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GeneBe

6-18171364-T-C

Variant summary

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

The NM_001364614.2(KDM1B):c.419T>C(p.Val140Ala) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000317 in 1,512,340 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

KDM1B
NM_001364614.2 missense, splice_region

Scores

1
7
5
Splicing: ADA: 0.02717
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.75
Variant links:
Genes affected
KDM1B (HGNC:21577): (lysine demethylase 1B) Flavin-dependent histone demethylases, such as KDM1B, regulate histone lysine methylation, an epigenetic mark that regulates gene expression and chromatin function (Karytinos et al., 2009 [PubMed 19407342]).[supplied by OMIM, Oct 2009]

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 where missense usually causes diseases, KDM1B

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KDM1BNM_001364614.2 linkuse as main transcriptc.419T>C p.Val140Ala missense_variant, splice_region_variant 7/22 ENST00000650836.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KDM1BENST00000650836.2 linkuse as main transcriptc.419T>C p.Val140Ala missense_variant, splice_region_variant 7/22 NM_001364614.2 P4Q8NB78-1
KDM1BENST00000546309.6 linkuse as main transcriptc.-19+15951T>C intron_variant 1
KDM1BENST00000449850.2 linkuse as main transcriptc.419T>C p.Val140Ala missense_variant, splice_region_variant 7/225 A1
KDM1BENST00000297792.9 linkuse as main transcriptc.419T>C p.Val140Ala missense_variant, splice_region_variant 7/182 Q8NB78-2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152200
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251366
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135854
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000331
AC:
45
AN:
1360140
Hom.:
0
Cov.:
25
AF XY:
0.0000264
AC XY:
18
AN XY:
682602
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000412
Gnomad4 OTH exome
AF:
0.0000351
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74362
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.00000756
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 17, 2023The c.419T>C (p.V140A) alteration is located in exon 7 (coding exon 5) of the KDM1B gene. This alteration results from a T to C substitution at nucleotide position 419, causing the valine (V) at amino acid position 140 to be replaced by an alanine (A). 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
Uncertain
0.50
BayesDel_addAF
Uncertain
0.081
D
BayesDel_noAF
Benign
-0.11
Cadd
Benign
22
Dann
Uncertain
0.98
Eigen
Uncertain
0.55
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.83
T;T
M_CAP
Benign
0.019
T
MetaRNN
Uncertain
0.50
D;D
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
0.83
D;D;D;D;D
PrimateAI
Uncertain
0.77
T
Vest4
0.35
MutPred
0.73
Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);
MVP
0.70
MPC
1.2
ClinPred
0.75
D
GERP RS
5.4
gMVP
0.68

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.027
dbscSNV1_RF
Benign
0.28
SpliceAI score (max)
0.080
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: rs1306422029; hg19: chr6-18171595; API