3-167825273-A-G

Position:

chr3-167825273-A-G

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001122752.2(SERPINI1):c.1183A>G(p.Met395Val) variant causes a missense change. The variant allele was found at a frequency of 0.000116 in 1,613,486 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00041 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000085 ( 0 hom. )

Consequence

SERPINI1
NM_001122752.2 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 5.42

Variant links:

Genes affected

SERPINI1 (HGNC:8943): (serpin family I member 1) This gene encodes a member of the serpin superfamily of serine proteinase inhibitors. The protein is primarily secreted by axons in the brain, and preferentially reacts with and inhibits tissue-type plasminogen activator. It is thought to play a role in the regulation of axonal growth and the development of synaptic plasticity. Mutations in this gene result in familial encephalopathy with neuroserpin inclusion bodies (FENIB), which is a dominantly inherited form of familial encephalopathy and epilepsy characterized by the accumulation of mutant neuroserpin polymers. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Jul 2008]

SERPINI1 links:

SERPINI1 (HGNC:):

SERPINI1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.05598384).

BP6

Variant 3-167825273-A-G is Benign according to our data. Variant chr3-167825273-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 344133.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAd4 at 63 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SERPINI1	NM_001122752.2 linkuse as main transcript	c.1183A>G	p.Met395Val	missense_variant	9/9	ENST00000446050.7	NP_001116224.1	Q99574A0A0S2Z455
SERPINI1	NM_005025.5 linkuse as main transcript	c.1183A>G	p.Met395Val	missense_variant	9/9		NP_005016.1	Q99574A0A0S2Z455
SERPINI1	XM_017006618.3 linkuse as main transcript	c.1183A>G	p.Met395Val	missense_variant	9/9		XP_016862107.1	Q99574A0A0S2Z455

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SERPINI1	ENST00000446050.7 linkuse as main transcript	c.1183A>G	p.Met395Val	missense_variant	9/9	1	NM_001122752.2	ENSP00000397373.2		Q99574

Frequencies

GnomAD3 genomes

AF:

0.000401

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00128

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.000576

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000119

AC:

AN:

251398

Hom.:

AF XY:

0.000110

AC XY:

AN XY:

135872

show subpopulations

Gnomad AFR exome

AF:

0.00105

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.000298

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000849

AC:

124

AN:

1461152

Hom.:

Cov.:

AF XY:

0.0000908

AC XY:

AN XY:

726930

show subpopulations

Gnomad4 AFR exome

AF:

0.00197

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.000306

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000207

Gnomad4 OTH exome

AF:

0.000282

GnomAD4 genome

AF:

0.000414

AC:

AN:

152334

Hom.:

Cov.:

AF XY:

0.000376

AC XY:

AN XY:

74494

show subpopulations

Gnomad4 AFR

AF:

0.00132

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.000576

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000806

Hom.:

Bravo

AF:

0.000325

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000908

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000198

AC:

Asia WGS

AF:

0.00173

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000178

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	May 01, 2024	SERPINI1: BP4, BS1:Supporting -

Familial encephalopathy with neuroserpin inclusion bodies

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 16, 2024	- -
Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.10

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.18

T;T

Eigen

Uncertain

0.28

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.78

.;T

M_CAP

Benign

0.036

MetaRNN

Benign

0.056

T;T

MetaSVM

Benign

-0.44

MutationAssessor

Benign

0.82

L;L

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-1.0

N;N

REVEL

Uncertain

0.52

Sift

Benign

0.18

T;T

Sift4G

Benign

0.16

T;T

Polyphen

0.97

D;D

Vest4

0.52

MVP

0.59

MPC

0.27

ClinPred

0.047

GERP RS

4.5

Varity_R

0.58

gMVP

0.57

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