rs192011911

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_016302.4(CRBN):​c.20A>G​(p.Gln7Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000459 in 1,613,136 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q7E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000041 ( 0 hom. )

Consequence

CRBN
NM_016302.4 missense

Scores

1
17

Clinical Significance

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

Conservation

PhyloP100: -0.0210

Publications

1 publications found
Variant links:
Genes affected
CRBN (HGNC:30185): (cereblon) This gene encodes a protein related to the Lon protease protein family. In rodents and other mammals this gene product is found in the cytoplasm localized with a calcium channel membrane protein, and is thought to play a role in brain development. Mutations in this gene are associated with autosomal recessive nonsyndromic cognitive disability. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2010]
CRBN Gene-Disease associations (from GenCC):
  • intellectual disability
    Inheritance: AR Classification: MODERATE Submitted by: ClinGen
  • autosomal recessive non-syndromic intellectual disability
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • intellectual disability, autosomal recessive 2
    Inheritance: AR Classification: LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.008083016).
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.0000919 (14/152342) while in subpopulation AMR AF = 0.000653 (10/15306). AF 95% confidence interval is 0.000354. There are 0 homozygotes in GnomAd4. There are 7 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016302.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CRBN
NM_016302.4
MANE Select
c.20A>Gp.Gln7Arg
missense
Exon 1 of 11NP_057386.2
CRBN
NM_001173482.1
c.20A>Gp.Gln7Arg
missense
Exon 1 of 11NP_001166953.1Q96SW2-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CRBN
ENST00000231948.9
TSL:1 MANE Select
c.20A>Gp.Gln7Arg
missense
Exon 1 of 11ENSP00000231948.4Q96SW2-1
CRBN
ENST00000432408.6
TSL:1
c.20A>Gp.Gln7Arg
missense
Exon 1 of 11ENSP00000412499.2Q96SW2-2
CRBN
ENST00000450014.1
TSL:1
c.5A>Gp.Gln2Arg
missense
Exon 1 of 5ENSP00000392073.1J3QT51

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152224
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000654
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
GnomAD2 exomes
AF:
0.000150
AC:
37
AN:
247092
AF XY:
0.000141
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000931
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000359
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000411
AC:
60
AN:
1460794
Hom.:
0
Cov.:
31
AF XY:
0.0000454
AC XY:
33
AN XY:
726766
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33458
American (AMR)
AF:
0.000873
AC:
39
AN:
44686
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26100
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39680
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86194
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53082
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000144
AC:
16
AN:
1111576
Other (OTH)
AF:
0.0000498
AC:
3
AN:
60254
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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
GnomAD4 genome
AF:
0.0000919
AC:
14
AN:
152342
Hom.:
0
Cov.:
33
AF XY:
0.0000940
AC XY:
7
AN XY:
74502
show subpopulations
African (AFR)
AF:
0.0000240
AC:
1
AN:
41590
American (AMR)
AF:
0.000653
AC:
10
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.529
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
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:
0.00
Hom.:
0
Bravo
AF:
0.000102
ExAC
AF:
0.000124
AC:
15
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.069
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
8.8
DANN
Benign
0.66
DEOGEN2
Benign
0.019
T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.0020
N
LIST_S2
Benign
0.45
T
M_CAP
Benign
0.0059
T
MetaRNN
Benign
0.0081
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N
PhyloP100
-0.021
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-0.47
N
REVEL
Benign
0.037
Sift
Benign
0.62
T
Sift4G
Benign
0.26
T
Polyphen
0.0
B
Vest4
0.12
MVP
0.25
MPC
0.092
ClinPred
0.018
T
GERP RS
-0.68
PromoterAI
0.055
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.073
gMVP
0.32
Mutation Taster
=95/5
polymorphism

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

Other links and lift over

dbSNP: rs192011911; hg19: chr3-3221352; API