Variant 9-33295217-A-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_002504.6(NFX1):c.823A>G(p.Arg275Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NFX1
NM_002504.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.831

Variant links:

Genes affected

NFX1 (HGNC:7803): (nuclear transcription factor, X-box binding 1) MHC class II gene expression is controlled primarily at the transcriptional level by transcription factors that bind to the X and Y boxes, two highly conserved elements in the proximal promoter of MHC class II genes. The protein encoded by this gene is a transcriptional repressor capable of binding to the conserved X box motif of HLA-DRA and other MHC class II genes in vitro. The protein may play a role in regulating the duration of an inflammatory response by limiting the period in which class II MHC molecules are induced by IFN-gamma. Three alternative splice variants, each of which encodes a different isoform, have been identified. [provided by RefSeq, Jul 2008]

NFX1 links:

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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=0.09559068).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NFX1	NM_002504.6 linkuse as main transcript	c.823A>G	p.Arg275Gly	missense_variant	2/24	ENST00000379540.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NFX1	ENST00000379540.8 linkuse as main transcript	c.823A>G	p.Arg275Gly	missense_variant	2/24	1	NM_002504.6	P1	Q12986-1
NFX1	ENST00000318524.6 linkuse as main transcript	c.823A>G	p.Arg275Gly	missense_variant	2/16	1			Q12986-3
NFX1	ENST00000379521.8 linkuse as main transcript	n.884A>G		non_coding_transcript_exon_variant	2/21	1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461886

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727242

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

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.:

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 submitter

clinical testing

Ambry Genetics

Nov 07, 2022

The c.823A>G (p.R275G) alteration is located in exon 2 (coding exon 2) of the NFX1 gene. This alteration results from a A to G substitution at nucleotide position 823, causing the arginine (R) at amino acid position 275 to be replaced by a glycine (G). 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

0.081

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.19

T;.

Eigen

Benign

-0.42

Eigen_PC

Benign

-0.34

FATHMM_MKL

Benign

0.24

LIST_S2

Benign

0.81

T;T

M_CAP

Benign

0.025

MetaRNN

Benign

0.096

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.0

M;M

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.31

PROVEAN

Uncertain

-2.7

D;D

REVEL

Benign

0.029

Sift

Uncertain

0.017

D;D

Sift4G

Benign

0.13

T;T

Polyphen

0.094

B;B

Vest4

0.23

MutPred

0.17

Loss of MoRF binding (P = 0.0116);Loss of MoRF binding (P = 0.0116);

MVP

0.37

MPC

0.26

ClinPred

0.26

GERP RS

3.4

Varity_R

0.16

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over