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GeneBe

1-213997883-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 1P and 1B. PP2BP4

The NM_001270616.2(PROX1):c.1348C>A(p.Gln450Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000682 in 1,612,516 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. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

PROX1
NM_001270616.2 missense

Scores

1
2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.58
Variant links:
Genes affected
PROX1 (HGNC:9459): (prospero homeobox 1) The protein encoded by this gene is a member of the homeobox transcription factor family. Members of this family contain a homeobox domain that consists of a 60-amino acid helix-turn-helix structure that binds DNA and RNA. The protein encoded by this gene is conserved across vertebrates and may play an essential role during development. Altered levels of this protein have been reported in cancers of different organs, such as colon, brain, blood, breast, pancreas, liver and esophagus. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PP2
Missense variant where missense usually causes diseases, PROX1
BP4
Computational evidence support a benign effect (MetaRNN=0.2868097).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PROX1NM_001270616.2 linkuse as main transcriptc.1348C>A p.Gln450Lys missense_variant 2/5 ENST00000366958.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PROX1ENST00000366958.9 linkuse as main transcriptc.1348C>A p.Gln450Lys missense_variant 2/51 NM_001270616.2 P1
PROX1ENST00000435016.2 linkuse as main transcriptc.1348C>A p.Gln450Lys missense_variant 2/51 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152266
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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
GnomAD3 exomes
AF:
0.0000161
AC:
4
AN:
249156
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134550
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.00000685
AC:
10
AN:
1460132
Hom.:
0
Cov.:
31
AF XY:
0.00000689
AC XY:
5
AN XY:
726202
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000112
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:
0.00000360
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000656
AC:
1
AN:
152384
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74522
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000653
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:
0.0000227

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 GeneticsAug 30, 2022The c.1348C>A (p.Q450K) alteration is located in exon 2 (coding exon 1) of the PROX1 gene. This alteration results from a C to A substitution at nucleotide position 1348, causing the glutamine (Q) at amino acid position 450 to be replaced by a lysine (K). 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
0.18
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.22
Cadd
Benign
22
Dann
Benign
0.90
DEOGEN2
Benign
0.20
T;T;T;T
Eigen
Benign
0.070
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Pathogenic
0.99
D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.29
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.6
L;L;L;L
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-0.53
N;N;N;N
REVEL
Benign
0.11
Sift
Benign
0.87
T;T;T;T
Sift4G
Benign
0.90
T;T;T;T
Polyphen
0.022
B;B;B;B
Vest4
0.64
MVP
0.85
MPC
0.91
ClinPred
0.11
T
GERP RS
5.7
Varity_R
0.19
gMVP
0.28

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: rs201989339; hg19: chr1-214171226; COSMIC: COSV99800337; COSMIC: COSV99800337; API