2-127569917-A-C

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001393586.1(MYO7B):​c.592+7A>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000491 in 1,610,262 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00051 ( 11 hom. )

Consequence

MYO7B
NM_001393586.1 splice_region, intron

Scores

2
Splicing: ADA: 0.00006331
2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.163
Variant links:
Genes affected
MYO7B (HGNC:7607): (myosin VIIB) The protein encoded by this gene is found in brush border microvilli of epithelial cells in the intestines and kidneys. The encoded protein is involved in linking protocadherins to the actin cytoskeleton and is essential for proper microvilli function. This protein aids in the accumulation of intermicrovillar adhesion components such as harmonin and ANKS4B, and this accumulation is necessary for normal brush border action. [provided by RefSeq, Jan 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 2-127569917-A-C is Benign according to our data. Variant chr2-127569917-A-C is described in ClinVar as [Likely_benign]. Clinvar id is 3041779.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High Homozygotes in GnomAdExome4 at 11 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYO7BNM_001393586.1 linkuse as main transcriptc.592+7A>C splice_region_variant, intron_variant ENST00000409816.8
LOC105373609NR_132317.1 linkuse as main transcriptn.82+964T>G intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYO7BENST00000409816.8 linkuse as main transcriptc.592+7A>C splice_region_variant, intron_variant 1 NM_001393586.1
MYO7BENST00000428314.5 linkuse as main transcriptc.592+7A>C splice_region_variant, intron_variant 5 P1Q6PIF6-1

Frequencies

GnomAD3 genomes
AF:
0.000322
AC:
49
AN:
151984
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00894
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000982
AC:
240
AN:
244382
Hom.:
2
AF XY:
0.00125
AC XY:
166
AN XY:
132534
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000561
Gnomad SAS exome
AF:
0.00778
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000632
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000509
AC:
742
AN:
1458160
Hom.:
11
Cov.:
30
AF XY:
0.000724
AC XY:
525
AN XY:
725050
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000901
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00765
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000387
Gnomad4 OTH exome
AF:
0.000465
GnomAD4 genome
AF:
0.000316
AC:
48
AN:
152102
Hom.:
0
Cov.:
32
AF XY:
0.000444
AC XY:
33
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00874
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000736
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000151
Hom.:
0
Bravo
AF:
0.0000869
Asia WGS
AF:
0.00375
AC:
13
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

MYO7B-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 19, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.63
DANN
Benign
0.47

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000063
dbscSNV1_RF
Benign
0.0
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: rs542130438; hg19: chr2-128327492; API