rs6107100

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_ModerateBP6_ModerateBA1

The NM_006899.5(IDH3B):​c.37-34G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.106 in 1,612,784 control chromosomes in the GnomAD database, including 13,565 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.17 ( 3778 hom., cov: 32)
Exomes 𝑓: 0.099 ( 9787 hom. )

Consequence

IDH3B
NM_006899.5 intron

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0560
Variant links:
Genes affected
IDH3B (HGNC:5385): (isocitrate dehydrogenase (NAD(+)) 3 non-catalytic subunit beta) 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 beta subunit of one isozyme of NAD(+)-dependent isocitrate dehydrogenase. Multiple alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Sep 2016]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.46).
BP6
Variant 20-2664039-C-A is Benign according to our data. Variant chr20-2664039-C-A is described in ClinVar as [Benign]. Clinvar id is 1276882.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.378 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IDH3BNM_006899.5 linkuse as main transcriptc.37-34G>T intron_variant ENST00000380843.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IDH3BENST00000380843.9 linkuse as main transcriptc.37-34G>T intron_variant 1 NM_006899.5 O43837-1

Frequencies

GnomAD3 genomes
AF:
0.174
AC:
26532
AN:
152064
Hom.:
3780
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.383
Gnomad AMI
AF:
0.0241
Gnomad AMR
AF:
0.140
Gnomad ASJ
AF:
0.0395
Gnomad EAS
AF:
0.221
Gnomad SAS
AF:
0.151
Gnomad FIN
AF:
0.0786
Gnomad MID
AF:
0.0949
Gnomad NFE
AF:
0.0784
Gnomad OTH
AF:
0.154
GnomAD3 exomes
AF:
0.134
AC:
33343
AN:
249532
Hom.:
3253
AF XY:
0.125
AC XY:
16844
AN XY:
135192
show subpopulations
Gnomad AFR exome
AF:
0.394
Gnomad AMR exome
AF:
0.202
Gnomad ASJ exome
AF:
0.0436
Gnomad EAS exome
AF:
0.229
Gnomad SAS exome
AF:
0.138
Gnomad FIN exome
AF:
0.0838
Gnomad NFE exome
AF:
0.0786
Gnomad OTH exome
AF:
0.101
GnomAD4 exome
AF:
0.0985
AC:
143879
AN:
1460602
Hom.:
9787
Cov.:
34
AF XY:
0.0978
AC XY:
71095
AN XY:
726722
show subpopulations
Gnomad4 AFR exome
AF:
0.402
Gnomad4 AMR exome
AF:
0.193
Gnomad4 ASJ exome
AF:
0.0446
Gnomad4 EAS exome
AF:
0.233
Gnomad4 SAS exome
AF:
0.136
Gnomad4 FIN exome
AF:
0.0856
Gnomad4 NFE exome
AF:
0.0787
Gnomad4 OTH exome
AF:
0.117
GnomAD4 genome
AF:
0.175
AC:
26564
AN:
152182
Hom.:
3778
Cov.:
32
AF XY:
0.173
AC XY:
12860
AN XY:
74398
show subpopulations
Gnomad4 AFR
AF:
0.383
Gnomad4 AMR
AF:
0.140
Gnomad4 ASJ
AF:
0.0395
Gnomad4 EAS
AF:
0.221
Gnomad4 SAS
AF:
0.150
Gnomad4 FIN
AF:
0.0786
Gnomad4 NFE
AF:
0.0784
Gnomad4 OTH
AF:
0.154
Alfa
AF:
0.101
Hom.:
396
Bravo
AF:
0.191
Asia WGS
AF:
0.227
AC:
791
AN:
3478

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxMay 12, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.46
CADD
Benign
5.3
DANN
Benign
0.66
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs6107100; hg19: chr20-2644685; COSMIC: COSV66484603; COSMIC: COSV66484603; API