NM_018718.3:c.422+7G>A

Variant names:

• chr7-130404557-C-T
• rs190680511
• NM_018718.3:c.422+7G>A

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_Strong BP6 BS1

The NM_018718.3(CEP41):​c.422+7G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000893 in 1,612,990 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.00028 (1 hom., cov: 32)
  • Exomes 𝑓: 0.000070 (0 hom.)
• Consequence: CEP41 NM_018718.3 splice_region, intron
• Scores: Splicing: ADA: 0.0001588
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:4
• Conservation: PhyloP100: -0.503
• Publications: 0 publications found

Genes affected

CEP41 (HGNC:12370): (centrosomal protein 41) This gene encodes a centrosomal and microtubule-binding protein which is predicted to have two coiled-coil domains and a rhodanese domain. In human retinal pigment epithelial cells the protein localized to centrioles and cilia. Mutations in this gene have been associated with Joubert Syndrome 15; an autosomal recessive ciliopathy and neurological disorder. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2012]

CEP41 Gene-Disease associations (from GenCC):

• Joubert syndrome 15

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• Joubert syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Joubert syndrome with ocular defect

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -9 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant 7-130404557-C-T is Benign according to our data. Variant chr7-130404557-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 390041.
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000276 (42/152208) while in subpopulation AFR AF = 0.000963 (40/41536). AF 95% confidence interval is 0.000726. There are 1 homozygotes in GnomAd4. There are 27 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018718.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CEP41	NM_018718.3	MANE Select	c.422+7G>A		splice_region intron	N/A	NP_061188.1
	CEP41	NM_001257158.2		c.422+7G>A		splice_region intron	N/A	NP_001244087.1
	CEP41	NM_001257159.2		c.374+7G>A		splice_region intron	N/A	NP_001244088.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CEP41	ENST00000223208.10	TSL:1 MANE Select	c.422+7G>A		splice_region intron	N/A	ENSP00000223208.4
	CEP41	ENST00000343969.10	TSL:1	c.422+7G>A		splice_region intron	N/A	ENSP00000342738.6
	CEP41	ENST00000484549.6	TSL:1	n.*594+7G>A		splice_region intron	N/A	ENSP00000419078.2

Frequencies

GnomAD3 genomes AF: 0.000243 AC: 37 AN: 152090 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000845

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000836 AC: 21 AN: 251290 AF XY: 0.0000589

Gnomad AFR exome AF: 0.000554

Gnomad AMR exome AF: 0.000260

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000264

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000698 AC: 102 AN: 1460782 Hom.: 0 Cov.: 30 AF XY: 0.0000660 AC XY: 48 AN XY: 726802

African (AFR) AF: 0.000747 AC: 25 AN: 33462

American (AMR) AF: 0.000268 AC: 12 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.000126 AC: 5 AN: 39688

South Asian (SAS) AF: 0.00 AC: 0 AN: 86242

European-Finnish (FIN) AF: 0.0000562 AC: 3 AN: 53408

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000468 AC: 52 AN: 1111012

Other (OTH) AF: 0.0000828 AC: 5 AN: 60350

GnomAD4 genome AF: 0.000276 AC: 42 AN: 152208 Hom.: 1 Cov.: 32 AF XY: 0.000363 AC XY: 27 AN XY: 74408

African (AFR) AF: 0.000963 AC: 40 AN: 41536

American (AMR) AF: 0.00 AC: 0 AN: 15294

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5182

South Asian (SAS) AF: 0.00 AC: 0 AN: 4816

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10584

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68014

Other (OTH) AF: 0.00 AC: 0 AN: 2106

Alfa AF: 0.000270 Hom.: 0

Bravo AF: 0.000257

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions as Germline

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	-	2	not specified (2)
-	-	1	CEP41-related disorder (1)
-	-	1	Joubert syndrome 15 (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	5.2
DANN	Benign	0.71
PhyloP100		-0.50

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00016
dbscSNV1_RF	Benign	0.018
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: rs190680511; hg19: chr7-130044398;