2-32947592-C-T

Variant summary

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

The NM_206943.4(LTBP1):​c.268C>T​(p.Pro90Ser) variant causes a missense 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. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

LTBP1
NM_206943.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.00
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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1367262).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LTBP1NM_206943.4 linkuse as main transcriptc.268C>T p.Pro90Ser missense_variant 1/34 ENST00000404816.7 NP_996826.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LTBP1ENST00000404816.7 linkuse as main transcriptc.268C>T p.Pro90Ser missense_variant 1/345 NM_206943.4 ENSP00000386043 P3Q14766-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1160936
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
564320
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 09, 2023The c.268C>T (p.P90S) alteration is located in exon 1 (coding exon 1) of the LTBP1 gene. This alteration results from a C to T substitution at nucleotide position 268, causing the proline (P) at amino acid position 90 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
16
DANN
Benign
0.95
DEOGEN2
Benign
0.10
T
Eigen
Benign
-0.99
Eigen_PC
Benign
-0.95
FATHMM_MKL
Benign
0.053
N
LIST_S2
Benign
0.55
T
M_CAP
Pathogenic
0.56
D
MetaRNN
Benign
0.14
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
0.55
N
MutationTaster
Benign
1.0
N;N
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-0.31
N
REVEL
Benign
0.079
Sift
Benign
0.36
T
Sift4G
Benign
0.21
T
Vest4
0.26
MutPred
0.29
Gain of phosphorylation at P90 (P = 0.0137);
MVP
0.093
MPC
1.8
ClinPred
0.048
T
GERP RS
2.6
Varity_R
0.042
gMVP
0.32

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-33172659; API