rs767914340

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_007078.3(LDB3):​c.1313C>A​(p.Thr438Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000107 in 1,405,790 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T438A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 19)
Exomes 𝑓: 0.000011 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

LDB3
NM_007078.3 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 0.454

Publications

1 publications found
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 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.09131655).
BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.0000107 (15/1405790) while in subpopulation MID AF = 0.000499 (2/4012). AF 95% confidence interval is 0.0000876. There are 0 homozygotes in GnomAdExome4. There are 8 alleles in the male GnomAdExome4 subpopulation. Median coverage is 37. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_007078.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
LDB3
NM_007078.3
MANE Select
c.1313C>Ap.Thr438Asn
missense
Exon 10 of 14NP_009009.1
LDB3
NM_001171610.2
c.1328C>Ap.Thr443Asn
missense
Exon 10 of 14NP_001165081.1
LDB3
NM_001368066.1
c.1172C>Ap.Thr391Asn
missense
Exon 11 of 15NP_001354995.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
LDB3
ENST00000361373.9
TSL:1 MANE Select
c.1313C>Ap.Thr438Asn
missense
Exon 10 of 14ENSP00000355296.3
LDB3
ENST00000945680.1
c.1517C>Ap.Thr506Asn
missense
Exon 10 of 14ENSP00000615739.1
LDB3
ENST00000871464.1
c.1454C>Ap.Thr485Asn
missense
Exon 11 of 15ENSP00000541523.1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
133728
Hom.:
0
Cov.:
19
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000111
AC:
2
AN:
180850
AF XY:
0.0000206
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000275
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000107
AC:
15
AN:
1405790
Hom.:
0
Cov.:
37
AF XY:
0.0000115
AC XY:
8
AN XY:
695364
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32596
American (AMR)
AF:
0.00
AC:
0
AN:
38756
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25152
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37900
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81304
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49428
Middle Eastern (MID)
AF:
0.000499
AC:
2
AN:
4012
European-Non Finnish (NFE)
AF:
0.00000742
AC:
8
AN:
1078542
Other (OTH)
AF:
0.0000861
AC:
5
AN:
58100
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.528
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
133728
Hom.:
0
Cov.:
19
AF XY:
0.00
AC XY:
0
AN XY:
64246
African (AFR)
AF:
0.00
AC:
0
AN:
35310
American (AMR)
AF:
0.00
AC:
0
AN:
12930
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3254
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4484
South Asian (SAS)
AF:
0.00
AC:
0
AN:
3838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
8750
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
280
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
62226
Other (OTH)
AF:
0.00
AC:
0
AN:
1798
Alfa
AF:
0.00
Hom.:
0
ExAC
AF:
0.0000172
AC:
2

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
-
Cardiovascular phenotype (1)
-
1
-
Myofibrillar myopathy 4 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
7.8
DANN
Uncertain
0.99
DEOGEN2
Benign
0.40
T
Eigen
Benign
-0.60
Eigen_PC
Benign
-0.60
FATHMM_MKL
Benign
0.56
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.091
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.5
M
PhyloP100
0.45
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.057
Sift
Benign
0.063
T
Sift4G
Benign
0.41
T
Polyphen
0.089
B
Vest4
0.24
MVP
0.63
MPC
0.38
ClinPred
0.051
T
GERP RS
1.2
Varity_R
0.070
gMVP
0.24
Mutation Taster
=80/20
polymorphism

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

Other links and lift over

dbSNP: rs767914340; hg19: chr10-88476165; API