10-101030023-C-A

Position:

• chr10-101030023-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001195263.2(PDZD7):​c.197G>T​(p.Arg66Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: PDZD7 NM_001195263.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter P:1 U:1
• Conservation: PhyloP100: 7.29

Genes affected

PDZD7 (HGNC:26257): (PDZ domain containing 7) This gene encodes a ciliary protein homologous to proteins which are mutated in Usher syndrome patients, and mutations and translocations involving this gene have been associated with two types of Usher syndrome. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PDZD7	NM_001195263.2	c.197G>T	p.Arg66Leu	missense_variant	2/17	ENST00000619208.6	NP_001182192.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PDZD7	ENST00000619208.6	c.197G>T	p.Arg66Leu	missense_variant	2/17	5	NM_001195263.2	ENSP00000480489	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 37

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1 Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hearing loss, autosomal recessive 57 Pathogenic:1 Uncertain:1

Uncertain significance, criteria provided, single submitter	curation	SIB Swiss Institute of Bioinformatics	Oct 15, 2018	This variant is interpreted as Uncertain Significance - Insufficient Evidence, for Deafness, autosomal recessive, 57. The following ACMG Tag(s) were applied: PM2 => Absent from controls (or at extremely low frequency if recessive) in Exome Sequencing Project, 1000 Genomes Project, or Exome Aggregation Consortium. PP3 => Multiple lines of computational evidence support a deleterious effect on the gene or gene product. PP1 => Cosegregation with disease in multiple affected family members in a gene definitively known to cause the disease (https://www.ncbi.nlm.nih.gov/pubmed/29048736). -
Pathogenic, no assertion criteria provided	literature only	OMIM	Jun 01, 2018	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.92
BayesDel_addAF	Pathogenic	0.20	D
BayesDel_noAF	Uncertain	0.050
CADD	Pathogenic	32
DANN	Uncertain	1.0
DEOGEN2	Benign	0.32	T;T;.;.;.
Eigen	Uncertain	0.59
Eigen_PC	Uncertain	0.59
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.96	.;D;D;D;D
M_CAP	Uncertain	0.098	D
MetaRNN	Uncertain	0.74	D;D;D;D;D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.0	M;M;.;M;.
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.81	D
PROVEAN	Uncertain	-4.4	.;.;.;D;.
REVEL	Uncertain	0.46
Sift	Uncertain	0.0010	.;.;.;D;.
Sift4G	Pathogenic	0.0	.;D;.;D;.
Polyphen		1.0	D;D;.;.;.
Vest4		0.90, 0.83
MutPred		0.49		Loss of MoRF binding (P = 0.003);Loss of MoRF binding (P = 0.003);Loss of MoRF binding (P = 0.003);Loss of MoRF binding (P = 0.003);Loss of MoRF binding (P = 0.003);
MVP		0.73
MPC		1.0
ClinPred		1.0	D
GERP RS		5.0
Varity_R		0.60
gMVP		0.79

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

LitVar

Other links and lift over

dbSNP: rs1426679303; hg19: chr10-102789780;