Genetic Variant RCN1:p.Leu75Val (chr11-32091419-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_002901.4(RCN1):c.223C>G(p.Leu75Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000168 in 1,548,390 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 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

RCN1
NM_002901.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.82

Publications

0 publications found

Variant links:

Genes affected

RCN1 (HGNC:9934): (reticulocalbin 1) Reticulocalbin 1 is a calcium-binding protein located in the lumen of the ER. The protein contains six conserved regions with similarity to a high affinity Ca(+2)-binding motif, the EF-hand. High conservation of amino acid residues outside of these motifs, in comparison to mouse reticulocalbin, is consistent with a possible biochemical function besides that of calcium binding. In human endothelial and prostate cancer cell lines this protein localizes to the plasma membrane.[provided by RefSeq, Jan 2009]

RCN1 links:

ENSG00000285283 (HGNC:):

ENSG00000285283 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 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
RCN1	NM_002901.4 link	c.223C>G	p.Leu75Val	missense_variant	Exon 1 of 6	ENST00000054950.4	NP_002892.1	Q15293-1V9HW95

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RCN1	ENST00000054950.4 link	c.223C>G	p.Leu75Val	missense_variant	Exon 1 of 6	1	NM_002901.4	ENSP00000054950.4	Q15293-1
ENSG00000285283	ENST00000532942.5 link	c.102-5725C>G		intron_variant	Intron 1 of 5	2		ENSP00000436422.1
ENSG00000285283	ENST00000530348.5 link	c.-244-5725C>G		intron_variant	Intron 1 of 3	4		ENSP00000436482.1	E9PP27
RCN1	ENST00000532721.1 link	c.-626C>G		upstream_gene_variant		3		ENSP00000433249.1	E9PLM2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152166

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

154422

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000165

AC:

AN:

1396224

Hom.:

Cov.:

AF XY:

0.0000102

AC XY:

AN XY:

688676

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31266

American (AMR)

AF:

0.00

AC:

AN:

35532

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25104

East Asian (EAS)

AF:

0.00

AC:

AN:

35564

South Asian (SAS)

AF:

0.00

AC:

AN:

78738

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5630

European-Non Finnish (NFE)

AF:

0.0000195

AC:

AN:

1077888

Other (OTH)

AF:

0.0000345

AC:

AN:

57898

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74320

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41456

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

312

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.408

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000151

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000124

AC:

ExAC

AF:

0.0000115

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 12, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.223C>G (p.L75V) alteration is located in exon 1 (coding exon 1) of the RCN1 gene. This alteration results from a C to G substitution at nucleotide position 223, causing the leucine (L) at amino acid position 75 to be replaced by a valine (V). 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

0.95

BayesDel_addAF

Benign

-0.084

BayesDel_noAF

Benign

-0.34

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.34

Eigen

Uncertain

0.29

Eigen_PC

Uncertain

0.23

FATHMM_MKL

Uncertain

0.94

LIST_S2

Pathogenic

1.0

M_CAP

Pathogenic

0.34

MetaRNN

Benign

0.40

MetaSVM

Benign

-1.1

MutationAssessor

Pathogenic

2.9

PhyloP100

5.8

PrimateAI

Uncertain

0.79

PROVEAN

Uncertain

-2.7

REVEL

Benign

0.19

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.017

Polyphen

0.93

Vest4

0.48

MVP

0.29

MPC

1.3

ClinPred

0.98

GERP RS

3.1

PromoterAI

0.077

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.7

Varity_R

0.78

gMVP

0.66

Mutation Taster

=57/43

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.22

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.22

Position offset: -1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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11-32091419-C-G

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