10-86681812-C-T

Variant names:

• chr10-86681812-C-T
• rs727503124
• NM_007078.3:c.689+9C>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BP6_Very_Strong

The NM_007078.3(LDB3):​c.689+9C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000498 in 1,586,812 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.000059 (0 hom., cov: 34)
  • Exomes 𝑓: 0.000049 (0 hom.)
• Consequence: LDB3 NM_007078.3 intron
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: -2.45
• Publications: 0 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: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.73).
• BP6: Variant 10-86681812-C-T is Benign according to our data. Variant chr10-86681812-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 163831.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LDB3	NM_007078.3	c.689+9C>T		intron_variant	Intron 5 of 13	ENST00000361373.9	NP_009009.1
LDB3	NM_001368067.1	c.321+1655C>T		intron_variant	Intron 4 of 8	ENST00000263066.11	NP_001354996.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LDB3	ENST00000361373.9	c.689+9C>T		intron_variant	Intron 5 of 13	1	NM_007078.3	ENSP00000355296.3
LDB3	ENST00000263066.11	c.321+1655C>T		intron_variant	Intron 4 of 8	1	NM_001368067.1	ENSP00000263066.7
ENSG00000289258	ENST00000443292.2	c.2198+9C>T		intron_variant	Intron 15 of 17	1		ENSP00000393132.2

Frequencies

GnomAD3 genomes AF: 0.0000591 AC: 9 AN: 152180 Hom.: 0 Cov.: 34

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000103

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000625 AC: 14 AN: 223954 AF XY: 0.0000579

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000658

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000584

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000106

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000488 AC: 70 AN: 1434632 Hom.: 0 Cov.: 32 AF XY: 0.0000450 AC XY: 32 AN XY: 711216

African (AFR) AF: 0.00 AC: 0 AN: 32498

American (AMR) AF: 0.0000981 AC: 4 AN: 40788

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24372

East Asian (EAS) AF: 0.00 AC: 0 AN: 39462

South Asian (SAS) AF: 0.0000247 AC: 2 AN: 81050

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51520

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5630

European-Non Finnish (NFE) AF: 0.0000564 AC: 62 AN: 1100182

Other (OTH) AF: 0.0000338 AC: 2 AN: 59130

GnomAD4 genome AF: 0.0000591 AC: 9 AN: 152180 Hom.: 0 Cov.: 34 AF XY: 0.0000673 AC XY: 5 AN XY: 74334

African (AFR) AF: 0.00 AC: 0 AN: 41448

American (AMR) AF: 0.0000654 AC: 1 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5178

South Asian (SAS) AF: 0.000207 AC: 1 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10622

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.000103 AC: 7 AN: 68024

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.000109 Hom.: 0

Bravo AF: 0.0000453

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:2

Mar 14, 2014

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

689+9C>T in intron 4 of LDB3: This variant is not expected to have clinical sign ificance because it is not located within the splice consensus sequence. 689+9 C>T in intron 4 of LDB3 (allele frequency = n/a) -

Oct 02, 2017

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: The LDB3 c.689+9C>T variant causes a missense change involving the alteration of a non-conserved intronic nucleotide. One in silico tool predicts a damaging outcome for this variant. 5/5 splice prediction tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant was found in the control population dataset of gnomAD in 0.0000675, which is approximately 3 times the estimated maximal expected allele frequency of a pathogenic LDB3 variant (0.000025), suggesting this variant is likely a benign polymorphism. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as likely benign. The variant of interest has not, to our knowledge, been reported in affected individuals via publications nor evaluated for functional impact by in vivo/vitro studies. Taken together, this variant is classified as benign. -

Myofibrillar myopathy 4 Benign:1

Jan 11, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided Benign:1

Apr 25, 2018

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.73
CADD	Benign	0.39
DANN	Benign	0.79
PhyloP100		-2.4

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

Other links and lift over

dbSNP: rs727503124; hg19: chr10-88441569;