Genetic Variant SERPINA12:p.Glu284Lys (chr14-94496428-C-T) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001382267.1(SERPINA12):c.850G>A(p.Glu284Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000229 in 1,614,056 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

SERPINA12
NM_001382267.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.28

Variant links:

Genes affected

SERPINA12 (HGNC:18359): (serpin family A member 12) Predicted to enable serine-type endopeptidase inhibitor activity. Predicted to be involved in negative regulation of endopeptidase activity. Predicted to act upstream of or within negative regulation of gluconeogenesis; positive regulation of signal transduction; and regulation of lipid metabolic process. Predicted to be located in plasma membrane. Predicted to be active in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

SERPINA12 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.967

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SERPINA12	NM_001382267.1 link	c.850G>A	p.Glu284Lys	missense_variant	Exon 3 of 5	ENST00000677451.1	NP_001369196.1
SERPINA12	NM_001304461.2 link	c.850G>A	p.Glu284Lys	missense_variant	Exon 3 of 5		NP_001291390.1	Q8IW75
SERPINA12	NM_173850.4 link	c.850G>A	p.Glu284Lys	missense_variant	Exon 4 of 6		NP_776249.1	Q8IW75

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SERPINA12	ENST00000677451.1 link	c.850G>A	p.Glu284Lys	missense_variant	Exon 3 of 5		NM_001382267.1	ENSP00000503935.1	Q8IW75
SERPINA12	ENST00000341228.2 link	c.850G>A	p.Glu284Lys	missense_variant	Exon 4 of 6	1		ENSP00000342109.2	Q8IW75
SERPINA12	ENST00000556881.5 link	c.850G>A	p.Glu284Lys	missense_variant	Exon 3 of 5	1		ENSP00000451738.1	Q8IW75

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251484

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135914

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:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000219

AC:

AN:

1461894

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

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:

0.0000243

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152162

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74332

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000262

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

Bravo

AF:

0.0000491

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 07, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.850G>A (p.E284K) alteration is located in exon 4 (coding exon 2) of the SERPINA12 gene. This alteration results from a G to A substitution at nucleotide position 850, causing the glutamic acid (E) at amino acid position 284 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

Benign

0.33

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Pathogenic

0.14

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.36

T;T

Eigen

Uncertain

0.61

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.64

.;T

M_CAP

Benign

0.027

MetaRNN

Pathogenic

0.97

D;D

MetaSVM

Pathogenic

1.0

MutationAssessor

Pathogenic

4.2

H;H

PrimateAI

Benign

0.37

PROVEAN

Uncertain

-3.8

D;D

REVEL

Pathogenic

0.74

Sift

Uncertain

0.0040

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;D

Vest4

0.65

MutPred

0.77

Gain of catalytic residue at Q288 (P = 0.0025);Gain of catalytic residue at Q288 (P = 0.0025);

MVP

0.71

MPC

0.17

ClinPred

0.96

GERP RS

4.5

Varity_R

0.94

gMVP

0.93

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