chr19-45315491-C-T
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Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_001824.5(CKM):c.455G>A(p.Arg152Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000269 in 1,599,596 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000024 ( 1 hom. )
Consequence
CKM
NM_001824.5 missense
NM_001824.5 missense
Scores
6
7
6
Clinical Significance
Conservation
PhyloP100: 7.50
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]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 3 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.828
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CKM | NM_001824.5 | c.455G>A | p.Arg152Gln | missense_variant | 4/8 | ENST00000221476.4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CKM | ENST00000221476.4 | c.455G>A | p.Arg152Gln | missense_variant | 4/8 | 1 | NM_001824.5 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000526 AC: 8AN: 152196Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000126 AC: 3AN: 237184Hom.: 0 AF XY: 0.0000232 AC XY: 3AN XY: 129212
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GnomAD4 exome AF: 0.0000242 AC: 35AN: 1447282Hom.: 1 Cov.: 31 AF XY: 0.0000305 AC XY: 22AN XY: 720350
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GnomAD4 genome AF: 0.0000525 AC: 8AN: 152314Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3AN XY: 74478
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Sep 12, 2023 | The c.455G>A (p.R152Q) alteration is located in exon 4 (coding exon 3) of the CKM gene. This alteration results from a G to A substitution at nucleotide position 455, causing the arginine (R) at amino acid position 152 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
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Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Pathogenic
DANN
Pathogenic
DEOGEN2
Benign
T
Eigen
Pathogenic
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D
MetaSVM
Benign
T
MutationAssessor
Pathogenic
H
MutationTaster
Benign
D
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D
REVEL
Uncertain
Sift
Uncertain
D
Sift4G
Benign
T
Polyphen
D
Vest4
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at