chr14-24631084-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_004131.6(GZMB):ā€‹c.731T>Cā€‹(p.Met244Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000143 in 1,613,230 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000020 ( 0 hom., cov: 32)
Exomes š‘“: 0.000014 ( 0 hom. )

Consequence

GZMB
NM_004131.6 missense

Scores

3
9
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.92
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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3995294).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GZMBNM_004131.6 linkuse as main transcriptc.731T>C p.Met244Thr missense_variant 5/5 ENST00000216341.9 NP_004122.2
GZMBNM_001346011.2 linkuse as main transcriptc.695T>C p.Met232Thr missense_variant 5/5 NP_001332940.1
GZMBNR_144343.2 linkuse as main transcriptn.625T>C 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.731T>C p.Met244Thr missense_variant 5/51 NM_004131.6 ENSP00000216341 P2
ENST00000555300.1 linkuse as main transcriptn.177+7958A>G intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152142
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000386
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
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251348
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135836
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000163
Gnomad SAS 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:
0.0000137
AC:
20
AN:
1461088
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
726960
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000282
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152142
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74306
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000264
ExAC
AF:
0.0000247
AC:
3

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 15, 2023The c.731T>C (p.M244T) alteration is located in exon 5 (coding exon 5) of the GZMB gene. This alteration results from a T to C substitution at nucleotide position 731, causing the methionine (M) at amino acid position 244 to be replaced by a threonine (T). 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
Pathogenic
0.61
BayesDel_addAF
Uncertain
0.014
T
BayesDel_noAF
Uncertain
0.010
CADD
Benign
20
DANN
Benign
0.87
DEOGEN2
Uncertain
0.64
.;D;T;T;T
Eigen
Benign
-0.046
Eigen_PC
Benign
0.043
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Benign
0.58
T;T;T;.;T
M_CAP
Uncertain
0.10
D
MetaRNN
Benign
0.40
T;T;T;T;T
MetaSVM
Uncertain
0.26
D
MutationAssessor
Benign
0.66
.;N;.;.;.
MutationTaster
Benign
0.80
D;D;N;N
PrimateAI
Uncertain
0.51
T
PROVEAN
Pathogenic
-5.5
D;D;.;D;D
REVEL
Uncertain
0.50
Sift
Uncertain
0.019
D;D;.;D;D
Sift4G
Pathogenic
0.0010
D;D;D;D;D
Polyphen
0.88
.;P;.;.;.
Vest4
0.28
MutPred
0.62
.;Gain of phosphorylation at M244 (P = 0.0213);.;.;.;
MVP
0.97
MPC
0.29
ClinPred
0.29
T
GERP RS
5.2
Varity_R
0.51
gMVP
0.75

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: rs752473990; hg19: chr14-25100290; API