10-79557598-G-C

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001098668.4(SFTPA2):​c.371-13C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000145 in 1,589,166 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 30)
Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

SFTPA2
NM_001098668.4 intron

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.515
Variant links:
Genes affected
SFTPA2 (HGNC:10799): (surfactant protein A2) This gene is one of several genes encoding pulmonary-surfactant associated proteins (SFTPA) located on chromosome 10. Mutations in this gene and a highly similar gene located nearby, which affect the highly conserved carbohydrate recognition domain, are associated with idiopathic pulmonary fibrosis. The current version of the assembly displays only a single centromeric SFTPA gene pair rather than the two gene pairs shown in the previous assembly which were thought to have resulted from a duplication. [provided by RefSeq, Sep 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.91).
BS2
High AC in GnomAd4 at 18 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SFTPA2NM_001098668.4 linkuse as main transcriptc.371-13C>G intron_variant ENST00000372325.7 NP_001092138.1 Q8IWL1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SFTPA2ENST00000372325.7 linkuse as main transcriptc.371-13C>G intron_variant 1 NM_001098668.4 ENSP00000361400.2 Q8IWL1
SFTPA2ENST00000372327.9 linkuse as main transcriptc.371-13C>G intron_variant 1 ENSP00000361402.5 Q8IWL1
SFTPA2ENST00000417041.1 linkuse as main transcriptc.371-13C>G intron_variant 5 ENSP00000397375.1 X6REF7

Frequencies

GnomAD3 genomes
AF:
0.000119
AC:
18
AN:
151706
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.000413
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:
0.00
Gnomad OTH
AF:
0.000480
GnomAD3 exomes
AF:
0.00000415
AC:
1
AN:
240816
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
129942
show subpopulations
Gnomad AFR exome
AF:
0.0000661
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000348
AC:
5
AN:
1437342
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
714742
show subpopulations
Gnomad4 AFR exome
AF:
0.000155
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
AF:
0.000119
AC:
18
AN:
151824
Hom.:
0
Cov.:
30
AF XY:
0.000108
AC XY:
8
AN XY:
74214
show subpopulations
Gnomad4 AFR
AF:
0.000411
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:
0.00
Gnomad4 OTH
AF:
0.000475
Alfa
AF:
0.0000712
Hom.:
0

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 testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineFeb 15, 2016The c.371-13C>G variant in SFTPA2 has not been previously reported in individual s with pulmonary disease. This variant is present in dbSNP (rs755092596) but fre quency data was not available. Computational prediction tools and conservation a nalysis are limited or unavailable for this variant. This variant is located in the 3' splice region. Computational tools do not suggest an impact to splicing. However, this information is not predictive enough to rule out pathogenicity. In summary, the clinical significance of the c.371-13C>G variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.91
CADD
Benign
1.4
DANN
Benign
0.61

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs755092596; hg19: chr10-81317354; API