Genetic Variant ACTR3C:p.Lys188Gln (chr7-150284755-T-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001164458.2(ACTR3C):c.562A>C(p.Lys188Gln) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000677 in 1,611,160 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000058 ( 0 hom. )

Consequence

ACTR3C
NM_001164458.2 missense, splice_region

Scores

Splicing: ADA: 0.001316

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.29

Variant links:

Genes affected

ACTR3C (HGNC:37282): (actin related protein 3C) Predicted to enable ATP binding activity. Predicted to contribute to actin filament binding activity. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

ACTR3C links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.040757895).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ACTR3C	NM_001164458.2 link	c.562A>C	p.Lys188Gln	missense_variant, splice_region_variant	Exon 6 of 8	ENST00000683684.1	NP_001157930.1	Q9C0K3-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ACTR3C	ENST00000683684.1 link	c.562A>C	p.Lys188Gln	missense_variant, splice_region_variant	Exon 6 of 8		NM_001164458.2	ENSP00000507618.1	Q9C0K3-1
ACTR3C	ENST00000252071.8 link	c.562A>C	p.Lys188Gln	missense_variant, splice_region_variant	Exon 6 of 8	1		ENSP00000252071.4	Q9C0K3-1
ACTR3C	ENST00000478393.5 link	c.556A>C	p.Lys186Gln	missense_variant, splice_region_variant	Exon 5 of 6	1		ENSP00000417426.1	H7C4J1
ACTR3C	ENST00000539352.5 link	c.562A>C	p.Lys188Gln	missense_variant	Exon 5 of 5	5		ENSP00000440990.2	A0A0A0MTI9

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152078

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00230

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.000125

AC:

AN:

248234

Hom.:

AF XY:

0.000119

AC XY:

AN XY:

134086

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000177

Gnomad ASJ exome

AF:

0.00200

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000444

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000576

AC:

AN:

1458964

Hom.:

Cov.:

AF XY:

0.0000648

AC XY:

AN XY:

725650

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000249

Gnomad4 ASJ exome

AF:

0.00188

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000810

Gnomad4 OTH exome

AF:

0.000249

GnomAD4 genome

AF:

0.000164

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.000228

AC XY:

AN XY:

74428

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000588

Gnomad4 ASJ

AF:

0.00230

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.000477

Hom.:

Bravo

AF:

0.000283

ExAC

AF:

0.0000906

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 28, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.562A>C (p.K188Q) alteration is located in exon 6 (coding exon 5) of the ACTR3C gene. This alteration results from a A to C substitution at nucleotide position 562, causing the lysine (K) at amino acid position 188 to be replaced by a glutamine (Q). 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

0.13

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.45

CADD

Uncertain

DANN

Benign

0.95

DEOGEN2

Benign

0.038

.;T;.

Eigen

Benign

-0.18

Eigen_PC

Benign

-0.12

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.28

T;T;T

M_CAP

Benign

0.0042

MetaRNN

Benign

0.038

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

.;L;.

PROVEAN

Benign

-2.3

N;N;N

REVEL

Benign

0.13

Sift

Benign

0.26

T;T;T

Sift4G

Uncertain

0.049

D;T;T

Polyphen

0.074

.;B;.

Vest4

0.72, 0.59

MVP

0.15

MPC

0.37

ClinPred

0.10

GERP RS

2.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.27

gMVP

0.44

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0013

dbscSNV1_RF

Benign

0.0080

SpliceAI score (max)

0.050

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