chr11-47472254-C-A

Variant names:

• chr11-47472254-C-A
• rs145495807
• NM_001376376.1:c.1521G>T

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_001376376.1(CELF1):​c.1521G>T​(p.Ser507Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,832 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. S507S) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CELF1 NM_001376376.1 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0270
• Publications: 0 publications found

Genes affected

CELF1 (HGNC:2549): (CUGBP Elav-like family member 1) Members of the CELF/BRUNOL protein family contain two N-terminal RNA recognition motif (RRM) domains, one C-terminal RRM domain, and a divergent segment of 160-230 aa between the second and third RRM domains. Members of this protein family regulate pre-mRNA alternative splicing and may also be involved in mRNA editing, and translation. This gene may play a role in myotonic dystrophy type 1 (DM1) via interactions with the dystrophia myotonica-protein kinase (DMPK) gene. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.26).
• BP7: Synonymous conserved (PhyloP=-0.027 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001376376.1. 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
	CELF1	NM_001376376.1	MANE Select	c.1521G>T	p.Ser507Ser	synonymous	Exon 15 of 15	NP_001363305.1	G5EA30
	CELF1	NM_001330272.2		c.1521G>T	p.Ser507Ser	synonymous	Exon 15 of 16	NP_001317201.1	G5EA30
	CELF1	NM_001376369.1		c.1521G>T	p.Ser507Ser	synonymous	Exon 15 of 15	NP_001363298.1	G5EA30

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CELF1	ENST00000687097.1	MANE Select	c.1521G>T	p.Ser507Ser	synonymous	Exon 15 of 15	ENSP00000508525.1	G5EA30
	CELF1	ENST00000532048.5	TSL:1	c.1515G>T	p.Ser505Ser	synonymous	Exon 15 of 16	ENSP00000435926.1	Q92879-4
	CELF1	ENST00000358597.7	TSL:1	c.1437G>T	p.Ser479Ser	synonymous	Exon 12 of 13	ENSP00000351409.3	Q92879-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461832 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 727218

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

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: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5744

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111978

Other (OTH) AF: 0.00 AC: 0 AN: 60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.26
CADD	Benign	8.5
DANN	Benign	0.68
PhyloP100		-0.027
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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: rs145495807; hg19: chr11-47493806;