5-138375100-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_016604.4(KDM3B):​c.368C>T​(p.Thr123Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000188 in 1,593,996 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

KDM3B
NM_016604.4 missense

Scores

3
9
7

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.59
Variant links:
Genes affected
KDM3B (HGNC:1337): (lysine demethylase 3B) Predicted to enable chromatin DNA binding activity; histone H3-methyl-lysine-9 demethylase activity; and transcription coregulator activity. Predicted to be involved in histone H3-K9 demethylation and regulation of transcription by RNA polymerase II. Located in nucleoplasm. Biomarker of acute lymphoblastic leukemia; breast cancer; colorectal cancer; and lung non-small cell carcinoma. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), KDM3B. . Gene score misZ 4.9789 (greater than the threshold 3.09). Trascript score misZ 6.2129 (greater than threshold 3.09). GenCC has associacion of gene with Diets-Jongmans syndrome.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KDM3BNM_016604.4 linkuse as main transcriptc.368C>T p.Thr123Ile missense_variant 3/24 ENST00000314358.10 NP_057688.3 Q7LBC6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KDM3BENST00000314358.10 linkuse as main transcriptc.368C>T p.Thr123Ile missense_variant 3/241 NM_016604.4 ENSP00000326563.5 Q7LBC6-1
KDM3BENST00000510866.5 linkuse as main transcriptn.176C>T non_coding_transcript_exon_variant 2/241 ENSP00000425186.1 H0Y9V5
KDM3BENST00000512928.1 linkuse as main transcriptn.57C>T non_coding_transcript_exon_variant 2/52

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152194
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD4 exome
AF:
0.00000139
AC:
2
AN:
1441802
Hom.:
0
Cov.:
27
AF XY:
0.00000278
AC XY:
2
AN XY:
718708
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.14e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152194
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74356
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:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000478
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Diets-Jongmans syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInstitute of Human Genetics, University of GoettingenMay 05, 2022For the following reasons, we consider the KDM3B sequence variant found as a "variant of uncertain significance". (VUS): 1. a comparison with the gnomAD browser did not provide evidence that this sequence change is a norm variant detectable also in non-affected individuals. The variant is currently not listed in ClinVar or the HGMD database [PM2]; 2. the molecular diagnosis matches some of the patients' clinical symptoms; 3. the variant is independently classified as pathogen by the majority (11 of 19) of prediction programs [PP3]; 4. the following ACMG criteria were applied for classification: PM2, PP3. -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJul 19, 2023Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Uncertain
0.080
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.039
T
Eigen
Pathogenic
0.70
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.89
D
M_CAP
Benign
0.026
D
MetaRNN
Uncertain
0.51
D
MetaSVM
Uncertain
-0.26
T
MutationAssessor
Benign
1.9
L
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-2.0
N
REVEL
Benign
0.27
Sift
Uncertain
0.012
D
Sift4G
Uncertain
0.030
D
Polyphen
1.0
D
Vest4
0.60
MVP
0.61
MPC
1.3
ClinPred
0.86
D
GERP RS
5.9
Varity_R
0.11
gMVP
0.38

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs1761964120; hg19: chr5-137710789; API