chr2-197572163-G-A

Variant summary

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

The NM_144629.3(RFTN2):​c.1351C>T​(p.Arg451Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000458 in 1,614,104 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

RFTN2
NM_144629.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.67
Variant links:
Genes affected
RFTN2 (HGNC:26402): (raftlin family member 2) Predicted to act upstream of or within dsRNA transport and response to exogenous dsRNA. Predicted to be located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

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=0.039304644).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RFTN2NM_144629.3 linkuse as main transcriptc.1351C>T p.Arg451Cys missense_variant 9/9 ENST00000295049.9 NP_653230.2
LOC124907952XR_007087918.1 linkuse as main transcriptn.1288G>A non_coding_transcript_exon_variant 2/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RFTN2ENST00000295049.9 linkuse as main transcriptc.1351C>T p.Arg451Cys missense_variant 9/91 NM_144629.3 ENSP00000295049 P1
RFTN2ENST00000454447.1 linkuse as main transcriptc.427C>T p.Arg143Cys missense_variant 5/53 ENSP00000387459
RFTN2ENST00000494346.1 linkuse as main transcriptn.523C>T non_coding_transcript_exon_variant 4/42

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152212
Hom.:
0
Cov.:
33
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:
0.000282
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000119
AC:
30
AN:
251348
Hom.:
0
AF XY:
0.000133
AC XY:
18
AN XY:
135842
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.000508
Gnomad NFE exome
AF:
0.000141
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000438
AC:
64
AN:
1461892
Hom.:
0
Cov.:
31
AF XY:
0.0000454
AC XY:
33
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.000449
Gnomad4 NFE exome
AF:
0.0000252
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152212
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74360
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:
0.000282
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000162
Hom.:
0
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000165
AC:
20
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000237

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 GeneticsMar 15, 2024The c.1351C>T (p.R451C) alteration is located in exon 9 (coding exon 9) of the RFTN2 gene. This alteration results from a C to T substitution at nucleotide position 1351, causing the arginine (R) at amino acid position 451 to be replaced by a cysteine (C). 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
0.078
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
17
DANN
Benign
0.97
DEOGEN2
Benign
0.012
T;T
Eigen
Benign
-0.60
Eigen_PC
Benign
-0.69
FATHMM_MKL
Benign
0.24
N
LIST_S2
Benign
0.31
T;T
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.039
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.1
L;.
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.19
T
PROVEAN
Benign
-1.1
N;N
REVEL
Benign
0.083
Sift
Benign
0.14
T;T
Sift4G
Benign
0.098
T;T
Polyphen
0.85
P;.
Vest4
0.093
MVP
0.11
MPC
0.20
ClinPred
0.095
T
GERP RS
-0.16
Varity_R
0.071
gMVP
0.058

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: rs138418206; hg19: chr2-198436887; COSMIC: COSV54393348; API