rs140561107

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_003611.3(OFD1):​c.1399C>A​(p.Arg467Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000644 in 1,086,657 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R467H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 22)
Exomes 𝑓: 0.0000064 ( 0 hom. 3 hem. )

Consequence

OFD1
NM_003611.3 missense

Scores

5
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.288

Publications

3 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: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0975897).
BS2
High Hemizygotes in GnomAdExome4 at 3 XL,AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OFD1NM_003611.3 linkc.1399C>A p.Arg467Ser missense_variant Exon 13 of 23 ENST00000340096.11 NP_003602.1 O75665-1E9KL37

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OFD1ENST00000340096.11 linkc.1399C>A p.Arg467Ser missense_variant Exon 13 of 23 1 NM_003611.3 ENSP00000344314.6 O75665-1

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD2 exomes
AF:
0.0000109
AC:
2
AN:
183024
AF XY:
0.0000148
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:
0.0000245
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000644
AC:
7
AN:
1086657
Hom.:
0
Cov.:
28
AF XY:
0.00000851
AC XY:
3
AN XY:
352615
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26185
American (AMR)
AF:
0.00
AC:
0
AN:
35168
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19306
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30156
South Asian (SAS)
AF:
0.00
AC:
0
AN:
53833
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40526
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4109
European-Non Finnish (NFE)
AF:
0.00000721
AC:
6
AN:
831653
Other (OTH)
AF:
0.0000219
AC:
1
AN:
45721
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome 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
GnomAD4 genome
Cov.:
22

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Joubert syndrome;C1510460:Orofaciodigital syndrome I Uncertain:1
Jul 05, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with serine, which is neutral and polar, at codon 467 of the OFD1 protein (p.Arg467Ser). This variant is present in population databases (no rsID available, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with OFD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 216573). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Primary ciliary dyskinesia Uncertain:1
Oct 27, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1399C>A (p.R467S) alteration is located in exon 13 (coding exon 13) of the OFD1 gene. This alteration results from a C to A substitution at nucleotide position 1399, causing the arginine (R) at amino acid position 467 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
0.0075
T
BayesDel_noAF
Benign
-0.18
CADD
Benign
2.2
DANN
Uncertain
0.97
DEOGEN2
Benign
0.22
T;.;.;T
FATHMM_MKL
Benign
0.21
N
LIST_S2
Benign
0.59
T;T;T;T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.098
T;T;T;T
MetaSVM
Uncertain
0.073
D
MutationAssessor
Benign
1.8
L;.;.;.
PhyloP100
0.29
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-1.6
N;N;N;.
REVEL
Uncertain
0.30
Sift
Benign
0.045
D;D;D;.
Sift4G
Uncertain
0.016
D;D;D;T
Polyphen
0.51
P;B;P;.
Vest4
0.18
MutPred
0.12
Loss of MoRF binding (P = 0.0404);.;.;.;
MVP
0.82
MPC
0.14
ClinPred
0.12
T
GERP RS
0.99
Varity_R
0.18
gMVP
0.050
Mutation Taster
=98/2
polymorphism

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

Other links and lift over

dbSNP: rs140561107; hg19: chrX-13774874; API