8-116766611-T-A

Variant names:

• chr8-116766611-T-A
• rs1033126900
• NM_032334.3:c.8T>A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_032334.3(UTP23):​c.8T>A​(p.Ile3Asn) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: UTP23 NM_032334.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.08

Genes affected

UTP23 (HGNC:28224): (UTP23 small subunit processome component) Enables mRNA 3'-UTR binding activity and mRNA 5'-UTR binding activity. Predicted to be involved in rRNA processing. Predicted to act upstream of or within endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA). Predicted to be part of small-subunit processome. Predicted to be active in nucleolus. Implicated in colorectal adenocarcinoma. [provided by Alliance of Genome Resources, Apr 2022]

EIF3H (HGNC:3273): (eukaryotic translation initiation factor 3 subunit H) Enables deubiquitinase activity. Contributes to translation initiation factor activity. Involved in negative regulation of proteasomal ubiquitin-dependent protein catabolic process and translational initiation. Located in extracellular exosome and membrane. Part of eukaryotic translation initiation factor 3 complex. Implicated in breast cancer; prostate cancer; and prostate carcinoma. Biomarker of prostate cancer. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
UTP23	NM_032334.3	c.8T>A	p.Ile3Asn	missense_variant	Exon 1 of 3	ENST00000309822.7	NP_115710.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UTP23	ENST00000309822.7	c.8T>A	p.Ile3Asn	missense_variant	Exon 1 of 3	1	NM_032334.3	ENSP00000308332.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

Bravo AF: 0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

May 28, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.8T>A (p.I3N) alteration is located in exon 1 (coding exon 1) of the UTP23 gene. This alteration results from a T to A substitution at nucleotide position 8, causing the isoleucine (I) at amino acid position 3 to be replaced by an asparagine (N). 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	0.86
BayesDel_addAF	Uncertain	0.066	T
BayesDel_noAF	Benign	-0.14
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Benign	0.17	T;T;T
Eigen	Pathogenic	0.80
Eigen_PC	Pathogenic	0.76
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.90	D;D;D
M_CAP	Benign	0.056	D
MetaRNN	Uncertain	0.57	D;D;D
MetaSVM	Benign	-0.74	T
MutationAssessor	Uncertain	2.9	M;.;.
PrimateAI	Pathogenic	0.88	D
PROVEAN	Pathogenic	-5.4	D;D;D
REVEL	Uncertain	0.29
Sift	Uncertain	0.0020	D;D;D
Sift4G	Uncertain	0.0030	D;D;D
Polyphen		1.0	D;.;.
Vest4		0.56
MutPred		0.29		Loss of catalytic residue at I3 (P = 0.0864);Loss of catalytic residue at I3 (P = 0.0864);Loss of catalytic residue at I3 (P = 0.0864);
MVP		0.47
MPC		1.0
ClinPred		1.0	D
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.6
Varity_R		0.89
gMVP		0.65

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

Other links and lift over

dbSNP: rs1033126900; hg19: chr8-117778850;