chr7-151148891-G-A

Variant summary

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

The NM_001098834.3(GBX1):​c.790C>T​(p.Arg264Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,880 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: 6.8e-7 ( 0 hom. )

Consequence

GBX1
NM_001098834.3 missense

Scores

11
6
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.837
Variant links:
Genes affected
GBX1 (HGNC:4185): (gastrulation brain homeobox 1) Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II transcription regulatory region sequence-specific DNA binding activity. Predicted to be involved in regulation of nervous system development and regulation of transcription by RNA polymerase II. Predicted to act upstream of or within adult walking behavior; neuron differentiation; and proprioception. Predicted to be part of chromatin. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

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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, 0.863

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GBX1NM_001098834.3 linkuse as main transcriptc.790C>T p.Arg264Cys missense_variant 2/2 ENST00000297537.5 NP_001092304.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GBX1ENST00000297537.5 linkuse as main transcriptc.790C>T p.Arg264Cys missense_variant 2/21 NM_001098834.3 ENSP00000297537 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461880
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727244
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 GeneticsNov 19, 2022The c.790C>T (p.R264C) alteration is located in exon 2 (coding exon 2) of the GBX1 gene. This alteration results from a C to T substitution at nucleotide position 790, causing the arginine (R) at amino acid position 264 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
0.96
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.26
CADD
Pathogenic
31
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.70
D
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.49
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Uncertain
0.97
D
M_CAP
Uncertain
0.22
D
MetaRNN
Pathogenic
0.86
D
MetaSVM
Pathogenic
0.92
D
MutationAssessor
Benign
1.8
L
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.91
D
PROVEAN
Pathogenic
-8.0
D
REVEL
Pathogenic
0.66
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.75
MutPred
0.33
Loss of MoRF binding (P = 0.0309);
MVP
0.94
MPC
2.1
ClinPred
1.0
D
GERP RS
4.9
Varity_R
0.90
gMVP
0.49

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: rs1801045008; hg19: chr7-150845978; COSMIC: COSV52547370; COSMIC: COSV52547370; API