rs730880592

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_000256.3(MYBPC3):​c.3491-3C>T variant causes a splice region, splice polypyrimidine tract, intron change. The variant allele was found at a frequency of 0.00000138 in 1,453,398 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MYBPC3
NM_000256.3 splice_region, splice_polypyrimidine_tract, intron

Scores

1
1
Splicing: ADA: 0.4321
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.85
Variant links:
Genes affected
MYBPC3 (HGNC:7551): (myosin binding protein C3) MYBPC3 encodes the cardiac isoform of myosin-binding protein C. Myosin-binding protein C is a myosin-associated protein found in the cross-bridge-bearing zone (C region) of A bands in striated muscle. MYBPC3 is expressed exclusively in heart muscle and is a key regulator of cardiac contraction. Mutations in this gene are a frequent cause of familial hypertrophic cardiomyopathy. [provided by RefSeq, May 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.17).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYBPC3NM_000256.3 linkuse as main transcriptc.3491-3C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000545968.6 NP_000247.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYBPC3ENST00000545968.6 linkuse as main transcriptc.3491-3C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 5 NM_000256.3 ENSP00000442795 P4Q14896-1
MYBPC3ENST00000399249.6 linkuse as main transcriptc.3491-3C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 5 ENSP00000382193 A2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000434
AC:
1
AN:
230154
Hom.:
0
AF XY:
0.00000800
AC XY:
1
AN XY:
124926
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000310
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:
0.00
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1453398
Hom.:
0
Cov.:
34
AF XY:
0.00000138
AC XY:
1
AN XY:
722146
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000232
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:
0.0000166
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.17
CADD
Benign
17
DANN
Uncertain
0.98

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.43
dbscSNV1_RF
Benign
0.19
SpliceAI score (max)
0.040
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: rs730880592; hg19: chr11-47354256; API