rs2073601

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_005069.6(SIM2):ā€‹c.1447C>Gā€‹(p.Leu483Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,062 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L483M) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 34)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

SIM2
NM_005069.6 missense

Scores

2
17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.535
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 made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.2665121).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SIM2NM_005069.6 linkuse as main transcriptc.1447C>G p.Leu483Val missense_variant 10/11 ENST00000290399.11 NP_005060.1
SIM2NM_009586.5 linkuse as main transcriptc.1447C>G p.Leu483Val missense_variant 10/10 NP_033664.2
SIM2XM_011529694.2 linkuse as main transcriptc.1144C>G p.Leu382Val missense_variant 9/10 XP_011527996.1
SIM2XM_047440952.1 linkuse as main transcriptc.1144C>G p.Leu382Val missense_variant 9/10 XP_047296908.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SIM2ENST00000290399.11 linkuse as main transcriptc.1447C>G p.Leu483Val missense_variant 10/111 NM_005069.6 ENSP00000290399.6 Q14190-1
SIM2ENST00000431229.1 linkuse as main transcriptc.1258C>G p.Leu420Val missense_variant 9/101 ENSP00000392003.1 H7BZX8
SIM2ENST00000481185.1 linkuse as main transcriptn.2060C>G non_coding_transcript_exon_variant 10/102

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152194
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461868
Hom.:
0
Cov.:
74
AF XY:
0.00
AC XY:
0
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152194
Hom.:
0
Cov.:
34
AF XY:
0.0000135
AC XY:
1
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.27
T
Eigen
Benign
0.031
Eigen_PC
Benign
0.016
FATHMM_MKL
Benign
0.39
N
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.27
T
MetaSVM
Benign
-0.57
T
MutationAssessor
Uncertain
2.3
M
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.1
N
REVEL
Benign
0.13
Sift
Benign
0.15
T
Sift4G
Benign
0.58
T
Polyphen
0.012
B
Vest4
0.52
MutPred
0.56
Gain of catalytic residue at L483 (P = 0.032);
MVP
0.55
MPC
0.42
ClinPred
0.62
D
GERP RS
3.5
Varity_R
0.18
gMVP
0.28

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs2073601; hg19: chr21-38117308; API