Genetic Variant VMAC:p.Ala53Thr (chr19-5905047-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001017921.4(VMAC):c.157G>A(p.Ala53Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000181 in 1,379,022 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A53S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000082 ( 1 hom. )

Consequence

VMAC
NM_001017921.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.70

Publications

0 publications found

Variant links:

Genes affected

VMAC (HGNC:33803): (vimentin type intermediate filament associated coiled-coil protein) Predicted to be located in cytoplasm. Predicted to be active in type III intermediate filament. [provided by Alliance of Genome Resources, Apr 2022]

VMAC links:

ENSG00000267314 (HGNC:):

ENSG00000267314 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.029841125).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VMAC	NM_001017921.4 link	c.157G>A	p.Ala53Thr	missense_variant	Exon 1 of 2	ENST00000339485.4	NP_001017921.1	Q2NL98

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VMAC	ENST00000339485.4 link	c.157G>A	p.Ala53Thr	missense_variant	Exon 1 of 2	1	NM_001017921.4	ENSP00000343348.2		Q2NL98
ENSG00000267314	ENST00000588891.1 link	n.157G>A		non_coding_transcript_exon_variant	Exon 1 of 4	4		ENSP00000468419.1		K7ERU9

Frequencies

GnomAD3 genomes

AF:

0.0000985

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000981

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

GnomAD2 exomes

AF:

0.000327

AC:

AN:

9166

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00281

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000815

AC:

AN:

1226812

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

598138

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

24162

American (AMR)

AF:

0.000937

AC:

AN:

10676

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

17482

East Asian (EAS)

AF:

0.00

AC:

AN:

27536

South Asian (SAS)

AF:

0.00

AC:

AN:

54956

European-Finnish (FIN)

AF:

0.00

AC:

AN:

29736

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3938

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1007766

Other (OTH)

AF:

0.00

AC:

AN:

50560

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.512

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74360

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41452

American (AMR)

AF:

0.000981

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.000102

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 03, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.157G>A (p.A53T) alteration is located in exon 1 (coding exon 1) of the VMAC gene. This alteration results from a G to A substitution at nucleotide position 157, causing the alanine (A) at amino acid position 53 to be replaced by a threonine (T). 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

0.086

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.39

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.014

Eigen

Benign

-0.15

Eigen_PC

Benign

-0.13

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.64

M_CAP

Benign

0.028

MetaRNN

Benign

0.030

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.2

PhyloP100

4.7

PrimateAI

Uncertain

0.68

PROVEAN

Benign

-1.4

REVEL

Benign

0.074

Sift

Benign

0.28

Sift4G

Uncertain

0.018

Polyphen

0.58

Vest4

0.33

MutPred

0.15

Gain of phosphorylation at A53 (P = 0.0498);

MVP

0.17

MPC

1.3

ClinPred

0.15

GERP RS

3.3

PromoterAI

0.046

Neutral

(source)

Varity_R

0.079

gMVP

0.098

Mutation Taster

=89/11

polymorphism

(source)

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

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19-5905047-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over