2-32249994-A-G

Variant names:

• chr2-32249994-A-G
• rs61741169
• NM_001199138.2:c.1870T>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001199138.2(NLRC4):​c.1870T>C​(p.Trp624Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Benign in ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: NLRC4 NM_001199138.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.56
• Publications: 2 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 -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.052411288).

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.1870T>C	p.Trp624Arg	missense	Exon 4 of 9	NP_001186067.1	Q9NPP4-1
	NLRC4	NM_001199139.1		c.1870T>C	p.Trp624Arg	missense	Exon 4 of 9	NP_001186068.1	Q9NPP4-1
	NLRC4	NM_021209.4		c.1870T>C	p.Trp624Arg	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.1870T>C	p.Trp624Arg	missense	Exon 4 of 9	ENSP00000385428.1	Q9NPP4-1
	NLRC4	ENST00000360906.9	TSL:1	c.1870T>C	p.Trp624Arg	missense	Exon 4 of 9	ENSP00000354159.5	Q9NPP4-1
	NLRC4	ENST00000342905.10	TSL:1	c.262+2425T>C		intron	N/A	ENSP00000339666.6	Q9NPP4-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461888 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727244

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

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

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

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: 53420

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

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1112012

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 5

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.075
BayesDel_addAF	Benign	-0.40	T
BayesDel_noAF	Benign	-0.81
CADD	Benign	0.0090
DANN	Benign	0.30
DEOGEN2	Benign	0.081	T
Eigen	Benign	-2.1
Eigen_PC	Benign	-2.1
FATHMM_MKL	Benign	0.0014	N
LIST_S2	Benign	0.18	T
M_CAP	Benign	0.0040	T
MetaRNN	Benign	0.052	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	-0.34	N
PhyloP100		-1.6
PrimateAI	Benign	0.23	T
PROVEAN	Benign	0.33	N
REVEL	Benign	0.037
Sift	Benign	0.67	T
Polyphen		0.0	B
Vest4		0.066
MutPred		0.51		Gain of disorder (P = 0.0064)
MVP		0.13
MPC		0.36
ClinPred		0.039	T
GERP RS		-6.5
Varity_R		0.041
gMVP		0.25

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: rs61741169; hg19: chr2-32475063;