rs2304859

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_015295.3(SMCHD1):ā€‹c.4137A>Gā€‹(p.Ala1379Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.306 in 1,603,420 control chromosomes in the GnomAD database, including 78,200 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.30 ( 6924 hom., cov: 31)
Exomes š‘“: 0.31 ( 71276 hom. )

Consequence

SMCHD1
NM_015295.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.324
Variant links:
Genes affected
SMCHD1 (HGNC:29090): (structural maintenance of chromosomes flexible hinge domain containing 1) This gene encodes a protein which contains a hinge region domain found in members of the SMC (structural maintenance of chromosomes) protein family. [provided by RefSeq, Dec 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).
BP6
Variant 18-2750479-A-G is Benign according to our data. Variant chr18-2750479-A-G is described in ClinVar as [Benign]. Clinvar id is 260648.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr18-2750479-A-G is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.324 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.482 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SMCHD1NM_015295.3 linkuse as main transcriptc.4137A>G p.Ala1379Ala synonymous_variant 32/48 ENST00000320876.11 NP_056110.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SMCHD1ENST00000320876.11 linkuse as main transcriptc.4137A>G p.Ala1379Ala synonymous_variant 32/485 NM_015295.3 ENSP00000326603.7 A6NHR9-1

Frequencies

GnomAD3 genomes
AF:
0.297
AC:
45156
AN:
151810
Hom.:
6908
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.261
Gnomad AMI
AF:
0.459
Gnomad AMR
AF:
0.359
Gnomad ASJ
AF:
0.317
Gnomad EAS
AF:
0.498
Gnomad SAS
AF:
0.448
Gnomad FIN
AF:
0.266
Gnomad MID
AF:
0.253
Gnomad NFE
AF:
0.282
Gnomad OTH
AF:
0.303
GnomAD3 exomes
AF:
0.345
AC:
82065
AN:
237782
Hom.:
15227
AF XY:
0.343
AC XY:
44174
AN XY:
128892
show subpopulations
Gnomad AFR exome
AF:
0.268
Gnomad AMR exome
AF:
0.476
Gnomad ASJ exome
AF:
0.327
Gnomad EAS exome
AF:
0.505
Gnomad SAS exome
AF:
0.448
Gnomad FIN exome
AF:
0.265
Gnomad NFE exome
AF:
0.281
Gnomad OTH exome
AF:
0.317
GnomAD4 exome
AF:
0.306
AC:
444643
AN:
1451492
Hom.:
71276
Cov.:
33
AF XY:
0.309
AC XY:
223004
AN XY:
721618
show subpopulations
Gnomad4 AFR exome
AF:
0.258
Gnomad4 AMR exome
AF:
0.461
Gnomad4 ASJ exome
AF:
0.325
Gnomad4 EAS exome
AF:
0.467
Gnomad4 SAS exome
AF:
0.443
Gnomad4 FIN exome
AF:
0.264
Gnomad4 NFE exome
AF:
0.287
Gnomad4 OTH exome
AF:
0.319
GnomAD4 genome
AF:
0.298
AC:
45204
AN:
151928
Hom.:
6924
Cov.:
31
AF XY:
0.300
AC XY:
22262
AN XY:
74258
show subpopulations
Gnomad4 AFR
AF:
0.261
Gnomad4 AMR
AF:
0.360
Gnomad4 ASJ
AF:
0.317
Gnomad4 EAS
AF:
0.498
Gnomad4 SAS
AF:
0.447
Gnomad4 FIN
AF:
0.266
Gnomad4 NFE
AF:
0.282
Gnomad4 OTH
AF:
0.306
Alfa
AF:
0.292
Hom.:
8661
Bravo
AF:
0.307
Asia WGS
AF:
0.491
AC:
1709
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitterclinical testingGeneDxMar 24, 2021- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsNov 02, 2018- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Facioscapulohumeral muscular dystrophy 2 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Arrhinia with choanal atresia and microphthalmia syndrome Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 15, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
CADD
Benign
4.5
DANN
Benign
0.55
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs2304859; hg19: chr18-2750477; COSMIC: COSV55253357; COSMIC: COSV55253357; API