11-66605808-G-T

Position:

• chr11-66605808-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_005125.2(CCS):​c.778G>T​(p.Ala260Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CCS NM_005125.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.18

Genes affected

CCS (HGNC:1613): (copper chaperone for superoxide dismutase) Copper chaperone for superoxide dismutase specifically delivers Cu to copper/zinc superoxide dismutase and may activate copper/zinc superoxide dismutase through direct insertion of the Cu cofactor. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.32683796).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CCS	NM_005125.2	c.778G>T	p.Ala260Ser	missense_variant	8/8	ENST00000533244.6	NP_005116.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CCS	ENST00000533244.6	c.778G>T	p.Ala260Ser	missense_variant	8/8	1	NM_005125.2	ENSP00000436318	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1444296 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 717330

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 14, 2023

The c.778G>T (p.A260S) alteration is located in exon 8 (coding exon 8) of the CCS gene. This alteration results from a G to T substitution at nucleotide position 778, causing the alanine (A) at amino acid position 260 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.030
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.35	T;.
Eigen	Benign	-0.031
Eigen_PC	Benign	0.077
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Benign	0.82	T;T
M_CAP	Pathogenic	0.71	D
MetaRNN	Benign	0.33	T;T
MetaSVM	Pathogenic	1.2	D
MutationAssessor	Benign	1.5	L;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-1.5	N;N
REVEL	Uncertain	0.46
Sift	Uncertain	0.019	D;D
Sift4G	Uncertain	0.018	D;D
Polyphen		0.014	B;.
Vest4		0.20
MutPred		0.23		Gain of glycosylation at A260 (P = 8e-04);.;
MVP		0.97
MPC		0.28
ClinPred		0.94	D
GERP RS		4.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.15
gMVP		0.41

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-66373279;