chr2-216414831-G-C

Variant summary

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

The NM_014140.4(SMARCAL1):ā€‹c.127G>Cā€‹(p.Ala43Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,894 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A43T) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

SMARCAL1
NM_014140.4 missense

Scores

1
2
16

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.407
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 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=0.07973984).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SMARCAL1NM_014140.4 linkuse as main transcriptc.127G>C p.Ala43Pro missense_variant 3/18 ENST00000357276.9
SMARCAL1NM_001127207.2 linkuse as main transcriptc.127G>C p.Ala43Pro missense_variant 3/18

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMARCAL1ENST00000357276.9 linkuse as main transcriptc.127G>C p.Ala43Pro missense_variant 3/182 NM_014140.4 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251470
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461894
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.077
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
4.9
DANN
Uncertain
0.99
DEOGEN2
Benign
0.012
T;T;.;T;.
Eigen
Benign
-0.69
Eigen_PC
Benign
-0.80
FATHMM_MKL
Benign
0.075
N
LIST_S2
Benign
0.52
T;.;T;T;T
M_CAP
Benign
0.0032
T
MetaRNN
Benign
0.080
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.5
.;M;.;M;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.30
T
PROVEAN
Benign
0.44
N;N;N;N;N
REVEL
Benign
0.064
Sift
Benign
0.16
T;T;T;T;T
Sift4G
Pathogenic
0.0
D;T;D;T;D
Polyphen
0.80
.;P;.;P;.
Vest4
0.082, 0.085
MutPred
0.076
Loss of catalytic residue at A43 (P = 0.0537);Loss of catalytic residue at A43 (P = 0.0537);Loss of catalytic residue at A43 (P = 0.0537);Loss of catalytic residue at A43 (P = 0.0537);Loss of catalytic residue at A43 (P = 0.0537);
MVP
0.31
MPC
0.29
ClinPred
0.12
T
GERP RS
0.32
Varity_R
0.060
gMVP
0.23

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: rs2066524; hg19: chr2-217279554; API