NM_001351169.2:c.989-1G>T

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PVS1_StrongPM2PP5

The NM_001351169.2(NT5C2):c.989-1G>T variant causes a splice acceptor, intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000071 in 1,409,032 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

NT5C2
NM_001351169.2 splice_acceptor, intron

Scores

Splicing: ADA: 1.000

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.90

Publications

1 publications found

Variant links:

Genes affected

NT5C2 (HGNC:8022): (5'-nucleotidase, cytosolic II) This gene encodes a hydrolase that serves as an important role in cellular purine metabolism by acting primarily on inosine 5'-monophosphate and other purine nucleotides. [provided by RefSeq, Oct 2011]

NT5C2 Gene-Disease associations (from GenCC):

hereditary spastic paraplegia 45
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, Orphanet

NT5C2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PVS1

Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.10142349 fraction of the gene. Cryptic splice site detected, with MaxEntScore 4, offset of -35, new splice context is: gaatgctgattttaatatAGgga. Cryptic site results in frameshift change. If cryptic site found is not functional and variant results in exon loss, it results in inframe change.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 10-103093310-C-A is Pathogenic according to our data. Variant chr10-103093310-C-A is described in ClinVar as Pathogenic. ClinVar VariationId is 100906.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001351169.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
NT5C2	NM_001351169.2	MANE Select	c.989-1G>T	splice_acceptor intron	N/A	NP_001338098.1
NT5C2	NM_001351170.2		c.1013-1G>T	splice_acceptor intron	N/A	NP_001338099.1
NT5C2	NM_001351171.2		c.1013-1G>T	splice_acceptor intron	N/A	NP_001338100.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
NT5C2	ENST00000404739.8	TSL:1 MANE Select	c.989-1G>T	splice_acceptor intron	N/A	ENSP00000383960.3
NT5C2	ENST00000343289.9	TSL:1	c.989-1G>T	splice_acceptor intron	N/A	ENSP00000339479.5
NT5C2	ENST00000674860.1		c.1013-1G>T	splice_acceptor intron	N/A	ENSP00000502816.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.10e-7

AC:

AN:

1409032

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

698302

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30888

American (AMR)

AF:

0.00

AC:

AN:

35028

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24306

East Asian (EAS)

AF:

0.00

AC:

AN:

38082

South Asian (SAS)

AF:

0.00

AC:

AN:

75170

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5588

European-Non Finnish (NFE)

AF:

9.18e-7

AC:

AN:

1089268

Other (OTH)

AF:

0.00

AC:

AN:

58292

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 45

Pathogenic:1

Jan 31, 2014

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.63

BayesDel_noAF

Pathogenic

0.43

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

Eigen

Pathogenic

1.2

Eigen_PC

Pathogenic

1.1

FATHMM_MKL

Pathogenic

1.0

PhyloP100

7.9

GERP RS

6.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=0/100

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.94

SpliceAI score (max)

0.99

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.99

Position offset: -1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over