Variant 10-79612365-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_005411.5(SFTPA1):c.226C>T(p.Pro76Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,613,702 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

SFTPA1
NM_005411.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.218

Variant links:

Genes affected

SFTPA1 (HGNC:10798): (surfactant protein A1) This gene encodes a lung surfactant protein that is a member of a subfamily of C-type lectins called collectins. The encoded protein binds specific carbohydrate moieties found on lipids and on the surface of microorganisms. This protein plays an essential role in surfactant homeostasis and in the defense against respiratory pathogens. Mutations in this gene are associated with idiopathic pulmonary fibrosis. Alternate splicing results in multiple transcript variants. [provided by RefSeq, May 2010]

SFTPA1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.22585064).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SFTPA1	NM_005411.5 linkuse as main transcript	c.226C>T	p.Pro76Ser	missense_variant	4/6	ENST00000398636.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SFTPA1	ENST00000398636.8 linkuse as main transcript	c.226C>T	p.Pro76Ser	missense_variant	4/6	1	NM_005411.5	P1	Q8IWL2-1
SFTPA1	ENST00000419470.6 linkuse as main transcript	c.271C>T	p.Pro91Ser	missense_variant	4/6	1			Q8IWL2-2
SFTPA1	ENST00000428376.6 linkuse as main transcript	c.226C>T	p.Pro76Ser	missense_variant	3/5	1		P1	Q8IWL2-1
SFTPA1	ENST00000429958.5 linkuse as main transcript	c.226C>T	p.Pro76Ser	missense_variant	3/5	1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.00

GnomAD4 exome

AF:

0.0000144

AC:

AN:

1461654

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727122

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:

0.0000189

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152048

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74262

show subpopulations

Gnomad4 AFR

AF:

0.0000242

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:

0.00

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 submitter

clinical testing

Ambry Genetics

Dec 19, 2022

The c.226C>T (p.P76S) alteration is located in exon 4 (coding exon 2) of the SFTPA1 gene. This alteration results from a C to T substitution at nucleotide position 226, causing the proline (P) at amino acid position 76 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.099

BayesDel_addAF

Uncertain

0.023

BayesDel_noAF

Benign

-0.21

Cadd

Benign

2.2

Dann

Benign

0.38

DEOGEN2

Benign

0.13

T;T;.;.;.

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.014

M_CAP

Benign

0.075

MetaRNN

Benign

0.23

T;T;T;T;T

MetaSVM

Uncertain

-0.19

MutationAssessor

Benign

1.8

L;L;.;.;.

MutationTaster

Benign

1.0

N;N;N;N;N

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-1.7

N;N;N;N;N

REVEL

Uncertain

0.35

Sift

Benign

0.23

T;T;T;T;T

Sift4G

Benign

0.26

T;T;T;T;T

Polyphen

0.0050

B;B;.;.;.

Vest4

0.15

MutPred

0.47

Gain of glycosylation at P76 (P = 0.0157);Gain of glycosylation at P76 (P = 0.0157);.;Gain of glycosylation at P76 (P = 0.0157);Gain of glycosylation at P76 (P = 0.0157);

MVP

0.41

MPC

0.017

ClinPred

0.097

GERP RS

-1.6

Varity_R

0.029

gMVP

0.21

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over