rs61735306

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001122752.2(SERPINI1):​c.106C>A​(p.Arg36Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00125 in 1,614,004 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R36H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00087 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0013 ( 1 hom. )

Consequence

SERPINI1
NM_001122752.2 missense

Scores

2
16

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 3.31

Publications

4 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, Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.033968598).
BP6
Variant 3-167789234-C-A is Benign according to our data. Variant chr3-167789234-C-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 344121.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 132 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.106C>Ap.Arg36Ser
missense
Exon 2 of 9NP_001116224.1
SERPINI1
NM_005025.5
c.106C>Ap.Arg36Ser
missense
Exon 2 of 9NP_005016.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SERPINI1
ENST00000446050.7
TSL:1 MANE Select
c.106C>Ap.Arg36Ser
missense
Exon 2 of 9ENSP00000397373.2
SERPINI1
ENST00000295777.9
TSL:1
c.106C>Ap.Arg36Ser
missense
Exon 2 of 9ENSP00000295777.5
SERPINI1
ENST00000872947.1
c.106C>Ap.Arg36Ser
missense
Exon 2 of 9ENSP00000543006.1

Frequencies

GnomAD3 genomes
AF:
0.000867
AC:
132
AN:
152170
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.000566
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00165
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000998
AC:
251
AN:
251416
AF XY:
0.00102
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.000347
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000832
Gnomad NFE exome
AF:
0.00177
Gnomad OTH exome
AF:
0.000652
GnomAD4 exome
AF:
0.00129
AC:
1880
AN:
1461834
Hom.:
1
Cov.:
31
AF XY:
0.00130
AC XY:
947
AN XY:
727212
show subpopulations
African (AFR)
AF:
0.000239
AC:
8
AN:
33480
American (AMR)
AF:
0.000358
AC:
16
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.000406
AC:
35
AN:
86252
European-Finnish (FIN)
AF:
0.00114
AC:
61
AN:
53410
Middle Eastern (MID)
AF:
0.000347
AC:
2
AN:
5768
European-Non Finnish (NFE)
AF:
0.00154
AC:
1709
AN:
1111986
Other (OTH)
AF:
0.000811
AC:
49
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
105
211
316
422
527
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
60
120
180
240
300
<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:
0.000867
AC:
132
AN:
152170
Hom.:
0
Cov.:
33
AF XY:
0.000699
AC XY:
52
AN XY:
74340
show subpopulations
African (AFR)
AF:
0.000193
AC:
8
AN:
41440
American (AMR)
AF:
0.000327
AC:
5
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.000566
AC:
6
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00165
AC:
112
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
6
12
18
24
30
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00143
Hom.:
1
Bravo
AF:
0.000861
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00140
AC:
12
ExAC
AF:
0.00112
AC:
136

ClinVar

ClinVar submissions as Germline
Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
4
not provided (4)
-
-
2
Familial encephalopathy with neuroserpin inclusion bodies (2)
-
-
1
SERPINI1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Benign
0.097
T
Eigen
Benign
-0.21
Eigen_PC
Benign
0.00041
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Benign
0.85
T
M_CAP
Benign
0.026
D
MetaRNN
Benign
0.034
T
MetaSVM
Benign
-0.66
T
MutationAssessor
Benign
0.82
L
PhyloP100
3.3
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-0.81
N
REVEL
Benign
0.26
Sift
Benign
0.26
T
Sift4G
Benign
0.40
T
Polyphen
0.032
B
Vest4
0.23
MVP
0.47
MPC
0.11
ClinPred
0.0040
T
GERP RS
5.2
Varity_R
0.25
gMVP
0.28
Mutation Taster
=97/3
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs61735306; hg19: chr3-167507022; API