chrX-48478615-A-G
Variant summary
Our verdict is Pathogenic. Variant got 15 ACMG points: 15P and 0B. PVS1PM2PP3_StrongPP5
The NM_012280.4(FTSJ1):c.192-2A>G variant causes a splice acceptor 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. 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: 23)
Consequence
FTSJ1
NM_012280.4 splice_acceptor
NM_012280.4 splice_acceptor
Scores
1
4
Splicing: ADA: 1.000
2
Clinical Significance
Conservation
PhyloP100: 3.37
Genes affected
FTSJ1 (HGNC:13254): (FtsJ RNA 2'-O-methyltransferase 1) This gene encodes a member of the methyltransferase superfamily. The encoded protein localizes to the nucleolus, binds to S-adenosylmethionine, and may be involved in the processing and modification of ribosomal RNA. Mutations in this gene are associated with cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 15 ACMG points.
PVS1
?
Splicing variant, LoF is a know mechanism of disease, Cryptic splice site detected, with MaxEntScore 5.5, offset of 40, new splice context is: tggtggctgtggacctgcAGgct. Cryptic site results in frameshift change. If cryptic site found is not functional and variant results in exon loss, it results in frameshift change.
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
?
Variant X-48478615-A-G is Pathogenic according to our data. Variant chrX-48478615-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 10897.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chrX-48478615-A-G is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
FTSJ1 | NM_012280.4 | c.192-2A>G | splice_acceptor_variant | ENST00000348411.3 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
FTSJ1 | ENST00000348411.3 | c.192-2A>G | splice_acceptor_variant | 1 | NM_012280.4 | P4 |
Frequencies
GnomAD3 genomes ? Cov.: 23
GnomAD3 genomes
?
Cov.:
23
GnomAD4 exome Cov.: 30
GnomAD4 exome
Cov.:
30
GnomAD4 genome ? Cov.: 23
GnomAD4 genome
?
Cov.:
23
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
Intellectual disability, X-linked 9 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Sep 01, 2004 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
Cadd
Pathogenic
Dann
Benign
FATHMM_MKL
Uncertain
D
MutationTaster
Benign
D;D;D;D
GERP RS
Splicing
Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
dbscSNV1_RF
Pathogenic
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_AG_spliceai
Position offset: 10
DS_AL_spliceai
Position offset: 2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at