Genetic Variant SERPINA11:p.Asn418Lys (chr14-94442621-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_001080451.2(SERPINA11):c.1254C>A(p.Asn418Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,609,158 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SERPINA11
NM_001080451.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.35

Variant links:

Genes affected

SERPINA11 (HGNC:19193): (serpin family A member 11) Predicted to enable serine-type endopeptidase inhibitor activity. Predicted to be involved in negative regulation of endopeptidase activity. Predicted to be active in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

SERPINA11 links:

ENSG00000256357 (HGNC:):

ENSG00000256357 links:

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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
SERPINA11	NM_001080451.2 link	c.1254C>A	p.Asn418Lys	missense_variant	Exon 5 of 5	ENST00000334708.4	NP_001073920.1
SERPINA11	NM_001429948.1 link	c.642C>A	p.Asn214Lys	missense_variant	Exon 5 of 5		NP_001416877.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SERPINA11	ENST00000334708.4 link	c.1254C>A	p.Asn418Lys	missense_variant	Exon 5 of 5	1	NM_001080451.2	ENSP00000335024.3		Q86U17
ENSG00000256357	ENST00000536735.1 link	n.171+10880G>T		intron_variant	Intron 2 of 2	4

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000206

AC:

AN:

1457000

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724272

show subpopulations

Gnomad4 AFR exome

AF:

0.0000898

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152158

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74326

show subpopulations

Gnomad4 AFR

AF:

0.0000724

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000264

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 23, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1254C>A (p.N418K) alteration is located in exon 5 (coding exon 4) of the SERPINA11 gene. This alteration results from a C to A substitution at nucleotide position 1254, causing the asparagine (N) at amino acid position 418 to be replaced by a lysine (K). 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

Uncertain

0.40

BayesDel_addAF

Benign

-0.0039

BayesDel_noAF

Benign

-0.24

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.25

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.58

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.69

M_CAP

Benign

0.084

MetaRNN

Uncertain

0.49

MetaSVM

Uncertain

0.66

MutationAssessor

Pathogenic

2.9

PrimateAI

Uncertain

0.63

PROVEAN

Pathogenic

-4.8

REVEL

Uncertain

0.61

Sift

Benign

0.053

Sift4G

Benign

0.062

Polyphen

0.97

Vest4

0.24

MutPred

0.77

Gain of methylation at N418 (P = 0.0014);

MVP

0.65

MPC

0.34

ClinPred

0.99

GERP RS

5.1

Varity_R

0.58

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