Genetic Variant NM_006804.4:c.177C>T (chr17-39653708-C-T) – ACMG Classification: Benign (-11 pts)

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_006804.4(STARD3):c.177C>T(p.Phe59Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0011 in 1,614,220 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0010 ( 1 hom., cov: 33)

Exomes 𝑓: 0.0011 ( 8 hom. )

Consequence

STARD3
NM_006804.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0700

Publications

0 publications found

Variant links:

Genes affected

STARD3 (HGNC:17579): (StAR related lipid transfer domain containing 3) This gene encodes a member of a subfamily of lipid trafficking proteins that are characterized by a C-terminal steroidogenic acute regulatory domain and an N-terminal metastatic lymph node 64 domain. The encoded protein localizes to the membranes of late endosomes and may be involved in exporting cholesterol. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Oct 2009]

STARD3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.49).

BP6

Variant 17-39653708-C-T is Benign according to our data. Variant chr17-39653708-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2647718.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-0.07 with no splicing effect.

BS2

High Homozygotes in GnomAdExome4 at 8 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STARD3	NM_006804.4 link	c.177C>T	p.Phe59Phe	synonymous_variant	Exon 2 of 15	ENST00000336308.10	NP_006795.3	Q14849-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STARD3	ENST00000336308.10 link	c.177C>T	p.Phe59Phe	synonymous_variant	Exon 2 of 15	1	NM_006804.4	ENSP00000337446.5		Q14849-1

Frequencies

GnomAD3 genomes

AF:

0.00106

AC:

161

AN:

152256

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

Gnomad ASJ

AF:

0.00202

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00228

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.0190

Gnomad NFE

AF:

0.00169

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.00148

AC:

372

AN:

251200

AF XY:

0.00171

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00124

Gnomad ASJ exome

AF:

0.00397

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.00171

Gnomad OTH exome

AF:

0.00245

GnomAD4 exome

AF:

0.00110

AC:

1614

AN:

1461846

Hom.:

Cov.:

AF XY:

0.00117

AC XY:

852

AN XY:

727230

show subpopulations

African (AFR)

AF:

0.000149

AC:

AN:

33480

American (AMR)

AF:

0.00123

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00310

AC:

AN:

26134

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39700

South Asian (SAS)

AF:

0.00234

AC:

202

AN:

86258

European-Finnish (FIN)

AF:

0.0000375

AC:

AN:

53388

Middle Eastern (MID)

AF:

0.0101

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000987

AC:

1098

AN:

1112002

Other (OTH)

AF:

0.00184

AC:

111

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

113

226

339

452

565

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00104

AC:

159

AN:

152374

Hom.:

Cov.:

AF XY:

0.00111

AC XY:

AN XY:

74508

show subpopulations

African (AFR)

AF:

0.000192

AC:

AN:

41592

American (AMR)

AF:

0.000653

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00202

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00207

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.0000941

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.0170

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00169

AC:

115

AN:

68038

Other (OTH)

AF:

0.00142

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00152

Hom.:

Bravo

AF:

0.00105

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.00322

EpiControl

AF:

0.00326

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Apr 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

STARD3: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.49

CADD

Benign

(source)

DANN

Benign

0.88

PhyloP100

-0.070

Mutation Taster

=92/8

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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NM_006804.4:c.177C>T

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