chr2-197596018-C-T

Variant summary

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

The NM_144629.3(RFTN2):​c.1206G>A​(p.Met402Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000354 in 1,612,132 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: 0.000038 ( 0 hom. )

Consequence

RFTN2
NM_144629.3 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.596
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=0.061545372).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RFTN2NM_144629.3 linkuse as main transcriptc.1206G>A p.Met402Ile missense_variant 8/9 ENST00000295049.9 NP_653230.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RFTN2ENST00000295049.9 linkuse as main transcriptc.1206G>A p.Met402Ile missense_variant 8/91 NM_144629.3 ENSP00000295049 P1
RFTN2ENST00000454447.1 linkuse as main transcriptc.252G>A p.Met84Ile missense_variant 3/53 ENSP00000387459
RFTN2ENST00000494346.1 linkuse as main transcriptn.378G>A non_coding_transcript_exon_variant 3/42

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152200
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
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
250970
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135670
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:
0.0000440
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000384
AC:
56
AN:
1459932
Hom.:
0
Cov.:
28
AF XY:
0.0000303
AC XY:
22
AN XY:
726422
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.0000459
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74354
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
Bravo
AF:
0.00000756
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000593

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 GeneticsNov 09, 2022The c.1206G>A (p.M402I) alteration is located in exon 8 (coding exon 8) of the RFTN2 gene. This alteration results from a G to A substitution at nucleotide position 1206, causing the methionine (M) at amino acid position 402 to be replaced by an isoleucine (I). 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
0.14
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
15
DANN
Benign
0.90
DEOGEN2
Benign
0.0080
T;T
Eigen
Benign
-0.82
Eigen_PC
Benign
-0.79
FATHMM_MKL
Benign
0.41
N
LIST_S2
Benign
0.71
T;T
M_CAP
Benign
0.0034
T
MetaRNN
Benign
0.062
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.4
M;.
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-0.37
N;N
REVEL
Benign
0.022
Sift
Benign
0.041
D;T
Sift4G
Benign
0.14
T;T
Polyphen
0.038
B;.
Vest4
0.27
MutPred
0.25
Loss of MoRF binding (P = 0.0849);.;
MVP
0.10
MPC
0.055
ClinPred
0.041
T
GERP RS
0.33
Varity_R
0.10
gMVP
0.13

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: rs750187644; hg19: chr2-198460742; API