chr4-174493236-A-G

Position:

• chr4-174493236-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP5_Moderate

The NM_000860.6(HPGD):​c.577T>C​(p.Ser193Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,598 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: HPGD NM_000860.6 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 3.12

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 4-174493236-A-G is Pathogenic according to our data. Variant chr4-174493236-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 7920.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HPGD	NM_000860.6	c.577T>C	p.Ser193Pro	missense_variant	6/7	ENST00000296522.11	NP_000851.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HPGD	ENST00000296522.11	c.577T>C	p.Ser193Pro	missense_variant	6/7	1	NM_000860.6	ENSP00000296522	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460598 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 726642

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000232

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Revvity Omics, Revvity

Mar 14, 2022

- -

Isolated congenital digital clubbing Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Jan 01, 2009

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Pathogenic	0.33	D
BayesDel_noAF	Pathogenic	0.24
CADD	Benign	21
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.63	D;.;.;.;T;.
Eigen	Benign	0.11
Eigen_PC	Benign	0.17
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.87	D;D;.;D;T;T
M_CAP	Uncertain	0.15	D
MetaRNN	Uncertain	0.70	D;D;D;D;D;D
MetaSVM	Uncertain	0.034	D
MutationAssessor	Benign	1.3	L;.;.;.;.;.
MutationTaster	Benign	1.0	A;A;A;A;A;A
PrimateAI	Uncertain	0.50	T
PROVEAN	Uncertain	-2.7	D;N;N;D;D;D
REVEL	Uncertain	0.63
Sift	Uncertain	0.024	D;D;D;D;D;D
Sift4G	Benign	0.18	T;T;T;T;.;D
Polyphen		0.0020	B;.;.;.;.;.
Vest4		0.71
MutPred		0.54		Gain of ubiquitination at K196 (P = 0.0671);.;.;.;.;.;
MVP		0.83
MPC		0.15
ClinPred		0.97	D
GERP RS		4.5
Varity_R		0.93
gMVP		0.88

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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

Other links and lift over

dbSNP: rs121434481; hg19: chr4-175414387;