rs1554068269

Positions:

• chr5-119525929-C-G
• chr5-119525929-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2 PM5 PP3_Strong

The NM_000414.4(HSD17B4):​c.1586C>G​(p.Pro529Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000138 in 1,450,456 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. P529L) has been classified as Pathogenic.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: HSD17B4 NM_000414.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.83

Genes affected

HSD17B4 (HGNC:5213): (hydroxysteroid 17-beta dehydrogenase 4) The protein encoded by this gene is a bifunctional enzyme that is involved in the peroxisomal beta-oxidation pathway for fatty acids. It also acts as a catalyst for the formation of 3-ketoacyl-CoA intermediates from both straight-chain and 2-methyl-branched-chain fatty acids. Defects in this gene that affect the peroxisomal fatty acid beta-oxidation activity are a cause of D-bifunctional protein deficiency (DBPD). An apparent pseudogene of this gene is present on chromosome 8. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, May 2014]

HSD17B4 (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr5-119525929-C-T is described in Lovd as [Pathogenic].
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.987

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HSD17B4	NM_000414.4	c.1586C>G	p.Pro529Arg	missense_variant	19/24	ENST00000510025.7	NP_000405.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HSD17B4	ENST00000510025.7	c.1586C>G	p.Pro529Arg	missense_variant	19/24	2	NM_000414.4	ENSP00000424940.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1450456 Hom.: 0 Cov.: 28 AF XY: 0.00000277 AC XY: 2 AN XY: 722584

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000182

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Pathogenic	0.41	D
BayesDel_noAF	Pathogenic	0.36
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Benign	0.39	T;.;T;.;.;.;T;.;T;.;.
Eigen	Pathogenic	0.88
Eigen_PC	Pathogenic	0.80
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	1.0	.;D;D;.;D;D;D;D;D;D;D
M_CAP	Uncertain	0.26	D
MetaRNN	Pathogenic	0.99	D;D;D;D;D;D;D;D;D;D;D
MetaSVM	Uncertain	0.70	D
MutationAssessor	Uncertain	2.6	M;.;M;.;.;.;.;.;.;.;.
PrimateAI	Uncertain	0.61	T
PROVEAN	Pathogenic	-8.6	D;D;.;.;D;.;.;.;D;D;.
REVEL	Pathogenic	0.92
Sift	Pathogenic	0.0	D;D;.;.;D;.;.;.;D;D;.
Sift4G	Pathogenic	0.0	D;D;.;.;D;.;.;.;D;D;.
Polyphen		1.0	D;.;D;.;.;.;D;.;.;D;.
Vest4		0.91
MutPred		0.95		Gain of MoRF binding (P = 0.043);.;Gain of MoRF binding (P = 0.043);.;.;Gain of MoRF binding (P = 0.043);.;.;.;.;.;
MVP		0.94
MPC		0.39
ClinPred		1.0	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.97
gMVP		0.89

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

Other links and lift over

dbSNP: rs1554068269; hg19: chr5-118861624;