9-114403248-C-A

Variant names:

• chr9-114403248-C-A
• rs55749855
• NM_015404.4:c.2510G>T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_015404.4(WHRN):​c.2510G>T​(p.Arg837Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,840 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R837H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: WHRN NM_015404.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.29
• Publications: 0 publications found

Genes affected

WHRN (HGNC:16361): (whirlin) This gene is thought to function in the organization and stabilization of sterocilia elongation and actin cystoskeletal assembly, based on studies of the related mouse gene. Mutations in this gene have been associated with autosomal recessive non-syndromic deafness and Usher Syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2016]

WHRN Gene-Disease associations (from GenCC):

• Usher syndrome type 2D

  Inheritance: AR, Unknown Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen, G2P
• autosomal recessive nonsyndromic hearing loss 31

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• nonsyndromic genetic hearing loss

  Inheritance: AR Classification: MODERATE Submitted by: ClinGen
• hearing loss, autosomal recessive

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Usher syndrome type 2

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.79

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015404.4. 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
	WHRN	NM_015404.4	MANE Select	c.2510G>T	p.Arg837Leu	missense	Exon 11 of 12	NP_056219.3	Q9P202-1
	WHRN	NM_001173425.2		c.2507G>T	p.Arg836Leu	missense	Exon 11 of 12	NP_001166896.1
	WHRN	NM_001346890.1		c.1457G>T	p.Arg486Leu	missense	Exon 7 of 8	NP_001333819.1	Q9P202-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	WHRN	ENST00000362057.4	TSL:1 MANE Select	c.2510G>T	p.Arg837Leu	missense	Exon 11 of 12	ENSP00000354623.3	Q9P202-1
	WHRN	ENST00000265134.10	TSL:1	c.1361G>T	p.Arg454Leu	missense	Exon 11 of 12	ENSP00000265134.6	Q9P202-3
	WHRN	ENST00000866780.1		c.2507G>T	p.Arg836Leu	missense	Exon 11 of 12	ENSP00000536839.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461840 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727222

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53372

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1112008

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.89
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Uncertain	-0.050
CADD	Pathogenic	31
DANN	Uncertain	1.0
DEOGEN2	Benign	0.26	T
Eigen	Uncertain	0.65
Eigen_PC	Uncertain	0.64
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.97	D
M_CAP	Benign	0.063	D
MetaRNN	Pathogenic	0.79	D
MetaSVM	Benign	-0.86	T
MutationAssessor	Benign	1.8	L
PhyloP100		7.3
PrimateAI	Uncertain	0.75	T
PROVEAN	Uncertain	-4.1	D
REVEL	Uncertain	0.42
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0040	D
Polyphen		1.0	D
Vest4		0.74
MutPred		0.51		Loss of disorder (P = 0.0645)
MVP		0.60
MPC		0.64
ClinPred		1.0	D
GERP RS		5.0
Varity_R		0.90
gMVP		0.55
Mutation Taster		=42/58	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		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: rs55749855; hg19: chr9-117165528;