16-56434804-G-A

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP3BS2

The NM_007006.3(NUDT21):​c.497C>T​(p.Thr166Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000346 in 1,443,186 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

NUDT21
NM_007006.3 missense

Scores

12
5
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.28
Variant links:
Genes affected
NUDT21 (HGNC:13870): (nudix hydrolase 21) The protein encoded by this gene is one subunit of a cleavage factor required for 3' RNA cleavage and polyadenylation processing. The interaction of the protein with the RNA is one of the earliest steps in the assembly of the 3' end processing complex and facilitates the recruitment of other processing factors. This gene encodes the 25kD subunit of the protein complex, which is composed of four polypeptides. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.797
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NUDT21NM_007006.3 linkuse as main transcriptc.497C>T p.Thr166Ile missense_variant 5/7 ENST00000300291.10 NP_008937.1 O43809A0A024R6W2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NUDT21ENST00000300291.10 linkuse as main transcriptc.497C>T p.Thr166Ile missense_variant 5/71 NM_007006.3 ENSP00000300291.5 O43809
ENSG00000288725ENST00000684388.1 linkuse as main transcriptn.*381C>T non_coding_transcript_exon_variant 12/14 ENSP00000507647.1 A0A804HJU2
ENSG00000288725ENST00000684388.1 linkuse as main transcriptn.*381C>T 3_prime_UTR_variant 12/14 ENSP00000507647.1 A0A804HJU2

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249318
Hom.:
0
AF XY:
0.00000741
AC XY:
1
AN XY:
134898
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000884
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000346
AC:
5
AN:
1443186
Hom.:
0
Cov.:
27
AF XY:
0.00000139
AC XY:
1
AN XY:
719090
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000456
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.0000712
Hom.:
0

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 14, 2024The c.497C>T (p.T166I) alteration is located in exon 5 (coding exon 5) of the NUDT21 gene. This alteration results from a C to T substitution at nucleotide position 497, causing the threonine (T) at amino acid position 166 to be replaced by an isoleucine (I). 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
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.18
CADD
Pathogenic
30
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.43
T;T
Eigen
Pathogenic
0.80
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
0.98
D;D
M_CAP
Benign
0.031
D
MetaRNN
Pathogenic
0.80
D;D
MetaSVM
Uncertain
0.14
D
MutationAssessor
Pathogenic
3.4
M;.
PrimateAI
Pathogenic
0.92
D
PROVEAN
Pathogenic
-5.0
D;D
REVEL
Uncertain
0.43
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.0020
D;.
Polyphen
0.68
P;.
Vest4
0.57
MVP
0.60
MPC
2.8
ClinPred
1.0
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.92
gMVP
0.88

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1195594270; hg19: chr16-56468716; API