4-170073156-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_016228.4(AADAT):​c.634C>T​(p.Arg212Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,378 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

AADAT
NM_016228.4 missense

Scores

14
4
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.14
Variant links:
Genes affected
AADAT (HGNC:17929): (aminoadipate aminotransferase) This gene encodes a protein that is highly similar to mouse and rat kynurenine aminotransferase II. The rat protein is a homodimer with two transaminase activities. One activity is the transamination of alpha-aminoadipic acid, a final step in the saccaropine pathway which is the major pathway for L-lysine catabolism. The other activity involves the transamination of kynurenine to produce kynurenine acid, the precursor of kynurenic acid which has neuroprotective properties. Several transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Nov 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.914

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AADATNM_016228.4 linkuse as main transcriptc.634C>T p.Arg212Cys missense_variant 5/13 ENST00000337664.9 NP_057312.1 Q8N5Z0-1Q4W5N8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AADATENST00000337664.9 linkuse as main transcriptc.634C>T p.Arg212Cys missense_variant 5/131 NM_016228.4 ENSP00000336808.4 Q8N5Z0-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250716
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135548
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.0000290
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:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461378
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
726990
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 16, 2021The c.634C>T (p.R212C) alteration is located in exon 5 (coding exon 5) of the AADAT gene. This alteration results from a C to T substitution at nucleotide position 634, causing the arginine (R) at amino acid position 212 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.65
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.34
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.97
D;.;D;D;D
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.93
.;D;.;D;D
M_CAP
Uncertain
0.22
D
MetaRNN
Pathogenic
0.91
D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.7
H;.;H;H;.
PrimateAI
Uncertain
0.52
T
PROVEAN
Pathogenic
-8.0
D;D;D;D;D
REVEL
Pathogenic
0.70
Sift
Pathogenic
0.0
D;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;.
Polyphen
1.0
D;D;D;D;.
Vest4
0.43
MutPred
0.76
Loss of ubiquitination at K214 (P = 0.0346);.;Loss of ubiquitination at K214 (P = 0.0346);Loss of ubiquitination at K214 (P = 0.0346);.;
MVP
0.95
MPC
2.2
ClinPred
1.0
D
GERP RS
5.4
Varity_R
0.87
gMVP
0.94

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

LitVar

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

Other links and lift over

dbSNP: rs1295236919; hg19: chr4-170994307; COSMIC: COSV61788105; COSMIC: COSV61788105; API