chr14-24631079-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004131.6(GZMB):​c.736C>T​(p.Arg246Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000397 in 1,612,690 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

GZMB
NM_004131.6 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.66
Variant links:
Genes affected
GZMB (HGNC:4709): (granzyme B) This gene encodes a member of the granzyme subfamily of proteins, part of the peptidase S1 family of serine proteases. The encoded preproprotein is secreted by natural killer (NK) cells and cytotoxic T lymphocytes (CTLs) and proteolytically processed to generate the active protease, which induces target cell apoptosis. This protein also processes cytokines and degrades extracellular matrix proteins, and these roles are implicated in chronic inflammation and wound healing. Expression of this gene may be elevated in human patients with cardiac fibrosis. [provided by RefSeq, Sep 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07887256).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GZMBNM_004131.6 linkuse as main transcriptc.736C>T p.Arg246Cys missense_variant 5/5 ENST00000216341.9 NP_004122.2
GZMBNM_001346011.2 linkuse as main transcriptc.700C>T p.Arg234Cys missense_variant 5/5 NP_001332940.1
GZMBNR_144343.2 linkuse as main transcriptn.630C>T non_coding_transcript_exon_variant 4/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GZMBENST00000216341.9 linkuse as main transcriptc.736C>T p.Arg246Cys missense_variant 5/51 NM_004131.6 ENSP00000216341 P2
ENST00000555300.1 linkuse as main transcriptn.177+7953G>A intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152108
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:
0.000471
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000676
AC:
17
AN:
251298
Hom.:
0
AF XY:
0.0000957
AC XY:
13
AN XY:
135806
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:
0.0000980
Gnomad FIN exome
AF:
0.000462
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000390
AC:
57
AN:
1460582
Hom.:
0
Cov.:
30
AF XY:
0.0000399
AC XY:
29
AN XY:
726736
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.000431
Gnomad4 NFE exome
AF:
0.0000243
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152108
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74298
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:
0.000471
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000727
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000576
AC:
7

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 GeneticsDec 06, 2022The c.736C>T (p.R246C) alteration is located in exon 5 (coding exon 5) of the GZMB gene. This alteration results from a C to T substitution at nucleotide position 736, causing the arginine (R) at amino acid position 246 to be replaced by a cysteine (C). 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
0.29
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
10
DANN
Benign
0.74
DEOGEN2
Uncertain
0.57
.;D;T;T;T
Eigen
Benign
-1.9
Eigen_PC
Benign
-2.0
FATHMM_MKL
Benign
0.043
N
LIST_S2
Benign
0.40
T;T;T;.;T
M_CAP
Uncertain
0.28
D
MetaRNN
Benign
0.079
T;T;T;T;T
MetaSVM
Benign
-0.57
T
MutationAssessor
Uncertain
2.1
.;M;.;.;.
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.24
T
PROVEAN
Uncertain
-3.5
D;D;.;D;.
REVEL
Benign
0.21
Sift
Benign
0.056
T;T;.;D;.
Sift4G
Benign
0.065
T;T;D;T;T
Polyphen
0.019
.;B;.;.;.
Vest4
0.13
MutPred
0.36
.;Gain of catalytic residue at M244 (P = 2e-04);.;.;.;
MVP
0.57
MPC
0.25
ClinPred
0.063
T
GERP RS
-9.8
Varity_R
0.11
gMVP
0.45

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: rs767220668; hg19: chr14-25100285; API