Genetic Variant NNT:p.Arg129Gly (chr5-43615851-C-G) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_182977.3(NNT):c.385C>G(p.Arg129Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000125 in 1,603,544 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

NNT
NM_182977.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.53

Publications

0 publications found

Variant links:

Genes affected

NNT (HGNC:7863): (nicotinamide nucleotide transhydrogenase) This gene encodes an integral protein of the inner mitochondrial membrane. The enzyme couples hydride transfer between NAD(H) and NADP(+) to proton translocation across the inner mitochondrial membrane. Under most physiological conditions, the enzyme uses energy from the mitochondrial proton gradient to produce high concentrations of NADPH. The resulting NADPH is used for biosynthesis and in free radical detoxification. [provided by RefSeq, Sep 2016]

NNT Gene-Disease associations (from GenCC):

glucocorticoid deficiency 4
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
familial glucocorticoid deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

NNT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.87

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NNT	NM_182977.3 link	c.385C>G	p.Arg129Gly	missense_variant	Exon 4 of 22	ENST00000344920.9	NP_892022.2	Q13423A0A024R0C3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NNT	ENST00000344920.9 link	c.385C>G	p.Arg129Gly	missense_variant	Exon 4 of 22	1	NM_182977.3	ENSP00000343873.4		Q13423

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152076

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

6.89e-7

AC:

AN:

1451468

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

721438

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32956

American (AMR)

AF:

0.00

AC:

AN:

42958

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25764

East Asian (EAS)

AF:

0.00

AC:

AN:

39544

South Asian (SAS)

AF:

0.00

AC:

AN:

84124

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53284

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5648

European-Non Finnish (NFE)

AF:

9.03e-7

AC:

AN:

1107290

Other (OTH)

AF:

0.00

AC:

AN:

59900

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152076

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74286

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41404

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10578

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.85

BayesDel_addAF

Pathogenic

0.34

BayesDel_noAF

Pathogenic

0.26

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.61

.;D;D;D

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.50

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

D;D;.;D

M_CAP

Uncertain

0.20

MetaRNN

Pathogenic

0.87

D;D;D;D

MetaSVM

Uncertain

0.17

MutationAssessor

Uncertain

2.5

.;.;M;M

PhyloP100

2.5

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-6.5

D;D;D;D

REVEL

Pathogenic

0.71

Sift

Uncertain

0.017

D;D;D;D

Sift4G

Uncertain

0.022

D;D;D;D

Polyphen

1.0

.;.;D;D

Vest4

0.86

MutPred

0.68

Gain of methylation at K127 (P = 0.0694);Gain of methylation at K127 (P = 0.0694);Gain of methylation at K127 (P = 0.0694);Gain of methylation at K127 (P = 0.0694);

MVP

0.77

MPC

1.0

ClinPred

0.94

GERP RS

3.9

Varity_R

0.84

gMVP

0.93

Mutation Taster

=27/73

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over