rs312262857

Positions:

• chrX-13749469-A-G
• chrX-13749469-A-T

Variant summary

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

The NM_003611.3(OFD1):​c.871A>G​(p.Lys291Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000919 in 1,088,173 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 9.2e-7 (0 hom. 1 hem.)
• Consequence: OFD1 NM_003611.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.33

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 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OFD1	NM_003611.3	c.871A>G	p.Lys291Glu	missense_variant	9/23	ENST00000340096.11	NP_003602.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OFD1	ENST00000340096.11	c.871A>G	p.Lys291Glu	missense_variant	9/23	1	NM_003611.3	ENSP00000344314.6

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD3 exomes AF: 0.00000546 AC: 1 AN: 183106 Hom.: 0 AF XY: 0.0000148 AC XY: 1 AN XY: 67720

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 SAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000625

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 9.19e-7 AC: 1 AN: 1088173 Hom.: 0 Cov.: 27 AF XY: 0.00000282 AC XY: 1 AN XY: 355079

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.0000247

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 23

ExAC AF: 0.0000165 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Pathogenic	0.25	D
BayesDel_noAF	Uncertain	0.13
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.25	T;.;.;T
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.73	T;T;T;T
M_CAP	Pathogenic	0.89	D
MetaRNN	Uncertain	0.59	D;D;D;D
MetaSVM	Pathogenic	1.0	D
MutationAssessor	Uncertain	2.5	M;.;M;.
PrimateAI	Uncertain	0.54	T
PROVEAN	Benign	-1.6	N;N;N;N
REVEL	Uncertain	0.42
Sift	Benign	0.14	T;T;T;D
Sift4G	Benign	0.27	T;T;T;T
Polyphen		1.0	D;D;D;.
Vest4		0.55
MutPred		0.22		Loss of ubiquitination at K291 (P = 0.0167);.;Loss of ubiquitination at K291 (P = 0.0167);.;
MVP		0.95
MPC		0.64
ClinPred		0.75	D
GERP RS		5.5
Varity_R		0.61
gMVP		0.34

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

Other links and lift over

dbSNP: rs312262857; hg19: chrX-13767588;