chr13-52024766-C-T

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_021645.6(UTP14C):​c.-658C>T variant causes a 5 prime UTR premature start codon gain change. The variant allele was found at a frequency of 0.00000372 in 1,613,988 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

UTP14C
NM_021645.6 5_prime_UTR_premature_start_codon_gain

Scores

15
3

Clinical Significance

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

Conservation

PhyloP100: 5.87

Publications

1 publications found
Variant links:
Genes affected
UTP14C (HGNC:20321): (UTP14C small subunit processome component) Predicted to be involved in several processes, including meiotic cell cycle; rRNA processing; and spermatogenesis. Located in cytosol and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]
ALG11 (HGNC:32456): (ALG11 alpha-1,2-mannosyltransferase) This gene encodes a GDP-Man:Man3GlcNAc2-PP-dolichol-alpha1,2-mannosyltransferase which is localized to the cytosolic side of the endoplasmic reticulum (ER) and catalyzes the transfer of the fourth and fifth mannose residue from GDP-mannose (GDP-Man) to Man3GlcNAc2-PP-dolichol and Man4GlcNAc2-PP-dolichol resulting in the production of Man5GlcNAc2-PP-dolichol. Mutations in this gene are associated with congenital disorder of glycosylation type Ip (CDGIP). This gene overlaps but is distinct from the UTP14, U3 small nucleolar ribonucleoprotein, homolog C (yeast) gene. A pseudogene of the GDP-Man:Man3GlcNAc2-PP-dolichol-alpha1,2-mannosyltransferase has been identified on chromosome 19. [provided by RefSeq, Aug 2010]
ALG11 Gene-Disease associations (from GenCC):
  • ALG11-congenital disorder of glycosylation
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.954

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021645.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UTP14C
NM_021645.6
MANE Select
c.-658C>T
5_prime_UTR_premature_start_codon_gain
Exon 1 of 2NP_067677.4
ALG11
NM_001004127.3
MANE Select
c.1036C>Tp.Arg346Cys
missense
Exon 3 of 4NP_001004127.2Q2TAA5
UTP14C
NM_021645.6
MANE Select
c.-658C>T
5_prime_UTR
Exon 1 of 2NP_067677.4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
UTP14C
ENST00000521776.2
TSL:1 MANE Select
c.-658C>T
5_prime_UTR_premature_start_codon_gain
Exon 1 of 2ENSP00000428619.1Q5TAP6
ALG11
ENST00000521508.2
TSL:1 MANE Select
c.1036C>Tp.Arg346Cys
missense
Exon 3 of 4ENSP00000430236.1Q2TAA5
UTP14C
ENST00000521776.2
TSL:1 MANE Select
c.-658C>T
5_prime_UTR
Exon 1 of 2ENSP00000428619.1Q5TAP6

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152120
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251360
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461868
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1112000
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.438
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

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:
0.0000131
AC:
2
AN:
152120
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74302
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000483
AC:
2
AN:
41404
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:
5206
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.00000000770867), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.400
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
ALG11-congenital disorder of glycosylation (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.86
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.40
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.82
D
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.97
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.27
D
MetaRNN
Pathogenic
0.95
D
MetaSVM
Pathogenic
0.82
D
MutationAssessor
Pathogenic
4.4
H
PhyloP100
5.9
PrimateAI
Uncertain
0.72
T
PROVEAN
Pathogenic
-8.0
D
REVEL
Pathogenic
0.69
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.92
MutPred
0.81
Gain of catalytic residue at G344 (P = 0.0071)
MVP
0.95
MPC
0.34
ClinPred
1.0
D
GERP RS
6.2
PromoterAI
-0.039
Neutral
Varity_R
0.98
gMVP
0.80
Mutation Taster
=9/91
disease causing

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: rs201343222; hg19: chr13-52598902; COSMIC: COSV104721327; API