chr10-86699302-C-G

Variant names:

• chr10-86699302-C-G
• rs372789789
• NM_001368067.1:c.780C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001368067.1(LDB3):​c.780C>G​(p.Asn260Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,714 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N260T) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: LDB3 NM_001368067.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.50
• Publications: 1 publications found

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 Gene-Disease associations (from GenCC):

• myofibrillar myopathy 4

  Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• familial isolated dilated cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• dilated cardiomyopathy

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• familial dilated cardiomyopathy

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics
• arrhythmogenic right ventricular cardiomyopathy

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ENSG00000289258 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09304914).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LDB3	NM_001368067.1	c.780C>G	p.Asn260Lys	missense_variant	Exon 9 of 9	ENST00000263066.11	NP_001354996.1
LDB3	NM_007078.3	c.896+6731C>G		intron_variant	Intron 7 of 13	ENST00000361373.9	NP_009009.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LDB3	ENST00000263066.11	c.780C>G	p.Asn260Lys	missense_variant	Exon 9 of 9	1	NM_001368067.1	ENSP00000263066.7
ENSG00000289258	ENST00000443292.2	c.2430C>G	p.Asn810Lys	missense_variant	Exon 18 of 18	1		ENSP00000393132.2
LDB3	ENST00000361373.9	c.896+6731C>G		intron_variant	Intron 7 of 13	1	NM_007078.3	ENSP00000355296.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000402 AC: 1 AN: 249002 AF XY: 0.00000740

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000290

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 6.84e-7 AC: 1 AN: 1461714 Hom.: 0 Cov.: 35 AF XY: 0.00000138 AC XY: 1 AN XY: 727138

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53294

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111976

Other (OTH) AF: 0.00 AC: 0 AN: 60386

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000827 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.42
BayesDel_addAF	Benign	-0.29	T
BayesDel_noAF	Benign	-0.56
CADD	Uncertain	24
DANN	Uncertain	0.99
Eigen	Benign	-0.22
Eigen_PC	Benign	0.028
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.86	D;D;D
M_CAP	Benign	0.0068	T
MetaRNN	Benign	0.093	T;T;T
MetaSVM	Benign	-1.0	T
PhyloP100		4.5
PROVEAN	Benign	-0.090	N;.;N
REVEL	Benign	0.082
Sift	Benign	1.0	T;.;T
Sift4G	Benign	0.96	T;T;T
Polyphen		0.0020	B;B;B
Vest4		0.13
MutPred		0.33		.;.;Gain of methylation at N375 (P = 0.0111);
MVP		0.41
ClinPred		0.31	T
GERP RS		5.1
Mutation Taster		=56/44	polymorphism

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

Other links and lift over

dbSNP: rs372789789; hg19: chr10-88459059;