16-50699541-G-C

Variant names:

• chr16-50699541-G-C
• rs200089552
• NM_001370466.1:c.46G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001370466.1(NOD2):​c.46G>C​(p.Glu16Gln) 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 1,461,682 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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 variant affecting the same amino acid position, but resulting in a different missense (i.e. E16K) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: NOD2 NM_001370466.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.11
• Publications: 3 publications found

Genes affected

NOD2 (HGNC:5331): (nucleotide binding oligomerization domain containing 2) This gene is a member of the Nod1/Apaf-1 family and encodes a protein with two caspase recruitment (CARD) domains and six leucine-rich repeats (LRRs). The protein is primarily expressed in the peripheral blood leukocytes. It plays a role in the immune response to intracellular bacterial lipopolysaccharides (LPS) by recognizing the muramyl dipeptide (MDP) derived from them and activating the NFKB protein. Mutations in this gene have been associated with Crohn disease and Blau syndrome. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jun 2014]

NOD2 Gene-Disease associations (from GenCC):

• Blau syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Genomics England PanelApp, G2P, Illumina, Labcorp Genetics (formerly Invitae)
• inflammatory bowel disease 1

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.21020925).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001370466.1. 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
	NOD2	NM_001370466.1	MANE Select	c.46G>C	p.Glu16Gln	missense	Exon 2 of 12	NP_001357395.1
	NOD2	NM_022162.3		c.127G>C	p.Glu43Gln	missense	Exon 2 of 12	NP_071445.1
	NOD2	NM_001293557.2		c.46G>C	p.Glu16Gln	missense	Exon 1 of 11	NP_001280486.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NOD2	ENST00000647318.2	MANE Select	c.46G>C	p.Glu16Gln	missense	Exon 2 of 12	ENSP00000495993.1
	NOD2	ENST00000300589.6	TSL:1	c.127G>C	p.Glu43Gln	missense	Exon 2 of 12	ENSP00000300589.2
	NOD2	ENST00000527070.5	TSL:1	c.46G>C	p.Glu16Gln	missense	Exon 2 of 4	ENSP00000435149.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461682 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 727142

African (AFR) AF: 0.00 AC: 0 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44720

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: 86244

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53392

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5662

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111982

Other (OTH) AF: 0.00 AC: 0 AN: 60380

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.081
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.63
CADD	Benign	15
DANN	Uncertain	0.99
DEOGEN2	Benign	0.059	T
Eigen	Benign	0.13
Eigen_PC	Benign	0.20
FATHMM_MKL	Benign	0.66	D
LIST_S2	Benign	0.83	T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.21	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.69	N
PhyloP100		1.1
PrimateAI	Benign	0.29	T
PROVEAN	Benign	-0.76	N
REVEL	Benign	0.060
Sift	Benign	0.47	T
Sift4G	Benign	0.24	T
Polyphen		0.74	P
Vest4		0.12
MutPred		0.53		Loss of phosphorylation at S39 (P = 0.164)
MVP		0.64
MPC		0.10
ClinPred		0.55	D
GERP RS		4.3
Varity_R		0.16
gMVP		0.098
Mutation Taster		=95/5	polymorphism

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: rs200089552; hg19: chr16-50733452;