rs61750375

Variant summary

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

The NM_001122752.2(SERPINI1):​c.289G>A​(p.Val97Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00504 in 1,613,786 control chromosomes in the GnomAD database, including 35 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (β˜…β˜…).

Frequency

Genomes: 𝑓 0.0036 ( 2 hom., cov: 32)
Exomes 𝑓: 0.0052 ( 33 hom. )

Consequence

SERPINI1
NM_001122752.2 missense

Scores

19

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 1.26
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.003496945).
BP6
Variant 3-167790410-G-A is Benign according to our data. Variant chr3-167790410-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 344125.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-167790410-G-A is described in Lovd as [Likely_benign].
BS2
High AC in GnomAd4 at 547 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SERPINI1NM_001122752.2 linkc.289G>A p.Val97Ile missense_variant Exon 3 of 9 ENST00000446050.7 NP_001116224.1 Q99574A0A0S2Z455
SERPINI1NM_005025.5 linkc.289G>A p.Val97Ile missense_variant Exon 3 of 9 NP_005016.1 Q99574A0A0S2Z455
SERPINI1XM_017006618.3 linkc.289G>A p.Val97Ile missense_variant Exon 3 of 9 XP_016862107.1 Q99574A0A0S2Z455

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SERPINI1ENST00000446050.7 linkc.289G>A p.Val97Ile missense_variant Exon 3 of 9 1 NM_001122752.2 ENSP00000397373.2 Q99574
SERPINI1ENST00000295777.9 linkc.289G>A p.Val97Ile missense_variant Exon 3 of 9 1 ENSP00000295777.5 Q99574
SERPINI1ENST00000472747.2 linkc.289G>A p.Val97Ile missense_variant Exon 3 of 5 3 ENSP00000420561.2 C9JDY5
SERPINI1ENST00000472941.5 linkc.289G>A p.Val97Ile missense_variant Exon 3 of 3 3 ENSP00000420133.1 C9JQU8

Frequencies

GnomAD3 genomes
AF:
0.00358
AC:
545
AN:
152154
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000724
Gnomad AMI
AF:
0.00439
Gnomad AMR
AF:
0.00367
Gnomad ASJ
AF:
0.00749
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00580
Gnomad FIN
AF:
0.000755
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.00559
Gnomad OTH
AF:
0.00479
GnomAD3 exomes
AF:
0.00475
AC:
1193
AN:
251358
Hom.:
7
AF XY:
0.00531
AC XY:
721
AN XY:
135840
show subpopulations
Gnomad AFR exome
AF:
0.000492
Gnomad AMR exome
AF:
0.00344
Gnomad ASJ exome
AF:
0.00566
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00755
Gnomad FIN exome
AF:
0.000739
Gnomad NFE exome
AF:
0.00638
Gnomad OTH exome
AF:
0.00603
GnomAD4 exome
AF:
0.00519
AC:
7589
AN:
1461514
Hom.:
33
Cov.:
31
AF XY:
0.00539
AC XY:
3919
AN XY:
727068
show subpopulations
Gnomad4 AFR exome
AF:
0.000867
Gnomad4 AMR exome
AF:
0.00353
Gnomad4 ASJ exome
AF:
0.00674
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00818
Gnomad4 FIN exome
AF:
0.00101
Gnomad4 NFE exome
AF:
0.00543
Gnomad4 OTH exome
AF:
0.00601
GnomAD4 genome
AF:
0.00359
AC:
547
AN:
152272
Hom.:
2
Cov.:
32
AF XY:
0.00328
AC XY:
244
AN XY:
74450
show subpopulations
Gnomad4 AFR
AF:
0.000722
Gnomad4 AMR
AF:
0.00366
Gnomad4 ASJ
AF:
0.00749
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00601
Gnomad4 FIN
AF:
0.000755
Gnomad4 NFE
AF:
0.00560
Gnomad4 OTH
AF:
0.00474
Alfa
AF:
0.00562
Hom.:
4
Bravo
AF:
0.00414
TwinsUK
AF:
0.00351
AC:
13
ALSPAC
AF:
0.00493
AC:
19
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00651
AC:
56
ExAC
AF:
0.00464
AC:
564
Asia WGS
AF:
0.00231
AC:
8
AN:
3478
EpiCase
AF:
0.00676
EpiControl
AF:
0.00616

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
-
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Sep 14, 2016
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Familial encephalopathy with neuroserpin inclusion bodies Benign:3
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 24, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

SERPINI1-related disorder Benign:1
Jun 10, 2019
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.089
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
2.7
DANN
Benign
0.11
DEOGEN2
Benign
0.067
T;T;T;T
Eigen
Benign
-0.98
Eigen_PC
Benign
-0.77
FATHMM_MKL
Benign
0.59
D
LIST_S2
Benign
0.51
T;.;T;T
M_CAP
Benign
0.033
D
MetaRNN
Benign
0.0035
T;T;T;T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
-0.96
.;N;N;.
PrimateAI
Benign
0.27
T
PROVEAN
Benign
0.72
N;N;N;N
REVEL
Benign
0.13
Sift
Benign
1.0
T;T;T;T
Sift4G
Benign
1.0
T;T;T;T
Polyphen
0.0
.;B;B;.
Vest4
0.12
MVP
0.35
MPC
0.074
ClinPred
0.00051
T
GERP RS
3.4
Varity_R
0.081
gMVP
0.13

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.

Other links and lift over

dbSNP: rs61750375; hg19: chr3-167508198; COSMIC: COSV55508156; API