rs768452237

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_003611.3(OFD1):​c.2260+8A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000107 in 1,209,244 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 66 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.00011 ( 0 hom. 65 hem. )

Consequence

OFD1
NM_003611.3 splice_region, intron

Scores

2
Splicing: ADA: 0.0001176
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -0.0120

Publications

0 publications found
Variant links:
Genes affected
OFD1 (HGNC:2567): (OFD1 centriole and centriolar satellite protein) This gene is located on the X chromosome and encodes a centrosomal protein. A knockout mouse model has been used to study the effect of mutations in this gene. The mouse gene is also located on the X chromosome, however, unlike the human gene it is not subject to X inactivation. Mutations in this gene are associated with oral-facial-digital syndrome type I and Simpson-Golabi-Behmel syndrome type 2. Many pseudogenes have been identified; a single pseudogene is found on chromosome 5 while as many as fifteen have been found on the Y chromosome. [provided by RefSeq, Aug 2016]
OFD1 Gene-Disease associations (from GenCC):
  • ciliopathy
    Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
  • Joubert syndrome 10
    Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • orofaciodigital syndrome I
    Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae)
  • retinitis pigmentosa 23
    Inheritance: XL Classification: STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • primary ciliary dyskinesia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • retinitis pigmentosa
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • orofaciodigital syndrome type 6
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Simpson-Golabi-Behmel syndrome type 2
    Inheritance: XL Classification: LIMITED Submitted by: G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant X-13760728-A-G is Benign according to our data. Variant chrX-13760728-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 259097.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.000108 (118/1097529) while in subpopulation MID AF = 0.00193 (8/4135). AF 95% confidence interval is 0.000962. There are 0 homozygotes in GnomAdExome4. There are 65 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High Hemizygotes in GnomAdExome4 at 65 XL,AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OFD1NM_003611.3 linkc.2260+8A>G splice_region_variant, intron_variant Intron 16 of 22 ENST00000340096.11 NP_003602.1 O75665-1E9KL37

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OFD1ENST00000340096.11 linkc.2260+8A>G splice_region_variant, intron_variant Intron 16 of 22 1 NM_003611.3 ENSP00000344314.6 O75665-1

Frequencies

GnomAD3 genomes
AF:
0.0000985
AC:
11
AN:
111660
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000940
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000749
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00833
Gnomad NFE
AF:
0.000113
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000112
AC:
20
AN:
178254
AF XY:
0.000183
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000383
Gnomad OTH exome
AF:
0.000226
GnomAD4 exome
AF:
0.000108
AC:
118
AN:
1097529
Hom.:
0
Cov.:
31
AF XY:
0.000179
AC XY:
65
AN XY:
362927
show subpopulations
African (AFR)
AF:
0.0000758
AC:
2
AN:
26393
American (AMR)
AF:
0.00
AC:
0
AN:
35182
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19377
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30177
South Asian (SAS)
AF:
0.00102
AC:
55
AN:
53964
European-Finnish (FIN)
AF:
0.0000247
AC:
1
AN:
40408
Middle Eastern (MID)
AF:
0.00193
AC:
8
AN:
4135
European-Non Finnish (NFE)
AF:
0.0000546
AC:
46
AN:
841824
Other (OTH)
AF:
0.000130
AC:
6
AN:
46069
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.0000985
AC:
11
AN:
111715
Hom.:
0
Cov.:
23
AF XY:
0.0000295
AC XY:
1
AN XY:
33899
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30738
American (AMR)
AF:
0.0000939
AC:
1
AN:
10652
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2643
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3542
South Asian (SAS)
AF:
0.000751
AC:
2
AN:
2662
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6031
Middle Eastern (MID)
AF:
0.00913
AC:
2
AN:
219
European-Non Finnish (NFE)
AF:
0.000113
AC:
6
AN:
53039
Other (OTH)
AF:
0.00
AC:
0
AN:
1507
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
2
4
6
8
10
<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:
0.000142
Hom.:
1
Bravo
AF:
0.0000604

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
-
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 16, 2016
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:2
Jun 17, 2020
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

OFD1: BP4, BS2 -

Joubert syndrome;C1510460:Orofaciodigital syndrome I Benign:1
May 20, 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
-0.83
CADD
Benign
2.0
DANN
Benign
0.40
PhyloP100
-0.012
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00012
dbscSNV1_RF
Benign
0.0
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

Other links and lift over

dbSNP: rs768452237; hg19: chrX-13778847; API