Genetic Variant SCGB3A2:p.Asn25His (chr5-147881463-A-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_054023.5(SCGB3A2):c.73A>C(p.Asn25His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000193 in 1,613,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

SCGB3A2
NM_054023.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0160

Variant links:

Genes affected

SCGB3A2 (HGNC:18391): (secretoglobin family 3A member 2) The protein encoded by this gene is a secreted lung surfactant protein and a downstream target of thyroid transcription factor. A single nucleotide polymorphism in the promoter of this gene results in susceptibility to asthma.[provided by RefSeq, Mar 2010]

SCGB3A2 links:

C5orf46 (HGNC:33768): (chromosome 5 open reading frame 46) Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

C5orf46 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08692405).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCGB3A2	NM_054023.5 link	c.73A>C	p.Asn25His	missense_variant	Exon 2 of 3	ENST00000296694.5	NP_473364.1	Q96PL1Q2L6B3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SCGB3A2	ENST00000296694.5 link	c.73A>C	p.Asn25His	missense_variant	Exon 2 of 3	1	NM_054023.5	ENSP00000296694.4		Q96PL1

Frequencies

GnomAD3 genomes

AF:

0.000138

AC:

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000279

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000112

AC:

AN:

251100

Hom.:

AF XY:

0.000111

AC XY:

AN XY:

135690

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:

0.0000462

Gnomad NFE exome

AF:

0.000238

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000199

AC:

291

AN:

1461706

Hom.:

Cov.:

AF XY:

0.000191

AC XY:

139

AN XY:

727162

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:

0.0000749

Gnomad4 NFE exome

AF:

0.000251

Gnomad4 OTH exome

AF:

0.000132

GnomAD4 genome

AF:

0.000138

AC:

AN:

152156

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74340

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.000279

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000114

Hom.:

Bravo

AF:

0.000117

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000123

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 03, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.73A>C (p.N25H) alteration is located in exon 2 (coding exon 2) of the SCGB3A2 gene. This alteration results from a A to C substitution at nucleotide position 73, causing the asparagine (N) at amino acid position 25 to be replaced by a histidine (H). 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

0.11

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.56

CADD

Benign

DANN

Benign

0.84

DEOGEN2

Benign

0.19

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.59

FATHMM_MKL

Benign

0.075

LIST_S2

Benign

0.43

M_CAP

Benign

0.018

MetaRNN

Benign

0.087

MetaSVM

Benign

-0.88

PrimateAI

Benign

0.36

PROVEAN

Uncertain

-3.0

REVEL

Benign

0.20

Sift

Benign

0.077

Sift4G

Benign

0.12

Polyphen

0.0020

Vest4

0.26

MVP

0.24

MPC

0.015

ClinPred

0.061

GERP RS

5.4

Varity_R

0.15

gMVP

0.39

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