dbSNP rs145277867: OCRL:p.Gln809Gln (chrX-129588971-G-A) – 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_000276.4(OCRL):c.2427G>A(p.Gln809Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,210,146 control chromosomes in the GnomAD database, including 1 homozygotes. There are 2 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 0.000027 ( 1 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.0000027 ( 0 hom. 2 hem. )

Consequence

OCRL
NM_000276.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.67

Publications

0 publications found

Variant links:

Genes affected

OCRL (HGNC:8108): (OCRL inositol polyphosphate-5-phosphatase) This gene encodes an inositol polyphosphate 5-phosphatase. This protein is involved in regulating membrane trafficking and is located in numerous subcellular locations including the trans-Golgi network, clathrin-coated vesicles and, endosomes and the plasma membrane. This protein may also play a role in primary cilium formation. Mutations in this gene cause oculocerebrorenal syndrome of Lowe and also Dent disease. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

OCRL Gene-Disease associations (from GenCC):

Dent disease type 2
Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, G2P, Laboratory for Molecular Medicine, Orphanet, Labcorp Genetics (formerly Invitae)
oculocerebrorenal syndrome
Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P, ClinGen, Orphanet, Laboratory for Molecular Medicine

OCRL 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=-0.47).

BP6

Variant X-129588971-G-A is Benign according to our data. Variant chrX-129588971-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 527799.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=1.67 with no splicing effect.

BS2

High Hemizygotes in GnomAdExome4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
OCRL	NM_000276.4 link	c.2427G>A	p.Gln809Gln	synonymous_variant	Exon 22 of 24	ENST00000371113.9	NP_000267.2
OCRL	NM_001318784.2 link	c.2430G>A	p.Gln810Gln	synonymous_variant	Exon 22 of 24		NP_001305713.1
OCRL	NM_001587.4 link	c.2403G>A	p.Gln801Gln	synonymous_variant	Exon 21 of 23		NP_001578.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OCRL	ENST00000371113.9 link	c.2427G>A	p.Gln809Gln	synonymous_variant	Exon 22 of 24	1	NM_000276.4	ENSP00000360154.4
OCRL	ENST00000357121.5 link	c.2403G>A	p.Gln801Gln	synonymous_variant	Exon 21 of 23	1		ENSP00000349635.5

Frequencies

GnomAD3 genomes

AF:

0.0000267

AC:

AN:

112255

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000845

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000273

AC:

AN:

183067

AF XY:

0.0000444

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000361

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000273

AC:

AN:

1097836

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

363228

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

26392

American (AMR)

AF:

0.00

AC:

AN:

35204

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19383

East Asian (EAS)

AF:

0.0000993

AC:

AN:

30201

South Asian (SAS)

AF:

0.00

AC:

AN:

54139

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40501

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4091

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

841847

Other (OTH)

AF:

0.00

AC:

AN:

46078

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Hom

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

GnomAD4 genome

AF:

0.0000267

AC:

AN:

112310

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34468

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

30961

American (AMR)

AF:

0.00

AC:

AN:

10647

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2655

East Asian (EAS)

AF:

0.000848

AC:

AN:

3539

South Asian (SAS)

AF:

0.00

AC:

AN:

2704

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6130

Middle Eastern (MID)

AF:

0.00

AC:

AN:

218

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53240

Other (OTH)

AF:

0.00

AC:

AN:

1527

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000227

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Lowe syndrome

Benign:1

Nov 25, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.47

CADD

Benign

6.3

(source)

DANN

Benign

0.75

PhyloP100

1.7

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over