Genetic Variant SERPINI2:p.Glu121Lys (chr3-167467172-C-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_006217.6(SERPINI2):c.361G>A(p.Glu121Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000806 in 1,613,288 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

SERPINI2
NM_006217.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.39

Variant links:

Genes affected

SERPINI2 (HGNC:8945): (serpin family I member 2) The gene encodes a member of a family of proteins that acts as inhibitors of serine proteases. These proteins function in the regulation of a variety of physiological processes, including coagulation, fibrinolysis, development, malignancy, and inflammation. Expression of the encoded protein may be downregulated during pancreatic carcinogenesis. Alternative splicing results in multiple transcript variants for this gene. [provided by RefSeq, Jan 2013]

SERPINI2 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
SERPINI2	NM_006217.6 link	c.361G>A	p.Glu121Lys	missense_variant	Exon 3 of 9	ENST00000264677.9	NP_006208.1	O75830B4DDY9
SERPINI2	NM_001012303.3 link	c.361G>A	p.Glu121Lys	missense_variant	Exon 4 of 10		NP_001012303.2	O75830B4DDY9
SERPINI2	NM_001394327.1 link	c.361G>A	p.Glu121Lys	missense_variant	Exon 4 of 10		NP_001381256.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SERPINI2	ENST00000264677.9 link	c.361G>A	p.Glu121Lys	missense_variant	Exon 3 of 9	1	NM_006217.6	ENSP00000264677.4		O75830

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152156

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:

0.00

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:

0.00000797

AC:

AN:

251086

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135712

show subpopulations

Gnomad AFR exome

AF:

0.0000616

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:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000821

AC:

AN:

1461132

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

726878

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.00000990

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152156

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74322

show subpopulations

Gnomad4 AFR

AF:

0.00

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

Bravo

AF:

0.0000227

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.000109

EpiControl

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

Dec 26, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.361G>A (p.E121K) alteration is located in exon 3 (coding exon 2) of the SERPINI2 gene. This alteration results from a G to A substitution at nucleotide position 361, causing the glutamic acid (E) at amino acid position 121 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

0.13

BayesDel_addAF

Benign

0.0072

BayesDel_noAF

Uncertain

-0.050

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.14

T;T;T;T;T;.;T

Eigen

Uncertain

0.66

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.87

D;D;.;.;.;D;D

M_CAP

Benign

0.024

MetaRNN

Uncertain

0.62

D;D;D;D;D;D;D

MetaSVM

Uncertain

0.26

MutationAssessor

Benign

1.7

L;.;L;L;L;.;.

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-1.3

N;.;N;N;N;N;N

REVEL

Uncertain

0.36

Sift

Uncertain

0.013

D;.;D;D;D;D;D

Sift4G

Benign

0.25

T;T;T;T;T;T;.

Polyphen

1.0

D;.;D;D;D;.;.

Vest4

0.53

MutPred

0.52

Gain of methylation at E121 (P = 0.0354);.;Gain of methylation at E121 (P = 0.0354);Gain of methylation at E121 (P = 0.0354);Gain of methylation at E121 (P = 0.0354);Gain of methylation at E121 (P = 0.0354);.;

MVP

0.87

MPC

0.72

ClinPred

0.89

GERP RS

5.5

Varity_R

0.55

gMVP

0.34

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