20-20074346-G-A

Variant names:

• chr20-20074346-G-A
• rs148268644
• NM_015585.4:c.339G>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_015585.4(CFAP61):​c.339G>A​(p.Glu113Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,864 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.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CFAP61 NM_015585.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.950
• Publications: 0 publications found

Genes affected

CFAP61 (HGNC:15872): (cilia and flagella associated protein 61) Predicted to be involved in cilium movement and cilium organization. Predicted to be located in axoneme and motile cilium. Predicted to colocalize with radial spoke stalk. [provided by Alliance of Genome Resources, Apr 2022]

ENSG00000309008 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.53).
• BP7: Synonymous conserved (PhyloP=0.95 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015585.4. 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
	CFAP61	NM_015585.4	MANE Select	c.339G>A	p.Glu113Glu	synonymous	Exon 4 of 27	NP_056400.3
	CFAP61	NM_001167816.1		c.339G>A	p.Glu113Glu	synonymous	Exon 3 of 13	NP_001161288.1	Q8NHU2-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CFAP61	ENST00000245957.10	TSL:1 MANE Select	c.339G>A	p.Glu113Glu	synonymous	Exon 4 of 27	ENSP00000245957.5	Q8NHU2-1
	CFAP61	ENST00000451767.6	TSL:1	c.339G>A	p.Glu113Glu	synonymous	Exon 3 of 13	ENSP00000414537.2	Q8NHU2-3
	CFAP61	ENST00000340348.10	TSL:1	c.201G>A	p.Glu67Glu	synonymous	Exon 3 of 11	ENSP00000345553.6	F8W6E2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461864 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727236

⚠️ 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: 33476

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

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39700

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

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

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

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111988

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

⚠️ 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	-0.53
CADD	Benign	8.3
DANN	Benign	0.73
PhyloP100		0.95
PromoterAI		-0.038	Neutral

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: rs148268644; hg19: chr20-20054990;