rs780521580

Variant names:

• chrX-13758388-G-A
• rs780521580
• NM_003611.3:c.1594G>A

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_Strong BP6_Moderate BS2_Supporting

The NM_003611.3(OFD1):​c.1594G>A​(p.Val532Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000365 in 1,095,304 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: not found (cov: 22)
  • Exomes 𝑓: 0.0000037 (0 hom. 2 hem.)
• Consequence: OFD1 NM_003611.3 missense
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.193
• Publications: 2 publications found

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

ACMG classification

Our verdict: Benign. The variant received -7 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.058545977).
• BP6: Variant X-13758388-G-A is Benign according to our data. Variant chrX-13758388-G-A is described in ClinVar as [Benign]. Clinvar id is 463449.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS2: High Hemizygotes in GnomAdExome4 at 2 XL,AD,AR geneVariant has number of hemizygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OFD1	NM_003611.3	c.1594G>A	p.Val532Ile	missense_variant	Exon 15 of 23	ENST00000340096.11	NP_003602.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OFD1	ENST00000340096.11	c.1594G>A	p.Val532Ile	missense_variant	Exon 15 of 23	1	NM_003611.3	ENSP00000344314.6

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD2 exomes AF: 0.0000109 AC: 2 AN: 183135 AF XY: 0.0000296

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000365 AC: 4 AN: 1095304 Hom.: 0 Cov.: 27 AF XY: 0.00000554 AC XY: 2 AN XY: 360838

African (AFR) AF: 0.00 AC: 0 AN: 26353

American (AMR) AF: 0.0000284 AC: 1 AN: 35198

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19370

East Asian (EAS) AF: 0.00 AC: 0 AN: 30181

South Asian (SAS) AF: 0.0000555 AC: 3 AN: 54043

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40508

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3906

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 839768

Other (OTH) AF: 0.00 AC: 0 AN: 45977

GnomAD4 genome Cov.: 22

ExAC AF: 0.0000165 AC: 2

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Joubert syndrome;C1510460:Orofaciodigital syndrome I Benign:1

Jun 26, 2017

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.074
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.43
CADD	Benign	0.18
DANN	Benign	0.85
DEOGEN2	Benign	0.11	T;.;.
FATHMM_MKL	Benign	0.11	N
LIST_S2	Benign	0.58	T;T;T
M_CAP	Benign	0.047	D
MetaRNN	Benign	0.059	T;T;T
MetaSVM	Uncertain	-0.20	T
MutationAssessor	Uncertain	2.0	M;.;.
PhyloP100		0.19
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-0.38	N;N;N
REVEL	Benign	0.075
Sift	Benign	0.18	T;T;T
Sift4G	Benign	0.50	T;T;T
Polyphen		0.010	B;B;B
Vest4		0.082
MutPred		0.19		Loss of MoRF binding (P = 0.1249);.;.;
MVP		0.76
MPC		0.12
ClinPred		0.022	T
GERP RS		0.41
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.033
gMVP		0.039
Mutation Taster		=92/8	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

Other links and lift over

dbSNP: rs780521580; hg19: chrX-13776507;