chr11-121187894-G-A

Variant names:

• chr11-121187894-G-A
• rs121909062
• NM_005422.4:c.6062G>A

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1 PM5 PP3_Strong PP5

The NM_005422.4(TECTA):​c.6062G>A​(p.Arg2021His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2021C) has been classified as Likely pathogenic.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: TECTA NM_005422.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:3 U:1
• Conservation: PhyloP100: 9.56
• Publications: 11 publications found

Genes affected

TECTA (HGNC:11720): (tectorin alpha) The tectorial membrane is an extracellular matrix of the inner ear that contacts the stereocilia bundles of specialized sensory hair cells. Sound induces movement of these hair cells relative to the tectorial membrane, deflects the stereocilia, and leads to fluctuations in hair-cell membrane potential, transducing sound into electrical signals. Alpha-tectorin is one of the major noncollagenous components of the tectorial membrane. Mutations in the TECTA gene have been shown to be responsible for autosomal dominant nonsyndromic hearing impairment and a recessive form of sensorineural pre-lingual non-syndromic deafness. [provided by RefSeq, Jul 2008]

TBCEL-TECTA (HGNC:54857): (TBCEL-TECTA readthrough) Predicted to enable alpha-tubulin binding activity. Predicted to be involved in microtubule cytoskeleton organization; post-chaperonin tubulin folding pathway; and tubulin complex assembly. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ENSG00000299284 (HGNC:):

ACMG classification

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

• PM1: In a disulfide_bond (size 60) in uniprot entity TECTA_HUMAN there are 8 pathogenic changes around while only 2 benign (80%) in NM_005422.4
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr11-121187893-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 930525.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.965
• PP5: Variant 11-121187894-G-A is Pathogenic according to our data. Variant chr11-121187894-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 7021.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005422.4. 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
	TECTA	NM_005422.4	MANE Select	c.6062G>A	p.Arg2021His	missense	Exon 21 of 24	NP_005413.2	O75443
	TBCEL-TECTA	NM_001378761.1		c.7004G>A	p.Arg2335His	missense	Exon 27 of 30	NP_001365690.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TECTA	ENST00000392793.6	TSL:5 MANE Select	c.6062G>A	p.Arg2021His	missense	Exon 21 of 24	ENSP00000376543.1	O75443
	TECTA	ENST00000264037.2	TSL:1	c.6062G>A	p.Arg2021His	missense	Exon 20 of 23	ENSP00000264037.2	O75443
	TECTA	ENST00000642222.1		c.6047G>A	p.Arg2016His	missense	Exon 21 of 24	ENSP00000493855.1	A0A2R8YDL0

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251478 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461892 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 727246

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

American (AMR) AF: 0.0000224 AC: 1 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: 53420

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

European-Non Finnish (NFE) AF: 0.00000540 AC: 6 AN: 1112010

Other (OTH) AF: 0.0000166 AC: 1 AN: 60396

GnomAD4 genome Cov.: 33

Alfa AF: 0.0000273 Hom.: 0

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
1	1	-	not provided (2)
1	-	-	Autosomal dominant nonsyndromic hearing loss 12 (1)
1	-	-	Nonsyndromic genetic hearing loss (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.33
BayesDel_addAF	Pathogenic	0.41	D
BayesDel_noAF	Pathogenic	0.35
CADD	Pathogenic	34
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.35	T
Eigen	Pathogenic	0.85
Eigen_PC	Pathogenic	0.86
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.95	D
M_CAP	Uncertain	0.27	D
MetaRNN	Pathogenic	0.96	D
MetaSVM	Uncertain	0.51	D
MutationAssessor	Uncertain	2.2	M
PhyloP100		9.6
PrimateAI	Pathogenic	0.91	D
PROVEAN	Benign	-1.3	N
REVEL	Pathogenic	0.82
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.0030	D
Polyphen		1.0	D
Vest4		0.96
MutPred		0.92		Loss of sheet (P = 0.0817)
MVP		0.94
MPC		1.2
ClinPred		0.99	D
GERP RS		5.7
Varity_R		0.45
gMVP		0.83
Mutation Taster		=16/84	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.080		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: rs121909062; hg19: chr11-121058603; COSMIC: COSV50718488;