chr19-4446132-C-A

Variant names:

• chr19-4446132-C-A
• rs754611823
• NM_025241.3:c.1117G>T

Variant summary

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

The NM_025241.3(UBXN6):​c.1117G>T​(p.Asp373Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.0000445 in 1,460,044 control chromosomes in the GnomAD database, including 1 homozygotes. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.000045 (1 hom.)
• Consequence: UBXN6 NM_025241.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.51

Genes affected

UBXN6 (HGNC:14928): (UBX domain protein 6) Involved in ERAD pathway; endosome to lysosome transport via multivesicular body sorting pathway; and macroautophagy. Located in bounding membrane of organelle and cytosol. Is extrinsic component of membrane. Part of endosome and protein-containing complex. [provided by Alliance of Genome Resources, Apr 2022]

CHAF1A (HGNC:1910): (chromatin assembly factor 1 subunit A) Chromatin assembly factor I (CAF1) is a nuclear complex consisting of p50, p60 (CHAF1B; MIM 601245), and p150 (CHAF1A) subunits that assembles histone octamers onto replicating DNA in vitro (Kaufman et al., 1995 [PubMed 7600578]).[supplied by OMIM, Mar 2008]

MIR4746 (HGNC:41904): (microRNA 4746) 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]

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
UBXN6	NM_025241.3	c.1117G>T	p.Asp373Tyr	missense_variant	Exon 10 of 11	ENST00000301281.11	NP_079517.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
UBXN6	ENST00000301281.11	c.1117G>T	p.Asp373Tyr	missense_variant	Exon 10 of 11	1	NM_025241.3	ENSP00000301281.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.0000566 AC: 14 AN: 247508 Hom.: 0 AF XY: 0.0000743 AC XY: 10 AN XY: 134510

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: 0.000458

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000445 AC: 65 AN: 1460044 Hom.: 1 Cov.: 32 AF XY: 0.0000578 AC XY: 42 AN XY: 726354

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: 0.000487

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000180

Gnomad4 OTH exome AF: 0.0000497

GnomAD4 genome Cov.: 33

ExAC AF: 0.0000577 AC: 7

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Jan 10, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1117G>T (p.D373Y) alteration is located in exon 10 (coding exon 10) of the UBXN6 gene. This alteration results from a G to T substitution at nucleotide position 1117, causing the aspartic acid (D) at amino acid position 373 to be replaced by a tyrosine (Y). 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	0.32
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.15
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.25	T;.
Eigen	Pathogenic	0.70
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Uncertain	0.90	D;D
M_CAP	Uncertain	0.099	D
MetaRNN	Uncertain	0.72	D;D
MetaSVM	Benign	-0.56	T
MutationAssessor	Uncertain	2.8	M;.
PrimateAI	Uncertain	0.51	T
PROVEAN	Pathogenic	-5.5	D;D
REVEL	Benign	0.26
Sift	Uncertain	0.0060	D;D
Sift4G	Uncertain	0.011	D;D
Polyphen		1.0	D;D
Vest4		0.71
MutPred		0.57		Loss of helix (P = 0.0237);.;
MVP		0.78
MPC		0.34
ClinPred		0.95	D
GERP RS		4.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.83
gMVP		0.58

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: rs754611823; hg19: chr19-4446129;