rs3917223

Positions:

• chr15-42963993-T-A
• chr15-42963993-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_174916.3(UBR1):​c.4642A>T​(p.Thr1548Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1548A) has been classified as Benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: UBR1 NM_174916.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.99

Genes affected

UBR1 (HGNC:16808): (ubiquitin protein ligase E3 component n-recognin 1) The N-end rule pathway is one proteolytic pathway of the ubiquitin system. The recognition component of this pathway, encoded by this gene, binds to a destabilizing N-terminal residue of a substrate protein and participates in the formation of a substrate-linked multiubiquitin chain. This leads to the eventual degradation of the substrate protein. The protein described in this record has a RING-type zinc finger and a UBR-type zinc finger. Mutations in this gene have been associated with Johanson-Blizzard syndrome. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), UBR1. . Gene score misZ 2.3964 (greater than the threshold 3.09). Trascript score misZ 3.2935 (greater than threshold 3.09). GenCC has associacion of gene with Johanson-Blizzard syndrome.
• BP4: Computational evidence support a benign effect (MetaRNN=0.20104316).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
UBR1	NM_174916.3	c.4642A>T	p.Thr1548Ser	missense_variant	42/47	ENST00000290650.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
UBR1	ENST00000290650.9	c.4642A>T	p.Thr1548Ser	missense_variant	42/47	1	NM_174916.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.085
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.51
CADD	Benign	19
DANN	Benign	0.96
DEOGEN2	Benign	0.087	T
Eigen	Benign	-0.33
Eigen_PC	Benign	-0.13
FATHMM_MKL	Uncertain	0.81	D
LIST_S2	Benign	0.75	T
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.34	N
MutationTaster	Benign	0.97	D;D
PrimateAI	Uncertain	0.51	T
PROVEAN	Benign	-0.57	N
REVEL	Benign	0.048
Sift	Benign	0.36	T
Sift4G	Benign	0.81	T
Polyphen		0.16	B
Vest4		0.26
MutPred		0.28		Loss of catalytic residue at F1551 (P = 0.1681);
MVP		0.55
MPC		0.18
ClinPred		0.77	D
GERP RS		4.7
Varity_R		0.098
gMVP		0.14

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs3917223; hg19: chr15-43256191;