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GeneBe

chr12-45016471-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001004329.3(DBX2):ā€‹c.835A>Gā€‹(p.Ile279Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000169 in 1,613,796 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.00016 ( 0 hom., cov: 32)
Exomes š‘“: 0.00017 ( 1 hom. )

Consequence

DBX2
NM_001004329.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.214
Variant links:
Genes affected
DBX2 (HGNC:33186): (developing brain homeobox 2) Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be located in nucleus. Predicted to be part of chromatin. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.011704326).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DBX2NM_001004329.3 linkuse as main transcriptc.835A>G p.Ile279Val missense_variant 4/4 ENST00000332700.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DBX2ENST00000332700.6 linkuse as main transcriptc.835A>G p.Ile279Val missense_variant 4/42 NM_001004329.3 P1

Frequencies

GnomAD3 genomes
AF:
0.000164
AC:
25
AN:
152110
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
Gnomad ASJ
AF:
0.00231
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000155
AC:
39
AN:
251122
Hom.:
0
AF XY:
0.000184
AC XY:
25
AN XY:
135716
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000869
Gnomad ASJ exome
AF:
0.00209
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000968
Gnomad OTH exome
AF:
0.000653
GnomAD4 exome
AF:
0.000170
AC:
248
AN:
1461686
Hom.:
1
Cov.:
33
AF XY:
0.000184
AC XY:
134
AN XY:
727166
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.0000895
Gnomad4 ASJ exome
AF:
0.00241
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000132
Gnomad4 OTH exome
AF:
0.000265
GnomAD4 genome
AF:
0.000164
AC:
25
AN:
152110
Hom.:
0
Cov.:
32
AF XY:
0.000135
AC XY:
10
AN XY:
74304
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000393
Gnomad4 ASJ
AF:
0.00231
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000660
Hom.:
0
Bravo
AF:
0.000257
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000115
AC:
14
EpiCase
AF:
0.000273
EpiControl
AF:
0.0000593

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 GeneticsJan 22, 2024The c.835A>G (p.I279V) alteration is located in exon 4 (coding exon 4) of the DBX2 gene. This alteration results from a A to G substitution at nucleotide position 835, causing the isoleucine (I) at amino acid position 279 to be replaced by a valine (V). 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
0.063
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
0.37
DANN
Benign
0.27
DEOGEN2
Benign
0.0047
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.027
N
LIST_S2
Benign
0.52
T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.012
T
MetaSVM
Benign
-0.69
T
MutationAssessor
Benign
0.11
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.44
N
REVEL
Benign
0.16
Sift
Benign
0.59
T
Sift4G
Benign
0.38
T
Polyphen
0.0
B
Vest4
0.014
MVP
0.33
MPC
0.12
ClinPred
0.0078
T
GERP RS
-4.2
Varity_R
0.026
gMVP
0.18

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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: rs146666533; hg19: chr12-45410254; API