NM_022720.7:c.43G>A

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_022720.7(DGCR8):​c.43G>A​(p.Ala15Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000106 in 1,610,296 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000082 ( 0 hom. )

Consequence

DGCR8
NM_022720.7 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 2.02

Publications

4 publications found
Variant links:
Genes affected
DGCR8 (HGNC:2847): (DGCR8 microprocessor complex subunit) This gene encodes a subunit of the microprocessor complex which mediates the biogenesis of microRNAs from the primary microRNA transcript. The encoded protein is a double-stranded RNA binding protein that functions as the non-catalytic subunit of the microprocessor complex. This protein is required for binding the double-stranded RNA substrate and facilitates cleavage of the RNA by the ribonuclease III protein, Drosha. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jun 2010]
MIR1306 (HGNC:35371): (microRNA 1306) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]
MIR3618 (HGNC:38937): (microRNA 3618) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.01564297).
BS2
High AC in GnomAd4 at 51 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022720.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DGCR8
NM_022720.7
MANE Select
c.43G>Ap.Ala15Thr
missense
Exon 2 of 14NP_073557.3
DGCR8
NM_001190326.2
c.43G>Ap.Ala15Thr
missense
Exon 2 of 13NP_001177255.1Q8WYQ5-3
MIR1306
NR_031706.1
n.-52G>A
upstream_gene
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
DGCR8
ENST00000351989.8
TSL:1 MANE Select
c.43G>Ap.Ala15Thr
missense
Exon 2 of 14ENSP00000263209.3Q8WYQ5-1
DGCR8
ENST00000407755.2
TSL:1
c.43G>Ap.Ala15Thr
missense
Exon 2 of 13ENSP00000384726.1Q8WYQ5-3
DGCR8
ENST00000495826.5
TSL:1
n.187G>A
non_coding_transcript_exon
Exon 1 of 12

Frequencies

GnomAD3 genomes
AF:
0.000335
AC:
51
AN:
152222
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00116
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000112
AC:
28
AN:
249126
AF XY:
0.0000668
show subpopulations
Gnomad AFR exome
AF:
0.00136
Gnomad AMR exome
AF:
0.0000581
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000356
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000823
AC:
120
AN:
1457956
Hom.:
0
Cov.:
32
AF XY:
0.0000759
AC XY:
55
AN XY:
724788
show subpopulations
African (AFR)
AF:
0.00138
AC:
46
AN:
33412
American (AMR)
AF:
0.0000898
AC:
4
AN:
44528
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26032
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39610
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86120
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52390
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.0000577
AC:
64
AN:
1109944
Other (OTH)
AF:
0.0000831
AC:
5
AN:
60162
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
9
18
28
37
46
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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:
0.000335
AC:
51
AN:
152340
Hom.:
0
Cov.:
32
AF XY:
0.000282
AC XY:
21
AN XY:
74496
show subpopulations
African (AFR)
AF:
0.00115
AC:
48
AN:
41578
American (AMR)
AF:
0.0000653
AC:
1
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
3
6
10
13
16
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:
0.0000980
Hom.:
0
Bravo
AF:
0.000329
ESP6500AA
AF:
0.00136
AC:
6
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000140
AC:
17

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
DGCR8-related disorder (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.069
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.064
T
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.21
FATHMM_MKL
Uncertain
0.76
D
LIST_S2
Benign
0.70
T
M_CAP
Benign
0.0026
T
MetaRNN
Benign
0.016
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.20
N
PhyloP100
2.0
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-0.27
N
REVEL
Benign
0.045
Sift
Benign
0.069
T
Sift4G
Benign
0.25
T
Polyphen
0.0
B
Vest4
0.14
MVP
0.20
MPC
0.47
ClinPred
0.013
T
GERP RS
2.0
PromoterAI
0.016
Neutral
RBP_binding_hub_radar
1.0
RBP_regulation_power_radar
2.8
Varity_R
0.034
gMVP
0.085
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs140782334; hg19: chr22-20073529; COSMIC: COSV61225631; COSMIC: COSV61225631; API