2-216420396-C-T

Variant names:

Variant summary

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

The NM_014140.4(SMARCAL1):c.960C>T(p.Ala320Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00456 in 1,614,142 control chromosomes in the GnomAD database, including 298 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0081 ( 52 hom., cov: 32)

Exomes 𝑓: 0.0042 ( 246 hom. )

Consequence

SMARCAL1
NM_014140.4 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 0.173

Variant links:

Genes affected

SMARCAL1 (HGNC:11102): (SWI/SNF related, matrix associated, actin dependent regulator of chromatin, subfamily a like 1) The protein encoded by this gene is a member of the SWI/SNF family of proteins. Members of this family have helicase and ATPase activities and are thought to regulate transcription of certain genes by altering the chromatin structure around those genes. The encoded protein shows sequence similarity to the E. coli RNA polymerase-binding protein HepA. Mutations in this gene are a cause of Schimke immunoosseous dysplasia (SIOD), an autosomal recessive disorder with the diagnostic features of spondyloepiphyseal dysplasia, renal dysfunction, and T-cell immunodeficiency. [provided by RefSeq, Jul 2008]

SMARCAL1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.67).

BP6

Variant 2-216420396-C-T is Benign according to our data. Variant chr2-216420396-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 197798.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.173 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.0612 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SMARCAL1	NM_014140.4 link	c.960C>T	p.Ala320Ala	synonymous_variant	Exon 5 of 18	ENST00000357276.9	NP_054859.2	Q9NZC9
SMARCAL1	NM_001127207.2 link	c.960C>T	p.Ala320Ala	synonymous_variant	Exon 5 of 18		NP_001120679.1	Q9NZC9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SMARCAL1	ENST00000357276.9 link	c.960C>T	p.Ala320Ala	synonymous_variant	Exon 5 of 18	2	NM_014140.4	ENSP00000349823.4		Q9NZC9

Frequencies

GnomAD3 genomes

AF:

0.00807

AC:

1228

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000941

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0646

Gnomad ASJ

AF:

0.00144

Gnomad EAS

AF:

0.0242

Gnomad SAS

AF:

0.00290

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000500

Gnomad OTH

AF:

0.0105

GnomAD3 exomes

AF:

0.0168

AC:

4223

AN:

251414

Hom.:

204

AF XY:

0.0132

AC XY:

1798

AN XY:

135884

show subpopulations

Gnomad AFR exome

AF:

0.000431

Gnomad AMR exome

AF:

0.102

Gnomad ASJ exome

AF:

0.000893

Gnomad EAS exome

AF:

0.0233

Gnomad SAS exome

AF:

0.00376

Gnomad FIN exome

AF:

0.0000924

Gnomad NFE exome

AF:

0.000492

Gnomad OTH exome

AF:

0.0111

GnomAD4 exome

AF:

0.00419

AC:

6130

AN:

1461864

Hom.:

246

Cov.:

AF XY:

0.00377

AC XY:

2739

AN XY:

727238

show subpopulations

Gnomad4 AFR exome

AF:

0.000657

Gnomad4 AMR exome

AF:

0.0962

Gnomad4 ASJ exome

AF:

0.00134

Gnomad4 EAS exome

AF:

0.0239

Gnomad4 SAS exome

AF:

0.00288

Gnomad4 FIN exome

AF:

0.000168

Gnomad4 NFE exome

AF:

0.000306

Gnomad4 OTH exome

AF:

0.00339

GnomAD4 genome

AF:

0.00807

AC:

1229

AN:

152278

Hom.:

Cov.:

AF XY:

0.00935

AC XY:

696

AN XY:

74456

show subpopulations

Gnomad4 AFR

AF:

0.000939

Gnomad4 AMR

AF:

0.0645

Gnomad4 ASJ

AF:

0.00144

Gnomad4 EAS

AF:

0.0247

Gnomad4 SAS

AF:

0.00269

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000500

Gnomad4 OTH

AF:

0.0104

Alfa

AF:

0.000852

Hom.:

Bravo

AF:

0.0127

Asia WGS

AF:

0.0110

AC:

AN:

3478

EpiCase

AF:

0.000491

EpiControl

AF:

0.000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Schimke immuno-osseous dysplasia

Benign:4

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Sep 16, 2020

Natera, Inc.

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 19, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Benign:2

Jan 28, 2015

Eurofins Ntd Llc (ga)

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:2

Dec 23, 2019

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Kidney disorder

Benign:1

Mar 01, 2018

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.67

CADD

Benign

7.6

DANN

Benign

0.45

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over