3-132704265-T-C

Variant names:

• chr3-132704265-T-C
• rs1553773832
• NM_153240.5:c.1457A>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_153240.5(NPHP3):​c.1457A>G​(p.Asp486Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D486V) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NPHP3 NM_153240.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.71
• Publications: 0 publications found

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-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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NPHP3	NM_153240.5	MANE Select	c.1457A>G	p.Asp486Gly	missense	Exon 9 of 27	NP_694972.3
	NPHP3-ACAD11	NR_037804.1		n.1561A>G		non_coding_transcript_exon	Exon 9 of 45

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NPHP3	ENST00000337331.10	TSL:1 MANE Select	c.1457A>G	p.Asp486Gly	missense	Exon 9 of 27	ENSP00000338766.5	Q7Z494-1
	NPHP3	ENST00000971413.1		c.1457A>G	p.Asp486Gly	missense	Exon 9 of 25	ENSP00000641472.1
	NPHP3	ENST00000971412.1		c.1457A>G	p.Asp486Gly	missense	Exon 9 of 23	ENSP00000641471.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Nephronophthisis (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.21
BayesDel_addAF	Pathogenic	0.40	D
BayesDel_noAF	Pathogenic	0.33
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.28	T
Eigen	Uncertain	0.51
Eigen_PC	Uncertain	0.56
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.95	D
M_CAP	Uncertain	0.10	D
MetaRNN	Uncertain	0.70	D
MetaSVM	Uncertain	0.46	D
MutationAssessor	Uncertain	2.1	M
PhyloP100		5.7
PrimateAI	Uncertain	0.64	T
PROVEAN	Benign	-0.49	N
REVEL	Uncertain	0.59
Sift	Benign	0.36	T
Sift4G	Benign	0.18	T
Polyphen		0.93	P
Vest4		0.65
MutPred		0.37		Loss of disorder (P = 0.1182)
MVP		0.93
MPC		0.25
ClinPred		0.58	D
GERP RS		5.8
Varity_R		0.25
gMVP		0.60
Mutation Taster		=30/70	disease causing

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

Other links and lift over

dbSNP: rs1553773832; hg19: chr3-132423109;