4-1349792-A-G

Position:

• chr4-1349792-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_020894.4(UVSSA):​c.367A>G​(p.Lys123Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: UVSSA NM_020894.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.72

Genes affected

UVSSA (HGNC:29304): (UV stimulated scaffold protein A) The protein encoded by this gene appears to be involved in ubiquitination and dephosphorylation of RNA polymerase II subunits that stall after UV irradiation. The encoded protein interacts with several members of the nucleotide excision repair complex, and is thought to be involved in the transcription-coupled nucleotide excision repair (TC-NER) pathway to help remove lesions in the DNA that block transcription. Defects in this gene can cause UV-sensitive syndrome 3. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.30675054).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
UVSSA	NM_020894.4	c.367A>G	p.Lys123Glu	missense_variant	3/14	ENST00000389851.10	NP_065945.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
UVSSA	ENST00000389851.10	c.367A>G	p.Lys123Glu	missense_variant	3/14	1	NM_020894.4	ENSP00000374501	P2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.071	T;T;T
Eigen	Benign	-0.058
Eigen_PC	Benign	-0.15
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.70	.;.;T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.31	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.4	M;M;M
MutationTaster	Benign	0.83	D;D;D
PrimateAI	Benign	0.33	T
PROVEAN	Uncertain	-2.5	D;D;D
REVEL	Benign	0.090
Sift	Uncertain	0.010	D;D;D
Sift4G	Uncertain	0.042	D;D;D
Polyphen		0.85	P;P;P
Vest4		0.50
MutPred		0.37		Loss of MoRF binding (P = 0.0039);Loss of MoRF binding (P = 0.0039);Loss of MoRF binding (P = 0.0039);
MVP		0.061
MPC		0.032
ClinPred		0.80	D
GERP RS		2.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.26
gMVP		0.051

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: rs387907163; hg19: chr4-1343580;