rs149238028

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001122752.2(SERPINI1):​c.1221C>A​(p.Phe407Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000745 in 1,610,018 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. F407F) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

SERPINI1
NM_001122752.2 missense

Scores

1
4
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.13

Publications

3 publications found
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 Gene-Disease associations (from GenCC):
  • progressive myoclonus epilepsy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • familial encephalopathy with neuroserpin inclusion bodies
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.24826673).
BS2
High AC in GnomAdExome4 at 9 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001122752.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SERPINI1
NM_001122752.2
MANE Select
c.1221C>Ap.Phe407Leu
missense
Exon 9 of 9NP_001116224.1A0A0S2Z455
SERPINI1
NM_005025.5
c.1221C>Ap.Phe407Leu
missense
Exon 9 of 9NP_005016.1A0A0S2Z455

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SERPINI1
ENST00000446050.7
TSL:1 MANE Select
c.1221C>Ap.Phe407Leu
missense
Exon 9 of 9ENSP00000397373.2Q99574
SERPINI1
ENST00000295777.9
TSL:1
c.1221C>Ap.Phe407Leu
missense
Exon 9 of 9ENSP00000295777.5Q99574
SERPINI1
ENST00000872947.1
c.1221C>Ap.Phe407Leu
missense
Exon 9 of 9ENSP00000543006.1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152004
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000484
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
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251368
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000617
AC:
9
AN:
1458014
Hom.:
0
Cov.:
28
AF XY:
0.00000551
AC XY:
4
AN XY:
725640
show subpopulations
African (AFR)
AF:
0.0000300
AC:
1
AN:
33374
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26102
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39610
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86202
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53408
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000722
AC:
8
AN:
1108576
Other (OTH)
AF:
0.00
AC:
0
AN:
60264
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.442
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152004
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74230
show subpopulations
African (AFR)
AF:
0.0000484
AC:
2
AN:
41364
American (AMR)
AF:
0.00
AC:
0
AN:
15258
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10582
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68000
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.558
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000113
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Familial encephalopathy with neuroserpin inclusion bodies (1)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.65
BayesDel_addAF
Benign
-0.017
T
BayesDel_noAF
Uncertain
-0.080
CADD
Benign
13
DANN
Benign
0.54
DEOGEN2
Benign
0.068
T
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.43
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.057
D
MetaRNN
Benign
0.25
T
MetaSVM
Benign
-0.72
T
MutationAssessor
Benign
0.81
L
PhyloP100
2.1
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-0.31
N
REVEL
Uncertain
0.51
Sift
Benign
1.0
T
Sift4G
Benign
0.58
T
Polyphen
0.57
P
Vest4
0.61
MutPred
0.11
Gain of helix (P = 0.132)
MVP
0.73
MPC
0.16
ClinPred
0.088
T
GERP RS
2.0
Varity_R
0.38
gMVP
0.43
Mutation Taster
=12/88
disease causing

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

Other links and lift over

dbSNP: rs149238028; hg19: chr3-167543099; API