19-45315542-C-G

Variant names:

• chr19-45315542-C-G
• rs370269966
• NM_001824.5:c.404G>C

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_001824.5(CKM):​c.404G>C​(p.Arg135Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic 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. R135G) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CKM NM_001824.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.79
• Publications: 2 publications found

Genes affected

CKM (HGNC:1994): (creatine kinase, M-type) The protein encoded by this gene is a cytoplasmic enzyme involved in energy homeostasis and is an important serum marker for myocardial infarction. The encoded protein reversibly catalyzes the transfer of phosphate between ATP and various phosphogens such as creatine phosphate. It acts as a homodimer in striated muscle as well as in other tissues, and as a heterodimer with a similar brain isozyme in heart. The encoded protein is a member of the ATP:guanido phosphotransferase protein family. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.976

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001824.5. 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
	CKM	NM_001824.5	MANE Select	c.404G>C	p.Arg135Pro	missense	Exon 4 of 8	NP_001815.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CKM	ENST00000221476.4	TSL:1 MANE Select	c.404G>C	p.Arg135Pro	missense	Exon 4 of 8	ENSP00000221476.2	P06732
	CKM	ENST00000969560.1		c.404G>C	p.Arg135Pro	missense	Exon 4 of 8	ENSP00000639619.1
	CKM	ENST00000969562.1		c.404G>C	p.Arg135Pro	missense	Exon 4 of 9	ENSP00000639621.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00 AC: 0 AN: 241454 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.16
CADD	Pathogenic	33
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.47	T
Eigen	Pathogenic	0.87
Eigen_PC	Pathogenic	0.69
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Uncertain	0.18	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Uncertain	0.20	D
MutationAssessor	Pathogenic	4.3	H
PhyloP100		5.8
PrimateAI	Pathogenic	0.83	D
PROVEAN	Pathogenic	-6.2	D
REVEL	Pathogenic	0.69
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.98
MutPred		0.88		Loss of MoRF binding (P = 6e-04)
MVP		0.71
MPC		1.3
ClinPred		1.0	D
GERP RS		3.8
Varity_R		0.99
gMVP		0.98
Mutation Taster		=5/95	disease causing

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: rs370269966; hg19: chr19-45818800;