NM_001321926.2:c.1121G>A

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001321926.2(CKMT1A):c.1121G>A(p.Arg374Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000479 in 1,461,724 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

CKMT1A
NM_001321926.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.59

Publications

0 publications found

Variant links:

Genes affected

CKMT1A (HGNC:31736): (creatine kinase, mitochondrial 1A) Mitochondrial creatine (MtCK) kinase is responsible for the transfer of high energy phosphate from mitochondria to the cytosolic carrier, creatine. It belongs to the creatine kinase isoenzyme family. It exists as two isoenzymes, sarcomeric MtCK and ubiquitous MtCK, encoded by separate genes. Mitochondrial creatine kinase occurs in two different oligomeric forms: dimers and octamers, in contrast to the exclusively dimeric cytosolic creatine kinase isoenzymes. Many malignant cancers with poor prognosis have shown overexpression of ubiquitous mitochondrial creatine kinase; this may be related to high energy turnover and failure to eliminate cancer cells via apoptosis. Ubiquitous mitochondrial creatine kinase has 80% homology with the coding exons of sarcomeric mitochondrial creatine kinase. Two genes located near each other on chromosome 15 have been identified which encode identical mitochondrial creatine kinase proteins. [provided by RefSeq, Jul 2008]

CKMT1A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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, 0.964

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001321926.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CKMT1A	NM_001321926.2	MANE Select	c.1121G>A	p.Arg374Gln	missense	Exon 8 of 9	NP_001308855.1	P12532-1
CKMT1A	NM_001321927.1		c.1214G>A	p.Arg405Gln	missense	Exon 9 of 10	NP_001308856.1	P12532-2
CKMT1A	NM_001321928.1		c.1214G>A	p.Arg405Gln	missense	Exon 9 of 10	NP_001308857.1	P12532-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CKMT1A	ENST00000413453.7	TSL:1 MANE Select	c.1121G>A	p.Arg374Gln	missense	Exon 8 of 9	ENSP00000406577.3	P12532-1
CKMT1A	ENST00000909070.1		c.1214G>A	p.Arg405Gln	missense	Exon 9 of 10	ENSP00000579129.1
CKMT1A	ENST00000909071.1		c.1214G>A	p.Arg405Gln	missense	Exon 9 of 10	ENSP00000579130.1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

151856

Hom.:

Cov.:

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000795

AC:

AN:

251422

AF XY:

0.0000147

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461724

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727166

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33470

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86222

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111902

Other (OTH)

AF:

0.0000166

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.439

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

151856

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74186

African (AFR)

AF:

0.00

AC:

AN:

41282

American (AMR)

AF:

0.00

AC:

AN:

15236

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67966

Other (OTH)

AF:

0.00

AC:

AN:

2080

Alfa

AF:

0.00

Hom.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.37

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.44

Eigen

Benign

0.15

Eigen_PC

Benign

0.15

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.043

MetaRNN

Pathogenic

0.96

MetaSVM

Benign

-1.1

PhyloP100

6.6

PrimateAI

Uncertain

0.76

PROVEAN

Uncertain

-3.8

REVEL

Benign

0.26

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.0030

Vest4

0.74

MutPred

0.93

Gain of ubiquitination at K377 (P = 0.1497)

MVP

0.36

MPC

1.0

ClinPred

0.99

GERP RS

2.0

Varity_R

0.86

gMVP

0.84

Mutation Taster

=60/40

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over