1-151343145-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_001025603.2(RFX5):c.892G>A(p.Gly298Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000126 in 1,611,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G298R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

RFX5
NM_001025603.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 0.0860

Publications

1 publications found

Variant links:

Genes affected

RFX5 (HGNC:9986): (regulatory factor X5) A lack of MHC-II expression results in a severe immunodeficiency syndrome called MHC-II deficiency, or the bare lymphocyte syndrome (BLS; MIM 209920). At least 4 complementation groups have been identified in B-cell lines established from patients with BLS. The molecular defects in complementation groups B, C, and D all lead to a deficiency in RFX, a nuclear protein complex that binds to the X box of MHC-II promoters. The lack of RFX binding activity in complementation group C results from mutations in the RFX5 gene encoding the 75-kD subunit of RFX (Steimle et al., 1995). RFX5 is the fifth member of the growing family of DNA-binding proteins sharing a novel and highly characteristic DNA-binding domain called the RFX motif. Multiple alternatively spliced transcript variants have been found but the full-length natures of only two have been determined. [provided by RefSeq, Jul 2008]

RFX5 links:

RFX5-AS1 (HGNC:40503): (RFX5 antisense RNA 1)

RFX5-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.021680802).

BP6

Variant 1-151343145-C-T is Benign according to our data. Variant chr1-151343145-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 471257.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RFX5	NM_001025603.2 link	c.892G>A	p.Gly298Ser	missense_variant	Exon 11 of 11	ENST00000452671.7	NP_001020774.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RFX5	ENST00000452671.7 link	c.892G>A	p.Gly298Ser	missense_variant	Exon 11 of 11	1	NM_001025603.2	ENSP00000389130.2

Frequencies

GnomAD3 genomes

AF:

0.000204

AC:

AN:

152208

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000232

AC:

AN:

245684

AF XY:

0.000268

show subpopulations

Gnomad AFR exome

AF:

0.000204

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000437

Gnomad FIN exome

AF:

0.00108

Gnomad NFE exome

AF:

0.000163

Gnomad OTH exome

AF:

0.000331

GnomAD4 exome

AF:

0.000116

AC:

169

AN:

1459368

Hom.:

Cov.:

AF XY:

0.000120

AC XY:

AN XY:

725930

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

33436

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.000126

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86182

European-Finnish (FIN)

AF:

0.000935

AC:

AN:

52432

Middle Eastern (MID)

AF:

0.000222

AC:

AN:

4506

European-Non Finnish (NFE)

AF:

0.0000899

AC:

100

AN:

1112000

Other (OTH)

AF:

0.000116

AC:

AN:

60252

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000223

AC:

AN:

152326

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74484

show subpopulations

African (AFR)

AF:

0.000265

AC:

AN:

41574

American (AMR)

AF:

0.000131

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.000942

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000162

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000243

Hom.:

Bravo

AF:

0.000144

ESP6500AA

AF:

0.000231

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000199

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 12, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.892G>A (p.G298S) alteration is located in exon 11 (coding exon 9) of the RFX5 gene. This alteration results from a G to A substitution at nucleotide position 892, causing the glycine (G) at amino acid position 298 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

MHC class II deficiency

Uncertain:1

Jan 13, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 298 of the RFX5 protein (p.Gly298Ser). This variant is present in population databases (rs146341254, gnomAD 0.09%). This variant has not been reported in the literature in individuals affected with RFX5-related conditions. ClinVar contains an entry for this variant (Variation ID: 471257). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The serine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided

Benign:1

Apr 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

RFX5: BP4 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.43

CADD

Benign

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.050

T;T;.;T;T

Eigen

Benign

-0.98

Eigen_PC

Benign

-0.98

FATHMM_MKL

Benign

0.062

LIST_S2

Benign

0.69

.;.;T;T;T

M_CAP

Benign

0.012

MetaRNN

Benign

0.022

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.69

N;N;.;N;.

PhyloP100

0.086

PrimateAI

Benign

0.32

PROVEAN

Benign

0.69

N;N;N;N;N

REVEL

Benign

0.079

Sift

Benign

0.15

T;T;T;T;T

Sift4G

Benign

0.76

T;T;T;T;.

Polyphen

0.010

B;B;.;B;.

Vest4

0.092

MVP

0.54

MPC

0.14

ClinPred

0.0026

GERP RS

0.85

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.12

gMVP

0.15

Mutation Taster

=95/5

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

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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