15-76931855-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002902.3(RCN2):​c.14C>T​(p.Pro5Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000236 in 1,268,710 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

RCN2
NM_002902.3 missense

Scores

2
1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0790
Variant links:
Genes affected
RCN2 (HGNC:9935): (reticulocalbin 2) The protein encoded by this gene 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. This gene maps to the same region as type 4 Bardet-Biedl syndrome, suggesting a possible causative role for this gene in the disorder. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.2206645).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
RCN2NM_002902.3 linkuse as main transcriptc.14C>T p.Pro5Leu missense_variant 1/7 ENST00000394885.8
RCN2NM_001271837.2 linkuse as main transcriptc.14C>T p.Pro5Leu missense_variant 1/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
RCN2ENST00000394885.8 linkuse as main transcriptc.14C>T p.Pro5Leu missense_variant 1/71 NM_002902.3 P1Q14257-1
RCN2ENST00000320963.9 linkuse as main transcriptc.14C>T p.Pro5Leu missense_variant 1/85 Q14257-2
RCN2ENST00000394883.3 linkuse as main transcriptc.14C>T p.Pro5Leu missense_variant 1/55
RCN2ENST00000557805.1 linkuse as main transcript upstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00000660
AC:
1
AN:
151546
Hom.:
0
Cov.:
32
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
GnomAD4 exome
AF:
0.0000260
AC:
29
AN:
1117164
Hom.:
0
Cov.:
30
AF XY:
0.0000204
AC XY:
11
AN XY:
540470
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:
0.0000276
Gnomad4 OTH exome
AF:
0.0000456
GnomAD4 genome
AF:
0.00000660
AC:
1
AN:
151546
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74028
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:
0.0000936
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 24, 2024The c.14C>T (p.P5L) alteration is located in exon 1 (coding exon 1) of the RCN2 gene. This alteration results from a C to T substitution at nucleotide position 14, causing the proline (P) at amino acid position 5 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
0.17
BayesDel_addAF
Benign
-0.099
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
13
DANN
Benign
0.97
DEOGEN2
Benign
0.022
T;.;T
Eigen
Benign
-0.94
Eigen_PC
Benign
-0.82
FATHMM_MKL
Benign
0.62
D
LIST_S2
Benign
0.67
T;T;T
M_CAP
Pathogenic
0.86
D
MetaRNN
Benign
0.22
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.2
L;L;.
MutationTaster
Benign
0.96
D;D;N
PrimateAI
Pathogenic
0.85
D
PROVEAN
Benign
0.080
N;N;N
REVEL
Benign
0.10
Sift
Benign
0.034
D;D;D
Sift4G
Uncertain
0.013
D;D;D
Polyphen
0.0
B;.;B
Vest4
0.25
MutPred
0.22
Gain of MoRF binding (P = 0.036);Gain of MoRF binding (P = 0.036);Gain of MoRF binding (P = 0.036);
MVP
0.60
MPC
0.41
ClinPred
0.54
D
GERP RS
1.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.041
gMVP
0.37

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.

Other links and lift over

dbSNP: rs963651370; hg19: chr15-77224196; API