rs781791676

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_004135.4(IDH3G):​c.1168G>A​(p.Ala390Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000388 in 1,209,984 control chromosomes in the GnomAD database, including 1 homozygotes. There are 10 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 25)
Exomes 𝑓: 0.000042 ( 1 hom. 10 hem. )

Consequence

IDH3G
NM_004135.4 missense

Scores

2
3
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.62

Publications

0 publications found
Variant links:
Genes affected
IDH3G (HGNC:5386): (isocitrate dehydrogenase (NAD(+)) 3 non-catalytic subunit gamma) Isocitrate dehydrogenases catalyze the oxidative decarboxylation of isocitrate to 2-oxoglutarate. These enzymes belong to two distinct subclasses, one of which utilizes NAD(+) as the electron acceptor and the other NADP(+). Five isocitrate dehydrogenases have been reported: three NAD(+)-dependent isocitrate dehydrogenases, which localize to the mitochondrial matrix, and two NADP(+)-dependent isocitrate dehydrogenases, one of which is mitochondrial and the other predominantly cytosolic. NAD(+)-dependent isocitrate dehydrogenases catalyze the allosterically regulated rate-limiting step of the tricarboxylic acid cycle. Each isozyme is a heterotetramer that is composed of two alpha subunits, one beta subunit, and one gamma subunit. The protein encoded by this gene is the gamma subunit of one isozyme of NAD(+)-dependent isocitrate dehydrogenase. This gene is a candidate gene for periventricular heterotopia. Several alternatively spliced transcript variants of this gene have been described, but only some of their full length natures have been determined. [provided by RefSeq, Jul 2008]
SRPK3 (HGNC:11402): (SRSF protein kinase 3) This gene encodes a protein kinase similar to a protein kinase which is specific for the SR (serine/arginine-rich domain) family of splicing factors. A highly similar protein has been shown to play a role in muscle development in mice. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2009]
SRPK3 Gene-Disease associations (from GenCC):
  • intellectual developmental disorder, X-linked 114
    Inheritance: XL Classification: STRONG, LIMITED Submitted by: PanelApp Australia, Ambry Genetics
  • intellectual disability
    Inheritance: XL Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.02639839).
BS2
High Hemizygotes in GnomAdExome4 at 10 XL gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004135.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IDH3G
NM_004135.4
MANE Select
c.1168G>Ap.Ala390Thr
missense
Exon 13 of 13NP_004126.1P51553-1
IDH3G
NM_174869.3
c.*263G>A
3_prime_UTR
Exon 12 of 12NP_777358.1P51553-2
SRPK3
NM_014370.4
MANE Select
c.*366C>T
downstream_gene
N/ANP_055185.2Q9UPE1-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IDH3G
ENST00000217901.10
TSL:1 MANE Select
c.1168G>Ap.Ala390Thr
missense
Exon 13 of 13ENSP00000217901.5P51553-1
IDH3G
ENST00000454076.5
TSL:1
c.619G>Ap.Ala207Thr
missense
Exon 6 of 6ENSP00000400115.1H0Y5Q7
IDH3G
ENST00000958656.1
c.1267G>Ap.Ala423Thr
missense
Exon 14 of 14ENSP00000628715.1

Frequencies

GnomAD3 genomes
AF:
0.00000888
AC:
1
AN:
112672
Hom.:
0
Cov.:
25
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000929
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:
0.000197
AC:
36
AN:
182787
AF XY:
0.000133
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00120
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000664
GnomAD4 exome
AF:
0.0000419
AC:
46
AN:
1097312
Hom.:
1
Cov.:
33
AF XY:
0.0000275
AC XY:
10
AN XY:
363148
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26401
American (AMR)
AF:
0.00128
AC:
45
AN:
35203
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19378
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30206
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54143
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
39734
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4133
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
842031
Other (OTH)
AF:
0.0000217
AC:
1
AN:
46083
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.00000888
AC:
1
AN:
112672
Hom.:
0
Cov.:
25
AF XY:
0.00
AC XY:
0
AN XY:
34818
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30998
American (AMR)
AF:
0.0000929
AC:
1
AN:
10765
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2655
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3582
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2777
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6226
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
240
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53230
Other (OTH)
AF:
0.00
AC:
0
AN:
1519
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

Age Distribution

Genome 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
Alfa
AF:
0.0000409
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.000214
AC:
26

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
14
DANN
Uncertain
0.99
DEOGEN2
Benign
0.24
T
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Benign
0.78
T
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.026
T
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
0.49
N
PhyloP100
1.6
PrimateAI
Benign
0.47
T
PROVEAN
Benign
0.020
N
REVEL
Benign
0.18
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.096
B
Vest4
0.13
MutPred
0.27
Loss of helix (P = 0.0558)
MVP
0.65
MPC
0.92
ClinPred
0.12
T
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.25
gMVP
0.59
Mutation Taster
=95/5
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: rs781791676; hg19: chrX-153051341; API