1-46511089-C-T

Variant summary

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

The NM_172225.2(DMBX1):​c.488C>T​(p.Pro163Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000743 in 1,614,030 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

DMBX1
NM_172225.2 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.35
Variant links:
Genes affected
DMBX1 (HGNC:19026): (diencephalon/mesencephalon homeobox 1) This gene encodes a member of the bicoid sub-family of homeodomain-containing transcription factors. The encoded protein acts as a transcription factor and may play a role in brain and sensory organ development. Two transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

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=0.033803523).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DMBX1NM_172225.2 linkuse as main transcriptc.488C>T p.Pro163Leu missense_variant 5/6 ENST00000360032.4
DMBX1NM_001387776.1 linkuse as main transcriptc.503C>T p.Pro168Leu missense_variant 4/5
DMBX1NM_147192.4 linkuse as main transcriptc.503C>T p.Pro168Leu missense_variant 5/6
DMBX1NM_001387775.1 linkuse as main transcriptc.488C>T p.Pro163Leu missense_variant 4/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DMBX1ENST00000360032.4 linkuse as main transcriptc.488C>T p.Pro163Leu missense_variant 5/61 NM_172225.2 P1Q8NFW5-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152256
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000399
AC:
10
AN:
250602
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135564
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000545
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461774
Hom.:
0
Cov.:
32
AF XY:
0.00000413
AC XY:
3
AN XY:
727202
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000202
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152256
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74388
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.0000330
AC:
4

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 GeneticsSep 14, 2023The c.503C>T (p.P168L) alteration is located in exon 3 (coding exon 3) of the DMBX1 gene. This alteration results from a C to T substitution at nucleotide position 503, causing the proline (P) at amino acid position 168 to be replaced by a leucine (L). 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
0.065
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
16
DANN
Benign
0.65
DEOGEN2
Benign
0.27
T;.
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.53
FATHMM_MKL
Benign
0.075
N
LIST_S2
Benign
0.73
T;T
M_CAP
Benign
0.084
D
MetaRNN
Benign
0.034
T;T
MetaSVM
Benign
-0.37
T
MutationAssessor
Benign
-0.34
N;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.74
N;N
REVEL
Benign
0.19
Sift
Benign
0.065
T;T
Sift4G
Benign
0.45
T;T
Polyphen
0.0020
B;B
Vest4
0.075
MutPred
0.27
Loss of catalytic residue at P167 (P = 0.0191);.;
MVP
0.48
MPC
0.36
ClinPred
0.032
T
GERP RS
3.9
Varity_R
0.061
gMVP
0.59

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: rs753300142; hg19: chr1-46976761; COSMIC: COSV63602670; API