chr8-38146108-C-T

Position:

chr8-38146108-C-T

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PM1PM2PM5PP3_StrongPP5_Very_Strong

The ENST00000276449.9(STAR):c.505G>A(p.Glu169Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,814 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E169G) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

STAR
ENST00000276449.9 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 5.63

Variant links:

Genes affected

STAR (HGNC:11359): (steroidogenic acute regulatory protein) The protein encoded by this gene plays a key role in the acute regulation of steroid hormone synthesis by enhancing the conversion of cholesterol into pregnenolone. This protein permits the cleavage of cholesterol into pregnenolone by mediating the transport of cholesterol from the outer mitochondrial membrane to the inner mitochondrial membrane. Mutations in this gene are a cause of congenital lipoid adrenal hyperplasia (CLAH), also called lipoid CAH. A pseudogene of this gene is located on chromosome 13. [provided by RefSeq, Jul 2008]

STAR links:

STAR (HGNC:):

STAR links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PM1

In a chain Steroidogenic acute regulatory protein, mitochondrial (size 221) in uniprot entity STAR_HUMAN there are 24 pathogenic changes around while only 6 benign (80%) in ENST00000276449.9

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chrnull-null-null-null is described in UniProt as null.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.955

PP5

Variant 8-38146108-C-T is Pathogenic according to our data. Variant chr8-38146108-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 448533.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
STAR	NM_000349.3 linkuse as main transcript	c.505G>A	p.Glu169Lys	missense_variant	5/7	ENST00000276449.9	NP_000340.2	P49675Q6IBK0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
STAR	ENST00000276449.9 linkuse as main transcript	c.505G>A	p.Glu169Lys	missense_variant	5/7	1	NM_000349.3	ENSP00000276449.3	P49675
STAR	ENST00000522050.1 linkuse as main transcript	c.439G>A	p.Glu147Lys	missense_variant	4/5	5		ENSP00000429009.1	H0YB94
STAR	ENST00000520114.1 linkuse as main transcript	n.992G>A		non_coding_transcript_exon_variant	4/4	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251010

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135744

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461814

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727202

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

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.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Congenital lipoid adrenal hyperplasia due to STAR deficency

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Counsyl

Aug 25, 2017

- -

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Athena Diagnostics

Feb 01, 2017

- -

Syndactyly-telecanthus-anogenital and renal malformations syndrome

Pathogenic:1

Pathogenic, criteria provided, single submitter

curation

Laboratory of Medical Genetics, National & Kapodistrian University of Athens

Feb 01, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.94

BayesDel_addAF

Pathogenic

0.40

BayesDel_noAF

Pathogenic

0.34

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.71

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.96

M_CAP

Uncertain

0.19

MetaRNN

Pathogenic

0.95

MetaSVM

Uncertain

0.51

MutationAssessor

Uncertain

2.8

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-2.8

REVEL

Pathogenic

0.67

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0050

Polyphen

0.95

Vest4

0.88

MutPred

0.86

Gain of MoRF binding (P = 0.0214);

MVP

0.93

MPC

0.49

ClinPred

0.98

GERP RS

6.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.94

gMVP

0.91

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over