rs200458194

Positions:

chr10-86687070-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001368067.1(LDB3):c.346G>A(p.Ala116Thr) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000675 in 1,613,760 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

LDB3
NM_001368067.1 missense, splice_region

Scores

Splicing: ADA: 0.03987

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 3.59

Variant links:

Genes affected

LDB3 (HGNC:15710): (LIM domain binding 3) This gene encodes a PDZ domain-containing protein. PDZ motifs are modular protein-protein interaction domains consisting of 80-120 amino acid residues. PDZ domain-containing proteins interact with each other in cytoskeletal assembly or with other proteins involved in targeting and clustering of membrane proteins. The protein encoded by this gene interacts with alpha-actinin-2 through its N-terminal PDZ domain and with protein kinase C via its C-terminal LIM domains. The LIM domain is a cysteine-rich motif defined by 50-60 amino acids containing two zinc-binding modules. This protein also interacts with all three members of the myozenin family. Mutations in this gene have been associated with myofibrillar myopathy and dilated cardiomyopathy. Alternatively spliced transcript variants encoding different isoforms have been identified; all isoforms have N-terminal PDZ domains while only longer isoforms (1, 2 and 5) have C-terminal LIM domains. [provided by RefSeq, Jan 2010]

LDB3 links:

ENSG00000289258 (HGNC:):

ENSG00000289258 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.037340194).

BS2

High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LDB3	NM_001368067.1 linkuse as main transcript	c.346G>A	p.Ala116Thr	missense_variant, splice_region_variant	6/9	ENST00000263066.11	NP_001354996.1
LDB3	NM_007078.3 linkuse as main transcript	c.690-4826G>A		intron_variant		ENST00000361373.9	NP_009009.1	O75112-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
LDB3	ENST00000263066.11 linkuse as main transcript	c.346G>A	p.Ala116Thr	missense_variant, splice_region_variant	6/9	1	NM_001368067.1	ENSP00000263066.7	O75112-6
LDB3	ENST00000361373.9 linkuse as main transcript	c.690-4826G>A		intron_variant		1	NM_007078.3	ENSP00000355296.3	O75112-1
ENSG00000289258	ENST00000443292.2 linkuse as main transcript	c.2199-4826G>A		intron_variant		1		ENSP00000393132.2	C9JWU6

Frequencies

GnomAD3 genomes

AF:

0.0000658

AC:

AN:

152022

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000623

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.0000923

AC:

AN:

249102

Hom.:

AF XY:

0.0000962

AC XY:

AN XY:

135172

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000556

Gnomad SAS exome

AF:

0.000556

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.000331

GnomAD4 exome

AF:

0.0000677

AC:

AN:

1461620

Hom.:

Cov.:

AF XY:

0.0000646

AC XY:

AN XY:

727082

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000336

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000567

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152140

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74374

show subpopulations

Gnomad4 AFR

AF:

0.0000964

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000624

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000909

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Mar 31, 2023	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 14, 2021	- -
Uncertain significance, criteria provided, single submitter	research	Biesecker Lab/Clinical Genomics Section, National Institutes of Health	Jun 24, 2013	- -

Myofibrillar myopathy 4

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Apr 17, 2022

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 116 of the LDB3 protein (p.Ala116Thr). This variant is present in population databases (rs200458194, gnomAD 0.06%), and has an allele count higher than expected for a pathogenic variant. This missense change has been observed in individual(s) with LDB3-related conditions (PMID: 21520333). ClinVar contains an entry for this variant (Variation ID: 191696). 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. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Uncertain

1.0

Eigen

Benign

-0.25

Eigen_PC

Benign

-0.082

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.60

T;.;T;T;T

M_CAP

Benign

0.054

MetaRNN

Benign

0.037

T;T;T;T;T

MetaSVM

Benign

-0.44

PROVEAN

Benign

-0.33

N;.;N;N;N

REVEL

Benign

0.20

Sift

Benign

0.36

T;.;T;T;T

Sift4G

Benign

0.63

T;T;T;T;T

Polyphen

0.014, 0.032, 0.0020

.;.;B;B;B

Vest4

0.25

MutPred

0.22

.;.;Gain of relative solvent accessibility (P = 0.0249);.;Gain of relative solvent accessibility (P = 0.0249);

MVP

0.76

MPC

0.25

ClinPred

0.080

GERP RS

4.1

gMVP

0.28

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.040

dbscSNV1_RF

Benign

0.16

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.

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