rs121917767

Variant names:

• chr4-41260751-C-G
• rs121917767
• NM_004181.5:c.279C>G

Your query was ambiguous. Multiple possible variants found:

• chr4-41260751-C-G
• chr4-41260751-C-T
• chr4-41260751-C-A

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_004181.5(UCHL1):​c.279C>G​(p.Ile93Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,614,054 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as risk factor (no stars). Synonymous variant affecting the same amino acid position (i.e. I93I) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: UCHL1 NM_004181.5 missense
• Clinical Significance: risk factor no assertion criteria provided O:1
• Conservation: PhyloP100: -0.384
• Publications: 130 publications found

Genes affected

UCHL1 (HGNC:12513): (ubiquitin C-terminal hydrolase L1) The protein encoded by this gene belongs to the peptidase C12 family. This enzyme is a thiol protease that hydrolyzes a peptide bond at the C-terminal glycine of ubiquitin. This gene is specifically expressed in the neurons and in cells of the diffuse neuroendocrine system. Mutations in this gene may be associated with Parkinson disease.[provided by RefSeq, Sep 2009]

UCHL1 Gene-Disease associations (from GenCC):

• hereditary spastic paraplegia

  Inheritance: AD, AR Classification: DEFINITIVE, MODERATE Submitted by: ClinGen
• spastic paraplegia 79A, autosomal dominant, with ataxia

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• early-onset progressive neurodegeneration-blindness-ataxia-spasticity syndrome

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
• Parkinson disease 5, autosomal dominant, susceptibility to

  Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.846

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004181.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	UCHL1	NM_004181.5	MANE Select	c.279C>G	p.Ile93Met	missense	Exon 4 of 9	NP_004172.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	UCHL1	ENST00000284440.9	TSL:1 MANE Select	c.279C>G	p.Ile93Met	missense	Exon 4 of 9	ENSP00000284440.4	P09936-1
	UCHL1	ENST00000512788.1	TSL:3	c.279C>G	p.Ile93Met	missense	Exon 4 of 9	ENSP00000423623.1	D6R956
	UCHL1	ENST00000503431.5	TSL:3	c.279C>G	p.Ile93Met	missense	Exon 5 of 10	ENSP00000422542.1	P09936-1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152168 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251488 AF XY: 0.00000736

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461886 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727242

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1112010

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152168 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74320

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 41444

American (AMR) AF: 0.00 AC: 0 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10606

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68038

Other (OTH) AF: 0.00 AC: 0 AN: 2086

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: risk factor

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
-	-	-	Parkinson disease 5, autosomal dominant, susceptibility to (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.27
BayesDel_addAF	Uncertain	0.069	T
BayesDel_noAF	Benign	-0.14
CADD	Benign	12
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.44	T
Eigen	Benign	-0.82
Eigen_PC	Benign	-0.98
FATHMM_MKL	Benign	0.26	N
LIST_S2	Uncertain	0.93	D
M_CAP	Benign	0.053	D
MetaRNN	Pathogenic	0.85	D
MetaSVM	Benign	-0.55	T
MutationAssessor	Benign	2.0	M
PhyloP100		-0.38
PrimateAI	Benign	0.45	T
PROVEAN	Uncertain	-2.6	D
REVEL	Uncertain	0.34
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0020	D
Polyphen		0.40	B
Vest4		0.48
MutPred		0.88		Loss of catalytic residue at A98 (P = 0.353)
MVP		0.78
MPC		1.5
ClinPred		0.92	D
GERP RS		-2.3
Varity_R		0.83
gMVP		0.61
Mutation Taster		=3/97	disease causing

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

Other links and lift over

dbSNP: rs121917767; hg19: chr4-41262768;