2-181678271-G-C

Variant names:

• chr2-181678271-G-C
• NM_002500.5:c.590C>G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002500.5(NEUROD1):​c.590C>G​(p.Pro197Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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. P197H) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NEUROD1 NM_002500.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.76

Genes affected

NEUROD1 (HGNC:7762): (neuronal differentiation 1) This gene encodes a member of the NeuroD family of basic helix-loop-helix (bHLH) transcription factors. The protein forms heterodimers with other bHLH proteins and activates transcription of genes that contain a specific DNA sequence known as the E-box. It regulates expression of the insulin gene, and mutations in this gene result in type II diabetes mellitus. [provided by RefSeq, Jul 2008]

CERKL (HGNC:21699): (ceramide kinase like) This gene was initially identified as a locus (RP26) associated with an autosomal recessive form of retinitis pigmentosa (arRP) disease. This gene encodes a protein with ceramide kinase-like domains, however, the protein does not phosphorylate ceramide and its target substrate is currently unknown. This protein may be a negative regulator of apoptosis in photoreceptor cells. Mutations in this gene cause a form of retinitis pigmentosa characterized by autosomal recessive cone and rod dystrophy (arCRD). Alternative splicing of this gene results in multiple transcript variants encoding different isoforms and non-coding transcripts.[provided by RefSeq, May 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEUROD1	NM_002500.5	c.590C>G	p.Pro197Arg	missense_variant	Exon 2 of 2	ENST00000295108.4	NP_002491.3
NEUROD1	NR_146175.2	n.88+2159C>G		intron_variant	Intron 1 of 1
NEUROD1	NR_146176.2	n.88+2159C>G		intron_variant	Intron 1 of 1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NEUROD1	ENST00000295108.4	c.590C>G	p.Pro197Arg	missense_variant	Exon 2 of 2	1	NM_002500.5	ENSP00000295108.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.90
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.080
CADD	Benign	23
DANN	Benign	0.90
DEOGEN2	Uncertain	0.42	T
Eigen	Uncertain	0.36
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Benign	0.21	N
LIST_S2	Uncertain	0.93	D
M_CAP	Benign	0.025	T
MetaRNN	Uncertain	0.44	T
MetaSVM	Benign	-0.67	T
MutationAssessor	Benign	1.9	L
PrimateAI	Uncertain	0.73	T
PROVEAN	Uncertain	-2.9	D
REVEL	Benign	0.27
Sift	Benign	0.081	T
Sift4G	Benign	0.67	T
Polyphen		0.27	B
Vest4		0.56
MutPred		0.19		Loss of glycosylation at T194 (P = 0.0406);
MVP		0.88
MPC		1.4
ClinPred		0.58	D
GERP RS		6.0
Varity_R		0.35
gMVP		0.69

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-182542998;