Genetic Variant RCSD1:p.Val20Ala (chr1-167683952-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_052862.4(RCSD1):c.59T>C(p.Val20Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,852 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

RCSD1
NM_052862.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.68

Variant links:

Genes affected

RCSD1 (HGNC:28310): (RCSD domain containing 1) Enables actin filament binding activity. Involved in cellular hyperosmotic response. Predicted to be located in actin filament. [provided by Alliance of Genome Resources, Apr 2022]

RCSD1 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
RCSD1	NM_052862.4 link	c.59T>C	p.Val20Ala	missense_variant	Exon 2 of 7	ENST00000367854.8	NP_443094.3	Q6JBY9-1
RCSD1	NM_001322923.2 link	c.59T>C	p.Val20Ala	missense_variant	Exon 2 of 6		NP_001309852.1	B7ZKW8
RCSD1	NM_001322924.2 link	c.59T>C	p.Val20Ala	missense_variant	Exon 2 of 5		NP_001309853.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RCSD1	ENST00000367854.8 link	c.59T>C	p.Val20Ala	missense_variant	Exon 2 of 7	1	NM_052862.4	ENSP00000356828.3	Q6JBY9-1
RCSD1	ENST00000537350.5 link	c.59T>C	p.Val20Ala	missense_variant	Exon 2 of 6	1		ENSP00000439409.1	B7ZKW8
RCSD1	ENST00000361496.3 link	c.59T>C	p.Val20Ala	missense_variant	Exon 2 of 5	3		ENSP00000355291.3	F6T4W9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251108

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135754

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:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461852

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727230

show subpopulations

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:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 14, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.59T>C (p.V20A) alteration is located in exon 2 (coding exon 2) of the RCSD1 gene. This alteration results from a T to C substitution at nucleotide position 59, causing the valine (V) at amino acid position 20 to be replaced by an alanine (A). 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

Pathogenic

0.92

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Uncertain

-0.020

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.26

.;T;.

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Benign

0.71

LIST_S2

Uncertain

0.88

D;T;D

M_CAP

Benign

0.042

MetaRNN

Uncertain

0.44

T;T;T

MetaSVM

Uncertain

-0.17

MutationAssessor

Uncertain

2.3

.;M;.

PrimateAI

Uncertain

0.67

PROVEAN

Uncertain

-2.6

D;D;D

REVEL

Benign

0.25

Sift

Pathogenic

0.0

D;D;D

Sift4G

Benign

0.17

T;T;D

Polyphen

1.0

D;D;.

Vest4

0.64

MutPred

0.33

Gain of glycosylation at P18 (P = 0.0763);Gain of glycosylation at P18 (P = 0.0763);Gain of glycosylation at P18 (P = 0.0763);

MVP

0.88

MPC

0.25

ClinPred

0.97

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.42

gMVP

0.41

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