19-40613167-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001042545.2(LTBP4):​c.2402C>T​(p.Ala801Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000007 in 1,427,596 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

LTBP4
NM_001042545.2 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.590
Variant links:
Genes affected
LTBP4 (HGNC:6717): (latent transforming growth factor beta binding protein 4) The protein encoded by this gene binds transforming growth factor beta (TGFB) as it is secreted and targeted to the extracellular matrix. TGFB is biologically latent after secretion and insertion into the extracellular matrix, and sheds TGFB and other proteins upon activation. Defects in this gene may be a cause of cutis laxa and severe pulmonary, gastrointestinal, and urinary abnormalities. Three transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, May 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.13611382).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LTBP4NM_001042545.2 linkuse as main transcriptc.2402C>T p.Ala801Val missense_variant 16/30 ENST00000396819.8 NP_001036010.1 Q8N2S1-2B3KXY6
LTBP4NM_001042544.1 linkuse as main transcriptc.2603C>T p.Ala868Val missense_variant 19/33 NP_001036009.1 Q8N2S1-1B3KXY6
LTBP4NM_003573.2 linkuse as main transcriptc.2492C>T p.Ala831Val missense_variant 19/33 NP_003564.2 Q8N2S1A0A0C4DH07B3KXY6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LTBP4ENST00000396819.8 linkuse as main transcriptc.2402C>T p.Ala801Val missense_variant 16/301 NM_001042545.2 ENSP00000380031.5 Q8N2S1-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000533
AC:
1
AN:
187562
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
101758
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000126
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.00e-7
AC:
1
AN:
1427596
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
707448
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.13e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCenter for Pediatric Genomic Medicine, Children's Mercy Hospital and ClinicsMar 30, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.092
BayesDel_addAF
Benign
-0.080
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
16
DANN
Uncertain
0.99
DEOGEN2
Benign
0.043
T;T;.
Eigen
Benign
-0.35
Eigen_PC
Benign
-0.35
FATHMM_MKL
Benign
0.042
N
LIST_S2
Benign
0.47
T;T;T
M_CAP
Benign
0.036
D
MetaRNN
Benign
0.14
T;T;T
MetaSVM
Benign
-0.66
T
MutationAssessor
Benign
0.12
.;N;.
PrimateAI
Benign
0.41
T
PROVEAN
Benign
0.23
N;N;N
REVEL
Benign
0.26
Sift
Benign
0.82
T;T;T
Sift4G
Benign
0.89
T;T;T
Polyphen
0.64
.;P;.
Vest4
0.12
MutPred
0.70
.;Loss of catalytic residue at A868 (P = 0.1681);.;
MVP
0.56
MPC
0.34
ClinPred
0.50
T
GERP RS
1.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.086
gMVP
0.78

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs532233295; hg19: chr19-41119073; API