chr14-103520290-T-C

Position:

• chr14-103520290-T-C

Variant summary

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

The NM_001823.5(CKB):​c.799A>G​(p.Lys267Glu) 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CKB NM_001823.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.08

Genes affected

CKB (HGNC:1991): (creatine kinase B) The protein encoded by this gene is a cytoplasmic enzyme involved in energy homeostasis. The encoded protein reversibly catalyzes the transfer of phosphate between ATP and various phosphogens such as creatine phosphate. It acts as a homodimer in brain as well as in other tissues, and as a heterodimer with a similar muscle isozyme in heart. The encoded protein is a member of the ATP:guanido phosphotransferase protein family. A pseudogene of this gene has been characterized. [provided by RefSeq, Jul 2008]

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=0.2334347).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CKB	NM_001823.5	c.799A>G	p.Lys267Glu	missense_variant	7/8	ENST00000348956.7
CKB	NM_001362531.2	c.871A>G	p.Lys291Glu	missense_variant	6/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CKB	ENST00000348956.7	c.799A>G	p.Lys267Glu	missense_variant	7/8	1	NM_001823.5	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.097	T
BayesDel_noAF	Benign	-0.38
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.26	T;T
Eigen	Benign	-0.044
Eigen_PC	Benign	0.084
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.90	D;D
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.23	T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.5	L;.
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.71	T
PROVEAN	Benign	-2.0	N;N
REVEL	Benign	0.12
Sift	Benign	0.49	T;T
Sift4G	Benign	0.33	T;T
Polyphen		0.19	B;.
Vest4		0.51
MutPred		0.44		Gain of catalytic residue at E270 (P = 0.0159);.;
MVP		0.23
MPC		1.8
ClinPred		0.82	D
GERP RS		4.8
Varity_R		0.68
gMVP		0.82

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: rs13558; hg19: chr14-103986627;