rs577045722

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1PP5_Moderate

The NM_000860.6(HPGD):​c.1A>T​(p.Met1?) variant causes a initiator codon change. The variant allele was found at a frequency of 0.00000444 in 1,575,694 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 Pathogenic (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000042 ( 0 hom. )

Consequence

HPGD
NM_000860.6 initiator_codon

Scores

6
7
3

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 6.01

Publications

5 publications found
Variant links:
Genes affected
HPGD (HGNC:5154): (15-hydroxyprostaglandin dehydrogenase) This gene encodes a member of the short-chain nonmetalloenzyme alcohol dehydrogenase protein family. The encoded enzyme is responsible for the metabolism of prostaglandins, which function in a variety of physiologic and cellular processes such as inflammation. Mutations in this gene result in primary autosomal recessive hypertrophic osteoarthropathy and cranioosteoarthropathy. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]
HPGD Gene-Disease associations (from GenCC):
  • hypertrophic osteoarthropathy, primary, autosomal recessive, 1
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • cranio-osteoarthropathy
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • pachydermoperiostosis
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • isolated congenital digital clubbing
    Inheritance: Unknown, AD, AR Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 10 ACMG points.

PVS1
Start lost variant, next in-frame start position is after 12 pathogenic variants. Next in-frame start position is after 122 codons. Genomic position: 174508753. Lost 0.454 part of the original CDS.
PP5
Variant 4-174522451-T-A is Pathogenic according to our data. Variant chr4-174522451-T-A is described in ClinVar as Pathogenic. ClinVar VariationId is 156026.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HPGDNM_000860.6 linkc.1A>T p.Met1? initiator_codon_variant Exon 1 of 7 ENST00000296522.11 NP_000851.2 P15428-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HPGDENST00000296522.11 linkc.1A>T p.Met1? initiator_codon_variant Exon 1 of 7 1 NM_000860.6 ENSP00000296522.6 P15428-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152110
Hom.:
0
Cov.:
32
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000551
AC:
1
AN:
181474
AF XY:
0.0000101
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000137
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000421
AC:
6
AN:
1423584
Hom.:
0
Cov.:
31
AF XY:
0.00000426
AC XY:
3
AN XY:
704832
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32736
American (AMR)
AF:
0.00
AC:
0
AN:
40202
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25476
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37992
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49078
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4142
European-Non Finnish (NFE)
AF:
0.00000549
AC:
6
AN:
1093450
Other (OTH)
AF:
0.00
AC:
0
AN:
58688
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152110
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74298
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5140
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68002
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000283
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000171
AC:
2

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hypertrophic osteoarthropathy, primary, autosomal recessive, 1 Pathogenic:1
Nov 01, 2009
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

not provided Pathogenic:1
Dec 01, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change affects the initiator methionine of the HPGD mRNA. The next in-frame methionine is located at codon 122. This variant is present in population databases (rs577045722, gnomAD 0.001%). Disruption of the initiator codon has been observed in individual(s) with primary hypertrophic osteoarthropathy (PMID: 19306095). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 156026). For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.42
D
BayesDel_noAF
Pathogenic
0.37
CADD
Pathogenic
26
DANN
Benign
0.97
DEOGEN2
Uncertain
0.48
T;.;.;.;.
Eigen
Uncertain
0.24
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.90
D;D;D;D;D
M_CAP
Pathogenic
0.88
D
MetaRNN
Pathogenic
0.99
D;D;D;D;D
MetaSVM
Uncertain
0.57
D
PhyloP100
6.0
PROVEAN
Uncertain
-2.4
N;D;D;D;D
REVEL
Pathogenic
0.74
Sift
Pathogenic
0.0
D;D;T;D;T
Sift4G
Benign
0.094
T;D;T;T;T
Polyphen
0.85
P;.;.;.;P
Vest4
0.80
MutPred
0.99
Loss of methylation at K6 (P = 0.0681);Loss of methylation at K6 (P = 0.0681);Loss of methylation at K6 (P = 0.0681);Loss of methylation at K6 (P = 0.0681);Loss of methylation at K6 (P = 0.0681);
MVP
0.83
ClinPred
0.95
D
GERP RS
5.0
PromoterAI
-0.20
Neutral
Varity_R
0.93
gMVP
0.55
Mutation Taster
=1/199
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs577045722; hg19: chr4-175443602; API