rs144520047

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_000428.3(LTBP2):​c.4905G>C​(p.Leu1635Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000225 in 1,612,242 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00012 ( 2 hom. )

Consequence

LTBP2
NM_000428.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.67

Publications

0 publications found
Variant links:
Genes affected
LTBP2 (HGNC:6715): (latent transforming growth factor beta binding protein 2) The protein encoded by this gene belongs to the family of latent transforming growth factor (TGF)-beta binding proteins (LTBP), which are extracellular matrix proteins with multi-domain structure. This protein is the largest member of the LTBP family possessing unique regions and with most similarity to the fibrillins. It has thus been suggested that it may have multiple functions: as a member of the TGF-beta latent complex, as a structural component of microfibrils, and a role in cell adhesion. [provided by RefSeq, Jul 2008]
LTBP2 Gene-Disease associations (from GenCC):
  • glaucoma 3, primary congenital, D
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen
  • microspherophakia and/or megalocornea, with ectopia lentis and with or without secondary glaucoma
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
  • Weill-Marchesani syndrome 3
    Inheritance: AR, Unknown Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • congenital glaucoma
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Weill-Marchesani syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • glaucoma secondary to spherophakia/ectopia lentis and megalocornea
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.4).
BP6
Variant 14-74502918-C-G is Benign according to our data. Variant chr14-74502918-C-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 256100.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.66 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00126 (192/152332) while in subpopulation AFR AF = 0.00445 (185/41572). AF 95% confidence interval is 0.00393. There are 0 homozygotes in GnomAd4. There are 80 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 2 AR,AD,Unknown gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LTBP2NM_000428.3 linkc.4905G>C p.Leu1635Leu synonymous_variant Exon 34 of 36 ENST00000261978.9 NP_000419.1 Q14767

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LTBP2ENST00000261978.9 linkc.4905G>C p.Leu1635Leu synonymous_variant Exon 34 of 36 1 NM_000428.3 ENSP00000261978.4 Q14767
LTBP2ENST00000556690.5 linkc.4773G>C p.Leu1591Leu synonymous_variant Exon 33 of 35 5 ENSP00000451477.1 G3V3X5
LTBP2ENST00000553939.5 linkn.4905G>C non_coding_transcript_exon_variant Exon 34 of 36 5 ENSP00000452110.1 G3V511

Frequencies

GnomAD3 genomes
AF:
0.00127
AC:
194
AN:
152214
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00449
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
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:
0.00144
GnomAD2 exomes
AF:
0.000350
AC:
87
AN:
248220
AF XY:
0.000334
show subpopulations
Gnomad AFR exome
AF:
0.00526
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000116
AC:
170
AN:
1459910
Hom.:
2
Cov.:
32
AF XY:
0.000112
AC XY:
81
AN XY:
726272
show subpopulations
African (AFR)
AF:
0.00437
AC:
146
AN:
33426
American (AMR)
AF:
0.000157
AC:
7
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86180
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52994
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4580
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111938
Other (OTH)
AF:
0.000266
AC:
16
AN:
60244
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
11
22
32
43
54
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00126
AC:
192
AN:
152332
Hom.:
0
Cov.:
33
AF XY:
0.00107
AC XY:
80
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.00445
AC:
185
AN:
41572
American (AMR)
AF:
0.000261
AC:
4
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00142
AC:
3
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
12
24
35
47
59
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000208
Hom.:
0
Bravo
AF:
0.00159

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Jun 04, 2016
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.40
CADD
Benign
8.5
DANN
Benign
0.81
PhyloP100
1.7
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
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

Other links and lift over

dbSNP: rs144520047; hg19: chr14-74969621; API