rs149282278

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_005069.6(SIM2):​c.400G>A​(p.Asp134Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000508 in 1,613,408 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D134H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

SIM2
NM_005069.6 missense

Scores

2
8
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.40

Publications

3 publications found
Variant links:
Genes affected
SIM2 (HGNC:10883): (SIM bHLH transcription factor 2) This gene represents a homolog of the Drosophila single-minded (sim) gene, which encodes a transcription factor that is a master regulator of neurogenesis. The encoded protein is ubiquitinated by RING-IBR-RING-type E3 ubiquitin ligases, including the parkin RBR E3 ubiquitin protein ligase. This gene maps within the so-called Down syndrome chromosomal region, and is thus thought to contribute to some specific Down syndrome phenotypes. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Sep 2014]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.31838346).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005069.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SIM2
NM_005069.6
MANE Select
c.400G>Ap.Asp134Asn
missense
Exon 4 of 11NP_005060.1Q14190-1
SIM2
NM_009586.5
c.400G>Ap.Asp134Asn
missense
Exon 4 of 10NP_033664.2Q14190-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SIM2
ENST00000290399.11
TSL:1 MANE Select
c.400G>Ap.Asp134Asn
missense
Exon 4 of 11ENSP00000290399.6Q14190-1
SIM2
ENST00000431229.1
TSL:1
c.211G>Ap.Asp71Asn
missense
Exon 3 of 10ENSP00000392003.1H7BZX8
SIM2
ENST00000483178.2
TSL:3
c.109G>Ap.Asp37Asn
missense
Exon 2 of 2ENSP00000476273.1V9GY04

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
151814
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000517
AC:
13
AN:
251394
AF XY:
0.0000442
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000464
Gnomad NFE exome
AF:
0.0000703
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000527
AC:
77
AN:
1461476
Hom.:
0
Cov.:
31
AF XY:
0.0000385
AC XY:
28
AN XY:
727090
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33474
American (AMR)
AF:
0.0000894
AC:
4
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.000101
AC:
4
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86246
European-Finnish (FIN)
AF:
0.0000188
AC:
1
AN:
53314
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000594
AC:
66
AN:
1111744
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60380
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
4
8
11
15
19
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
151932
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74258
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41422
American (AMR)
AF:
0.00
AC:
0
AN:
15260
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4802
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10516
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000736
AC:
5
AN:
67978
Other (OTH)
AF:
0.00
AC:
0
AN:
2102
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000872
Hom.:
0
Bravo
AF:
0.0000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.50
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.80
D
Eigen
Uncertain
0.55
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.97
D
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.32
T
MetaSVM
Benign
-0.50
T
MutationAssessor
Benign
1.7
L
PhyloP100
9.4
PrimateAI
Uncertain
0.78
T
PROVEAN
Pathogenic
-4.5
D
REVEL
Benign
0.22
Sift
Uncertain
0.026
D
Sift4G
Benign
0.091
T
Polyphen
0.99
D
Vest4
0.59
MVP
0.48
MPC
0.99
ClinPred
0.79
D
GERP RS
5.5
Varity_R
0.48
gMVP
0.44
Mutation Taster
=66/34
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: rs149282278; hg19: chr21-38092173; COSMIC: COSV51768704; API