1-215998942-T-C

Variant names:

• chr1-215998942-T-C
• NM_206933.4:c.6602A>G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_206933.4(USH2A):​c.6602A>G​(p.Gln2201Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 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. Q2201L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: USH2A NM_206933.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.540

Genes affected

USH2A (HGNC:12601): (usherin) This gene encodes a protein that contains laminin EGF motifs, a pentaxin domain, and many fibronectin type III motifs. The protein is found in the basement membrane, and may be important in development and homeostasis of the inner ear and retina. Mutations within this gene have been associated with Usher syndrome type IIa and retinitis pigmentosa. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1185278).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
USH2A	NM_206933.4	c.6602A>G	p.Gln2201Arg	missense_variant	Exon 34 of 72	ENST00000307340.8	NP_996816.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
USH2A	ENST00000307340.8	c.6602A>G	p.Gln2201Arg	missense_variant	Exon 34 of 72	1	NM_206933.4	ENSP00000305941.3
USH2A	ENST00000674083.1	c.6602A>G	p.Gln2201Arg	missense_variant	Exon 34 of 73			ENSP00000501296.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461208 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726900

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.073
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.59
CADD	Benign	16
DANN	Benign	0.97
DEOGEN2	Benign	0.066	T
Eigen	Benign	-0.45
Eigen_PC	Benign	-0.31
FATHMM_MKL	Uncertain	0.83	D
LIST_S2	Benign	0.57	T
M_CAP	Benign	0.031	D
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.4	L
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.015
Sift	Benign	0.87	T
Sift4G	Benign	0.49	T
Polyphen		0.0030	B
Vest4		0.13
MutPred		0.45		Gain of catalytic residue at Q2201 (P = 0.0273);
MVP		0.83
MPC		0.032
ClinPred		0.15	T
GERP RS		1.8
Varity_R		0.10
gMVP		0.30

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-216172284;