3-167449318-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_006217.6(SERPINI2):c.1049C>T(p.Thr350Ile) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000311 in 1,608,180 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SERPINI2
NM_006217.6 missense, splice_region

Scores

Splicing: ADA: 0.9980

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.09

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 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.822

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SERPINI2	NM_006217.6 linkuse as main transcript	c.1049C>T	p.Thr350Ile	missense_variant, splice_region_variant	7/9	ENST00000264677.9
SERPINI2	NM_001012303.3 linkuse as main transcript	c.1049C>T	p.Thr350Ile	missense_variant, splice_region_variant	8/10
SERPINI2	NM_001394327.1 linkuse as main transcript	c.1049C>T	p.Thr350Ile	missense_variant, splice_region_variant	8/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
SERPINI2	ENST00000264677.9 linkuse as main transcript	c.1049C>T	p.Thr350Ile	missense_variant, splice_region_variant	7/9	1	NM_006217.6	P1
SERPINI2	ENST00000461846.5 linkuse as main transcript	c.1049C>T	p.Thr350Ile	missense_variant, splice_region_variant	7/9	1		P1
SERPINI2	ENST00000471111.5 linkuse as main transcript	c.1049C>T	p.Thr350Ile	missense_variant, splice_region_variant	6/8	1		P1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151882

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:

0.00000398

AC:

AN:

251104

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135774

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:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000275

AC:

AN:

1456298

Hom.:

Cov.:

AF XY:

0.00000414

AC XY:

AN XY:

724874

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:

0.00

Gnomad4 NFE exome

AF:

0.00000361

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151882

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74166

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:

0.00000756

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

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

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 26, 2023

The c.1049C>T (p.T350I) alteration is located in exon 7 (coding exon 6) of the SERPINI2 gene. This alteration results from a C to T substitution at nucleotide position 1049, causing the threonine (T) at amino acid position 350 to be replaced by an isoleucine (I). 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

0.43

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Uncertain

0.11

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.76

D;T;D;D;D

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.74

T;T;.;.;.

M_CAP

Uncertain

0.094

MetaRNN

Pathogenic

0.82

D;D;D;D;D

MetaSVM

Uncertain

0.69

MutationAssessor

Pathogenic

3.6

H;.;H;H;H

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.51

PROVEAN

Pathogenic

-5.1

D;.;D;D;D

REVEL

Pathogenic

0.69

Sift

Uncertain

0.0020

D;.;D;D;D

Sift4G

Uncertain

0.0040

D;D;D;D;D

Polyphen

0.99

D;.;D;D;D

Vest4

0.57

MVP

0.85

MPC

0.66

ClinPred

0.98

GERP RS

4.7

Varity_R

0.68

gMVP

0.64

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.97

SpliceAI score (max)

0.16

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