4-41644541-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001330672.2(LIMCH1):​c.2168C>T​(p.Ala723Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000207 in 1,446,422 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

LIMCH1
NM_001330672.2 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.922
Variant links:
Genes affected
LIMCH1 (HGNC:29191): (LIM and calponin homology domains 1) Enables myosin II head/neck binding activity. Involved in several processes, including cytoplasmic actin-based contraction involved in cell motility; positive regulation of stress fiber assembly; and regulation of focal adhesion assembly. Located in stress fiber. Colocalizes with myosin II complex. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.041788697).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LIMCH1NM_001330672.2 linkuse as main transcriptc.2168C>T p.Ala723Val missense_variant 15/32 ENST00000503057.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LIMCH1ENST00000503057.6 linkuse as main transcriptc.2168C>T p.Ala723Val missense_variant 15/321 NM_001330672.2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000207
AC:
3
AN:
1446422
Hom.:
0
Cov.:
30
AF XY:
0.00000418
AC XY:
3
AN XY:
718210
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:
0.00000181
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
Cov.:
33
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 GeneticsJun 29, 2023The c.1013C>T (p.A338V) alteration is located in exon 10 (coding exon 10) of the LIMCH1 gene. This alteration results from a C to T substitution at nucleotide position 1013, causing the alanine (A) at amino acid position 338 to be replaced by a valine (V). 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
0.086
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.00018
.;.;.;T;T;.;T;.;T;T;.;.
Eigen
Benign
-0.14
Eigen_PC
Benign
-0.14
FATHMM_MKL
Benign
0.37
N
LIST_S2
Uncertain
0.86
D;D;D;D;D;T;D;D;D;D;D;D
M_CAP
Benign
0.0058
T
MetaRNN
Benign
0.042
T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.20
.;N;N;N;.;.;.;.;.;.;.;.
MutationTaster
Benign
1.0
N;N;N;N;N;N;N;N;N;N;N;N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.51
N;N;N;N;N;N;N;N;N;N;N;N
REVEL
Benign
0.040
Sift
Uncertain
0.025
D;D;D;D;D;D;D;D;D;D;D;D
Sift4G
Benign
0.37
T;T;T;T;T;T;T;T;T;T;T;T
Polyphen
0.080
B;.;B;B;B;P;D;.;.;B;B;B
Vest4
0.12
MutPred
0.10
.;.;.;.;.;.;Gain of glycosylation at S728 (P = 0.0194);.;.;.;.;.;
MVP
0.17
MPC
0.15
ClinPred
0.21
T
GERP RS
4.2
Varity_R
0.049
gMVP
0.045

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: chr4-41646558; API