X-13735254-A-G

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_003611.3(OFD1):ā€‹c.19A>Gā€‹(p.Met7Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000638 in 1,097,222 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 24)
Exomes š‘“: 0.0000064 ( 0 hom. 4 hem. )

Consequence

OFD1
NM_003611.3 missense

Scores

3
5
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.93
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.3659956).
BS2
High Hemizygotes in GnomAdExome4 at 4 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OFD1NM_003611.3 linkc.19A>G p.Met7Val missense_variant Exon 2 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.19A>G p.Met7Val missense_variant Exon 2 of 23 1 NM_003611.3 ENSP00000344314.6 O75665-1

Frequencies

GnomAD3 genomes
Cov.:
24
GnomAD3 exomes
AF:
0.0000109
AC:
2
AN:
183531
Hom.:
0
AF XY:
0.0000294
AC XY:
2
AN XY:
67957
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000365
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000524
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000638
AC:
7
AN:
1097222
Hom.:
0
Cov.:
29
AF XY:
0.0000110
AC XY:
4
AN XY:
362592
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000284
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000662
Gnomad4 SAS exome
AF:
0.0000554
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000119
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
24

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Familial aplasia of the vermis;C1510460:Orofaciodigital syndrome I Uncertain:1
Jan 06, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 7 of the OFD1 protein (p.Met7Val). This variant is present in population databases (no rsID available, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with OFD1-related conditions. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.085
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Uncertain
0.090
CADD
Benign
16
DANN
Benign
0.89
DEOGEN2
Benign
0.39
T;.
FATHMM_MKL
Benign
0.58
D
LIST_S2
Benign
0.68
T;T
M_CAP
Pathogenic
0.60
D
MetaRNN
Benign
0.37
T;T
MetaSVM
Uncertain
0.40
D
MutationAssessor
Uncertain
2.5
M;M
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-1.8
N;N
REVEL
Uncertain
0.50
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.74
P;P
Vest4
0.32
MutPred
0.25
Loss of stability (P = 0.0759);Loss of stability (P = 0.0759);
MVP
0.93
MPC
0.31
ClinPred
0.71
D
GERP RS
3.9
Varity_R
0.85
gMVP
0.75

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.

Other links and lift over

dbSNP: rs1282930647; hg19: chrX-13753373; API