rs180774455

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS1

The NM_000260.4(MYO7A):​c.2587-14C>T variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000195 in 1,608,276 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0010 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

MYO7A
NM_000260.4 splice_polypyrimidine_tract, intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.09
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 11-77180360-C-T is Benign according to our data. Variant chr11-77180360-C-T is described in ClinVar as [Benign]. Clinvar id is 178482.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-77180360-C-T is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.000109 (159/1455932) while in subpopulation AFR AF= 0.00401 (134/33428). AF 95% confidence interval is 0.00346. There are 0 homozygotes in gnomad4_exome. There are 75 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYO7ANM_000260.4 linkuse as main transcriptc.2587-14C>T splice_polypyrimidine_tract_variant, intron_variant ENST00000409709.9 NP_000251.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYO7AENST00000409709.9 linkuse as main transcriptc.2587-14C>T splice_polypyrimidine_tract_variant, intron_variant 1 NM_000260.4 ENSP00000386331 Q13402-1

Frequencies

GnomAD3 genomes
AF:
0.00102
AC:
156
AN:
152226
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00364
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.000956
GnomAD3 exomes
AF:
0.000285
AC:
69
AN:
242316
Hom.:
0
AF XY:
0.000174
AC XY:
23
AN XY:
131934
show subpopulations
Gnomad AFR exome
AF:
0.00426
Gnomad AMR exome
AF:
0.000147
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000169
GnomAD4 exome
AF:
0.000109
AC:
159
AN:
1455932
Hom.:
0
Cov.:
31
AF XY:
0.000104
AC XY:
75
AN XY:
724040
show subpopulations
Gnomad4 AFR exome
AF:
0.00401
Gnomad4 AMR exome
AF:
0.000135
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:
0.00
Gnomad4 OTH exome
AF:
0.000316
GnomAD4 genome
AF:
0.00102
AC:
155
AN:
152344
Hom.:
0
Cov.:
33
AF XY:
0.000940
AC XY:
70
AN XY:
74498
show subpopulations
Gnomad4 AFR
AF:
0.00361
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.00107
Hom.:
0
Bravo
AF:
0.00138

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineApr 30, 20122587-14C>T in Intron 21 of MYO7A: This variant is not expected to have clinical significance because it has been identified in 0.7% (24/3392) of African America n chromosomes from a broad population by the NHLBI Exome Sequencing Project (htt p://evs.gs.washington.edu/EVS). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 30, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.41
DANN
Benign
0.45

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs180774455; hg19: chr11-76891406; API