NM_206933.4:c.8315C>T

Variant names:

• chr1-215879007-G-A
• rs150807452
• NM_206933.4:c.8315C>T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Strong BP6

The NM_206933.4(USH2A):​c.8315C>T​(p.Thr2772Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000189 in 1,614,034 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.0011 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000090 (0 hom.)
• Consequence: USH2A NM_206933.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:3
• Conservation: PhyloP100: 1.19
• Publications: 3 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 2A

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• Usher syndrome type 2

  Inheritance: Unknown, AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
• 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: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.013141066).
• BP6: Variant 1-215879007-G-A is Benign according to our data. Variant chr1-215879007-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 178650.

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.8315C>T	p.Thr2772Ile	missense	Exon 42 of 72	NP_996816.3	O75445-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	USH2A	ENST00000307340.8	TSL:1 MANE Select	c.8315C>T	p.Thr2772Ile	missense	Exon 42 of 72	ENSP00000305941.3	O75445-1
	USH2A	ENST00000674083.1		c.8315C>T	p.Thr2772Ile	missense	Exon 42 of 73	ENSP00000501296.1	O75445-3

Frequencies

GnomAD3 genomes AF: 0.00112 AC: 171 AN: 152142 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00410

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: 0.00

Gnomad OTH AF: 0.000478

GnomAD2 exomes AF: 0.000312 AC: 78 AN: 249926 AF XY: 0.000207

Gnomad AFR exome AF: 0.00449

Gnomad AMR exome AF: 0.000145

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000903 AC: 132 AN: 1461774 Hom.: 0 Cov.: 32 AF XY: 0.0000715 AC XY: 52 AN XY: 727196

African (AFR) AF: 0.00320 AC: 107 AN: 33480

American (AMR) AF: 0.000157 AC: 7 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111912

Other (OTH) AF: 0.000281 AC: 17 AN: 60394

GnomAD4 genome AF: 0.00114 AC: 173 AN: 152260 Hom.: 0 Cov.: 32 AF XY: 0.00107 AC XY: 80 AN XY: 74438

African (AFR) AF: 0.00414 AC: 172 AN: 41566

American (AMR) AF: 0.00 AC: 0 AN: 15292

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5174

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10604

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68008

Other (OTH) AF: 0.000473 AC: 1 AN: 2114

Alfa AF: 0.000330 Hom.: 1

Bravo AF: 0.00115

ESP6500AA AF: 0.00477 AC: 21

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.000445 AC: 54

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	2	not provided (3)
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.49	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	10
DANN	Uncertain	0.99
DEOGEN2	Benign	0.064	T
Eigen	Benign	-0.28
Eigen_PC	Benign	-0.37
FATHMM_MKL	Benign	0.16	N
LIST_S2	Benign	0.60	T
M_CAP	Uncertain	0.21	D
MetaRNN	Benign	0.013	T
MetaSVM	Benign	-0.88	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		1.2
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.11
Sift	Uncertain	0.0080	D
Sift4G	Uncertain	0.013	D
Polyphen		0.47	P
Vest4		0.14
MVP		0.93
MPC		0.048
ClinPred		0.041	T
GERP RS		3.9
Varity_R		0.15
gMVP		0.32
Mutation Taster		=59/41	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs150807452; hg19: chr1-216052349;