rs1239820996

Positions:

• chr11-77211154-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2 BP4_Moderate BP6_Very_Strong BP7

The NM_000260.4(MYO7A):​c.6054G>A​(p.Glu2018Glu) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000704 in 1,420,028 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000070 (0 hom.)
• Consequence: MYO7A NM_000260.4 splice_region, synonymous
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 2.40

Genes affected

MYO7A (HGNC:7606): (myosin VIIA) This gene is a member of the myosin gene family. Myosins are mechanochemical proteins characterized by the presence of a motor domain, an actin-binding domain, a neck domain that interacts with other proteins, and a tail domain that serves as an anchor. This gene encodes an unconventional myosin with a very short tail. Defects in this gene are associated with the mouse shaker-1 phenotype and the human Usher syndrome 1B which are characterized by deafness, reduced vestibular function, and (in human) retinal degeneration. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]

MYO7A (HGNC:):

ACMG classification

Verdict is Benign. Variant got -9 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.46).
• BP6: Variant 11-77211154-G-A is Benign according to our data. Variant chr11-77211154-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 505383.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=2.4 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYO7A	NM_000260.4	c.6054G>A	p.Glu2018Glu	splice_region_variant, synonymous_variant	45/49	ENST00000409709.9	NP_000251.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MYO7A	ENST00000409709.9	c.6054G>A	p.Glu2018Glu	splice_region_variant, synonymous_variant	45/49	1	NM_000260.4	ENSP00000386331.3
MYO7A	ENST00000458637.6	c.5940G>A	p.Glu1980Glu	splice_region_variant, synonymous_variant	45/49	1		ENSP00000392185.2
MYO7A	ENST00000409619.6	c.5907G>A	p.Glu1969Glu	splice_region_variant, synonymous_variant	46/50	1		ENSP00000386635.2
MYO7A	ENST00000458169.2	c.3480G>A	p.Glu1160Glu	splice_region_variant, synonymous_variant	25/29	1		ENSP00000417017.2
MYO7A	ENST00000670577.1	n.*626G>A		splice_region_variant, non_coding_transcript_exon_variant	28/32			ENSP00000499323.1
MYO7A	ENST00000670577.1	n.*626G>A		3_prime_UTR_variant	28/32			ENSP00000499323.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000704 AC: 10 AN: 1420028 Hom.: 0 Cov.: 31 AF XY: 0.00000712 AC XY: 5 AN XY: 701960

Gnomad4 AFR exome AF: 0.0000307

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000826

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Oct 25, 2016

p.Glu2018Glu in exon 45 of MYO7A: This variant is not expected to have clinical significance because it does not alter an amino acid residue and is not located within the splice consensus sequence. -

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 06, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.46
CADD	Benign	8.5
DANN	Benign	0.80

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

Publications

LitVar

Other links and lift over

dbSNP: rs1239820996; hg19: chr11-76922199;