chr1-216072898-T-C

Variant names:

• chr1-216072898-T-C
• rs2102548566
• NM_206933.4:c.5848A>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_206933.4(USH2A):​c.5848A>G​(p.Thr1950Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. T1950T) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: USH2A NM_206933.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0180
• Publications: 0 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-AS2 (HGNC:40605): (USH2A antisense RNA 2)

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.04614654).

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.5848A>G	p.Thr1950Ala	missense	Exon 29 of 72	NP_996816.3	O75445-1
	USH2A-AS2	NR_125992.1		n.136+298T>C		intron	N/A
	USH2A-AS2	NR_125993.1		n.136+298T>C		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	USH2A	ENST00000307340.8	TSL:1 MANE Select	c.5848A>G	p.Thr1950Ala	missense	Exon 29 of 72	ENSP00000305941.3	O75445-1
	USH2A	ENST00000674083.1		c.5848A>G	p.Thr1950Ala	missense	Exon 29 of 73	ENSP00000501296.1	O75445-3
	USH2A-AS2	ENST00000445619.5	TSL:3	n.93T>C		non_coding_transcript_exon	Exon 1 of 2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.064
BayesDel_addAF	Benign	-0.30	T
BayesDel_noAF	Benign	-0.67
CADD	Benign	1.2
DANN	Benign	0.90
DEOGEN2	Benign	0.038	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.22	N
LIST_S2	Benign	0.42	T
M_CAP	Benign	0.020	T
MetaRNN	Benign	0.046	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.2	L
PhyloP100		0.018
PrimateAI	Benign	0.27	T
PROVEAN	Benign	-0.62	N
REVEL	Benign	0.042
Sift	Benign	0.38	T
Sift4G	Benign	0.14	T
Polyphen		0.0	B
Vest4		0.13
MutPred		0.16		Loss of glycosylation at T1950 (P = 0.0222)
MVP		0.71
MPC		0.030
ClinPred		0.026	T
GERP RS		-2.3
Varity_R		0.035
gMVP		0.24
Mutation Taster		=77/23	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: rs2102548566; hg19: chr1-216246240;