chr12-88131209-G-C

Variant names:

• chr12-88131209-G-C
• rs757641323
• NM_025114.4:c.451C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_025114.4(CEP290):​c.451C>G​(p.Arg151Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000744 in 1,343,960 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R151Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.4e-7 (0 hom.)
• Consequence: CEP290 NM_025114.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.86
• Publications: 0 publications found

Genes affected

CEP290 (HGNC:29021): (centrosomal protein 290) This gene encodes a protein with 13 putative coiled-coil domains, a region with homology to SMC chromosome segregation ATPases, six KID motifs, three tropomyosin homology domains and an ATP/GTP binding site motif A. The protein is localized to the centrosome and cilia and has sites for N-glycosylation, tyrosine sulfation, phosphorylation, N-myristoylation, and amidation. Mutations in this gene have been associated with Joubert syndrome and nephronophthisis and the presence of antibodies against this protein is associated with several forms of cancer. [provided by RefSeq, Jul 2008]

CEP290 Gene-Disease associations (from GenCC):

• CEP290-related ciliopathy

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• Joubert syndrome 5

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• Bardet-Biedl syndrome 14

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• Leber congenital amaurosis 10

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• Leber congenital amaurosis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Bardet-Biedl syndrome

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

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Meckel syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• Senior-Loken syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_025114.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CEP290	NM_025114.4	MANE Select	c.451C>G	p.Arg151Gly	missense	Exon 7 of 54	NP_079390.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CEP290	ENST00000552810.6	TSL:1 MANE Select	c.451C>G	p.Arg151Gly	missense	Exon 7 of 54	ENSP00000448012.1
	CEP290	ENST00000547926.7	TSL:1	n.451C>G		non_coding_transcript_exon	Exon 7 of 21	ENSP00000448573.3
	CEP290	ENST00000675476.1		c.451C>G	p.Arg151Gly	missense	Exon 7 of 56	ENSP00000502161.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.44e-7 AC: 1 AN: 1343960 Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0 AN XY: 662596

African (AFR) AF: 0.00 AC: 0 AN: 27256

American (AMR) AF: 0.00 AC: 0 AN: 23408

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 22966

East Asian (EAS) AF: 0.00 AC: 0 AN: 33248

South Asian (SAS) AF: 0.0000150 AC: 1 AN: 66872

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49078

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5330

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1060324

Other (OTH) AF: 0.00 AC: 0 AN: 55478

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.59
BayesDel_addAF	Pathogenic	0.26	D
BayesDel_noAF	Uncertain	0.13
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.53	D
Eigen	Uncertain	0.62
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.90	D
M_CAP	Uncertain	0.097	D
MetaRNN	Uncertain	0.68	D
MetaSVM	Benign	-0.37	T
MutationAssessor	Uncertain	2.2	M
PhyloP100		5.9
PrimateAI	Uncertain	0.76	T
PROVEAN	Uncertain	-2.6	D
REVEL	Uncertain	0.38
Sift	Uncertain	0.0080	D
Sift4G	Uncertain	0.0060	D
Polyphen		1.0	D
Vest4		0.75
MutPred		0.23		Loss of stability (P = 0.0531)
MVP		0.71
MPC		0.31
ClinPred		0.99	D
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.36
gMVP		0.39
Mutation Taster		=32/68	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.080		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: rs757641323; hg19: chr12-88524986;