chr2-216432810-G-A

Position:

chr2-216432810-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_014140.4(SMARCAL1):c.1427G>A(p.Arg476Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000762 in 1,614,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

SMARCAL1
NM_014140.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 1.36

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1288234).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SMARCAL1	NM_014140.4 linkuse as main transcript	c.1427G>A	p.Arg476Gln	missense_variant	8/18	ENST00000357276.9	NP_054859.2
SMARCAL1	NM_001127207.2 linkuse as main transcript	c.1427G>A	p.Arg476Gln	missense_variant	8/18		NP_001120679.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SMARCAL1	ENST00000357276.9 linkuse as main transcript	c.1427G>A	p.Arg476Gln	missense_variant	8/18	2	NM_014140.4	ENSP00000349823	P1

Frequencies

GnomAD3 genomes

AF:

0.000230

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000796

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:

0.000478

GnomAD3 exomes

AF:

0.0000676

AC:

AN:

251442

Hom.:

AF XY:

0.0000515

AC XY:

AN XY:

135896

show subpopulations

Gnomad AFR exome

AF:

0.000738

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000602

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000578

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00108

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000387

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.000230

AC:

AN:

152188

Hom.:

Cov.:

AF XY:

0.000256

AC XY:

AN XY:

74348

show subpopulations

Gnomad4 AFR

AF:

0.000796

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:

0.000478

Alfa

AF:

0.000215

Hom.:

Bravo

AF:

0.000310

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000741

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Schimke immuno-osseous dysplasia

Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jul 06, 2022	This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 476 of the SMARCAL1 protein (p.Arg476Gln). This variant is present in population databases (rs142164846, gnomAD 0.1%). This missense change has been observed in individual(s) with Schimke immuno-osseous dysplasia (PMID: 17089404, 22998683). ClinVar contains an entry for this variant (Variation ID: 281764). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Oct 31, 2018	- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Jul 28, 2015

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Uncertain

0.040

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.41

T;T;T

Eigen

Benign

-0.29

Eigen_PC

Benign

-0.18

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.83

.;T;T

M_CAP

Benign

0.018

MetaRNN

Benign

0.13

T;T;T

MetaSVM

Uncertain

-0.11

MutationAssessor

Benign

1.4

L;L;.

MutationTaster

Benign

0.95

D;D

PrimateAI

Benign

0.33

PROVEAN

Benign

-2.2

N;N;N

REVEL

Uncertain

0.52

Sift

Benign

0.23

T;T;T

Sift4G

Benign

0.35

T;T;T

Polyphen

0.10

B;B;.

Vest4

0.77

MVP

0.92

MPC

0.35

ClinPred

0.055

GERP RS

1.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.13

gMVP

0.56

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