chr10-100529505-G-A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_005004.4(NDUFB8):​c.87C>T​(p.Ala29Ala) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,459,480 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A29A) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

NDUFB8
NM_005004.4 splice_region, synonymous

Scores

2
Splicing: ADA: 0.00001946
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.242

Publications

0 publications found
Variant links:
Genes affected
NDUFB8 (HGNC:7703): (NADH:ubiquinone oxidoreductase subunit B8) Involved in mitochondrial respiratory chain complex I assembly. Located in endoplasmic reticulum and mitochondrion. Part of mitochondrial respiratory chain complex I. Implicated in nuclear type mitochondrial complex I deficiency 32. Biomarker of Alzheimer's disease and Parkinson's disease. [provided by Alliance of Genome Resources, Apr 2022]
HIF1AN (HGNC:17113): (hypoxia inducible factor 1 subunit alpha inhibitor) Enables several functions, including 2-oxoglutarate-dependent dioxygenase activity; NF-kappaB binding activity; and transition metal ion binding activity. Involved in several processes, including negative regulation of Notch signaling pathway; negative regulation of transcription from RNA polymerase II promoter in response to hypoxia; and protein hydroxylation. Located in cytosol; nucleoplasm; and perinuclear region of cytoplasm. Colocalizes with nucleus. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.64).
BP7
Synonymous conserved (PhyloP=0.242 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005004.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NDUFB8
NM_005004.4
MANE Select
c.87C>Tp.Ala29Ala
splice_region synonymous
Exon 2 of 5NP_004995.1O95169-1
NDUFB8
NM_001284368.1
c.-7C>T
splice_region
Exon 2 of 5NP_001271297.1O95169-3
NDUFB8
NM_001284367.2
c.87C>Tp.Ala29Ala
splice_region synonymous
Exon 2 of 5NP_001271296.1O95169-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NDUFB8
ENST00000299166.9
TSL:1 MANE Select
c.87C>Tp.Ala29Ala
splice_region synonymous
Exon 2 of 5ENSP00000299166.4O95169-1
ENSG00000255339
ENST00000557395.5
TSL:2
n.87C>T
splice_region non_coding_transcript_exon
Exon 2 of 10ENSP00000456832.1
NDUFB8
ENST00000370322.5
TSL:2
c.-7C>T
splice_region
Exon 2 of 5ENSP00000359346.1O95169-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000806
AC:
2
AN:
248116
AF XY:
0.00000744
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1459480
Hom.:
0
Cov.:
32
AF XY:
0.00000413
AC XY:
3
AN XY:
726206
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33280
American (AMR)
AF:
0.00
AC:
0
AN:
43590
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26012
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39674
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86088
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53400
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5750
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1111406
Other (OTH)
AF:
0.00
AC:
0
AN:
60280
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
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

Exome 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
GnomAD4 genome
Cov.:
32
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.64
CADD
Benign
7.6
DANN
Benign
0.80
PhyloP100
0.24
PromoterAI
-0.029
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Mutation Taster
=76/24
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000019
dbscSNV1_RF
Benign
0.0
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: rs781076920; hg19: chr10-102289262; API