X-13735273-T-G

Position:

• chrX-13735273-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_003611.3(OFD1):​c.38T>G​(p.Val13Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 24)
• Consequence: OFD1 NM_003611.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.536

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 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.08132893).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OFD1	NM_003611.3	c.38T>G	p.Val13Gly	missense_variant	2/23	ENST00000340096.11	NP_003602.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OFD1	ENST00000340096.11	c.38T>G	p.Val13Gly	missense_variant	2/23	1	NM_003611.3	ENSP00000344314.6

Frequencies

GnomAD3 genomes Cov.: 24

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 24

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

OFD1-related disorder Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Aug 08, 2023

The OFD1 c.38T>G variant is predicted to result in the amino acid substitution p.Val13Gly. To our knowledge, this variant has not been reported in the literature or in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	0.0029	T
BayesDel_noAF	Benign	-0.23
CADD	Benign	18
DANN	Benign	0.90
DEOGEN2	Benign	0.14	T;.
FATHMM_MKL	Benign	0.18	N
LIST_S2	Benign	0.51	T;T
M_CAP	Pathogenic	0.39	D
MetaRNN	Benign	0.081	T;T
MetaSVM	Uncertain	-0.071	T
MutationAssessor	Benign	1.7	L;L
PrimateAI	Benign	0.34	T
PROVEAN	Benign	-1.5	N;N
REVEL	Benign	0.19
Sift	Benign	0.15	T;T
Sift4G	Benign	0.14	T;T
Polyphen		0.028	B;B
Vest4		0.13
MutPred		0.30		Loss of stability (P = 0.0294);Loss of stability (P = 0.0294);
MVP		0.73
MPC		0.23
ClinPred		0.052	T
GERP RS		2.2
Varity_R		0.17
gMVP		0.45

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

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-13753392;