rs769988393

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1PM2

The NM_001370466.1(NOD2):​c.1321C>A​(p.Arg441Ser) 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 1,461,310 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R441H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

NOD2
NM_001370466.1 missense

Scores

1
13
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.788

Publications

3 publications found
Variant links:
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)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 10 uncertain in NM_001370466.1
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NOD2NM_001370466.1 linkc.1321C>A p.Arg441Ser missense_variant Exon 4 of 12 ENST00000647318.2 NP_001357395.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NOD2ENST00000647318.2 linkc.1321C>A p.Arg441Ser missense_variant Exon 4 of 12 NM_001370466.1 ENSP00000495993.1 Q9HC29-2
NOD2ENST00000300589.6 linkc.1402C>A p.Arg468Ser missense_variant Exon 4 of 12 1 ENSP00000300589.2 Q9HC29-1
NOD2ENST00000641284.2 linkn.1321C>A non_coding_transcript_exon_variant Exon 4 of 6 ENSP00000493088.1 A0A286YF65
NOD2ENST00000646677.2 linkn.1321C>A non_coding_transcript_exon_variant Exon 4 of 13 ENSP00000496533.1 A0A286YF65

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461310
Hom.:
0
Cov.:
34
AF XY:
0.00000275
AC XY:
2
AN XY:
726988
show subpopulations
African (AFR)
AF:
0.00
AC:
0
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:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52854
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112000
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
33
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Regional enteritis;C5201146:Blau syndrome Uncertain:1
Sep 12, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with serine, which is neutral and polar, at codon 468 of the NOD2 protein (p.Arg468Ser). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with NOD2-related conditions. ClinVar contains an entry for this variant (Variation ID: 576942). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt NOD2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.060
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.30
.;T
Eigen
Uncertain
0.38
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Benign
0.32
N
LIST_S2
Uncertain
0.86
D;D
M_CAP
Pathogenic
0.40
D
MetaRNN
Uncertain
0.65
D;D
MetaSVM
Uncertain
0.038
D
MutationAssessor
Uncertain
2.7
.;M
PhyloP100
0.79
PrimateAI
Benign
0.46
T
PROVEAN
Uncertain
-3.0
.;D
REVEL
Uncertain
0.35
Sift
Uncertain
0.0040
.;D
Sift4G
Uncertain
0.0040
.;D
Polyphen
1.0
D;D
Vest4
0.31
MutPred
0.49
.;Gain of disorder (P = 0.1194);
MVP
0.89
MPC
0.21
ClinPred
0.98
D
GERP RS
5.1
Varity_R
0.64
gMVP
0.48
Mutation Taster
=71/29
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

Publications

Other links and lift over

dbSNP: rs769988393; hg19: chr16-50745224; API