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GeneBe

2-32947506-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_206943.4(LTBP1):​c.182G>A​(p.Arg61Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000014 in 1,426,368 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 7.8e-7 ( 0 hom. )

Consequence

LTBP1
NM_206943.4 missense

Scores

2
1
16

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.09
Variant links:
Genes affected
LTBP1 (HGNC:6714): (latent transforming growth factor beta binding protein 1) The protein encoded by this gene belongs to the family of latent TGF-beta binding proteins (LTBPs). The secretion and activation of TGF-betas is regulated by their association with latency-associated proteins and with latent TGF-beta binding proteins. The product of this gene targets latent complexes of transforming growth factor beta to the extracellular matrix, where the latent cytokine is subsequently activated by several different mechanisms. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.26842836).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
LTBP1NM_206943.4 linkuse as main transcriptc.182G>A p.Arg61Lys missense_variant 1/34 ENST00000404816.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
LTBP1ENST00000404816.7 linkuse as main transcriptc.182G>A p.Arg61Lys missense_variant 1/345 NM_206943.4 P3Q14766-1

Frequencies

GnomAD3 genomes
AF:
0.00000661
AC:
1
AN:
151386
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000658
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
GnomAD4 exome
AF:
7.84e-7
AC:
1
AN:
1274982
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
627248
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000472
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000661
AC:
1
AN:
151386
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
73936
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000658
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000264

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.016
T
BayesDel_noAF
Benign
-0.26
CADD
Uncertain
23
DANN
Benign
0.88
DEOGEN2
Benign
0.095
T
Eigen
Benign
-0.18
Eigen_PC
Benign
-0.24
FATHMM_MKL
Benign
0.44
N
LIST_S2
Benign
0.44
T
M_CAP
Pathogenic
0.77
D
MetaRNN
Benign
0.27
T
MetaSVM
Benign
-0.67
T
MutationAssessor
Benign
0.90
L
MutationTaster
Benign
0.95
N;N
PrimateAI
Pathogenic
0.94
D
PROVEAN
Benign
0.24
N
REVEL
Uncertain
0.30
Sift
Benign
0.83
T
Sift4G
Benign
0.55
T
Vest4
0.18
MutPred
0.32
Loss of stability (P = 0.0139);
MVP
0.45
MPC
1.8
ClinPred
0.23
T
GERP RS
2.3
Varity_R
0.094
gMVP
0.30

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

LitVar

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

Other links and lift over

dbSNP: rs1676359782; hg19: chr2-33172573; API