Genetic Variant SERPINA9:p.Asn317Ser (chr14-94464807-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_175739.4(SERPINA9):c.950A>G(p.Asn317Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000285 in 1,613,648 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 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

SERPINA9
NM_175739.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.78

Variant links:

Genes affected

SERPINA9 (HGNC:15995): (serpin family A member 9) Enables serine-type endopeptidase inhibitor activity. Predicted to be involved in negative regulation of endopeptidase activity. Predicted to be located in cytoplasm and membrane. Predicted to be active in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

SERPINA9 links:

ENSG00000256357 (HGNC:):

ENSG00000256357 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SERPINA9	NM_175739.4 link	c.950A>G	p.Asn317Ser	missense_variant	Exon 4 of 5	ENST00000674397.2	NP_783866.3	Q86WD7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SERPINA9	ENST00000674397.2 link	c.950A>G	p.Asn317Ser	missense_variant	Exon 4 of 5		NM_175739.4	ENSP00000501517.1		Q86WD7-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152118

Hom.:

Cov.:

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:

0.000386

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000521

AC:

AN:

249436

Hom.:

AF XY:

0.0000739

AC XY:

AN XY:

135326

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000557

Gnomad SAS exome

AF:

0.000360

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000294

AC:

AN:

1461412

Hom.:

Cov.:

AF XY:

0.0000426

AC XY:

AN XY:

727070

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000990

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152236

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74434

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000387

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

ExAC

AF:

0.0000414

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 04, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1004A>G (p.N335S) alteration is located in exon 4 (coding exon 4) of the SERPINA9 gene. This alteration results from a A to G substitution at nucleotide position 1004, causing the asparagine (N) at amino acid position 335 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

0.083

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.47

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.045

.;.;.;.;T;.

Eigen

Benign

-0.30

Eigen_PC

Benign

-0.26

FATHMM_MKL

Benign

0.19

LIST_S2

Benign

0.087

T;T;T;T;T;T

M_CAP

Benign

0.036

MetaRNN

Benign

0.22

T;T;T;T;T;T

MetaSVM

Benign

-0.41

MutationAssessor

Benign

0.93

.;.;.;.;L;.

PrimateAI

Benign

0.24

PROVEAN

Benign

-1.9

N;N;N;N;N;N

REVEL

Benign

0.29

Sift

Benign

0.24

T;T;T;T;T;T

Sift4G

Benign

0.13

T;T;T;T;T;T

Polyphen

0.70

P;P;.;B;B;P

Vest4

0.063

MutPred

0.50

.;.;.;.;Gain of catalytic residue at Y316 (P = 0.0042);.;

MVP

0.77

MPC

0.016

ClinPred

0.079

GERP RS

3.8

Varity_R

0.063

gMVP

0.061

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.36

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.36

Position offset: -1

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