1-16232164-G-C

Variant names:

• chr1-16232164-G-C
• rs373665028
• NM_030907.4:c.661C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_030907.4(CPLANE2):​c.661C>G​(p.Arg221Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. 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. R221W) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CPLANE2 NM_030907.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.391
• Publications: 1 publications found

Genes affected

CPLANE2 (HGNC:28127): (ciliogenesis and planar polarity effector complex subunit 2) Predicted to enable GTP binding activity and GTPase activity. Predicted to be involved in cellular protein localization; cilium assembly; and regulation of vesicle-mediated transport. Predicted to be located in ciliary basal body. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.10339853).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030907.4. 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
	CPLANE2	NM_030907.4	MANE Select	c.661C>G	p.Arg221Gly	missense	Exon 5 of 5	NP_112169.2	Q9BU20

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CPLANE2	ENST00000375599.8	TSL:1 MANE Select	c.661C>G	p.Arg221Gly	missense	Exon 5 of 5	ENSP00000364749.2	Q9BU20
	CPLANE2	ENST00000945441.1		c.760C>G	p.Arg254Gly	missense	Exon 5 of 5	ENSP00000615500.1
	CPLANE2	ENST00000434014.1	TSL:5	c.*117C>G		downstream_gene	N/A	ENSP00000406390.1	H0Y6L8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.32
CADD	Benign	14
DANN	Uncertain	0.99
DEOGEN2	Benign	0.054	T
Eigen	Benign	-0.60
Eigen_PC	Benign	-0.52
FATHMM_MKL	Benign	0.69	D
LIST_S2	Benign	0.67	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.10	T
MetaSVM	Benign	-1.1	T
PhyloP100		0.39
PrimateAI	Uncertain	0.49	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.17
Sift	Benign	0.045	D
Sift4G	Uncertain	0.039	D
Polyphen		0.0020	B
Vest4		0.28
MutPred		0.53		Loss of methylation at R221 (P = 0.032)
MVP		0.45
MPC		0.22
ClinPred		0.11	T
GERP RS		-1.5
Varity_R		0.13
gMVP		0.52
Mutation Taster		=80/20	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: rs373665028; hg19: chr1-16558659;