X-48476947-A-C

Variant names:

• chrX-48476947-A-C
• rs2268954
• NM_012280.4:c.-88+551A>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_012280.4(FTSJ1):​c.-88+551A>C variant causes a intron 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 21)
• Consequence: FTSJ1 NM_012280.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.944
• Publications: 2 publications found

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]

FTSJ1 Gene-Disease associations (from GenCC):

• intellectual disability, X-linked 9

  Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
• X-linked complex neurodevelopmental disorder

  Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
• non-syndromic X-linked intellectual disability

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.76).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012280.4. 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
	FTSJ1	NM_012280.4	MANE Select	c.-88+551A>C		intron	N/A	NP_036412.1	A0A024QYX5
	FTSJ1	NM_001441197.1		c.-88+551A>C		intron	N/A	NP_001428126.1
	FTSJ1	NM_001441198.1		c.-88+279A>C		intron	N/A	NP_001428127.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FTSJ1	ENST00000348411.3	TSL:1 MANE Select	c.-88+551A>C		intron	N/A	ENSP00000326948.2	Q9UET6-1
	FTSJ1	ENST00000898808.1		c.-88+279A>C		intron	N/A	ENSP00000568867.1
	FTSJ1	ENST00000898812.1		c.-86+551A>C		intron	N/A	ENSP00000568871.1

Frequencies

GnomAD3 genomes Cov.: 21

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 21

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.76
CADD	Benign	7.7
DANN	Benign	0.77
PhyloP100		0.94

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: rs2268954; hg19: chrX-48335335;