Genetic Variant NM_001375584.1:c.833A>G (chr1-183529523-A-G) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001375584.1(SMG7):c.833A>G(p.Glu278Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000447 in 1,612,306 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 0.00025 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

SMG7
NM_001375584.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.50

Publications

2 publications found

Variant links:

Genes affected

SMG7 (HGNC:16792): (SMG7 nonsense mediated mRNA decay factor) This gene encodes a protein that is essential for nonsense-mediated mRNA decay (NMD); a process whereby transcripts with premature termination codons are targeted for rapid degradation by a mRNA decay complex. The mRNA decay complex consists, in part, of this protein along with proteins SMG5 and UPF1. The N-terminal domain of this protein is thought to mediate its association with SMG5 or UPF1 while the C-terminal domain interacts with the mRNA decay complex. This protein may therefore couple changes in UPF1 phosphorylation state to the degradation of NMD-candidate transcripts. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Aug 2011]

SMG7 Gene-Disease associations (from GenCC):

autoimmune disease
Inheritance: AD Classification: NO_KNOWN Submitted by: Illumina

SMG7 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.06960258).

BS2

High AC in GnomAd4 at 38 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001375584.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SMG7	NM_001375584.1	MANE Select	c.833A>G	p.Glu278Gly	missense	Exon 8 of 23	NP_001362513.1	A0A8I5KYV3
SMG7	NM_001350220.2		c.920A>G	p.Glu307Gly	missense	Exon 10 of 25	NP_001337149.1	A0A8I5KSL3
SMG7	NM_001394133.1		c.920A>G	p.Glu307Gly	missense	Exon 9 of 24	NP_001381062.1	A0A8I5KSL3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SMG7	ENST00000688051.1	MANE Select	c.833A>G	p.Glu278Gly	missense	Exon 8 of 23	ENSP00000510175.1	A0A8I5KYV3
SMG7	ENST00000507469.5	TSL:1	c.833A>G	p.Glu278Gly	missense	Exon 8 of 23	ENSP00000425133.1	Q92540-4
SMG7	ENST00000347615.6	TSL:1	c.833A>G	p.Glu278Gly	missense	Exon 8 of 22	ENSP00000340766.2	Q92540-1

Frequencies

GnomAD3 genomes

AF:

0.000250

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000868

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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

GnomAD2 exomes

AF:

0.0000560

AC:

AN:

249832

AF XY:

0.0000222

show subpopulations

Gnomad AFR exome

AF:

0.000865

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000233

AC:

AN:

1460018

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

726368

show subpopulations

African (AFR)

AF:

0.000959

AC:

AN:

33380

American (AMR)

AF:

0.00

AC:

AN:

44558

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26068

East Asian (EAS)

AF:

0.00

AC:

AN:

39592

South Asian (SAS)

AF:

0.00

AC:

AN:

86072

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1110900

Other (OTH)

AF:

0.0000332

AC:

AN:

60306

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000250

AC:

AN:

152288

Hom.:

Cov.:

AF XY:

0.000201

AC XY:

AN XY:

74458

show subpopulations

African (AFR)

AF:

0.000866

AC:

AN:

41584

American (AMR)

AF:

0.000131

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68002

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000443

Hom.:

Bravo

AF:

0.000314

ESP6500AA

AF:

0.00159

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000824

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.10

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.019

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.019

MetaRNN

Benign

0.070

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.4

PhyloP100

8.5

PrimateAI

Uncertain

0.65

PROVEAN

Uncertain

-2.5

REVEL

Benign

0.29

Sift

Benign

0.039

Sift4G

Benign

0.10

Polyphen

0.62

Vest4

0.60

MVP

0.46

MPC

1.1

ClinPred

0.17

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.36

gMVP

0.61

Mutation Taster

=27/73

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over