Genetic Variant NLRC4:p.Glu282Gly (chr2-32251019-T-C) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BS1_SupportingBS2

The NM_001199138.2(NLRC4):c.845A>G(p.Glu282Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000616 in 1,461,878 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

NLRC4
NM_001199138.2 missense

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 4.29

Variant links:

Genes affected

NLRC4 (HGNC:16412): (NLR family CARD domain containing 4) This gene encodes a member of the caspase recruitment domain-containing NLR family. Family members play essential roles in innate immune response to a wide range of pathogenic organisms, tissue damage and other cellular stresses. Mutations in this gene result in autoinflammation with infantile enterocolitis. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2014]

NLRC4 links:

ENSG00000289727 (HGNC:):

ENSG00000289727 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BS1

Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.00000616 (9/1461878) while in subpopulation SAS AF= 0.000104 (9/86258). AF 95% confidence interval is 0.0000539. There are 0 homozygotes in gnomad4_exome. There are 6 alleles in male gnomad4_exome subpopulation. Median coverage is 40. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NLRC4	NM_001199138.2 link	c.845A>G	p.Glu282Gly	missense_variant	Exon 4 of 9	ENST00000402280.6	NP_001186067.1	Q9NPP4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NLRC4	ENST00000402280.6 link	c.845A>G	p.Glu282Gly	missense_variant	Exon 4 of 9	1	NM_001199138.2	ENSP00000385428.1		Q9NPP4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251376

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135838

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:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000616

AC:

AN:

1461878

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727238

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:

0.000104

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000434

Hom.:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

NLRC4-related disorder

Uncertain:1

Mar 08, 2024

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

The NLRC4 c.845A>G variant is predicted to result in the amino acid substitution p.Glu282Gly. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0098% of alleles in individuals of South Asian descent in gnomAD (3 of ~250,000 alleles, http://gnomad.broadinstitute.org). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.24

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.33

T;T;T

Eigen

Uncertain

0.34

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.69

.;.;T

M_CAP

Pathogenic

0.36

MetaRNN

Uncertain

0.55

D;D;D

MetaSVM

Uncertain

0.044

MutationAssessor

Uncertain

2.2

M;M;M

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-1.8

N;N;N

REVEL

Uncertain

0.47

Sift

Benign

0.11

T;T;T

Polyphen

1.0

D;D;D

Vest4

0.34

MutPred

0.61

Gain of MoRF binding (P = 0.0379);Gain of MoRF binding (P = 0.0379);Gain of MoRF binding (P = 0.0379);

MVP

0.83

MPC

0.85

ClinPred

0.86

GERP RS

3.3

Varity_R

0.27

gMVP

0.73

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