chr17-78925057-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003255.5(TIMP2):​c.32C>T​(p.Ala11Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000063 in 1,110,448 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000014 ( 0 hom., cov: 29)
Exomes 𝑓: 0.0000051 ( 0 hom. )

Consequence

TIMP2
NM_003255.5 missense

Scores

2
1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.46

Publications

0 publications found
Variant links:
Genes affected
TIMP2 (HGNC:11821): (TIMP metallopeptidase inhibitor 2) This gene is a member of the TIMP gene family. The proteins encoded by this gene family are natural inhibitors of the matrix metalloproteinases, a group of peptidases involved in degradation of the extracellular matrix. In addition to an inhibitory role against metalloproteinases, the encoded protein has a unique role among TIMP family members in its ability to directly suppress the proliferation of endothelial cells. As a result, the encoded protein may be critical to the maintenance of tissue homeostasis by suppressing the proliferation of quiescent tissues in response to angiogenic factors, and by inhibiting protease activity in tissues undergoing remodelling of the extracellular matrix. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.080179065).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TIMP2NM_003255.5 linkc.32C>T p.Ala11Val missense_variant Exon 1 of 5 ENST00000262768.11 NP_003246.1 P16035A0A140VK57

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TIMP2ENST00000262768.11 linkc.32C>T p.Ala11Val missense_variant Exon 1 of 5 1 NM_003255.5 ENSP00000262768.6 P16035

Frequencies

GnomAD3 genomes
AF:
0.0000144
AC:
2
AN:
139004
Hom.:
0
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.0000255
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000703
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:
0.000206
AC:
1
AN:
4846
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00242
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:
0.00
GnomAD4 exome
AF:
0.00000515
AC:
5
AN:
971444
Hom.:
0
Cov.:
29
AF XY:
0.00000872
AC XY:
4
AN XY:
458522
show subpopulations
African (AFR)
AF:
0.0000518
AC:
1
AN:
19320
American (AMR)
AF:
0.000189
AC:
1
AN:
5278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
10228
East Asian (EAS)
AF:
0.00
AC:
0
AN:
16922
South Asian (SAS)
AF:
0.0000859
AC:
2
AN:
23290
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
12550
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
2282
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
846020
Other (OTH)
AF:
0.0000281
AC:
1
AN:
35554
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.445
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000144
AC:
2
AN:
139004
Hom.:
0
Cov.:
29
AF XY:
0.0000149
AC XY:
1
AN XY:
67256
show subpopulations
African (AFR)
AF:
0.0000255
AC:
1
AN:
39168
American (AMR)
AF:
0.0000703
AC:
1
AN:
14220
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3292
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4116
South Asian (SAS)
AF:
0.00
AC:
0
AN:
3974
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
7466
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
298
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
63652
Other (OTH)
AF:
0.00
AC:
0
AN:
1972
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Sep 30, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.32C>T (p.A11V) alteration is located in exon 1 (coding exon 1) of the TIMP2 gene. This alteration results from a C to T substitution at nucleotide position 32, causing the alanine (A) at amino acid position 11 to be replaced by a valine (V). 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
0.17
BayesDel_addAF
Benign
-0.012
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.12
T
Eigen
Benign
-0.52
Eigen_PC
Benign
-0.41
FATHMM_MKL
Benign
0.24
N
LIST_S2
Benign
0.50
T
M_CAP
Pathogenic
0.86
D
MetaRNN
Benign
0.080
T
MetaSVM
Benign
-0.36
T
MutationAssessor
Benign
0.55
N
PhyloP100
1.5
PrimateAI
Pathogenic
0.89
D
PROVEAN
Benign
-1.1
N
REVEL
Benign
0.22
Sift
Benign
0.20
T
Sift4G
Benign
0.51
T
Polyphen
0.0010
B
Vest4
0.24
MutPred
0.35
Loss of disorder (P = 0.038);
MVP
0.15
MPC
0.68
ClinPred
0.038
T
GERP RS
1.2
PromoterAI
-0.033
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.091
gMVP
0.38
Mutation Taster
=89/11
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: rs1017940712; hg19: chr17-76921139; API