chrX-119589581-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001417890.1(NKRF):c.2123G>A(p.Arg708His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000133 in 1,203,288 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000019 ( 0 hom., 0 hem., cov: 21)

Exomes 𝑓: 0.000013 ( 0 hom. 4 hem. )

Consequence

NKRF
NM_001417890.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.41

Variant links:

Genes affected

NKRF (HGNC:19374): (NFKB repressing factor) This gene encodes a transcriptional repressor that interacts with specific negative regulatory elements to mediate transcriptional repression of certain nuclear factor kappa B responsive genes. The protein localizes predominantly to the nucleolus with a small fraction found in the nucleoplasm and cytoplasm. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2010]

NKRF links:

UBE2A (HGNC:12472): (ubiquitin conjugating enzyme E2 A) The modification of proteins with ubiquitin is an important cellular mechanism for targeting abnormal or short-lived proteins for degradation. Ubiquitination involves at least three classes of enzymes: ubiquitin-activating enzymes, ubiquitin-conjugating enzymes, and ubiquitin-protein ligases. This gene encodes a member of the E2 ubiquitin-conjugating enzyme family. This enzyme is required for post-replicative DNA damage repair, and may play a role in transcriptional regulation. Mutations in this gene are associated with cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]

UBE2A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.16228646).

BS2

High Hemizygotes in GnomAdExome4 at 4 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NKRF	NM_001417890.1 link	c.2123G>A	p.Arg708His	missense_variant	Exon 4 of 4		NP_001404819.1
NKRF	NR_163972.1 link	n.2652G>A		non_coding_transcript_exon_variant	Exon 4 of 4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NKRF	ENST00000688521.1 link	c.2123G>A	p.Arg708His	missense_variant	Exon 4 of 4			ENSP00000508667.1		A0A8I5KX72

Frequencies

GnomAD3 genomes

AF:

0.0000190

AC:

AN:

105418

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

29026

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000104

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000300

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000164

AC:

AN:

183437

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

67881

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:

0.000105

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000122

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000128

AC:

AN:

1097870

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

363252

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000555

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000713

Gnomad4 OTH exome

AF:

0.000109

GnomAD4 genome

AF:

0.0000190

AC:

AN:

105418

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

29026

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000104

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000300

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 11, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1889G>A (p.R630H) alteration is located in exon 4 (coding exon 3) of the NKRF gene. This alteration results from a G to A substitution at nucleotide position 1889, causing the arginine (R) at amino acid position 630 to be replaced by a histidine (H). 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

0.088

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.65

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.18

T;T;.

FATHMM_MKL

Uncertain

0.78

LIST_S2

Uncertain

0.87

.;D;D

M_CAP

Uncertain

0.25

MetaRNN

Benign

0.16

T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.77

N;N;.

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.67

N;N;N

REVEL

Benign

0.055

Sift

Benign

0.33

T;T;T

Sift4G

Benign

0.22

T;T;T

Polyphen

0.0010

B;B;.

Vest4

0.062

MutPred

0.58

Loss of MoRF binding (P = 0.02);Loss of MoRF binding (P = 0.02);.;

MVP

0.55

MPC

1.0

ClinPred

0.10

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.076

gMVP

0.72

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over