Genetic Variant HSDL1:p.Ala237Thr (chr16-84129733-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_031463.5(HSDL1):c.709G>A(p.Ala237Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

HSDL1
NM_031463.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.64

Variant links:

Genes affected

HSDL1 (HGNC:16475): (hydroxysteroid dehydrogenase like 1) Predicted to enable oxidoreductase activity. Located in intermediate filament cytoskeleton and mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

HSDL1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.30622458).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HSDL1	NM_031463.5 link	c.709G>A	p.Ala237Thr	missense_variant	Exon 5 of 6	ENST00000219439.9	NP_113651.4	Q3SXM5-1I6L975
HSDL1	NM_001146051.2 link	c.544G>A	p.Ala182Thr	missense_variant	Exon 6 of 7		NP_001139523.1	Q3SXM5-2I6L975
HSDL1	XM_005256189.4 link	c.709G>A	p.Ala237Thr	missense_variant	Exon 5 of 6		XP_005256246.1	Q3SXM5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HSDL1	ENST00000219439.9 link	c.709G>A	p.Ala237Thr	missense_variant	Exon 5 of 6	1	NM_031463.5	ENSP00000219439.4		Q3SXM5-1
HSDL1	ENST00000434463.7 link	c.544G>A	p.Ala182Thr	missense_variant	Exon 6 of 7	2		ENSP00000407437.3		Q3SXM5-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461862

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727234

show subpopulations

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:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 03, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.709G>A (p.A237T) alteration is located in exon 5 (coding exon 3) of the HSDL1 gene. This alteration results from a G to A substitution at nucleotide position 709, causing the alanine (A) at amino acid position 237 to be replaced by a threonine (T). 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

0.089

BayesDel_addAF

Uncertain

0.054

BayesDel_noAF

Benign

-0.16

CADD

Benign

DANN

Benign

0.80

DEOGEN2

Benign

0.25

T;.

Eigen

Benign

-0.36

Eigen_PC

Benign

-0.35

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.81

T;T

M_CAP

Uncertain

0.27

MetaRNN

Benign

0.31

T;T

MetaSVM

Uncertain

0.073

MutationAssessor

Pathogenic

3.0

M;.

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-1.7

N;N

REVEL

Uncertain

0.31

Sift

Benign

0.17

T;T

Sift4G

Benign

0.27

T;T

Polyphen

0.014

B;.

Vest4

0.25

MutPred

0.55

Loss of catalytic residue at A237 (P = 0.0749);.;

MVP

0.75

MPC

0.026

ClinPred

0.85

GERP RS

3.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.14

gMVP

0.49

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over