17-12763127-T-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM1BP4_ModerateBS2

The NM_001146312.3(MYOCD):ā€‹c.2444T>Cā€‹(p.Ile815Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000929 in 1,613,926 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: š‘“ 0.000039 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000062 ( 0 hom. )

Consequence

MYOCD
NM_001146312.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.39
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM1
In a modified_residue Phosphoserine; by MAPK1 and MAPK3 (size 0) in uniprot entity MYCD_HUMAN
BP4
Computational evidence support a benign effect (MetaRNN=0.0772832).
BS2
High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYOCDNM_001146312.3 linkuse as main transcriptc.2444T>C p.Ile815Thr missense_variant 14/14 ENST00000425538.6 NP_001139784.1 Q8IZQ8-3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYOCDENST00000425538.6 linkuse as main transcriptc.2444T>C p.Ile815Thr missense_variant 14/141 NM_001146312.3 ENSP00000401678.1 Q8IZQ8-3
MYOCDENST00000343344.8 linkuse as main transcriptc.2300T>C p.Ile767Thr missense_variant 13/131 ENSP00000341835.4 Q8IZQ8-1
MYOCDENST00000443061.1 linkuse as main transcriptc.1430T>C p.Ile477Thr missense_variant 6/61 ENSP00000400148.2 Q6N065
ARHGAP44-AS1ENST00000584772.1 linkuse as main transcriptn.692A>G non_coding_transcript_exon_variant 2/21

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152122
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251206
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135754
show subpopulations
Gnomad AFR exome
AF:
0.000123
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461804
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
727194
show subpopulations
Gnomad4 AFR exome
AF:
0.000179
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:
0.0000497
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152122
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74298
show subpopulations
Gnomad4 AFR
AF:
0.000145
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000659
Hom.:
0
Bravo
AF:
0.0000416
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000824
AC:
1

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 27, 2024The c.2444T>C (p.I815T) alteration is located in exon 14 (coding exon 14) of the MYOCD gene. This alteration results from a T to C substitution at nucleotide position 2444, causing the isoleucine (I) at amino acid position 815 to be replaced by a threonine (T). 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
0.23
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
18
DANN
Benign
0.95
DEOGEN2
Benign
0.15
.;T;T
Eigen
Benign
-0.33
Eigen_PC
Benign
-0.17
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.71
T;T;T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.077
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.1
.;L;.
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
1.0
N;N;N
REVEL
Benign
0.033
Sift
Benign
0.54
T;T;T
Sift4G
Benign
0.28
T;T;T
Polyphen
0.016
B;B;.
Vest4
0.16
MVP
0.043
MPC
0.097
ClinPred
0.17
T
GERP RS
3.8
Varity_R
0.048
gMVP
0.19

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: rs373318115; hg19: chr17-12666444; API