22-20314764-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_033257.4(DGCR6L):​c.574C>T​(p.Arg192Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000174 in 1,612,192 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. R192Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

DGCR6L
NM_033257.4 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.91

Publications

0 publications found
Variant links:
Genes affected
DGCR6L (HGNC:18551): (DiGeorge syndrome critical region gene 6 like) This gene, the result of a duplication at this locus, is one of two functional genes encoding nearly identical proteins that have similar expression patterns. The product of this gene is a protein that shares homology with the Drosophila gonadal protein, expressed in gonadal tissues and germ cells, and with the human laminin gamma-1 chain that functions in cell attachment and migration. This gene is located in a region of chromosome 22 implicated in the DiGeorge syndrome, one facet of a broader collection of anomalies referred to as the CATCH 22 syndrome. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.12785742).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DGCR6LNM_033257.4 linkc.574C>T p.Arg192Trp missense_variant Exon 5 of 5 ENST00000248879.8 NP_150282.2 Q9BY27

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DGCR6LENST00000248879.8 linkc.574C>T p.Arg192Trp missense_variant Exon 5 of 5 1 NM_033257.4 ENSP00000248879.2 Q9BY27
DGCR6LENST00000443409.1 linkn.*179C>T non_coding_transcript_exon_variant Exon 4 of 4 1 ENSP00000403341.1 F8WCX1
DGCR6LENST00000443409.1 linkn.*179C>T 3_prime_UTR_variant Exon 4 of 4 1 ENSP00000403341.1 F8WCX1
DGCR6LENST00000405465.3 linkc.460C>T p.Arg154Trp missense_variant Exon 4 of 4 3 ENSP00000386052.3 B5MCQ4

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152196
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000160
AC:
4
AN:
250018
AF XY:
0.0000295
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000171
AC:
25
AN:
1459996
Hom.:
0
Cov.:
31
AF XY:
0.0000193
AC XY:
14
AN XY:
726296
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33442
American (AMR)
AF:
0.0000224
AC:
1
AN:
44698
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26118
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39688
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86178
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53092
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4748
European-Non Finnish (NFE)
AF:
0.0000189
AC:
21
AN:
1111784
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60248
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.0000197
AC:
3
AN:
152196
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74350
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41454
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
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
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:
0.0000565
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Aug 08, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.574C>T (p.R192W) alteration is located in exon 5 (coding exon 5) of the DGCR6L gene. This alteration results from a C to T substitution at nucleotide position 574, causing the arginine (R) at amino acid position 192 to be replaced by a tryptophan (W). 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
Benign
0.083
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.59
CADD
Benign
22
DANN
Benign
0.85
DEOGEN2
Benign
0.0060
T;T
Eigen
Benign
-0.36
Eigen_PC
Benign
-0.43
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.34
T;T
M_CAP
Benign
0.0099
T
MetaRNN
Benign
0.13
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.69
N;.
PhyloP100
2.9
PROVEAN
Benign
-1.6
N;N
REVEL
Benign
0.23
Sift
Benign
0.20
T;T
Sift4G
Benign
0.088
T;T
Polyphen
0.97
D;.
Vest4
0.12
MutPred
0.39
Loss of disorder (P = 0.0091);.;
MVP
0.59
MPC
0.39
ClinPred
0.19
T
GERP RS
1.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.040
gMVP
0.22
Mutation Taster
=91/9
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: rs1056805; hg19: chr22-20302287; API