NM_206933.4:c.8937A>G

Variant names:

• chr1-215845942-T-C
• rs139100097
• NM_206933.4:c.8937A>G

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_Strong BP6_Very_Strong BP7 BS2

The NM_206933.4(USH2A):​c.8937A>G​(p.Val2979Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00071 in 1,613,966 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0037 (5 hom., cov: 32)
  • Exomes 𝑓: 0.00039 (8 hom.)
• Consequence: USH2A NM_206933.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:10
• Conservation: PhyloP100: 0.216
• Publications: 2 publications found

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]

USH2A Gene-Disease associations (from GenCC):

• Usher syndrome type 2

  Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
• Usher syndrome type 2A

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
• retinitis pigmentosa 39

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• retinitis pigmentosa

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -17 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BP6: Variant 1-215845942-T-C is Benign according to our data. Variant chr1-215845942-T-C is described in ClinVar as Benign. ClinVar VariationId is 166467.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=0.216 with no splicing effect.
• BS2: High Homozygotes in GnomAd4 at 5 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_206933.4. 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
	USH2A	NM_206933.4	MANE Select	c.8937A>G	p.Val2979Val	synonymous	Exon 45 of 72	NP_996816.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	USH2A	ENST00000307340.8	TSL:1 MANE Select	c.8937A>G	p.Val2979Val	synonymous	Exon 45 of 72	ENSP00000305941.3
	USH2A	ENST00000674083.1		c.8937A>G	p.Val2979Val	synonymous	Exon 45 of 73	ENSP00000501296.1

Frequencies

GnomAD3 genomes AF: 0.00372 AC: 566 AN: 152208 Hom.: 4 Cov.: 32

Gnomad AFR AF: 0.0127

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00164

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: 0.000103

Gnomad OTH AF: 0.00335

GnomAD2 exomes AF: 0.000876 AC: 220 AN: 251174 AF XY: 0.000641

Gnomad AFR exome AF: 0.0116

Gnomad AMR exome AF: 0.000725

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000352

Gnomad OTH exome AF: 0.000326

GnomAD4 exome AF: 0.000395 AC: 577 AN: 1461640 Hom.: 8 Cov.: 32 AF XY: 0.000347 AC XY: 252 AN XY: 727128

African (AFR) AF: 0.0134 AC: 448 AN: 33460

American (AMR) AF: 0.000739 AC: 33 AN: 44630

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.0000812 AC: 7 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53404

Middle Eastern (MID) AF: 0.00173 AC: 10 AN: 5764

European-Non Finnish (NFE) AF: 0.0000144 AC: 16 AN: 1111908

Other (OTH) AF: 0.00104 AC: 63 AN: 60394

GnomAD4 genome AF: 0.00374 AC: 569 AN: 152326 Hom.: 5 Cov.: 32 AF XY: 0.00372 AC XY: 277 AN XY: 74476

African (AFR) AF: 0.0127 AC: 530 AN: 41592

American (AMR) AF: 0.00164 AC: 25 AN: 15290

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5172

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.000103 AC: 7 AN: 68034

Other (OTH) AF: 0.00332 AC: 7 AN: 2110

Alfa AF: 0.00185 Hom.: 1

Bravo AF: 0.00392

Asia WGS AF: 0.00115 AC: 4 AN: 3478

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions as Germline

Significance: Benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	5	not specified (5)
-	-	3	not provided (3)
-	-	1	Retinitis pigmentosa 39 (1)
-	-	1	Usher syndrome type 2A (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	1.3
DANN	Benign	0.46
PhyloP100		0.22
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.10		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: rs139100097; hg19: chr1-216019284;