rs2293277

Positions:

• chr10-93519749-A-G
• chr10-93519749-A-T

Variant summary

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

The NM_018131.5(CEP55):​c.1133A>G​(p.His378Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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. H378L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CEP55 NM_018131.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.13

Genes affected

CEP55 (HGNC:1161): (centrosomal protein 55) Enables identical protein binding activity. Involved in cranial skeletal system development; establishment of protein localization; and midbody abscission. Acts upstream of or within mitotic cytokinesis. Located in Flemming body; centriolar satellite; and plasma membrane. Implicated in multinucleated neurons, anhydramnios, renal dysplasia, cerebellar hypoplasia and hydranencephaly. [provided by Alliance of Genome Resources, Apr 2022]

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
CEP55	NM_018131.5	c.1133A>G	p.His378Arg	missense_variant	8/9	ENST00000371485.8	NP_060601.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CEP55	ENST00000371485.8	c.1133A>G	p.His378Arg	missense_variant	8/9	1	NM_018131.5	ENSP00000360540	P1
CEP55	ENST00000496302.1	n.182A>G		non_coding_transcript_exon_variant	3/3	5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 44

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.030	T
Eigen	Uncertain	0.37
Eigen_PC	Uncertain	0.46
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.78	T
M_CAP	Benign	0.0068	T
MetaRNN	Uncertain	0.58	D
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.2	M
MutationTaster	Benign	0.15	P
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-1.9	N
REVEL	Benign	0.070
Sift	Benign	0.037	D
Sift4G	Benign	0.065	T
Polyphen		0.79	P
Vest4		0.27
MutPred		0.25		Gain of MoRF binding (P = 0.011);
MVP		0.89
MPC		0.25
ClinPred		0.74	D
GERP RS		5.8
Varity_R		0.092
gMVP		0.25

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: rs2293277; hg19: chr10-95279506;