5-138352864-A-AGCCTCG

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM4BS2

The NM_016604.4(KDM3B):​c.78_83dupCTCGGC​(p.Ala28_Pro29insSerAla) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000241 in 1,375,480 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

KDM3B
NM_016604.4 disruptive_inframe_insertion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.823
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM4
Nonframeshift variant in NON repetitive region in NM_016604.4.
BS2
High AC in GnomAd4 at 21 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KDM3BNM_016604.4 linkc.78_83dupCTCGGC p.Ala28_Pro29insSerAla disruptive_inframe_insertion 1/24 ENST00000314358.10 NP_057688.3 Q7LBC6-1
KDM3BXM_005272018.5 linkc.78_83dupCTCGGC p.Ala28_Pro29insSerAla disruptive_inframe_insertion 1/23 XP_005272075.1
KDM3BXM_047417313.1 linkc.-971_-966dupCTCGGC 5_prime_UTR_variant 1/25 XP_047273269.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KDM3BENST00000314358.10 linkc.78_83dupCTCGGC p.Ala28_Pro29insSerAla disruptive_inframe_insertion 1/241 NM_016604.4 ENSP00000326563.5 Q7LBC6-1

Frequencies

GnomAD3 genomes
AF:
0.000139
AC:
21
AN:
151308
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000243
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:
0.000295
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000171
AC:
1
AN:
58352
Hom.:
0
AF XY:
0.0000288
AC XY:
1
AN XY:
34764
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:
0.0000453
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000253
AC:
310
AN:
1224172
Hom.:
0
Cov.:
34
AF XY:
0.000259
AC XY:
156
AN XY:
601962
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:
0.00
Gnomad4 NFE exome
AF:
0.000292
Gnomad4 OTH exome
AF:
0.000408
GnomAD4 genome
AF:
0.000139
AC:
21
AN:
151308
Hom.:
0
Cov.:
32
AF XY:
0.000149
AC XY:
11
AN XY:
73908
show subpopulations
Gnomad4 AFR
AF:
0.0000243
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:
0.000295
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000122
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 07, 2022The c.78_83dupCTCGGC (p.S27_A28dup) alteration is located in exon 1 (coding exon 1) of the KDM3B gene. The alteration consists of an in-frame duplication of 6 nucleotides from position 78 to 83, resulting in the duplication of <NA> residues. 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

Splicing

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: rs1402643589; hg19: chr5-137688553; API