NM_001164496.2:c.2005_2006delAT

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1PM2PP5

The NM_001164496.2(CFAP44):​c.2005_2006delAT​(p.Met669ValfsTer13) variant causes a frameshift change. The variant allele was found at a frequency of 0.00000439 in 1,593,672 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

CFAP44
NM_001164496.2 frameshift

Scores

Not classified

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 5.91

Publications

2 publications found
Variant links:
Genes affected
CFAP44 (HGNC:25631): (cilia and flagella associated protein 44) Enables peptidase activity. Involved in sperm axoneme assembly. Acts upstream of or within microtubule cytoskeleton organization. Predicted to be located in cytoplasm; cytoskeleton; and motile cilium. Implicated in spermatogenic failure 20. [provided by Alliance of Genome Resources, Apr 2022]
CFAP44 Gene-Disease associations (from GenCC):
  • spermatogenic failure 20
    Inheritance: AR Classification: MODERATE Submitted by: Ambry Genetics
  • non-syndromic male infertility due to sperm motility disorder
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 3-113380944-CAT-C is Pathogenic according to our data. Variant chr3-113380944-CAT-C is described in ClinVar as Pathogenic. ClinVar VariationId is 430938.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001164496.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CFAP44
NM_001164496.2
MANE Select
c.2005_2006delATp.Met669ValfsTer13
frameshift
Exon 16 of 35NP_001157968.1
CFAP44
NM_018338.3
c.2005_2006delATp.Met669ValfsTer13
frameshift
Exon 16 of 21NP_060808.2
SPICE1-CFAP44
NR_183045.1
n.4885_4886delAT
non_coding_transcript_exon
Exon 31 of 49

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CFAP44
ENST00000393845.9
TSL:5 MANE Select
c.2005_2006delATp.Met669ValfsTer13
frameshift
Exon 16 of 35ENSP00000377428.2
CFAP44
ENST00000295868.6
TSL:1
c.2005_2006delATp.Met669ValfsTer13
frameshift
Exon 16 of 21ENSP00000295868.2
SPICE1-CFAP44
ENST00000649772.1
n.*2170_*2171delAT
non_coding_transcript_exon
Exon 35 of 39ENSP00000497606.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152106
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000832
AC:
2
AN:
240364
AF XY:
0.00000769
show subpopulations
Gnomad AFR exome
AF:
0.0000638
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000466
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000347
AC:
5
AN:
1441448
Hom.:
0
AF XY:
0.00000419
AC XY:
3
AN XY:
716462
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32904
American (AMR)
AF:
0.00
AC:
0
AN:
42542
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25602
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38618
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81494
European-Finnish (FIN)
AF:
0.0000190
AC:
1
AN:
52730
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5688
European-Non Finnish (NFE)
AF:
0.00000363
AC:
4
AN:
1102406
Other (OTH)
AF:
0.00
AC:
0
AN:
59464
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74436
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41550
American (AMR)
AF:
0.0000654
AC:
1
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10584
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

ClinVar submissions as Germline

Significance:Pathogenic
Revision:no assertion criteria provided
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
-
-
Spermatogenic failure 20 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
PhyloP100
5.9
Mutation Taster
=21/179
disease causing (ClinVar)

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

Publications

Other links and lift over

dbSNP: rs780798708; hg19: chr3-113099791; API