2-127565305-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001393586.1(MYO7B):​c.205G>A​(p.Asp69Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000185 in 1,461,698 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

MYO7B
NM_001393586.1 missense

Scores

9
8
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.83
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 Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.964

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYO7BNM_001393586.1 linkuse as main transcriptc.205G>A p.Asp69Asn missense_variant 4/48 ENST00000409816.8
LOC105373609NR_132317.1 linkuse as main transcriptn.83-518C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYO7BENST00000409816.8 linkuse as main transcriptc.205G>A p.Asp69Asn missense_variant 4/481 NM_001393586.1
MYO7BENST00000428314.5 linkuse as main transcriptc.205G>A p.Asp69Asn missense_variant 4/475 P1Q6PIF6-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000161
AC:
4
AN:
249190
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135186
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
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:
0.0000266
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1461698
Hom.:
0
Cov.:
31
AF XY:
0.0000193
AC XY:
14
AN XY:
727130
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000207
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.0000113
ExAC
AF:
0.00000826
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 07, 2022The c.205G>A (p.D69N) alteration is located in exon 4 (coding exon 3) of the MYO7B gene. This alteration results from a G to A substitution at nucleotide position 205, causing the aspartic acid (D) at amino acid position 69 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.42
BayesDel_addAF
Uncertain
0.050
T
BayesDel_noAF
Uncertain
-0.080
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.48
T;T
Eigen
Pathogenic
0.96
Eigen_PC
Pathogenic
0.89
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
D;.
M_CAP
Benign
0.071
D
MetaRNN
Pathogenic
0.96
D;D
MetaSVM
Uncertain
0.76
D
MutationAssessor
Pathogenic
3.0
M;M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-4.4
D;D
REVEL
Pathogenic
0.82
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.013
D;D
Polyphen
1.0
D;D
Vest4
0.91
MVP
0.89
MPC
0.41
ClinPred
0.99
D
GERP RS
5.2
Varity_R
0.81
gMVP
0.91

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: rs750122876; hg19: chr2-128322880; API