1-185175079-G-A

Position:

• chr1-185175079-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_017673.7(SWT1):​c.932G>A​(p.Ser311Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000704 in 1,421,162 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: SWT1 NM_017673.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.455

Genes affected

SWT1 (HGNC:16785): (SWT1 RNA endoribonuclease homolog) Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.04508522).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SWT1	NM_017673.7	c.932G>A	p.Ser311Asn	missense_variant	5/19	ENST00000367500.9	NP_060143.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SWT1	ENST00000367500.9	c.932G>A	p.Ser311Asn	missense_variant	5/19	1	NM_017673.7	ENSP00000356470	P1
SWT1	ENST00000367501.7	c.932G>A	p.Ser311Asn	missense_variant	5/19	2		ENSP00000356471	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.04e-7 AC: 1 AN: 1421162 Hom.: 0 Cov.: 33 AF XY: 0.00000142 AC XY: 1 AN XY: 703032

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.14e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 26, 2022

The c.932G>A (p.S311N) alteration is located in exon 5 (coding exon 4) of the SWT1 gene. This alteration results from a G to A substitution at nucleotide position 932, causing the serine (S) at amino acid position 311 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.062
BayesDel_addAF	Benign	-0.41	T
BayesDel_noAF	Benign	-0.83
CADD	Benign	2.2
DANN	Benign	0.94
DEOGEN2	Benign	0.0064	T;T
Eigen	Benign	-0.86
Eigen_PC	Benign	-0.90
FATHMM_MKL	Benign	0.035	N
LIST_S2	Benign	0.54	.;T
M_CAP	Benign	0.0052	T
MetaRNN	Benign	0.045	T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.5	L;L
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.31	T
PROVEAN	Benign	-0.46	N;N
REVEL	Benign	0.032
Sift	Benign	0.15	T;T
Sift4G	Benign	0.34	T;T
Polyphen		0.0030	B;B
Vest4		0.065
MutPred		0.12		Gain of relative solvent accessibility (P = 0.0166);Gain of relative solvent accessibility (P = 0.0166);
MVP		0.12
MPC		0.13
ClinPred		0.033	T
GERP RS		0.21
Varity_R		0.044
gMVP		0.11

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-185144211;