10-86668401-T-G

Variant names:

• chr10-86668401-T-G
• rs2803555
• ENST00000443292.2:c.1487-268T>G

Variant summary

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

The NM_001368064.1(LDB3):​c.-23-268T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 34)
• Consequence: LDB3 NM_001368064.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.148
• Publications: 8 publications found

Genes affected

ENSG00000289258 (HGNC:):

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):

• dilated cardiomyopathy

  Inheritance: AD, AR Classification: STRONG, LIMITED Submitted by: ClinGen
• myofibrillar myopathy 4

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

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

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

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

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 (BayesDel_noAF=-0.45).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001368064.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LDB3	NM_001368064.1		c.-23-268T>G		intron	N/A	NP_001354993.1	V5T7C5
	LDB3	NM_001368063.1		c.-23-268T>G		intron	N/A	NP_001354992.1	A0A0S2Z501
	LDB3	NM_001368068.1		c.-23-268T>G		intron	N/A	NP_001354997.1	A0A0S2Z530

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ENSG00000289258	ENST00000443292.2	TSL:1	c.1487-268T>G		intron	N/A	ENSP00000393132.2	C9JWU6
	LDB3	ENST00000871445.1		c.-193T>G		5_prime_UTR	Exon 1 of 13	ENSP00000541504.1
	LDB3	ENST00000871441.1		c.-23-268T>G		intron	N/A	ENSP00000541500.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.45
CADD	Benign	13
DANN	Benign	0.62
PhyloP100		0.15
PromoterAI		-0.46	Neutral

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs2803555; hg19: chr10-88428158;