>C		non_coding_transcript_exon	Exon 23 of 45

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
NPHP3	ENST00000337331.10	TSL:1 MANE Select	c.3550G>C	p.Ala1184Pro	missense	Exon 24 of 27	ENSP00000338766.5
NPHP3-ACAD11	ENST00000632629.1	TSL:2	c.196G>C	p.Ala66Pro	missense	Exon 1 of 5	ENSP00000488520.1
NPHP3	ENST00000512094.5	TSL:5	c.112G>C	p.Ala38Pro	missense	Exon 1 of 3	ENSP00000427666.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.43

BayesDel_noAF

Pathogenic

0.38

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.96

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.55

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.93

M_CAP

Uncertain

0.16

MetaRNN

Pathogenic

0.89

MetaSVM

Pathogenic

0.90

MutationAssessor

Pathogenic

3.5

PhyloP100

6.1

PrimateAI

Uncertain

0.69

PROVEAN

Pathogenic

-4.7

REVEL

Pathogenic

0.88

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.014

Polyphen

1.0

Vest4

0.96

MutPred

0.67

Loss of MoRF binding (P = 0.0577)

MVP

0.96

MPC

0.84

ClinPred

1.0

GERP RS

4.7

PromoterAI

-0.068

Neutral

(source)

Varity_R

0.97

gMVP

0.93

Mutation Taster

=38/62

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over