rs1554861288

Variant names:

• chr10-104147999-CT-C
• rs1554861288
• NM_025145.7:c.3661-2delA

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PVS1_Moderate PM2 PP5

The NM_025145.7(CFAP43):​c.3661-2delA variant causes a splice acceptor, intron change. The variant was absent in control chromosomes in GnomAD project. 1/1 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CFAP43 NM_025145.7 splice_acceptor, intron
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 6.08
• Publications: 2 publications found

Genes affected

CFAP43 (HGNC:26684): (cilia and flagella associated protein 43) This gene encodes a member of the cilia- and flagella-associated protein family. [provided by RefSeq, Sep 2016]

CFAP43 Gene-Disease associations (from GenCC):

• spermatogenic failure 19

  Inheritance: AR Classification: DEFINITIVE, LIMITED Submitted by: Ambry Genetics, ClinGen
• non-syndromic male infertility due to sperm motility disorder

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• normal pressure hydrocephalus

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics, ClinGen
• primary ciliary dyskinesia

  Inheritance: Unknown Classification: NO_KNOWN Submitted by: ClinGen

ENSG00000294028 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.021608643 fraction of the gene. Cryptic splice site detected, with MaxEntScore 3.1, offset of -42, new splice context is: tatagaaaatattgtctcAGgtg. Cryptic site results in inframe 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 10-104147999-CT-C is Pathogenic according to our data. Variant chr10-104147999-CT-C is described in ClinVar as Pathogenic. ClinVar VariationId is 523144.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_025145.7. 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
	CFAP43	NM_025145.7	MANE Select	c.3661-2delA		splice_acceptor intron	N/A	NP_079421.5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CFAP43	ENST00000357060.8	TSL:1 MANE Select	c.3661-2delA		splice_acceptor intron	N/A	ENSP00000349568.3	Q8NDM7-1
	CFAP43	ENST00000434629.5	TSL:1	c.1741-2delA		splice_acceptor intron	N/A	ENSP00000391364.1	H7BZT8
	CFAP43	ENST00000956220.1		c.3663+4607delA		intron	N/A	ENSP00000626279.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 25

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Spermatogenic failure 19 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		6.1
Mutation Taster		=0/100	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
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

Other links and lift over

dbSNP: rs1554861288; hg19: chr10-105907757;