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GeneBe

1-203171428-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004997.3(MYBPH):c.748G>A(p.Val250Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000353 in 1,613,984 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. V250V) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00013 ( 1 hom., cov: 32)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

MYBPH
NM_004997.3 missense

Scores

3
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.374
Variant links:
Genes affected
MYBPH (HGNC:7552): (myosin binding protein H) Predicted to be a structural constituent of muscle. Predicted to be involved in regulation of striated muscle contraction. Predicted to be located in myosin filament. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.12890297).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYBPHNM_004997.3 linkuse as main transcriptc.748G>A p.Val250Met missense_variant 5/11 ENST00000255416.9
MYBPHXM_047421205.1 linkuse as main transcriptc.871G>A p.Val291Met missense_variant 6/12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYBPHENST00000255416.9 linkuse as main transcriptc.748G>A p.Val250Met missense_variant 5/111 NM_004997.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152256
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000265
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000359
AC:
9
AN:
250924
Hom.:
0
AF XY:
0.0000442
AC XY:
6
AN XY:
135672
show subpopulations
Gnomad AFR exome
AF:
0.000370
Gnomad AMR exome
AF:
0.00
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:
0.0000265
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000253
AC:
37
AN:
1461610
Hom.:
0
Cov.:
32
AF XY:
0.0000234
AC XY:
17
AN XY:
727132
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.00
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:
0.0000261
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.000131
AC:
20
AN:
152374
Hom.:
1
Cov.:
32
AF XY:
0.000201
AC XY:
15
AN XY:
74514
show subpopulations
Gnomad4 AFR
AF:
0.000457
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000322
Hom.:
0
Bravo
AF:
0.0000491
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

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 GeneticsAug 17, 2021The c.748G>A (p.V250M) alteration is located in exon 5 (coding exon 5) of the MYBPH gene. This alteration results from a G to A substitution at nucleotide position 748, causing the valine (V) at amino acid position 250 to be replaced by a methionine (M). 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
0.55
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.50
Cadd
Benign
18
Dann
Uncertain
0.99
DEOGEN2
Benign
0.038
T;T
Eigen
Benign
-0.20
Eigen_PC
Benign
-0.33
FATHMM_MKL
Benign
0.27
N
LIST_S2
Benign
0.46
T;T
M_CAP
Benign
0.034
D
MetaRNN
Benign
0.13
T;T
MetaSVM
Benign
-0.89
T
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.38
T
Sift4G
Uncertain
0.015
D;D
Polyphen
0.94
.;P
Vest4
0.13
MVP
0.47
MPC
0.37
ClinPred
0.18
T
GERP RS
2.9
Varity_R
0.13
gMVP
0.36

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs139911521; hg19: chr1-203140556; COSMIC: COSV55142752; COSMIC: COSV55142752; API