chr13-27924568-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_000209.4(PDX1):​c.719C>A​(p.Pro240Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000198 in 1,515,732 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P240R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 7.3e-7 ( 0 hom. )

Consequence

PDX1
NM_000209.4 missense

Scores

2
2
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.580
Variant links:
Genes affected
PDX1 (HGNC:6107): (pancreatic and duodenal homeobox 1) The protein encoded by this gene is a transcriptional activator of several genes, including insulin, somatostatin, glucokinase, islet amyloid polypeptide, and glucose transporter type 2. The encoded nuclear protein is involved in the early development of the pancreas and plays a major role in glucose-dependent regulation of insulin gene expression. Defects in this gene are a cause of pancreatic agenesis, which can lead to early-onset insulin-dependent diabetes mellitus (IDDM), as well as maturity onset diabetes of the young type 4 (MODY4). [provided by RefSeq, Aug 2017]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.36146277).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PDX1NM_000209.4 linkuse as main transcriptc.719C>A p.Pro240Gln missense_variant 2/2 ENST00000381033.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PDX1ENST00000381033.5 linkuse as main transcriptc.719C>A p.Pro240Gln missense_variant 2/21 NM_000209.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152066
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
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
GnomAD4 exome
AF:
7.33e-7
AC:
1
AN:
1363666
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
671876
show subpopulations
Gnomad4 AFR exome
AF:
0.0000347
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152066
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74268
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000208
AC:
2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.085
BayesDel_addAF
Benign
-0.013
T
BayesDel_noAF
Benign
-0.26
CADD
Benign
14
DANN
Uncertain
0.98
DEOGEN2
Benign
0.31
T
Eigen
Benign
-0.79
Eigen_PC
Benign
-0.77
FATHMM_MKL
Benign
0.51
D
LIST_S2
Benign
0.50
T
M_CAP
Pathogenic
0.87
D
MetaRNN
Benign
0.36
T
MetaSVM
Benign
-0.57
T
MutationAssessor
Benign
1.1
L
MutationTaster
Benign
0.99
N
PrimateAI
Pathogenic
0.79
T
PROVEAN
Benign
0.26
N
REVEL
Benign
0.15
Sift
Uncertain
0.020
D
Sift4G
Benign
0.40
T
Polyphen
0.43
B
Vest4
0.25
MutPred
0.42
Gain of catalytic residue at P241 (P = 0);
MVP
0.56
MPC
0.97
ClinPred
0.26
T
GERP RS
3.0
Varity_R
0.045
gMVP
0.48

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: rs753881947; hg19: chr13-28498705; COSMIC: COSV66847145; API