Genetic Variant STEEP1:p.Ala210Ala (chrX-119539766-C-T) – ACMG Classification: Benign (-9 pts)

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_ModerateBP6_ModerateBP7BS2

The NM_022101.4(STEEP1):c.630G>A(p.Ala210Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000572 in 1,205,943 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 23 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000054 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.000058 ( 0 hom. 23 hem. )

Consequence

STEEP1
NM_022101.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.18

Variant links:

Genes affected

STEEP1 (HGNC:26239): (STING1 ER exit protein 1) While this gene is well-supported by transcript data, no functional information on its protein products is currently available. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2009]

STEEP1 links:

UBE2A (HGNC:12472): (ubiquitin conjugating enzyme E2 A) The modification of proteins with ubiquitin is an important cellular mechanism for targeting abnormal or short-lived proteins for degradation. Ubiquitination involves at least three classes of enzymes: ubiquitin-activating enzymes, ubiquitin-conjugating enzymes, and ubiquitin-protein ligases. This gene encodes a member of the E2 ubiquitin-conjugating enzyme family. This enzyme is required for post-replicative DNA damage repair, and may play a role in transcriptional regulation. Mutations in this gene are associated with cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]

UBE2A links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.29).

BP6

Variant X-119539766-C-T is Benign according to our data. Variant chrX-119539766-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3257093.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-1.17 with no splicing effect.

BS2

High Hemizygotes in GnomAdExome4 at 23 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STEEP1	NM_022101.4 link	c.630G>A	p.Ala210Ala	synonymous_variant	Exon 7 of 7	ENST00000644802.2	NP_071384.1	Q9H5V9-1
STEEP1	NM_001170570.2 link	c.588G>A	p.Ala196Ala	synonymous_variant	Exon 6 of 6		NP_001164041.1	Q9H5V9-3
STEEP1	NM_001170569.1 link	c.483G>A	p.Ala161Ala	synonymous_variant	Exon 7 of 7		NP_001164040.1	Q9H5V9-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STEEP1	ENST00000644802.2 link	c.630G>A	p.Ala210Ala	synonymous_variant	Exon 7 of 7		NM_022101.4	ENSP00000494123.2		Q9H5V9-1

Frequencies

GnomAD3 genomes

AF:

0.0000542

AC:

AN:

110781

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

32975

show subpopulations

Gnomad AFR

AF:

0.0000329

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000944

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000219

AC:

AN:

182647

Hom.:

AF XY:

0.0000149

AC XY:

AN XY:

67173

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:

0.0000528

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000368

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000575

AC:

AN:

1095162

Hom.:

Cov.:

AF XY:

0.0000638

AC XY:

AN XY:

360594

show subpopulations

Gnomad4 AFR exome

AF:

0.0000379

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000185

Gnomad4 FIN exome

AF:

0.0000494

Gnomad4 NFE exome

AF:

0.0000679

Gnomad4 OTH exome

AF:

0.0000435

GnomAD4 genome

AF:

0.0000542

AC:

AN:

110781

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

32975

show subpopulations

Gnomad4 AFR

AF:

0.0000329

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000944

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000130

Hom.:

Bravo

AF:

0.0000529

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Jul 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

STEEP1: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.29

CADD

Benign

0.50

DANN

Benign

0.72

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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

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