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rs115352435

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_133443.4(GPT2):c.1210C>G(p.Arg404Gly) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000311 in 1,607,772 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. 2/2 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

GPT2
NM_133443.4 missense, splice_region

Scores

6
13
Splicing: ADA: 0.001668
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.22
Variant links:
Genes affected
GPT2 (HGNC:18062): (glutamic--pyruvic transaminase 2) This gene encodes a mitochondrial alanine transaminase, a pyridoxal enzyme that catalyzes the reversible transamination between alanine and 2-oxoglutarate to generate pyruvate and glutamate. Alanine transaminases play roles in gluconeogenesis and amino acid metabolism in many tissues including skeletal muscle, kidney, and liver. Activating transcription factor 4 upregulates this gene under metabolic stress conditions in hepatocyte cell lines. A loss of function mutation in this gene has been associated with developmental encephalopathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.19440031).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GPT2NM_133443.4 linkuse as main transcriptc.1210C>G p.Arg404Gly missense_variant, splice_region_variant 9/12 ENST00000340124.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GPT2ENST00000340124.9 linkuse as main transcriptc.1210C>G p.Arg404Gly missense_variant, splice_region_variant 9/121 NM_133443.4 P1Q8TD30-1
GPT2ENST00000440783.2 linkuse as main transcriptc.910C>G p.Arg304Gly missense_variant, splice_region_variant 9/122 Q8TD30-2
GPT2ENST00000562801.5 linkuse as main transcriptn.1720C>G splice_region_variant, non_coding_transcript_exon_variant 3/62

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152146
Hom.:
0
Cov.:
33
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000203
AC:
5
AN:
246148
Hom.:
0
AF XY:
0.0000375
AC XY:
5
AN XY:
133364
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000446
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000330
AC:
48
AN:
1455508
Hom.:
0
Cov.:
31
AF XY:
0.0000345
AC XY:
25
AN XY:
723690
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000229
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000397
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152264
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000284
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.091
BayesDel_addAF
Benign
-0.066
T
BayesDel_noAF
Benign
-0.22
Cadd
Benign
17
Dann
Benign
0.97
DEOGEN2
Uncertain
0.74
D;.
Eigen
Benign
-0.79
Eigen_PC
Benign
-0.71
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Benign
0.65
T;T
M_CAP
Uncertain
0.25
D
MetaRNN
Benign
0.19
T;T
MetaSVM
Uncertain
-0.24
T
MutationAssessor
Benign
1.9
L;.
MutationTaster
Benign
0.77
D;D
PrimateAI
Benign
0.34
T
PROVEAN
Uncertain
-3.0
D;D
REVEL
Benign
0.13
Sift
Benign
0.033
D;D
Sift4G
Uncertain
0.049
D;T
Polyphen
0.0010
B;.
Vest4
0.34
MVP
0.82
MPC
0.56
ClinPred
0.22
T
GERP RS
1.4
Varity_R
0.45
gMVP
0.57

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0017
dbscSNV1_RF
Benign
0.060
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs115352435; hg19: chr16-46956326; API