rs727504436

Variant summary

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

The NM_003476.5(CSRP3):​c.272A>T​(p.Gln91Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000124 in 1,614,102 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

CSRP3
NM_003476.5 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 6.13
Variant links:
Genes affected
CSRP3 (HGNC:2472): (cysteine and glycine rich protein 3) This gene encodes a member of the CSRP family of LIM domain proteins, which may be involved in regulatory processes important for development and cellular differentiation. The LIM/double zinc-finger motif found in this protein is found in a group of proteins with critical functions in gene regulation, cell growth, and somatic differentiation. Mutations in this gene are thought to cause heritable forms of hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy (DCM) in humans. Alternatively spliced transcript variants with different 5' UTR, but encoding the same protein, have been found for this gene. [provided by RefSeq, Jul 2008]

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 (MetaRNN=0.3655073).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CSRP3NM_003476.5 linkuse as main transcriptc.272A>T p.Gln91Leu missense_variant 3/6 ENST00000265968.9 NP_003467.1
CSRP3NM_001369404.1 linkuse as main transcriptc.113-1797A>T intron_variant NP_001356333.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CSRP3ENST00000265968.9 linkuse as main transcriptc.272A>T p.Gln91Leu missense_variant 3/61 NM_003476.5 ENSP00000265968 P1P50461-1

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152222
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00000398
AC:
1
AN:
250986
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135708
show subpopulations
Gnomad AFR exome
AF:
0.0000615
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:
1461880
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.000209
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000723
AC:
11
AN:
152222
Hom.:
0
Cov.:
32
AF XY:
0.0000941
AC XY:
7
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.000241
Gnomad4 AMR
AF:
0.0000654
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
Bravo
AF:
0.0000756
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Dilated cardiomyopathy 1M;C2677491:Hypertrophic cardiomyopathy 12 Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 31, 2018- -
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 20, 2024This sequence change replaces glutamine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 91 of the CSRP3 protein (p.Gln91Leu). This variant is present in population databases (rs727504436, gnomAD 0.02%). This missense change has been observed in individual(s) with autosomal dominant hypertrophic cardiomyopathy (PMID: 16352453). ClinVar contains an entry for this variant (Variation ID: 178014). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineOct 22, 2014The p.Gln91Leu variant in CSRP3 has been reported in 1 individual with HCM (Bos 2006) and was absent from large population studies. Computational prediction too ls and conservation analysis do not provide strong support for or against an imp act to the protein. In summary, the clinical significance of the p.Gln91Leu vari ant is uncertain. -
Cardiovascular phenotype Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 30, 2021The p.Q91L variant (also known as c.272A>T), located in coding exon 2 of the CSRP3 gene, results from an A to T substitution at nucleotide position 272. The glutamine at codon 91 is replaced by leucine, an amino acid with dissimilar properties. This variant was reported in one hypertrophic cardiomyopathy (HCM) case with no known family history of HCM (Bos JM et al. Mol. Genet. Metab., 2006 May;88:78-85;Theis JL et al. Biochem. Biophys. Res. Commun., 2006 Dec;351:896-902). This amino acid position is not well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Hypertrophic cardiomyopathy 1 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingMolecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart InstituteAug 27, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Uncertain
0.031
T
BayesDel_noAF
Uncertain
-0.010
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.38
T;.;T;T
Eigen
Benign
0.051
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.60
.;T;.;T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.37
T;T;T;T
MetaSVM
Benign
-0.86
T
MutationAssessor
Benign
1.3
L;.;L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.5
N;.;.;N
REVEL
Uncertain
0.35
Sift
Uncertain
0.025
D;.;.;D
Sift4G
Benign
0.076
T;.;.;T
Polyphen
0.0040
B;.;B;B
Vest4
0.46
MVP
0.82
MPC
0.061
ClinPred
0.55
D
GERP RS
5.6
Varity_R
0.23
gMVP
0.35

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs727504436; hg19: chr11-19209692; API