rs533310258

Positions:

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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A64G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

FHL2
NM_001318895.3 missense

Scores

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]

FHL2 links:

(HGNC:):

links:

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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/exons	MANE	UniProt
FHL2	NM_001318895.3 linkuse as main transcript	c.191C>T	p.Ala64Val	missense_variant	4/7	ENST00000530340.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FHL2	ENST00000530340.6 linkuse as main transcript	c.191C>T	p.Ala64Val	missense_variant	4/7	1	NM_001318895.3	P1	Q14192-1
	ENST00000457290.2 linkuse as main transcript	n.41-2169G>A		intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251394

Hom.:

AF XY:

0.00

AC XY:

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:

AN:

1461844

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

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.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary dilated cardiomyopathy

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 13, 2022

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

BayesDel_noAF

Benign

-0.34

CADD

Benign

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

LIST_S2

Uncertain

0.87

.;.;.;.;.;.;D

M_CAP

Benign

0.069

MetaRNN

Benign

0.35

T;T;T;T;T;T;T

MetaSVM

Uncertain

-0.26

MutationAssessor

Benign

1.8

.;.;L;L;L;L;L

MutationTaster

Benign

1.0

D;N;N;N;N;N;N;N;N

PrimateAI

Benign

0.29

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

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over