chr2-216464684-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_014140.4(SMARCAL1):​c.2141+17T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00507 in 1,559,052 control chromosomes in the GnomAD database, including 232 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.023 ( 135 hom., cov: 32)
Exomes 𝑓: 0.0031 ( 97 hom. )

Consequence

SMARCAL1
NM_014140.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -0.578
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 2-216464684-T-C is Benign according to our data. Variant chr2-216464684-T-C is described in ClinVar as [Benign]. Clinvar id is 260342.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-216464684-T-C is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0759 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SMARCAL1NM_014140.4 linkuse as main transcriptc.2141+17T>C intron_variant ENST00000357276.9 NP_054859.2 Q9NZC9
SMARCAL1NM_001127207.2 linkuse as main transcriptc.2141+17T>C intron_variant NP_001120679.1 Q9NZC9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SMARCAL1ENST00000357276.9 linkuse as main transcriptc.2141+17T>C intron_variant 2 NM_014140.4 ENSP00000349823.4 Q9NZC9

Frequencies

GnomAD3 genomes
AF:
0.0230
AC:
3481
AN:
151390
Hom.:
135
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0783
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0109
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000285
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.000971
Gnomad OTH
AF:
0.0168
GnomAD3 exomes
AF:
0.00645
AC:
1610
AN:
249482
Hom.:
50
AF XY:
0.00495
AC XY:
669
AN XY:
135034
show subpopulations
Gnomad AFR exome
AF:
0.0811
Gnomad AMR exome
AF:
0.00422
Gnomad ASJ exome
AF:
0.0000994
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000229
Gnomad FIN exome
AF:
0.000250
Gnomad NFE exome
AF:
0.000986
Gnomad OTH exome
AF:
0.00360
GnomAD4 exome
AF:
0.00313
AC:
4412
AN:
1407544
Hom.:
97
Cov.:
25
AF XY:
0.00275
AC XY:
1936
AN XY:
703544
show subpopulations
Gnomad4 AFR exome
AF:
0.0802
Gnomad4 AMR exome
AF:
0.00464
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000176
Gnomad4 FIN exome
AF:
0.000155
Gnomad4 NFE exome
AF:
0.00120
Gnomad4 OTH exome
AF:
0.00528
GnomAD4 genome
AF:
0.0230
AC:
3486
AN:
151508
Hom.:
135
Cov.:
32
AF XY:
0.0218
AC XY:
1615
AN XY:
74014
show subpopulations
Gnomad4 AFR
AF:
0.0782
Gnomad4 AMR
AF:
0.0109
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000285
Gnomad4 NFE
AF:
0.000971
Gnomad4 OTH
AF:
0.0166
Alfa
AF:
0.00544
Hom.:
12
Bravo
AF:
0.0259

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 02, 2020- -
Schimke immuno-osseous dysplasia Benign:2
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesNov 29, 2023- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.084
DANN
Benign
0.42

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.

Other links and lift over

dbSNP: rs2066516; hg19: chr2-217329407; API