rs754330779

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PP3PP5BP3BS2

The NM_001079872.2(CUL4B):​c.369_377delCTCCTCCTC​(p.Ser124_Ser126del) variant causes a disruptive inframe deletion change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000447 in 1,208,215 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 16 hemizygotes in GnomAD. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000063 ( 0 hom., 1 hem., cov: 22)
Exomes 𝑓: 0.000043 ( 0 hom. 15 hem. )

Consequence

CUL4B
NM_001079872.2 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:2

Conservation

PhyloP100: 9.26

Publications

1 publications found
Variant links:
Genes affected
CUL4B (HGNC:2555): (cullin 4B) This gene is a member of the cullin family. The encoded protein forms a complex that functions as an E3 ubiquitin ligase and catalyzes the polyubiquitination of specific protein substrates in the cell. The protein interacts with a ring finger protein, and is required for the proteolysis of several regulators of DNA replication including chromatin licensing and DNA replication factor 1 and cyclin E. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
CUL4B Gene-Disease associations (from GenCC):
  • X-linked intellectual disability, Cabezas type
    Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Orphanet, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3
No computational evidence supports a deleterious effect, but strongly conserved according to phyloP
PP5
Variant X-120560261-TGAGGAGGAG-T is Pathogenic according to our data. Variant chrX-120560261-TGAGGAGGAG-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 504176.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Likely_pathogenic=1}.
BP3
Nonframeshift variant in repetitive region in NM_001079872.2
BS2
High Hemizygotes in GnomAdExome4 at 15 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CUL4BNM_001079872.2 linkc.369_377delCTCCTCCTC p.Ser124_Ser126del disruptive_inframe_deletion Exon 1 of 20 ENST00000371322.11 NP_001073341.1 Q13620-1
CUL4BNM_003588.4 linkc.423_431delCTCCTCCTC p.Ser142_Ser144del disruptive_inframe_deletion Exon 3 of 22 NP_003579.3 Q13620-2
CUL4BNM_001330624.2 linkc.384_392delCTCCTCCTC p.Ser129_Ser131del disruptive_inframe_deletion Exon 2 of 21 NP_001317553.1 K4DI93

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CUL4BENST00000371322.11 linkc.369_377delCTCCTCCTC p.Ser124_Ser126del disruptive_inframe_deletion Exon 1 of 20 1 NM_001079872.2 ENSP00000360373.5 Q13620-1
CUL4BENST00000681206.1 linkc.384_392delCTCCTCCTC p.Ser129_Ser131del disruptive_inframe_deletion Exon 2 of 23 ENSP00000505480.1 A0A7P0T954
CUL4BENST00000680673.1 linkc.423_431delCTCCTCCTC p.Ser142_Ser144del disruptive_inframe_deletion Exon 3 of 22 ENSP00000505084.1 Q13620-2
CUL4BENST00000681253.1 linkc.423_431delCTCCTCCTC p.Ser142_Ser144del disruptive_inframe_deletion Exon 4 of 23 ENSP00000506259.1 Q13620-2
CUL4BENST00000681652.1 linkc.423_431delCTCCTCCTC p.Ser142_Ser144del disruptive_inframe_deletion Exon 6 of 25 ENSP00000505176.1 Q13620-2
CUL4BENST00000336592.11 linkc.384_392delCTCCTCCTC p.Ser129_Ser131del disruptive_inframe_deletion Exon 2 of 21 5 ENSP00000338919.6 K4DI93
CUL4BENST00000674137.11 linkc.369_377delCTCCTCCTC p.Ser124_Ser126del disruptive_inframe_deletion Exon 1 of 20 ENSP00000501019.6 A0A669KAX4
CUL4BENST00000681090.1 linkc.369_377delCTCCTCCTC p.Ser124_Ser126del disruptive_inframe_deletion Exon 1 of 20 ENSP00000506288.1 A0A7P0TAQ3
CUL4BENST00000404115.8 linkc.369_377delCTCCTCCTC p.Ser124_Ser126del disruptive_inframe_deletion Exon 1 of 19 1 ENSP00000384109.4 A0A804CL36
CUL4BENST00000679927.1 linkc.24_32delCTCCTCCTC p.Ser9_Ser11del disruptive_inframe_deletion Exon 2 of 21 ENSP00000505603.1 A0A7P0T9L3
CUL4BENST00000673919.1 linkn.369_377delCTCCTCCTC non_coding_transcript_exon_variant Exon 1 of 21 ENSP00000500994.1 A0A669KAU9
CUL4BENST00000679432.1 linkn.354_362delCTCCTCCTC non_coding_transcript_exon_variant Exon 1 of 22 ENSP00000505343.1 A0A7P0T8W4
CUL4BENST00000681333.1 linkn.369_377delCTCCTCCTC non_coding_transcript_exon_variant Exon 1 of 17 ENSP00000505739.1 A0A7P0T9R8

Frequencies

GnomAD3 genomes
AF:
0.0000631
AC:
7
AN:
111015
Hom.:
0
Cov.:
22
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000958
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:
0.000113
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000231
AC:
4
AN:
173145
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000514
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000428
AC:
47
AN:
1097200
Hom.:
0
AF XY:
0.0000413
AC XY:
15
AN XY:
362924
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26382
American (AMR)
AF:
0.00
AC:
0
AN:
35197
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19372
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30195
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54099
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40449
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4133
European-Non Finnish (NFE)
AF:
0.0000559
AC:
47
AN:
841308
Other (OTH)
AF:
0.00
AC:
0
AN:
46065
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.434
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000631
AC:
7
AN:
111015
Hom.:
0
Cov.:
22
AF XY:
0.0000300
AC XY:
1
AN XY:
33341
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30539
American (AMR)
AF:
0.0000958
AC:
1
AN:
10437
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2637
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3537
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2654
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5898
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
237
European-Non Finnish (NFE)
AF:
0.000113
AC:
6
AN:
52899
Other (OTH)
AF:
0.00
AC:
0
AN:
1493
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.542
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000302

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Jan 31, 2018
GeneDx
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.423_431delCTCCTCCTC variant in the XXX gene has not been reported previously as a pathogenic variant, nor as a benign variant, to our knowledge. The c.423_431delCTCCTCCTC variant causes an inframe deletion of three amino acids starting at Serine 144, denoted p.S144_S146del. The c.423_431delCTCCTCCTC variant is observed in 5/86720 (0.0058%) alleles from individuals of non-Finnish European background, and 5/190079 total alleles in large population cohorts (Lek et al., 2016). We interpret c.423_431delCTCCTCCTC as a likely pathogenic variant. -

X-linked intellectual disability Cabezas type Uncertain:1
Jan 26, 2019
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This variant, c.423_431del, results in the deletion of 3 amino acid(s) of the CUL4B protein (p.Ser144_Ser146del), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (rs756411375, ExAC 0.004%), including at least one homozygous and/or hemizygous individual. This variant has not been reported in the literature in individuals with CUL4B-related conditions. ClinVar contains an entry for this variant (Variation ID: 504176). Experimental studies and prediction algorithms are not available for this variant, and the functional significance of the affected amino acid(s) is currently unknown. -

CUL4B-related disorder Uncertain:1
Jan 31, 2024
PreventionGenetics, part of Exact Sciences
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

The CUL4B c.423_431del9 variant is predicted to result in an in-frame deletion (p.Ser144_Ser146del). To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0057% of alleles in individuals of European (Non-Finnish) descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
9.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs754330779; hg19: chrX-119694116; API