chr17-12763420-C-A

Variant summary

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

The NM_001146312.3(MYOCD):​c.2737C>A​(p.Gln913Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 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. Q913Q) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MYOCD
NM_001146312.3 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.12
Variant links:
Genes affected
MYOCD (HGNC:16067): (myocardin) This gene encodes a nuclear protein, which is expressed in heart, aorta, and in smooth muscle cell-containing tissues. It functions as a transcriptional co-activator of serum response factor (SRF) and modulates expression of cardiac and smooth muscle-specific SRF-target genes, and thus may play a crucial role in cardiogenesis and differentiation of the smooth muscle cell lineage. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Sep 2009]
ARHGAP44-AS1 (HGNC:55326): (ARHGAP44 and MYOCD antisense RNA 1)

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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=0.16463298).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MYOCDNM_001146312.3 linkuse as main transcriptc.2737C>A p.Gln913Lys missense_variant 14/14 ENST00000425538.6
ARHGAP44-AS1NR_104607.1 linkuse as main transcriptn.441G>T non_coding_transcript_exon_variant 2/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MYOCDENST00000425538.6 linkuse as main transcriptc.2737C>A p.Gln913Lys missense_variant 14/141 NM_001146312.3 P2Q8IZQ8-3
MYOCDENST00000343344.8 linkuse as main transcriptc.2593C>A p.Gln865Lys missense_variant 13/131 A2Q8IZQ8-1
MYOCDENST00000443061.1 linkuse as main transcriptc.1723C>A p.Gln575Lys missense_variant 6/61
ARHGAP44-AS1ENST00000584772.1 linkuse as main transcriptn.399G>T non_coding_transcript_exon_variant 2/21

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1459038
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
725484
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsJan 26, 2023The c.2737C>A (p.Q913K) alteration is located in exon 14 (coding exon 14) of the MYOCD gene. This alteration results from a C to A substitution at nucleotide position 2737, causing the glutamine (Q) at amino acid position 913 to be replaced by a lysine (K). 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
Benign
0.088
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Benign
0.34
.;T;T
Eigen
Benign
0.046
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Benign
0.85
T;T;T
M_CAP
Benign
0.0058
T
MetaRNN
Benign
0.16
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
.;L;.
MutationTaster
Benign
0.99
N;N
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.91
N;N;N
REVEL
Benign
0.052
Sift
Uncertain
0.022
D;D;T
Sift4G
Uncertain
0.056
T;T;T
Polyphen
0.21
B;B;.
Vest4
0.16
MutPred
0.20
.;Gain of ubiquitination at Q865 (P = 0.006);.;
MVP
0.28
MPC
0.12
ClinPred
0.43
T
GERP RS
6.1
Varity_R
0.19
gMVP
0.16

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-12666737; API