rs149115544

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001130144.3(LTBP3):c.3548-9T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00189 in 1,608,204 control chromosomes in the GnomAD database, including 102 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0026 ( 12 hom., cov: 33)

Exomes 𝑓: 0.0018 ( 90 hom. )

Consequence

LTBP3
NM_001130144.3 intron

Scores

Splicing: ADA: 0.0001095

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.415

Publications

2 publications found

Variant links:

Genes affected

LTBP3 (HGNC:6716): (latent transforming growth factor beta binding protein 3) The protein encoded by this gene forms a complex with transforming growth factor beta (TGF-beta) proteins and may be involved in their subcellular localization. Activation of this complex requires removal of the encoded binding protein. This protein also may play a structural role in the extracellular matrix. Three transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jan 2010]

LTBP3 Gene-Disease associations (from GenCC):

brachyolmia-amelogenesis imperfecta syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
geleophysic dysplasia 3
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
Acromicric dysplasia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
geleophysic dysplasia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

LTBP3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.87).

BP6

Variant 11-65539637-A-G is Benign according to our data. Variant chr11-65539637-A-G is described in ClinVar as Benign. ClinVar VariationId is 532698.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0607 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
LTBP3	NM_001130144.3 link	c.3548-9T>C	intron_variant	Intron 25 of 27	ENST00000301873.11	NP_001123616.1	Q9NS15-1Q8WYU6
LTBP3	NM_021070.4 link	c.3407-9T>C	intron_variant	Intron 24 of 26		NP_066548.2	Q9NS15-2Q8WYU6
LTBP3	NM_001164266.1 link	c.3056-9T>C	intron_variant	Intron 24 of 26		NP_001157738.1	Q9NS15B9EG76Q8WYU6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LTBP3	ENST00000301873.11 link	c.3548-9T>C		intron_variant	Intron 25 of 27	2	NM_001130144.3	ENSP00000301873.5		Q9NS15-1

Frequencies

GnomAD3 genomes

AF:

0.00259

AC:

393

AN:

151992

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000363

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0661

Gnomad SAS

AF:

0.00373

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00383

GnomAD2 exomes

AF:

0.00562

AC:

1335

AN:

237460

AF XY:

0.00530

show subpopulations

Gnomad AFR exome

AF:

0.000335

Gnomad AMR exome

AF:

0.000206

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0712

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000559

Gnomad OTH exome

AF:

0.00341

GnomAD4 exome

AF:

0.00182

AC:

2643

AN:

1456098

Hom.:

Cov.:

AF XY:

0.00178

AC XY:

1292

AN XY:

724166

show subpopulations

African (AFR)

AF:

0.000300

AC:

AN:

33348

American (AMR)

AF:

0.000293

AC:

AN:

44434

Ashkenazi Jewish (ASJ)

AF:

0.0000384

AC:

AN:

26042

East Asian (EAS)

AF:

0.0505

AC:

1995

AN:

39506

South Asian (SAS)

AF:

0.00189

AC:

162

AN:

85566

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50864

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000104

AC:

115

AN:

1110356

Other (OTH)

AF:

0.00575

AC:

346

AN:

60216

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

149

299

448

598

747

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

150

200

250

<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

AF:

0.00259

AC:

394

AN:

152106

Hom.:

Cov.:

AF XY:

0.00308

AC XY:

229

AN XY:

74370

show subpopulations

African (AFR)

AF:

0.000361

AC:

AN:

41498

American (AMR)

AF:

0.000392

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.0665

AC:

343

AN:

5158

South Asian (SAS)

AF:

0.00373

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10578

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

67974

Other (OTH)

AF:

0.00379

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.518

Heterozygous variant carriers

105

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00115

Hom.:

Bravo

AF:

0.00329

Asia WGS

AF:

0.0290

AC:

100

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Brachyolmia-amelogenesis imperfecta syndrome

Benign:1

Feb 01, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Nov 12, 2018

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

LTBP3-related disorder

Benign:1

Aug 29, 2019

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.87

CADD

Benign

5.0

(source)

DANN

Benign

0.63

PhyloP100

-0.41

Mutation Taster

=100/0

polymorphism (auto)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00011

dbscSNV1_RF

Benign

0.040

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over