rs533310258

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4BS2

The NM_001318895.3(FHL2):​c.191C>T​(p.Ala64Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,844 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 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. A64A) has been classified as Benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

FHL2
NM_001318895.3 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.92
Variant links:
Genes affected
FHL2 (HGNC:3703): (four and a half LIM domains 2) This gene encodes a member of the four-and-a-half-LIM-only protein family. Family members contain two highly conserved, tandemly arranged, zinc finger domains with four highly conserved cysteines binding a zinc atom in each zinc finger. This protein is thought to have a role in the assembly of extracellular membranes. Also, this gene is down-regulated during transformation of normal myoblasts to rhabdomyosarcoma cells and the encoded protein may function as a link between presenilin-2 and an intracellular signaling pathway. Multiple alternatively spliced variants encoding different isoforms have been identified. [provided by RefSeq, Jan 2016]
C2orf49 (HGNC:28772): (chromosome 2 open reading frame 49) Predicted to be involved in embryonic morphogenesis. Located in nucleus. Part of tRNA-splicing ligase complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.34847242).
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FHL2NM_001318895.3 linkc.191C>T p.Ala64Val missense_variant Exon 4 of 7 ENST00000530340.6 NP_001305824.1 Q14192-1Q6I9R8Q2XQU9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FHL2ENST00000530340.6 linkc.191C>T p.Ala64Val missense_variant Exon 4 of 7 1 NM_001318895.3 ENSP00000433567.2 Q14192-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251394
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135874
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461844
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727216
show subpopulations
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:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Primary dilated cardiomyopathy Uncertain:1
Oct 13, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with FHL2-related conditions. This variant is present in population databases (rs533310258, gnomAD 0.0009%). This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 64 of the FHL2 protein (p.Ala64Val). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.087
BayesDel_addAF
Benign
-0.074
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.66
.;.;D;D;D;D;D
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.22
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Uncertain
0.87
.;.;.;.;.;.;D
M_CAP
Benign
0.069
D
MetaRNN
Benign
0.35
T;T;T;T;T;T;T
MetaSVM
Uncertain
-0.26
T
MutationAssessor
Benign
1.8
.;.;L;L;L;L;L
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-2.1
.;N;N;N;N;N;N
REVEL
Benign
0.27
Sift
Benign
0.16
.;T;T;T;T;T;T
Sift4G
Benign
0.18
T;T;T;T;T;T;T
Polyphen
0.0050
.;.;B;B;B;B;B
Vest4
0.31
MutPred
0.52
.;.;Loss of catalytic residue at A64 (P = 0.0295);Loss of catalytic residue at A64 (P = 0.0295);Loss of catalytic residue at A64 (P = 0.0295);Loss of catalytic residue at A64 (P = 0.0295);Loss of catalytic residue at A64 (P = 0.0295);
MVP
0.97
ClinPred
0.20
T
GERP RS
0.28
Varity_R
0.055

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs533310258; hg19: chr2-105990156; API