rs2678555

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001098668.4(SFTPA2):ā€‹c.26C>Gā€‹(p.Thr9Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000312 in 1,602,498 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T9N) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.000020 ( 0 hom., cov: 27)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

SFTPA2
NM_001098668.4 missense

Scores

17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.14
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 Likely_benign. Variant got -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.041235507).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SFTPA2NM_001098668.4 linkuse as main transcriptc.26C>G p.Thr9Ser missense_variant 3/6 ENST00000372325.7 NP_001092138.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SFTPA2ENST00000372325.7 linkuse as main transcriptc.26C>G p.Thr9Ser missense_variant 3/61 NM_001098668.4 ENSP00000361400 P1

Frequencies

GnomAD3 genomes
AF:
0.0000200
AC:
3
AN:
150306
Hom.:
0
Cov.:
27
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000595
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000215
AC:
4
AN:
185672
Hom.:
0
AF XY:
0.0000202
AC XY:
2
AN XY:
99180
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000267
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:
0.00000138
AC:
2
AN:
1452074
Hom.:
0
Cov.:
79
AF XY:
0.00000138
AC XY:
1
AN XY:
722292
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000199
AC:
3
AN:
150424
Hom.:
0
Cov.:
27
AF XY:
0.0000273
AC XY:
2
AN XY:
73362
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000596
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000413
AC:
5

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Benign
-0.62
T
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.092
DANN
Benign
0.30
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.013
N
LIST_S2
Benign
0.25
.;.;T;T;T
M_CAP
Benign
0.0019
T
MetaRNN
Benign
0.041
T;T;T;T;T
MetaSVM
Benign
-0.96
T
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-0.33
N;N;N;.;.
REVEL
Benign
0.018
Sift
Benign
0.60
T;T;T;.;.
Sift4G
Benign
0.37
T;T;T;.;.
Vest4
0.14
MutPred
0.50
Gain of helix (P = 0.2059);Gain of helix (P = 0.2059);Gain of helix (P = 0.2059);Gain of helix (P = 0.2059);.;
MVP
0.061
MPC
1.1
ClinPred
0.023
T
GERP RS
0.64
gMVP
0.20

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.15
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: rs1059046; hg19: chr10-81319214; API