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GeneBe

9-104111759-G-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_006444.3(SMC2):c.1199G>T(p.Gly400Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000378 in 1,613,904 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 (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000041 ( 0 hom. )

Consequence

SMC2
NM_006444.3 missense

Scores

9
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.59
Variant links:
Genes affected
SMC2 (HGNC:14011): (structural maintenance of chromosomes 2) Predicted to enable ATP binding activity; chromatin binding activity; and single-stranded DNA binding activity. Involved in mitotic chromosome condensation. Located in condensed chromosome; cytoplasm; and nuclear lumen. Part of condensin complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.33364812).
BS2
High AC in GnomAdExome at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SMC2NM_006444.3 linkuse as main transcriptc.1199G>T p.Gly400Val missense_variant 10/25 ENST00000374793.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMC2ENST00000374793.8 linkuse as main transcriptc.1199G>T p.Gly400Val missense_variant 10/251 NM_006444.3 P1O95347-1
SMC2ENST00000286398.11 linkuse as main transcriptc.1199G>T p.Gly400Val missense_variant 10/251 P1O95347-1
SMC2ENST00000374787.7 linkuse as main transcriptc.1199G>T p.Gly400Val missense_variant 10/252 P1O95347-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152208
Hom.:
0
Cov.:
33
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000359
AC:
9
AN:
250900
Hom.:
0
AF XY:
0.0000369
AC XY:
5
AN XY:
135600
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000706
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000410
AC:
60
AN:
1461696
Hom.:
0
Cov.:
31
AF XY:
0.0000413
AC XY:
30
AN XY:
727142
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:
0.0000936
Gnomad4 NFE exome
AF:
0.0000486
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152208
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000447
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

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 GeneticsAug 02, 2021The c.1199G>T (p.G400V) alteration is located in exon 10 (coding exon 9) of the SMC2 gene. This alteration results from a G to T substitution at nucleotide position 1199, causing the glycine (G) at amino acid position 400 to be replaced by a valine (V). 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
0.32
BayesDel_addAF
Benign
-0.018
T
BayesDel_noAF
Benign
-0.11
Cadd
Benign
22
Dann
Uncertain
0.99
DEOGEN2
Benign
0.41
T;T;T
Eigen
Benign
0.15
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.89
D;.;.
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.33
T;T;T
MetaSVM
Uncertain
-0.050
T
MutationAssessor
Uncertain
2.7
M;M;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-2.1
N;N;N
REVEL
Uncertain
0.56
Sift
Benign
0.038
D;D;D
Sift4G
Uncertain
0.052
T;T;T
Polyphen
0.41
B;B;B
Vest4
0.48
MVP
0.73
MPC
0.26
ClinPred
0.37
T
GERP RS
3.8
Varity_R
0.37
gMVP
0.48

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: rs149471302; hg19: chr9-106874040; API