10-79557426-A-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM1BP4BS2

The NM_001098668.4(SFTPA2):​c.530T>A​(p.Phe177Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.0000329 in 152,112 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. F177F) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00013 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

SFTPA2
NM_001098668.4 missense

Scores

4
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.62
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 -3 ACMG points.

PM1
In a domain C-type lectin (size 116) in uniprot entity SFPA2_HUMAN there are 18 pathogenic changes around while only 1 benign (95%) in NM_001098668.4
BP4
Computational evidence support a benign effect (MetaRNN=0.27277926).
BS2
High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SFTPA2NM_001098668.4 linkuse as main transcriptc.530T>A p.Phe177Tyr missense_variant 6/6 ENST00000372325.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SFTPA2ENST00000372325.7 linkuse as main transcriptc.530T>A p.Phe177Tyr missense_variant 6/61 NM_001098668.4 P1
SFTPA2ENST00000372327.9 linkuse as main transcriptc.530T>A p.Phe177Tyr missense_variant 5/51 P1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152112
Hom.:
0
Cov.:
31
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
250968
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135640
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000441
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.000131
AC:
192
AN:
1461668
Hom.:
0
Cov.:
34
AF XY:
0.000110
AC XY:
80
AN XY:
727144
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000170
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152112
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74306
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000130
Hom.:
0
Bravo
AF:
0.0000529
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Interstitial lung disease 2 Uncertain:1
Uncertain significance, criteria provided, single submitterresearchAlder lab, University of PittsburghFeb 01, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
23
DANN
Uncertain
0.99
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.37
FATHMM_MKL
Benign
0.15
N
M_CAP
Benign
0.0087
T
MetaRNN
Benign
0.27
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-1.5
N;N
REVEL
Benign
0.24
Sift
Uncertain
0.0030
D;D
Sift4G
Uncertain
0.010
D;D
Vest4
0.29
MVP
0.46
MPC
1.6
ClinPred
0.29
T
GERP RS
3.0
gMVP
0.47

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

LitVar

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

Other links and lift over

dbSNP: rs762395469; hg19: chr10-81317182; API