chr15-50286107-G-C

Variant summary

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

The NM_016654.5(GABPB1):ā€‹c.960C>Gā€‹(p.Ile320Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,718 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.9e-7 ( 0 hom. )

Consequence

GABPB1
NM_016654.5 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.456
Variant links:
Genes affected
GABPB1 (HGNC:4074): (GA binding protein transcription factor subunit beta 1) This gene encodes the GA-binding protein transcription factor, beta subunit. This protein forms a tetrameric complex with the alpha subunit, and stimulates transcription of target genes. The encoded protein may be involved in activation of cytochrome oxidase expression and nuclear control of mitochondrial function. The crystal structure of a similar protein in mouse has been resolved as a ternary protein complex. Multiple transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

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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=0.08221418).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GABPB1NM_016654.5 linkuse as main transcriptc.960C>G p.Ile320Met missense_variant 8/9 ENST00000380877.8 NP_057738.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GABPB1ENST00000380877.8 linkuse as main transcriptc.960C>G p.Ile320Met missense_variant 8/91 NM_016654.5 ENSP00000370259 P4Q06547-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1459718
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726210
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

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 GeneticsMay 18, 2022The c.996C>G (p.I332M) alteration is located in exon 8 (coding exon 7) of the GABPB1 gene. This alteration results from a C to G substitution at nucleotide position 996, causing the isoleucine (I) at amino acid position 332 to be replaced by a methionine (M). 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
Benign
0.067
BayesDel_addAF
Benign
-0.090
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
16
DANN
Benign
0.90
DEOGEN2
Benign
0.17
.;T;T;.;.;.;T
Eigen
Benign
-0.66
Eigen_PC
Benign
-0.50
FATHMM_MKL
Benign
0.74
D
LIST_S2
Benign
0.79
T;T;T;T;.;T;T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.082
T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.14
.;N;.;N;.;.;.
MutationTaster
Benign
0.55
D;D;D;D;N;N;N
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-0.69
N;N;N;N;N;N;N
REVEL
Benign
0.099
Sift
Benign
0.38
T;T;T;T;T;T;T
Sift4G
Benign
0.15
T;T;T;T;T;T;T
Polyphen
0.0070
B;B;.;B;B;B;.
Vest4
0.18
MVP
0.53
MPC
0.45
ClinPred
0.20
T
GERP RS
-1.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.056
gMVP
0.96

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs778242078; hg19: chr15-50578304; API