chr17-3660347-C-G

Position:

• chr17-3660347-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004937.3(CTNS):​c.1082C>G​(p.Pro361Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,234 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 34)
• Consequence: CTNS NM_004937.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.14

Genes affected

CTNS (HGNC:2518): (cystinosin, lysosomal cystine transporter) This gene encodes a seven-transmembrane domain protein that functions to transport cystine out of lysosomes. Its activity is driven by the H+ electrochemical gradient of the lysosomal membrane. Mutations in this gene cause cystinosis, a lysosomal storage disorder. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.14655164).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CTNS	NM_004937.3	c.1082C>G	p.Pro361Arg	missense_variant	12/12	ENST00000046640.9	NP_004928.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CTNS	ENST00000046640.9	c.1082C>G	p.Pro361Arg	missense_variant	12/12	1	NM_004937.3	ENSP00000046640	P1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152234 Hom.: 0 Cov.: 34

Gnomad AFR AF: 0.00

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152234 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 74370

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.086
BayesDel_addAF	Uncertain	0.087	D
BayesDel_noAF	Benign	-0.11
CADD	Benign	18
DANN	Uncertain	0.99
DEOGEN2	Benign	0.23	T;.
Eigen	Benign	-0.093
Eigen_PC	Benign	-0.023
FATHMM_MKL	Benign	0.58	D
LIST_S2	Benign	0.63	T;T
M_CAP	Uncertain	0.12	D
MetaRNN	Benign	0.15	T;T
MetaSVM	Uncertain	0.61	D
MutationAssessor	Uncertain	2.2	M;M
MutationTaster	Benign	0.98	D;D;D;D
PrimateAI	Benign	0.37	T
PROVEAN	Benign	-1.2	N;N
REVEL	Uncertain	0.31
Sift	Benign	0.093	T;D
Sift4G	Benign	0.16	T;D
Polyphen		0.73	P;B
Vest4		0.061
MutPred		0.31		Gain of MoRF binding (P = 4e-04);Gain of MoRF binding (P = 4e-04);
MVP		0.95
MPC		0.51
ClinPred		0.79	D
GERP RS		5.2
Varity_R		0.14
gMVP		0.47

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: rs560868487; hg19: chr17-3563641;