2-32251493-A-C

Variant names:

• chr2-32251493-A-C
• rs188120749
• NM_001199138.2:c.371T>G

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_001199138.2(NLRC4):​c.371T>G​(p.Ile124Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,772 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I124T) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: NLRC4 NM_001199138.2 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 1.92
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• periodic fever-infantile enterocolitis-autoinflammatory syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Illumina, Orphanet, Labcorp Genetics (formerly Invitae)
• familial cold autoinflammatory syndrome 4

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

ENSG00000289727 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.17045346).
• BS2: High AC in GnomAdExome4 at 8 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001199138.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NLRC4	NM_001199138.2	MANE Select	c.371T>G	p.Ile124Ser	missense	Exon 4 of 9	NP_001186067.1	Q9NPP4-1
	NLRC4	NM_001199139.1		c.371T>G	p.Ile124Ser	missense	Exon 4 of 9	NP_001186068.1	Q9NPP4-1
	NLRC4	NM_021209.4		c.371T>G	p.Ile124Ser	missense	Exon 4 of 9	NP_067032.3	Q9NPP4-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NLRC4	ENST00000402280.6	TSL:1 MANE Select	c.371T>G	p.Ile124Ser	missense	Exon 4 of 9	ENSP00000385428.1	Q9NPP4-1
	NLRC4	ENST00000360906.9	TSL:1	c.371T>G	p.Ile124Ser	missense	Exon 4 of 9	ENSP00000354159.5	Q9NPP4-1
	NLRC4	ENST00000342905.10	TSL:1	c.262+926T>G		intron	N/A	ENSP00000339666.6	Q9NPP4-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251376 AF XY: 0.00000736

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000547 AC: 8 AN: 1461772 Hom.: 0 Cov.: 33 AF XY: 0.00000413 AC XY: 3 AN XY: 727206

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000630 AC: 7 AN: 1111912

Other (OTH) AF: 0.0000166 AC: 1 AN: 60392

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)
-	1	-	Periodic fever-infantile enterocolitis-autoinflammatory syndrome;C4015276:Familial cold autoinflammatory syndrome 4 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.47
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.41
CADD	Benign	20
DANN	Uncertain	0.98
DEOGEN2	Benign	0.11	T
Eigen	Benign	-0.59
Eigen_PC	Benign	-0.54
FATHMM_MKL	Benign	0.62	D
LIST_S2	Benign	0.75	T
M_CAP	Benign	0.034	D
MetaRNN	Benign	0.17	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	2.0	M
PhyloP100		1.9
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-0.18	N
REVEL	Benign	0.088
Sift	Uncertain	0.0020	D
Polyphen		0.29	B
Vest4		0.39
MutPred		0.56		Gain of loop (P = 0.024)
MVP		0.29
MPC		0.56
ClinPred		0.42	T
GERP RS		2.3
Varity_R		0.10
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

Other links and lift over

dbSNP: rs188120749; hg19: chr2-32476562;