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GeneBe

17-2068889-C-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_017575.5(SMG6):​c.3724G>A​(p.Glu1242Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00109 in 1,614,106 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0018 ( 3 hom., cov: 32)
Exomes 𝑓: 0.0010 ( 9 hom. )

Consequence

SMG6
NM_017575.5 missense

Scores

4
8
6

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 7.27
Variant links:
Genes affected
SMG6 (HGNC:17809): (SMG6 nonsense mediated mRNA decay factor) This gene encodes a component of the telomerase ribonucleoprotein complex responsible for the replication and maintenance of chromosome ends. The encoded protein also plays a role in the nonsense-mediated mRNA decay (NMD) pathway, providing the endonuclease activity near the premature translation termination codon that is needed to initiate NMD. Alternatively spliced transcript variants encoding distinct protein isoforms have been described. [provided by RefSeq, Feb 2014]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.009394765).
BP6
Variant 17-2068889-C-T is Benign according to our data. Variant chr17-2068889-C-T is described in ClinVar as [Benign]. Clinvar id is 756784.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAd4 at 281 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SMG6NM_017575.5 linkuse as main transcriptc.3724G>A p.Glu1242Lys missense_variant 16/19 ENST00000263073.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMG6ENST00000263073.11 linkuse as main transcriptc.3724G>A p.Glu1242Lys missense_variant 16/191 NM_017575.5 P1Q86US8-1

Frequencies

GnomAD3 genomes
AF:
0.00185
AC:
281
AN:
152234
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0222
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000603
Gnomad OTH
AF:
0.000957
GnomAD3 exomes
AF:
0.00201
AC:
505
AN:
251262
Hom.:
3
AF XY:
0.00206
AC XY:
280
AN XY:
135832
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.0173
Gnomad NFE exome
AF:
0.00107
Gnomad OTH exome
AF:
0.00131
GnomAD4 exome
AF:
0.00101
AC:
1474
AN:
1461872
Hom.:
9
Cov.:
31
AF XY:
0.000996
AC XY:
724
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.0172
Gnomad4 NFE exome
AF:
0.000426
Gnomad4 OTH exome
AF:
0.00126
GnomAD4 genome
AF:
0.00185
AC:
281
AN:
152234
Hom.:
3
Cov.:
32
AF XY:
0.00274
AC XY:
204
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0222
Gnomad4 NFE
AF:
0.000603
Gnomad4 OTH
AF:
0.000957
Alfa
AF:
0.000522
Hom.:
2
Bravo
AF:
0.000257
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.00190
AC:
231
EpiCase
AF:
0.000218
EpiControl
AF:
0.000533

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeMay 29, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Benign
-0.043
T
BayesDel_noAF
Uncertain
0.13
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.23
T;.;.;T
Eigen
Pathogenic
0.73
Eigen_PC
Pathogenic
0.77
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.95
D;.;D;D
MetaRNN
Benign
0.0093
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.97
L;.;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.77
T
PROVEAN
Uncertain
-2.7
D;.;D;.
REVEL
Uncertain
0.36
Sift
Uncertain
0.0060
D;.;D;.
Sift4G
Uncertain
0.049
D;D;D;D
Polyphen
1.0
D;.;.;.
Vest4
0.90
MVP
0.73
MPC
0.73
ClinPred
0.15
T
GERP RS
6.0
Varity_R
0.83
gMVP
0.66

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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: rs144810784; hg19: chr17-1972183; COSMIC: COSV99558453; COSMIC: COSV99558453; API