Genetic Variant ACTR3C:p.Pro87Leu (chr7-150289487-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001164458.2(ACTR3C):c.260C>T(p.Pro87Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000049 in 1,590,434 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

ACTR3C
NM_001164458.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.06

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:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ACTR3C	NM_001164458.2 link	c.260C>T	p.Pro87Leu	missense_variant	Exon 4 of 8	ENST00000683684.1	NP_001157930.1	Q9C0K3-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ACTR3C	ENST00000683684.1 link	c.260C>T	p.Pro87Leu	missense_variant	Exon 4 of 8		NM_001164458.2	ENSP00000507618.1		Q9C0K3-1

Frequencies

GnomAD3 genomes

AF:

0.00000663

AC:

AN:

150866

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000987

AC:

AN:

202708

Hom.:

AF XY:

0.00000921

AC XY:

AN XY:

108574

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000219

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000535

AC:

AN:

1439568

Hom.:

Cov.:

AF XY:

0.0000462

AC XY:

AN XY:

713598

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000233

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:

0.0000663

Gnomad4 OTH exome

AF:

0.0000504

GnomAD4 genome

AF:

0.00000663

AC:

AN:

150866

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73610

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000868

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.260C>T (p.P87L) alteration is located in exon 4 (coding exon 3) of the ACTR3C gene. This alteration results from a C to T substitution at nucleotide position 260, causing the proline (P) at amino acid position 87 to be replaced by a leucine (L). 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

0.27

BayesDel_addAF

Benign

-0.073

BayesDel_noAF

Benign

-0.31

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.52

.;D;.;.

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.90

D;D;D;D

M_CAP

Benign

0.0064

MetaRNN

Uncertain

0.59

D;D;D;D

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.5

.;M;.;.

PROVEAN

Pathogenic

-8.2

D;D;D;D

REVEL

Uncertain

0.33

Sift

Uncertain

0.0020

D;D;D;D

Sift4G

Uncertain

0.0080

D;T;T;.

Polyphen

1.0

.;D;.;.

Vest4

0.74, 0.77

MutPred

0.39

.;Loss of disorder (P = 0.0236);Loss of disorder (P = 0.0236);.;

MVP

0.53

MPC

3.1

ClinPred

0.99

GERP RS

2.2

Varity_R

0.79

gMVP

0.61

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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