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GeneBe

19-45315491-C-T

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

Scores

6
7
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.50
Variant links:
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
CKMNM_001824.5 linkuse as main transcriptc.455G>A p.Arg152Gln missense_variant 4/8 ENST00000221476.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CKMENST00000221476.4 linkuse as main transcriptc.455G>A p.Arg152Gln missense_variant 4/81 NM_001824.5 P1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152196
Hom.:
0
Cov.:
32
show subpopulations
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:
0.000103
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000126
AC:
3
AN:
237184
Hom.:
0
AF XY:
0.0000232
AC XY:
3
AN XY:
129212
show subpopulations
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000270
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000242
AC:
35
AN:
1447282
Hom.:
1
Cov.:
31
AF XY:
0.0000305
AC XY:
22
AN XY:
720350
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000448
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000225
Gnomad4 OTH exome
AF:
0.0000664
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152314
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74478
show subpopulations
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:
0.000103
Gnomad4 OTH
AF:
0.000473
Bravo
AF:
0.0000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

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 submitterclinical testingAmbry GeneticsSep 12, 2023The 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

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.70
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.28
CADD
Pathogenic
30
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.31
T
Eigen
Pathogenic
0.75
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D
M_CAP
Uncertain
0.11
D
MetaRNN
Pathogenic
0.83
D
MetaSVM
Benign
-0.66
T
MutationAssessor
Pathogenic
3.6
H
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.67
T
PROVEAN
Uncertain
-3.4
D
REVEL
Uncertain
0.30
Sift
Uncertain
0.0010
D
Sift4G
Benign
0.068
T
Polyphen
1.0
D
Vest4
0.81
MVP
0.55
MPC
0.99
ClinPred
0.98
D
GERP RS
4.0
Varity_R
0.90
gMVP
0.72

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs146705516; hg19: chr19-45818749; API