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GeneBe

14-60796291-A-G

Variant summary

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

The NM_002431.4(MNAT1):c.164A>G(p.Lys55Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,613,732 control chromosomes in the GnomAD database, with no homozygous occurrence. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

MNAT1
NM_002431.4 missense

Scores

2
3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.78
Variant links:
Genes affected
MNAT1 (HGNC:7181): (MNAT1 component of CDK activating kinase) The protein encoded by this gene, along with cyclin H and CDK7, forms the CDK-activating kinase (CAK) enzymatic complex. This complex activates several cyclin-associated kinases and can also associate with TFIIH to activate transcription by RNA polymerase II. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MNAT1NM_002431.4 linkuse as main transcriptc.164A>G p.Lys55Arg missense_variant 2/8 ENST00000261245.9
MNAT1NM_001177963.2 linkuse as main transcriptc.164A>G p.Lys55Arg missense_variant 2/7
MNAT1XM_017021332.3 linkuse as main transcriptc.119A>G p.Lys40Arg missense_variant 3/9
MNAT1XM_005267688.4 linkuse as main transcriptc.164A>G p.Lys55Arg missense_variant 2/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MNAT1ENST00000261245.9 linkuse as main transcriptc.164A>G p.Lys55Arg missense_variant 2/81 NM_002431.4 P1P51948-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152206
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251014
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135656
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:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461526
Hom.:
0
Cov.:
30
AF XY:
0.00000963
AC XY:
7
AN XY:
727066
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152206
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74360
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

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 GeneticsJan 17, 2023The c.164A>G (p.K55R) alteration is located in exon 2 (coding exon 2) of the MNAT1 gene. This alteration results from a A to G substitution at nucleotide position 164, causing the lysine (K) at amino acid position 55 to be replaced by an arginine (R). 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
Benign
0.096
BayesDel_addAF
Benign
-0.023
T
BayesDel_noAF
Benign
-0.27
Cadd
Benign
18
Dann
Benign
0.39
DEOGEN2
Benign
0.14
T;.
Eigen
Benign
0.079
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Benign
0.012
T
MetaRNN
Uncertain
0.56
D;D
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.1
L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
1.2
N;N
REVEL
Benign
0.20
Sift
Benign
1.0
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.068
B;.
Vest4
0.69
MutPred
0.77
Gain of catalytic residue at T51 (P = 0);Gain of catalytic residue at T51 (P = 0);
MVP
0.59
MPC
0.71
ClinPred
0.63
D
GERP RS
5.6
Varity_R
0.41
gMVP
0.64

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: rs757665648; hg19: chr14-61263009; COSMIC: COSV54195465; COSMIC: COSV54195465; API