chr19-40599178-T-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The ENST00000308370.11(LTBP4):​c.147-19T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000971 in 1,596,538 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 0.000079 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000099 ( 0 hom. )

Consequence

LTBP4
ENST00000308370.11 intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.341
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 Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP6
Variant 19-40599178-T-C is Benign according to our data. Variant chr19-40599178-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 1634191.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LTBP4NM_001042544.1 linkuse as main transcriptc.147-19T>C intron_variant NP_001036009.1
LTBP4NM_003573.2 linkuse as main transcriptc.17-19T>C intron_variant NP_003564.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LTBP4ENST00000204005.13 linkuse as main transcriptc.17-19T>C intron_variant 1 ENSP00000204005 A2
LTBP4ENST00000308370.11 linkuse as main transcriptc.147-19T>C intron_variant 1 ENSP00000311905 A2Q8N2S1-1
LTBP4ENST00000594537.2 linkuse as main transcriptc.95-19T>C intron_variant, NMD_transcript_variant 5 ENSP00000480629

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152072
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000634
AC:
14
AN:
220992
Hom.:
0
AF XY:
0.0000835
AC XY:
10
AN XY:
119692
show subpopulations
Gnomad AFR exome
AF:
0.0000780
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:
0.000132
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000990
AC:
143
AN:
1444466
Hom.:
0
Cov.:
32
AF XY:
0.0000948
AC XY:
68
AN XY:
716996
show subpopulations
Gnomad4 AFR exome
AF:
0.0000604
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:
0.000125
Gnomad4 OTH exome
AF:
0.0000502
GnomAD4 genome
AF:
0.0000789
AC:
12
AN:
152072
Hom.:
0
Cov.:
31
AF XY:
0.0000673
AC XY:
5
AN XY:
74274
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000756

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 03, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
16
DANN
Benign
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: rs376617184; hg19: chr19-41105084; API