rs148986846

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_014334.4(FRRS1L):​c.533T>C​(p.Val178Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00106 in 1,614,132 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00048 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0011 ( 3 hom. )

Consequence

FRRS1L
NM_014334.4 missense

Scores

3
5
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 9.32

Publications

4 publications found
Variant links:
Genes affected
FRRS1L (HGNC:1362): (ferric chelate reductase 1 like) This gene encodes a component of the outer-core of an alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor protein in the brain. The encoded protein is thought to interact with inner-core components of the receptor, and play a role in the modulation of glutamate signaling. Mutations in this gene are associated with early infantile epileptic encephalopathy 37. [provided by RefSeq, Jul 2016]
FRRS1L Gene-Disease associations (from GenCC):
  • genetic developmental and epileptic encephalopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • developmental and epileptic encephalopathy, 37
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • autosomal recessive non-syndromic intellectual disability
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.25919452).
BP6
Variant 9-109141519-A-G is Benign according to our data. Variant chr9-109141519-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 476307.
BS2
High Homozygotes in GnomAdExome4 at 3 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014334.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FRRS1L
NM_014334.4
MANE Select
c.533T>Cp.Val178Ala
missense
Exon 4 of 5NP_055149.3Q9P0K9

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FRRS1L
ENST00000561981.5
TSL:1 MANE Select
c.533T>Cp.Val178Ala
missense
Exon 4 of 5ENSP00000477141.2Q9P0K9
FRRS1L
ENST00000642157.1
n.2768T>C
non_coding_transcript_exon
Exon 3 of 3
FRRS1L
ENST00000644736.1
n.*505T>C
non_coding_transcript_exon
Exon 5 of 6ENSP00000494579.1A0A2R8YDG8

Frequencies

GnomAD3 genomes
AF:
0.000480
AC:
73
AN:
152144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00145
Gnomad FIN
AF:
0.000283
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000838
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.000609
AC:
153
AN:
251430
AF XY:
0.000721
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.000888
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.00112
AC:
1634
AN:
1461870
Hom.:
3
Cov.:
32
AF XY:
0.00112
AC XY:
815
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.000119
AC:
4
AN:
33480
American (AMR)
AF:
0.0000671
AC:
3
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00185
AC:
160
AN:
86258
European-Finnish (FIN)
AF:
0.000206
AC:
11
AN:
53418
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.00128
AC:
1422
AN:
1111992
Other (OTH)
AF:
0.000546
AC:
33
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
88
176
265
353
441
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
64
128
192
256
320
<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:
0.000479
AC:
73
AN:
152262
Hom.:
0
Cov.:
32
AF XY:
0.000403
AC XY:
30
AN XY:
74438
show subpopulations
African (AFR)
AF:
0.0000963
AC:
4
AN:
41550
American (AMR)
AF:
0.0000654
AC:
1
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00146
AC:
7
AN:
4810
European-Finnish (FIN)
AF:
0.000283
AC:
3
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000838
AC:
57
AN:
68032
Other (OTH)
AF:
0.000474
AC:
1
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
4
8
13
17
21
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000659
Hom.:
0
Bravo
AF:
0.000446
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00130
AC:
5
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000733
AC:
89
Asia WGS
AF:
0.00289
AC:
10
AN:
3478
EpiCase
AF:
0.00136
EpiControl
AF:
0.000711

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Developmental and epileptic encephalopathy, 37 (2)
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.86
BayesDel_addAF
Benign
-0.071
T
BayesDel_noAF
Uncertain
0.090
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.28
T
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
D
M_CAP
Benign
0.0091
T
MetaRNN
Benign
0.26
T
MetaSVM
Benign
-0.50
T
MutationAssessor
Benign
1.0
L
PhyloP100
9.3
PrimateAI
Pathogenic
0.87
D
Sift4G
Benign
0.10
T
Polyphen
1.0
D
Vest4
0.86
MVP
0.79
MPC
0.28
ClinPred
0.094
T
GERP RS
5.5
Varity_R
0.43
gMVP
0.59
Mutation Taster
=73/27
polymorphism

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: rs148986846; hg19: chr9-111903799; API