rs67967266

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002156.5(HSPD1):c.551A>G(p.Asn184Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000546 in 1,613,192 control chromosomes in the GnomAD database, including 2 homozygotes. 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: 𝑓 0.00033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00057 ( 2 hom. )

Consequence

HSPD1
NM_002156.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.231

Publications

3 publications found

Variant links:

Genes affected

HSPD1 (HGNC:5261): (heat shock protein family D (Hsp60) member 1) This gene encodes a member of the chaperonin family. The encoded mitochondrial protein may function as a signaling molecule in the innate immune system. This protein is essential for the folding and assembly of newly imported proteins in the mitochondria. This gene is adjacent to a related family member and the region between the 2 genes functions as a bidirectional promoter. Several pseudogenes have been associated with this gene. Two transcript variants encoding the same protein have been identified for this gene. Mutations associated with this gene cause autosomal recessive spastic paraplegia 13. [provided by RefSeq, Jun 2010]

HSPD1 Gene-Disease associations (from GenCC):

hereditary spastic paraplegia 13
Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
hypomyelinating leukodystrophy 4
Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet, Ambry Genetics

HSPD1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.072764665).

BS2

High Homozygotes in GnomAdExome4 at 2 AR,AD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HSPD1	NM_002156.5 link	c.551A>G	p.Asn184Ser	missense_variant	Exon 5 of 12	ENST00000388968.8	NP_002147.2	P10809-1A0A024R3X4
HSPD1	NM_199440.2 link	c.551A>G	p.Asn184Ser	missense_variant	Exon 5 of 12		NP_955472.1	P10809-1A0A024R3X4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HSPD1	ENST00000388968.8 link	c.551A>G	p.Asn184Ser	missense_variant	Exon 5 of 12	1	NM_002156.5	ENSP00000373620.3		P10809-1

Frequencies

GnomAD3 genomes

AF:

0.000328

AC:

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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:

0.000500

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000469

AC:

118

AN:

251386

AF XY:

0.000500

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000549

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000844

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000568

AC:

830

AN:

1460952

Hom.:

Cov.:

AF XY:

0.000561

AC XY:

408

AN XY:

726862

show subpopulations

African (AFR)

AF:

0.0000897

AC:

AN:

33448

American (AMR)

AF:

0.000537

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26120

East Asian (EAS)

AF:

0.00

AC:

AN:

39632

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86236

European-Finnish (FIN)

AF:

0.0000374

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.000697

AC:

774

AN:

1111264

Other (OTH)

AF:

0.000431

AC:

AN:

60350

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.449

Heterozygous variant carriers

113

151

189

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

104

130

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000328

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.000336

AC XY:

AN XY:

74380

show subpopulations

African (AFR)

AF:

0.000193

AC:

AN:

41466

American (AMR)

AF:

0.000458

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5206

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000500

AC:

AN:

68030

Other (OTH)

AF:

0.000478

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000501

Hom.:

Bravo

AF:

0.000344

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000814

AC:

ExAC

AF:

0.000502

AC:

EpiCase

AF:

0.000600

EpiControl

AF:

0.000771

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Hereditary spastic paraplegia

Uncertain:2

Mar 01, 2020

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 07, 2017

Unit for Genetic & Epidemiological Research on Neurological Disorders, Instituto de Investigação e Inovação em Saúde

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:research

- -

Spastic paraplegia

Uncertain:1

Jan 19, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 184 of the HSPD1 protein (p.Asn184Ser). This variant is present in population databases (rs67967266, gnomAD 0.08%), and has an allele count higher than expected for a pathogenic variant. This missense change has been observed in individual(s) with clinical features of hereditary spastic paraplegia (PMID: 28832565). ClinVar contains an entry for this variant (Variation ID: 424666). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt HSPD1 protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change does not substantially affect HSPD1 function (PMID: 27630992). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.063

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.41

CADD

Benign

(source)

DANN

Benign

0.86

DEOGEN2

Uncertain

0.63

D;D;T;T

Eigen

Benign

-0.81

Eigen_PC

Benign

-0.75

FATHMM_MKL

Uncertain

0.80

LIST_S2

Benign

0.84

.;T;D;D

M_CAP

Benign

0.0070

MetaRNN

Benign

0.073

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.79

N;N;.;.

PhyloP100

0.23

PrimateAI

Benign

0.41

PROVEAN

Benign

-1.6

N;N;N;N

REVEL

Benign

0.15

Sift

Benign

0.21

T;T;T;T

Sift4G

Benign

0.26

T;T;.;T

Polyphen

0.0030

B;B;.;.

Vest4

0.16

MVP

0.40

MPC

0.53

ClinPred

0.015

GERP RS

-4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.13

gMVP

0.53

Mutation Taster

=93/7

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over