3-127923309-C-T

Variant summary

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

The NM_207335.4(KBTBD12):​c.248C>T​(p.Ser83Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000026 in 1,613,638 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

KBTBD12
NM_207335.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.79
Variant links:
Genes affected
KBTBD12 (HGNC:25731): (kelch repeat and BTB domain containing 12)
MGLL (HGNC:17038): (monoglyceride lipase) This gene encodes a serine hydrolase of the AB hydrolase superfamily that catalyzes the conversion of monoacylglycerides to free fatty acids and glycerol. The encoded protein plays a critical role in several physiological processes including pain and nociperception through hydrolysis of the endocannabinoid 2-arachidonoylglycerol. Expression of this gene may play a role in cancer tumorigenesis and metastasis. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Feb 2012]

Genome browser will be placed here

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=0.27791464).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KBTBD12NM_207335.4 linkuse as main transcriptc.248C>T p.Ser83Leu missense_variant 2/6 ENST00000405109.5 NP_997218.2 Q3ZCT8-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KBTBD12ENST00000405109.5 linkuse as main transcriptc.248C>T p.Ser83Leu missense_variant 2/65 NM_207335.4 ENSP00000385957.1 Q3ZCT8-1

Frequencies

GnomAD3 genomes
AF:
0.0000855
AC:
13
AN:
152022
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000266
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000361
AC:
9
AN:
249012
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135074
show subpopulations
Gnomad AFR exome
AF:
0.000194
Gnomad AMR exome
AF:
0.0000580
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000266
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1461498
Hom.:
0
Cov.:
34
AF XY:
0.0000165
AC XY:
12
AN XY:
727022
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
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:
0.0000162
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000986
AC:
15
AN:
152140
Hom.:
0
Cov.:
32
AF XY:
0.0000941
AC XY:
7
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.000313
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000464
Hom.:
0
Bravo
AF:
0.0000945
ESP6500AA
AF:
0.000259
AC:
1
ESP6500EA
AF:
0.000121
AC:
1
ExAC
AF:
0.0000248
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 GeneticsOct 12, 2024The c.248C>T (p.S83L) alteration is located in exon 1 (coding exon 1) of the KBTBD12 gene. This alteration results from a C to T substitution at nucleotide position 248, causing the serine (S) at amino acid position 83 to be replaced by a leucine (L). 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
0.096
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
16
DANN
Benign
0.94
DEOGEN2
Uncertain
0.50
T;T
Eigen
Benign
-0.27
Eigen_PC
Benign
-0.24
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.79
.;T
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.28
T;T
MetaSVM
Benign
-0.56
T
MutationAssessor
Benign
2.0
M;M
PrimateAI
Benign
0.38
T
PROVEAN
Uncertain
-2.8
D;D
REVEL
Benign
0.20
Sift
Benign
0.18
T;T
Sift4G
Benign
0.063
T;T
Polyphen
0.57
P;P
Vest4
0.20
MVP
0.43
MPC
0.042
ClinPred
0.058
T
GERP RS
4.0
Varity_R
0.33
gMVP
0.52

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: rs200366097; hg19: chr3-127642152; COSMIC: COSV100675384; COSMIC: COSV100675384; API