1-162797812-C-A

Variant names:

• chr1-162797812-C-A
• NM_016371.4:c.343C>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_016371.4(HSD17B7):​c.343C>A​(p.His115Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: HSD17B7 NM_016371.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.84
• Publications: 0 publications found

Genes affected

HSD17B7 (HGNC:5215): (hydroxysteroid 17-beta dehydrogenase 7) HSD17B7 encodes an enzyme that functions both as a 17-beta-hydroxysteroid dehydrogenase (EC 1.1.1.62) in the biosynthesis of sex steroids and as a 3-ketosteroid reductase (EC 1.1.1.270) in the biosynthesis of cholesterol (Marijanovic et al., 2003 [PubMed 12829805]).[supplied by OMIM, May 2010]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15221378).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016371.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HSD17B7	NM_016371.4	MANE Select	c.343C>A	p.His115Asn	missense	Exon 4 of 9	NP_057455.1	P56937-1
	HSD17B7	NM_001304512.2		c.343C>A	p.His115Asn	missense	Exon 4 of 4	NP_001291441.1
	HSD17B7	NM_001304513.2		c.333-16C>A		intron	N/A	NP_001291442.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HSD17B7	ENST00000254521.8	TSL:1 MANE Select	c.343C>A	p.His115Asn	missense	Exon 4 of 9	ENSP00000254521.3	P56937-1
	HSD17B7	ENST00000902168.1		c.370C>A	p.His124Asn	missense	Exon 4 of 9	ENSP00000572227.1
	HSD17B7	ENST00000963897.1		c.343C>A	p.His115Asn	missense	Exon 4 of 9	ENSP00000633956.1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 6.85e-7 AC: 1 AN: 1459774 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 726094

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33374

American (AMR) AF: 0.00 AC: 0 AN: 44374

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26026

East Asian (EAS) AF: 0.00 AC: 0 AN: 39680

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 85910

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53388

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5754

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1110960

Other (OTH) AF: 0.00 AC: 0 AN: 60308

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 30

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.088
BayesDel_addAF	Benign	-0.089	T
BayesDel_noAF	Benign	-0.37
CADD	Benign	19
DANN	Benign	0.93
DEOGEN2	Benign	0.27	T
Eigen	Benign	-0.21
Eigen_PC	Benign	-0.017
FATHMM_MKL	Benign	0.73	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-0.70	T
MutationAssessor	Benign	0.23	N
PhyloP100		2.8
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.20
Sift	Benign	0.44	T
Sift4G	Benign	0.62	T
Polyphen		0.010	B
Vest4		0.30
MutPred		0.52		Gain of MoRF binding (P = 0.1281)
MVP		0.71
MPC		0.53
ClinPred		0.26	T
GERP RS		4.7
Varity_R		0.15
gMVP		0.36
Mutation Taster		=81/19	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.13		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

hg19: chr1-162767602;