rs779622807

Variant names:

• chr2-65071547-A-T
• rs779622807
• NM_015147.3:c.451A>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_015147.3(CEP68):​c.451A>T​(p.Thr151Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,878 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T151I) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: CEP68 NM_015147.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.158
• Publications: 1 publications found

Genes affected

CEP68 (HGNC:29076): (centrosomal protein 68) Enables protein domain specific binding activity and protein kinase binding activity. Involved in centriole-centriole cohesion and protein localization to organelle. Located in several cellular components, including centriolar satellite; cytosol; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

RAB1A (HGNC:9758): (RAB1A, member RAS oncogene family) This gene encodes a member of the Ras superfamily of GTPases. Members of the gene family cycle between inactive GDP-bound and active GTP-bound forms. This small GTPase controls vesicle traffic from the endoplasmic reticulum to the Golgi apparatus. Multiple alternatively spliced transcript variants have been identified for this gene which encode different protein isoforms. [provided by RefSeq, Oct 2008]

RAB1A Gene-Disease associations (from GenCC):

• complex neurodevelopmental disorder

  Inheritance: AD Classification: MODERATE Submitted by: G2P

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.022419631).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015147.3. 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
	CEP68	NM_015147.3	MANE Select	c.451A>T	p.Thr151Ser	missense	Exon 3 of 7	NP_055962.2	Q76N32-1
	CEP68	NM_001319100.2		c.451A>T	p.Thr151Ser	missense	Exon 3 of 7	NP_001306029.1	Q76N32-1
	CEP68	NM_001410838.1		c.451A>T	p.Thr151Ser	missense	Exon 3 of 6	NP_001397767.1	A0A994J4E5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CEP68	ENST00000377990.7	TSL:1 MANE Select	c.451A>T	p.Thr151Ser	missense	Exon 3 of 7	ENSP00000367229.2	Q76N32-1
	CEP68	ENST00000260569.4	TSL:1	c.451A>T	p.Thr151Ser	missense	Exon 3 of 7	ENSP00000260569.4	Q76N32-2
	CEP68	ENST00000537589.1	TSL:1	n.167A>T		non_coding_transcript_exon	Exon 2 of 3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.0000199 AC: 5 AN: 251456 AF XY: 0.0000147

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000145

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: 0.00000342 AC: 5 AN: 1461878 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727244

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.000112 AC: 5 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112004

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.51	T
BayesDel_noAF	Benign	-0.72
CADD	Benign	7.6
DANN	Benign	0.83
DEOGEN2	Benign	0.00068	T
Eigen	Benign	-1.0
Eigen_PC	Benign	-0.92
FATHMM_MKL	Benign	0.19	N
LIST_S2	Benign	0.47	T
M_CAP	Benign	0.0047	T
MetaRNN	Benign	0.022	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	1.1	L
PhyloP100		0.16
PrimateAI	Benign	0.26	T
PROVEAN	Benign	-0.060	N
REVEL	Benign	0.061
Sift	Benign	0.69	T
Sift4G	Benign	1.0	T
Polyphen		0.041	B
Vest4		0.058
MutPred		0.096		Loss of solvent accessibility (P = 0.1459)
MVP		0.20
MPC		0.050
ClinPred		0.028	T
GERP RS		2.1
Varity_R		0.066
gMVP		0.077
Mutation Taster		=100/0	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: rs779622807; hg19: chr2-65298681;