2-73730026-A-G

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_016058.5(TPRKB):​c.445T>C​(p.Tyr149His) variant causes a missense change. The variant allele was found at a frequency of 0.00000284 in 1,408,330 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y149C) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

TPRKB
NM_016058.5 missense

Scores

6
9
3

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.03

Publications

1 publications found
Variant links:
Genes affected
TPRKB (HGNC:24259): (TP53RK binding protein) Enables protein kinase binding activity. Involved in tRNA threonylcarbamoyladenosine modification. Located in cytosol and nucleus. Part of EKC/KEOPS complex. Implicated in Galloway-Mowat syndrome 5. [provided by Alliance of Genome Resources, Apr 2022]
TPRKB Gene-Disease associations (from GenCC):
  • Galloway-Mowat syndrome 5
    Inheritance: AR, Unknown Classification: STRONG, LIMITED Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • Galloway-Mowat syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

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;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr2-73730025-T-C is described in ClinVar as Pathogenic. ClinVar VariationId is 444885.Status of the report is no_assertion_criteria_provided, 0 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.916

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016058.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TPRKB
NM_016058.5
MANE Select
c.445T>Cp.Tyr149His
missense
Exon 5 of 5NP_057142.1Q9Y3C4-1
TPRKB
NM_001330386.2
c.562T>Cp.Tyr188His
missense
Exon 6 of 6NP_001317315.1Q9Y3C4-3
TPRKB
NM_001330387.2
c.562T>Cp.Tyr188His
missense
Exon 6 of 6NP_001317316.1Q9Y3C4-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TPRKB
ENST00000272424.11
TSL:1 MANE Select
c.445T>Cp.Tyr149His
missense
Exon 5 of 5ENSP00000272424.5Q9Y3C4-1
TPRKB
ENST00000318190.7
TSL:5
c.562T>Cp.Tyr188His
missense
Exon 6 of 6ENSP00000325398.7Q9Y3C4-3
TPRKB
ENST00000409716.6
TSL:5
c.562T>Cp.Tyr188His
missense
Exon 6 of 6ENSP00000386936.2Q9Y3C4-3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000955
AC:
2
AN:
209388
AF XY:
0.00000879
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:
0.0000105
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000284
AC:
4
AN:
1408330
Hom.:
0
Cov.:
31
AF XY:
0.00000429
AC XY:
3
AN XY:
698804
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32010
American (AMR)
AF:
0.00
AC:
0
AN:
36176
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24412
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38316
South Asian (SAS)
AF:
0.0000126
AC:
1
AN:
79450
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50882
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5618
European-Non Finnish (NFE)
AF:
0.00000277
AC:
3
AN:
1083578
Other (OTH)
AF:
0.00
AC:
0
AN:
57888
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000936
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000828
AC:
1

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Galloway-Mowat syndrome 5 (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.42
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.26
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.41
T
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.68
T
M_CAP
Benign
0.041
D
MetaRNN
Pathogenic
0.92
D
MetaSVM
Uncertain
-0.20
T
MutationAssessor
Uncertain
2.5
M
PhyloP100
7.0
PrimateAI
Uncertain
0.66
T
PROVEAN
Pathogenic
-4.6
D
REVEL
Uncertain
0.58
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.055
T
Polyphen
0.97
D
Vest4
0.80
MutPred
0.79
Gain of disorder (P = 0.0214)
MVP
0.69
MPC
0.16
ClinPred
0.99
D
GERP RS
4.0
Varity_R
0.88
gMVP
0.80
Mutation Taster
=60/40
polymorphism

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

Other links and lift over

dbSNP: rs754783287; hg19: chr2-73957153; API