10-101010325-T-A

Variant names:

• chr10-101010325-T-A
• rs807023
• NM_001195263.2:c.2564A>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001195263.2(PDZD7):​c.2564A>T​(p.Asn855Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 152,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/14 in silico tools predict a benign 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. N855T) has been classified as Benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: PDZD7 NM_001195263.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.131
• Publications: 35 publications found

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]

PDZD7 Gene-Disease associations (from GenCC):

• hearing loss, autosomal recessive

  Inheritance: Unknown Classification: DEFINITIVE Submitted by: ClinGen
• hearing loss, autosomal recessive 57

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• Usher syndrome type 2C

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06950003).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001195263.2. 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
	PDZD7	NM_001195263.2	MANE Select	c.2564A>T	p.Asn855Ile	missense	Exon 15 of 17	NP_001182192.1	Q9H5P4-3
	PDZD7	NM_001437429.1		c.2561A>T	p.Asn854Ile	missense	Exon 15 of 17	NP_001424358.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PDZD7	ENST00000619208.6	TSL:5 MANE Select	c.2564A>T	p.Asn855Ile	missense	Exon 15 of 17	ENSP00000480489.1	Q9H5P4-3
	PDZD7	ENST00000912190.1		c.2561A>T	p.Asn854Ile	missense	Exon 15 of 17	ENSP00000582249.1
	PDZD7	ENST00000474125.7	TSL:2	n.*2511A>T		non_coding_transcript_exon	Exon 11 of 13	ENSP00000474447.1	S4R3J9

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152078 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 70

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152078 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74298

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 41388

American (AMR) AF: 0.00 AC: 0 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5178

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10588

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68026

Other (OTH) AF: 0.00 AC: 0 AN: 2090

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.092
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	6.6
DANN	Benign	0.73
Eigen	Benign	-0.80
Eigen_PC	Benign	-0.86
FATHMM_MKL	Benign	0.038	N
LIST_S2	Benign	0.23	T
MetaRNN	Benign	0.070	T
MetaSVM	Benign	-1.0	T
PhyloP100		0.13
PrimateAI	Benign	0.32	T
Sift4G	Benign	0.17	T
Vest4		0.067
MVP		0.043
ClinPred		0.13	T
GERP RS		1.4
Varity_R		0.098
gMVP		0.20

Splicing

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

Other links and lift over

dbSNP: rs807023; hg19: chr10-102770082;