10-69572467-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020999.4(NEUROG3):​c.577G>A​(p.Gly193Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000629 in 1,589,662 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. G193G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000063 ( 0 hom. )

Consequence

NEUROG3
NM_020999.4 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.625

Publications

1 publications found
Variant links:
Genes affected
NEUROG3 (HGNC:13806): (neurogenin 3) The protein encoded by this gene is a basic helix-loop-helix (bHLH) transcription factor involved in neurogenesis. The encoded protein likely acts as a heterodimer with another bHLH protein. Defects in this gene are a cause of congenital malabsorptive diarrhea 4 (DIAR4).[provided by RefSeq, May 2010]
NEUROG3 Gene-Disease associations (from GenCC):
  • congenital malabsorptive diarrhea 4
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, PanelApp Australia, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • permanent neonatal diabetes mellitus
    Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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=0.12126452).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NEUROG3NM_020999.4 linkc.577G>A p.Gly193Arg missense_variant Exon 2 of 2 ENST00000242462.5 NP_066279.2 Q9Y4Z2
NEUROG3XM_017016280.2 linkc.577G>A p.Gly193Arg missense_variant Exon 2 of 2 XP_016871769.1 Q9Y4Z2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NEUROG3ENST00000242462.5 linkc.577G>A p.Gly193Arg missense_variant Exon 2 of 2 1 NM_020999.4 ENSP00000242462.4 Q9Y4Z2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152158
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000100
AC:
2
AN:
200068
AF XY:
0.00000908
show subpopulations
Gnomad AFR exome
AF:
0.0000922
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000110
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000626
AC:
9
AN:
1437504
Hom.:
0
Cov.:
37
AF XY:
0.00000420
AC XY:
3
AN XY:
713600
show subpopulations
African (AFR)
AF:
0.0000305
AC:
1
AN:
32810
American (AMR)
AF:
0.00
AC:
0
AN:
41382
Ashkenazi Jewish (ASJ)
AF:
0.0000388
AC:
1
AN:
25764
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38248
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83836
European-Finnish (FIN)
AF:
0.0000203
AC:
1
AN:
49224
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5582
European-Non Finnish (NFE)
AF:
0.00000545
AC:
6
AN:
1101298
Other (OTH)
AF:
0.00
AC:
0
AN:
59360
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.442
Heterozygous variant carriers
0
1
2
3
4
5
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
AF:
0.00000657
AC:
1
AN:
152158
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74314
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5164
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000168
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Jan 30, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.577G>A (p.G193R) alteration is located in exon 2 (coding exon 1) of the NEUROG3 gene. This alteration results from a G to A substitution at nucleotide position 577, causing the glycine (G) at amino acid position 193 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided Uncertain:1
Mar 28, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 193 of the NEUROG3 protein (p.Gly193Arg). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with NEUROG3-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The arginine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect 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
0.10
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
17
DANN
Uncertain
1.0
DEOGEN2
Benign
0.31
T
Eigen
Benign
-0.84
Eigen_PC
Benign
-0.87
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.57
T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.12
T
MetaSVM
Uncertain
-0.27
T
MutationAssessor
Benign
1.1
L
PhyloP100
0.63
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.17
Sift
Uncertain
0.0040
D
Sift4G
Uncertain
0.0090
D
Polyphen
0.027
B
Vest4
0.19
MutPred
0.33
Gain of solvent accessibility (P = 0.0097);
MVP
0.89
MPC
0.49
ClinPred
0.11
T
GERP RS
1.0
Varity_R
0.095
gMVP
0.72
Mutation Taster
=92/8
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: rs762942188; hg19: chr10-71332223; API