Genetic Variant NM_020928.2:c.31G>A (chr5-61332303-G-A) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_020928.2(ZSWIM6):c.31G>A(p.Ala11Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000111 in 1,167,408 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000049 ( 0 hom. )

Consequence

ZSWIM6
NM_020928.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.70

Variant links:

Genes affected

ZSWIM6 (HGNC:29316): (zinc finger SWIM-type containing 6) The protein encoded by this gene contains a zinc finger SWI2/SNF2 and MuDR (SWIM) domain. Proteins with SWIM domains have been found in a diverse number of species and are predicted to interact with DNA or proteins. Mutations in this gene result in acromelic frontonasal dysostosis. [provided by RefSeq, Apr 2017]

ZSWIM6 links:

LOC105378994 (HGNC:):

LOC105378994 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.19718385).

BS2

High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZSWIM6	NM_020928.2 link	c.31G>A	p.Ala11Thr	missense_variant	Exon 1 of 14	ENST00000252744.6	NP_065979.1	Q9HCJ5
LOC105378994	XR_007058781.1 link	n.-87C>T		upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZSWIM6	ENST00000252744.6 link	c.31G>A	p.Ala11Thr	missense_variant	Exon 1 of 14	5	NM_020928.2	ENSP00000252744.5		Q9HCJ5

Frequencies

GnomAD3 genomes

AF:

0.0000532

AC:

AN:

150434

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000194

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000492

AC:

AN:

1016974

Hom.:

Cov.:

AF XY:

0.00000623

AC XY:

AN XY:

481370

show subpopulations

Gnomad4 AFR exome

AF:

0.000145

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:

0.00000114

Gnomad4 OTH exome

AF:

0.0000257

GnomAD4 genome

AF:

0.0000532

AC:

AN:

150434

Hom.:

Cov.:

AF XY:

0.0000681

AC XY:

AN XY:

73454

show subpopulations

Gnomad4 AFR

AF:

0.000194

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000907

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Acromelic frontonasal dysostosis

Uncertain:1

Oct 13, 2022

Laboratorio de Genetica e Diagnostico Molecular, Hospital Israelita Albert Einstein

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

ACMG classification criteria: PM2 moderated, BP4 supporting -

not provided

Uncertain:1

Mar 20, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces alanine with threonine at codon 11 of the ZSWIM6 protein (p.Ala11Thr). The alanine residue is weakly conserved and there is a small physicochemical difference between alanine and threonine. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database. This variant has not been reported in the literature in individuals with ZSWIM6-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.40

CADD

Uncertain

DANN

Benign

0.96

DEOGEN2

Benign

0.0023

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.46

FATHMM_MKL

Benign

0.025

LIST_S2

Benign

0.54

M_CAP

Pathogenic

0.49

MetaRNN

Benign

0.20

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

PrimateAI

Pathogenic

0.93

PROVEAN

Benign

-0.61

REVEL

Benign

0.18

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.032

Polyphen

0.66

Vest4

0.19

MutPred

0.32

Gain of phosphorylation at A11 (P = 0.0051);

MVP

0.067

MPC

0.48

ClinPred

0.54

GERP RS

0.71

Varity_R

0.15

gMVP

0.51

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