rs61731739

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_003240.5(LEFTY2):​c.903G>A​(p.Pro301Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000394 in 1,614,100 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0014 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00029 ( 6 hom. )

Consequence

LEFTY2
NM_003240.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.846

Publications

1 publications found
Variant links:
Genes affected
LEFTY2 (HGNC:3122): (left-right determination factor 2) This gene encodes a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. The encoded preproprotein is proteolytically processed to generate the mature protein, which plays a role in left-right asymmetry determination of organ systems during development. The protein may also play a role in endometrial bleeding. Mutations in this gene have been associated with left-right axis malformations, particularly in the heart and lungs. Some types of infertility have been associated with dysregulated expression of this gene in the endometrium. This gene is closely linked to both a related family member and a related pseudogene. This gene encodes multiple isoforms that may undergo similar proteolytic processing. [provided by RefSeq, Aug 2016]
LEFTY2 Gene-Disease associations (from GenCC):
  • visceral heterotaxy
    Inheritance: AD Classification: LIMITED Submitted by: G2P
  • congenital heart disease
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.66).
BP6
Variant 1-225937639-C-T is Benign according to our data. Variant chr1-225937639-C-T is described in ClinVar as Benign. ClinVar VariationId is 414130.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.846 with no splicing effect.
BS2
High AC in GnomAd4 at 214 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003240.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
LEFTY2
NM_003240.5
MANE Select
c.903G>Ap.Pro301Pro
synonymous
Exon 4 of 4NP_003231.2
LEFTY2
NM_001172425.3
c.801G>Ap.Pro267Pro
synonymous
Exon 5 of 5NP_001165896.1O00292-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
LEFTY2
ENST00000366820.10
TSL:1 MANE Select
c.903G>Ap.Pro301Pro
synonymous
Exon 4 of 4ENSP00000355785.5O00292-1
LEFTY2
ENST00000420304.6
TSL:2
c.801G>Ap.Pro267Pro
synonymous
Exon 5 of 5ENSP00000388009.2O00292-2
ENSG00000248322
ENST00000513672.1
TSL:2
n.-82G>A
upstream_gene
N/A

Frequencies

GnomAD3 genomes
AF:
0.00142
AC:
216
AN:
152214
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00470
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00143
GnomAD2 exomes
AF:
0.000504
AC:
126
AN:
249792
AF XY:
0.000355
show subpopulations
Gnomad AFR exome
AF:
0.00572
Gnomad AMR exome
AF:
0.000319
Gnomad ASJ exome
AF:
0.0000997
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000106
Gnomad OTH exome
AF:
0.000984
GnomAD4 exome
AF:
0.000289
AC:
422
AN:
1461768
Hom.:
6
Cov.:
29
AF XY:
0.000276
AC XY:
201
AN XY:
727196
show subpopulations
African (AFR)
AF:
0.00612
AC:
205
AN:
33474
American (AMR)
AF:
0.000559
AC:
25
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39698
South Asian (SAS)
AF:
0.000174
AC:
15
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53396
Middle Eastern (MID)
AF:
0.00857
AC:
49
AN:
5718
European-Non Finnish (NFE)
AF:
0.0000656
AC:
73
AN:
1111998
Other (OTH)
AF:
0.000894
AC:
54
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
30
60
89
119
149
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:
0.00140
AC:
214
AN:
152332
Hom.:
1
Cov.:
32
AF XY:
0.00130
AC XY:
97
AN XY:
74492
show subpopulations
African (AFR)
AF:
0.00467
AC:
194
AN:
41574
American (AMR)
AF:
0.000457
AC:
7
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.0102
AC:
3
AN:
294
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68030
Other (OTH)
AF:
0.00142
AC:
3
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
12
24
37
49
61
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:
0.000622
Hom.:
0
Bravo
AF:
0.00176
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Left-right axis malformations (1)
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.66
CADD
Benign
1.2
DANN
Benign
0.86
PhyloP100
-0.85
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs61731739; hg19: chr1-226125339; API