9-3225133-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4BS1_Supporting

The NM_001282116.2(RFX3):ā€‹c.2159T>Gā€‹(p.Leu720Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,634 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 (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

RFX3
NM_001282116.2 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.64
Variant links:
Genes affected
RFX3 (HGNC:9984): (regulatory factor X3) This gene is a member of the regulatory factor X gene family, which encodes transcription factors that contain a highly-conserved winged helix DNA binding domain. The protein encoded by this gene is structurally related to regulatory factors X1, X2, X4, and X5. It is a transcriptional activator that can bind DNA as a monomer or as a heterodimer with other RFX family members. Multiple transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Aug 2013]

Genome browser will be placed here

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=0.37691745).
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.00000274 (4/1461634) while in subpopulation AMR AF= 0.0000896 (4/44654). AF 95% confidence interval is 0.0000299. There are 0 homozygotes in gnomad4_exome. There are 0 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RFX3NM_001282116.2 linkc.2159T>G p.Leu720Arg missense_variant Exon 17 of 17 ENST00000617270.5 NP_001269045.1 P48380-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RFX3ENST00000617270.5 linkc.2159T>G p.Leu720Arg missense_variant Exon 17 of 17 2 NM_001282116.2 ENSP00000482598.1 P48380-1
RFX3ENST00000382004.7 linkc.2159T>G p.Leu720Arg missense_variant Exon 18 of 18 1 ENSP00000371434.3 P48380-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250758
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135526
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000870
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461634
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727118
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000896
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Feb 06, 2023
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.2159T>G (p.L720R) alteration is located in exon 18 (coding exon 16) of the RFX3 gene. This alteration results from a T to G substitution at nucleotide position 2159, causing the leucine (L) at amino acid position 720 to be replaced by an arginine (R). 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
0.13
BayesDel_addAF
Benign
-0.095
T
BayesDel_noAF
Benign
-0.18
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.13
T;T
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.89
.;D
M_CAP
Benign
0.024
T
MetaRNN
Benign
0.38
T;T
MetaSVM
Benign
-0.71
T
MutationAssessor
Benign
1.1
L;L
PrimateAI
Uncertain
0.74
T
PROVEAN
Benign
-0.28
N;.
REVEL
Benign
0.24
Sift
Uncertain
0.0020
D;.
Sift4G
Uncertain
0.034
D;D
Polyphen
0.97
D;D
Vest4
0.52
MutPred
0.47
Gain of disorder (P = 0.0292);Gain of disorder (P = 0.0292);
MVP
0.14
MPC
0.92
ClinPred
0.70
D
GERP RS
5.7
Varity_R
0.52
gMVP
0.60

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: rs1295664748; hg19: chr9-3225133; API