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GeneBe

19-38881150-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_012237.4(SIRT2):c.697G>A(p.Val233Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000191 in 1,612,748 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00018 ( 2 hom. )

Consequence

SIRT2
NM_012237.4 missense

Scores

1
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.63
Variant links:
Genes affected
SIRT2 (HGNC:10886): (sirtuin 2) This gene encodes a member of the sirtuin family of proteins, homologs to the yeast Sir2 protein. Members of the sirtuin family are characterized by a sirtuin core domain and grouped into four classes. The functions of human sirtuins have not yet been determined; however, yeast sirtuin proteins are known to regulate epigenetic gene silencing and suppress recombination of rDNA. Studies suggest that the human sirtuins may function as intracellular regulatory proteins with mono-ADP-ribosyltransferase activity. The protein encoded by this gene is included in class I of the sirtuin family. Several transcript variants are resulted from alternative splicing of this gene. [provided by RefSeq, Jul 2010]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.025259107).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SIRT2NM_012237.4 linkuse as main transcriptc.697G>A p.Val233Ile missense_variant 11/16 ENST00000249396.12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SIRT2ENST00000249396.12 linkuse as main transcriptc.697G>A p.Val233Ile missense_variant 11/161 NM_012237.4 P4Q8IXJ6-1

Frequencies

GnomAD3 genomes
AF:
0.000276
AC:
42
AN:
152118
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.00270
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000848
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000419
AC:
104
AN:
248192
Hom.:
1
AF XY:
0.000395
AC XY:
53
AN XY:
134102
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000100
Gnomad EAS exome
AF:
0.00202
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000374
Gnomad NFE exome
AF:
0.000481
Gnomad OTH exome
AF:
0.000659
GnomAD4 exome
AF:
0.000181
AC:
265
AN:
1460512
Hom.:
2
Cov.:
31
AF XY:
0.000169
AC XY:
123
AN XY:
726400
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000115
Gnomad4 EAS exome
AF:
0.00174
Gnomad4 SAS exome
AF:
0.0000233
Gnomad4 FIN exome
AF:
0.000637
Gnomad4 NFE exome
AF:
0.000108
Gnomad4 OTH exome
AF:
0.000547
GnomAD4 genome
AF:
0.000282
AC:
43
AN:
152236
Hom.:
0
Cov.:
32
AF XY:
0.000282
AC XY:
21
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.000120
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.000576
Gnomad4 EAS
AF:
0.00271
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.000848
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000279
Hom.:
2
Bravo
AF:
0.000272
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000577
AC:
70
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 25, 2023The c.697G>A (p.V233I) alteration is located in exon 11 (coding exon 11) of the SIRT2 gene. This alteration results from a G to A substitution at nucleotide position 697, causing the valine (V) at amino acid position 233 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.36
Cadd
Benign
16
Dann
Benign
0.97
Eigen
Benign
-0.45
Eigen_PC
Benign
-0.49
FATHMM_MKL
Uncertain
0.84
D
M_CAP
Benign
0.061
D
MetaRNN
Benign
0.025
T;T;T;T;T
MetaSVM
Benign
-0.75
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.31
T
PROVEAN
Benign
0.44
N;N;N;.;N
REVEL
Benign
0.17
Sift
Benign
1.0
T;T;D;.;D
Polyphen
0.67, 0.033
.;P;B;.;.
Vest4
0.18
MVP
0.33
MPC
0.18
ClinPred
0.093
T
GERP RS
0.45
Varity_R
0.15
gMVP
0.46

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: rs199824317; hg19: chr19-39371790; COSMIC: COSV50874517; COSMIC: COSV50874517; API