rs145635131

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_001330588.2(TPP2):​c.673A>G​(p.Arg225Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000203 in 1,614,154 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00021 ( 1 hom. )

Consequence

TPP2
NM_001330588.2 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.19

Publications

1 publications found
Variant links:
Genes affected
TPP2 (HGNC:12016): (tripeptidyl peptidase 2) This gene encodes a mammalian peptidase that, at neutral pH, removes tripeptides from the N terminus of longer peptides. The protein has a specialized function that is essential for some MHC class I antigen presentation. The protein is a high molecular mass serine exopeptidase; the amino acid sequence surrounding the serine residue at the active site is similar to the peptidases of the subtilisin class rather than the trypsin class. [provided by RefSeq, Jul 2008]
TPP2 Gene-Disease associations (from GenCC):
  • immunodeficiency 78 with autoimmunity and developmental delay
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P, PanelApp Australia
  • autoimmune hemolytic anemia-autoimmune thrombocytopenia-primary immunodeficiency syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0119229555).
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000112 (17/152314) while in subpopulation SAS AF = 0.00124 (6/4832). AF 95% confidence interval is 0.000541. There are 0 homozygotes in GnomAd4. There are 9 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001330588.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TPP2
NM_001330588.2
MANE Select
c.673A>Gp.Arg225Gly
missense
Exon 6 of 30NP_001317517.1Q5VZU9
TPP2
NM_001367947.1
c.673A>Gp.Arg225Gly
missense
Exon 6 of 30NP_001354876.1
TPP2
NM_003291.4
c.673A>Gp.Arg225Gly
missense
Exon 6 of 29NP_003282.2P29144

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TPP2
ENST00000376052.5
TSL:5 MANE Select
c.673A>Gp.Arg225Gly
missense
Exon 6 of 30ENSP00000365220.3Q5VZU9
TPP2
ENST00000376065.8
TSL:1
c.673A>Gp.Arg225Gly
missense
Exon 6 of 29ENSP00000365233.4P29144
TPP2
ENST00000912746.1
c.673A>Gp.Arg225Gly
missense
Exon 6 of 31ENSP00000582805.1

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152196
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00145
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000342
AC:
86
AN:
251396
AF XY:
0.000471
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000231
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000281
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000212
AC:
310
AN:
1461840
Hom.:
1
Cov.:
29
AF XY:
0.000272
AC XY:
198
AN XY:
727212
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.000179
AC:
8
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.000230
AC:
6
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.00161
AC:
139
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53408
Middle Eastern (MID)
AF:
0.00121
AC:
7
AN:
5768
European-Non Finnish (NFE)
AF:
0.000122
AC:
136
AN:
1112000
Other (OTH)
AF:
0.000232
AC:
14
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
15
31
46
62
77
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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
AF:
0.000112
AC:
17
AN:
152314
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74492
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41570
American (AMR)
AF:
0.0000653
AC:
1
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00124
AC:
6
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68006
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000108
Hom.:
0
Bravo
AF:
0.0000642
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000404
AC:
49
EpiCase
AF:
0.000218
EpiControl
AF:
0.000296

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Evans syndrome, immunodeficiency, and premature immunosenescence associated with tripeptidyl-peptidase II deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
18
DANN
Benign
0.47
DEOGEN2
Benign
0.094
T
Eigen
Benign
-0.44
Eigen_PC
Benign
-0.15
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.024
T
MetaRNN
Benign
0.012
T
MetaSVM
Benign
-0.65
T
MutationAssessor
Benign
-0.20
N
PhyloP100
3.2
PrimateAI
Benign
0.46
T
PROVEAN
Benign
1.4
N
REVEL
Benign
0.28
Sift
Benign
1.0
T
Sift4G
Benign
0.51
T
Polyphen
0.0
B
Vest4
0.15
MVP
0.10
MPC
0.89
ClinPred
0.054
T
GERP RS
6.0
Varity_R
0.098
gMVP
0.60
Mutation Taster
=79/21
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: rs145635131; hg19: chr13-103275279; API