rs41309046

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_020919.4(ALS2):​c.3517G>A​(p.Glu1173Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00107 in 1,610,156 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0012 ( 2 hom., cov: 32)
Exomes 𝑓: 0.0010 ( 8 hom. )

Consequence

ALS2
NM_020919.4 missense

Scores

4
7
6

Clinical Significance

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

Conservation

PhyloP100: 6.09

Publications

13 publications found
Variant links:
Genes affected
ALS2 (HGNC:443): (alsin Rho guanine nucleotide exchange factor ALS2) The protein encoded by this gene contains an ATS1/RCC1-like domain, a RhoGEF domain, and a vacuolar protein sorting 9 (VPS9) domain, all of which are guanine-nucleotide exchange factors that activate members of the Ras superfamily of GTPases. The protein functions as a guanine nucleotide exchange factor for the small GTPase RAB5. The protein localizes with RAB5 on early endosomal compartments, and functions as a modulator for endosomal dynamics. Mutations in this gene result in several forms of juvenile lateral sclerosis and infantile-onset ascending spastic paralysis. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2008]
ALS2 Gene-Disease associations (from GenCC):
  • ALS2-related motor neuron disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • amyotrophic lateral sclerosis type 2, juvenile
    Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
  • infantile-onset ascending hereditary spastic paralysis
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet
  • juvenile primary lateral sclerosis
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
  • juvenile amyotrophic lateral sclerosis
    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 -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.01108551).
BP6
Variant 2-201723437-C-T is Benign according to our data. Variant chr2-201723437-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 220656.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.00123 (187/152216) while in subpopulation EAS AF = 0.0251 (130/5186). AF 95% confidence interval is 0.0216. There are 2 homozygotes in GnomAd4. There are 93 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020919.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALS2
NM_020919.4
MANE Select
c.3517G>Ap.Glu1173Lys
missense
Exon 22 of 34NP_065970.2
ALS2
NM_001410975.1
c.3517G>Ap.Glu1173Lys
missense
Exon 22 of 34NP_001397904.1A0A7P0T8F3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALS2
ENST00000264276.11
TSL:1 MANE Select
c.3517G>Ap.Glu1173Lys
missense
Exon 22 of 34ENSP00000264276.6Q96Q42-1
ALS2
ENST00000482891.6
TSL:1
n.4285G>A
non_coding_transcript_exon
Exon 21 of 22
ALS2
ENST00000680497.1
c.3619G>Ap.Glu1207Lys
missense
Exon 22 of 34ENSP00000505954.1A0A7P0Z4F3

Frequencies

GnomAD3 genomes
AF:
0.00123
AC:
187
AN:
152098
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00346
Gnomad EAS
AF:
0.0250
Gnomad SAS
AF:
0.00166
Gnomad FIN
AF:
0.000189
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000397
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.00256
AC:
639
AN:
249486
AF XY:
0.00248
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000232
Gnomad ASJ exome
AF:
0.00238
Gnomad EAS exome
AF:
0.0294
Gnomad FIN exome
AF:
0.0000464
Gnomad NFE exome
AF:
0.000380
Gnomad OTH exome
AF:
0.00132
GnomAD4 exome
AF:
0.00105
AC:
1530
AN:
1457940
Hom.:
8
Cov.:
30
AF XY:
0.00107
AC XY:
777
AN XY:
725614
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33416
American (AMR)
AF:
0.000224
AC:
10
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00249
AC:
65
AN:
26112
East Asian (EAS)
AF:
0.0209
AC:
830
AN:
39650
South Asian (SAS)
AF:
0.00135
AC:
116
AN:
86170
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53412
Middle Eastern (MID)
AF:
0.000694
AC:
4
AN:
5762
European-Non Finnish (NFE)
AF:
0.000371
AC:
411
AN:
1108452
Other (OTH)
AF:
0.00153
AC:
92
AN:
60248
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.460
Heterozygous variant carriers
0
89
178
266
355
444
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
30
60
90
120
150
<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:
0.00123
AC:
187
AN:
152216
Hom.:
2
Cov.:
32
AF XY:
0.00125
AC XY:
93
AN XY:
74420
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41530
American (AMR)
AF:
0.000327
AC:
5
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00346
AC:
12
AN:
3472
East Asian (EAS)
AF:
0.0251
AC:
130
AN:
5186
South Asian (SAS)
AF:
0.00166
AC:
8
AN:
4806
European-Finnish (FIN)
AF:
0.000189
AC:
2
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000397
AC:
27
AN:
68002
Other (OTH)
AF:
0.000474
AC:
1
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
9
19
28
38
47
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000729
Hom.:
1
Bravo
AF:
0.00155
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000778
AC:
3
ExAC
AF:
0.00221
AC:
267
Asia WGS
AF:
0.0130
AC:
44
AN:
3478
EpiCase
AF:
0.000600
EpiControl
AF:
0.000356

ClinVar

ClinVar submissions
Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
3
not provided (3)
-
-
1
ALS2-related disorder (1)
-
-
1
Hereditary spastic paraplegia (1)
-
-
1
Infantile-onset ascending hereditary spastic paralysis (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.78
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.29
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.64
D
Eigen
Uncertain
0.40
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
0.99
D
MetaRNN
Benign
0.011
T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
1.7
L
PhyloP100
6.1
PrimateAI
Pathogenic
0.85
D
PROVEAN
Uncertain
-3.4
D
REVEL
Benign
0.26
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.0060
D
Polyphen
0.97
D
Vest4
0.88
MVP
0.77
MPC
0.68
ClinPred
0.043
T
GERP RS
4.4
Varity_R
0.57
gMVP
0.85
Mutation Taster
=96/4
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: rs41309046; hg19: chr2-202588160; COSMIC: COSV99968522; COSMIC: COSV99968522; API