NM_001256789.3:c.3439-18C>T

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001256789.3(CACNA1F):​c.3439-18C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0026 in 1,207,806 control chromosomes in the GnomAD database, including 5 homozygotes. There are 1,084 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0019 ( 0 hom., 51 hem., cov: 22)
Exomes 𝑓: 0.0027 ( 5 hom. 1033 hem. )

Consequence

CACNA1F
NM_001256789.3 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 1.20

Publications

0 publications found
Variant links:
Genes affected
CACNA1F (HGNC:1393): (calcium voltage-gated channel subunit alpha1 F) This gene encodes a multipass transmembrane protein that functions as an alpha-1 subunit of the voltage-dependent calcium channel, which mediates the influx of calcium ions into the cell. The encoded protein forms a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. Mutations in this gene can cause X-linked eye disorders, including congenital stationary night blindness type 2A, cone-rod dystropy, and Aland Island eye disease. Alternatively spliced transcript variants encoding multiple isoforms have been observed. [provided by RefSeq, Aug 2013]
CACNA1F Gene-Disease associations (from GenCC):
  • Aland island eye disease
    Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae)
  • inherited retinal dystrophy
    Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
  • congenital stationary night blindness 2A
    Inheritance: XL Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • X-linked cone-rod dystrophy 3
    Inheritance: XL Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • cone-rod dystrophy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • congenital stationary night blindness
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
Variant X-49215262-G-A is Benign according to our data. Variant chrX-49215262-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 445846.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00189 (209/110691) while in subpopulation SAS AF = 0.0043 (11/2560). AF 95% confidence interval is 0.00241. There are 0 homozygotes in GnomAd4. There are 51 alleles in the male GnomAd4 subpopulation. Median coverage is 22. This position passed quality control check.
BS2
High AC in GnomAd4 at 209 XL,AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNA1FNM_001256789.3 linkc.3439-18C>T intron_variant Intron 28 of 47 ENST00000323022.10 NP_001243718.1 O60840-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNA1FENST00000323022.10 linkc.3439-18C>T intron_variant Intron 28 of 47 1 NM_001256789.3 ENSP00000321618.6 O60840-2
CACNA1FENST00000376265.2 linkc.3472-18C>T intron_variant Intron 28 of 47 1 ENSP00000365441.2 O60840-1
CACNA1FENST00000376251.5 linkc.3277-18C>T intron_variant Intron 28 of 47 1 ENSP00000365427.1 O60840-4

Frequencies

GnomAD3 genomes
AF:
0.00190
AC:
210
AN:
110640
Hom.:
0
Cov.:
22
show subpopulations
Gnomad AFR
AF:
0.000792
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00172
Gnomad ASJ
AF:
0.00686
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00428
Gnomad FIN
AF:
0.000505
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.00240
Gnomad OTH
AF:
0.00405
GnomAD2 exomes
AF:
0.00278
AC:
504
AN:
181566
AF XY:
0.00314
show subpopulations
Gnomad AFR exome
AF:
0.000537
Gnomad AMR exome
AF:
0.00235
Gnomad ASJ exome
AF:
0.00590
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000382
Gnomad NFE exome
AF:
0.00272
Gnomad OTH exome
AF:
0.00400
GnomAD4 exome
AF:
0.00268
AC:
2937
AN:
1097115
Hom.:
5
Cov.:
32
AF XY:
0.00285
AC XY:
1033
AN XY:
362507
show subpopulations
African (AFR)
AF:
0.000568
AC:
15
AN:
26389
American (AMR)
AF:
0.00267
AC:
94
AN:
35144
Ashkenazi Jewish (ASJ)
AF:
0.00511
AC:
99
AN:
19377
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30200
South Asian (SAS)
AF:
0.00702
AC:
379
AN:
54021
European-Finnish (FIN)
AF:
0.000247
AC:
10
AN:
40465
Middle Eastern (MID)
AF:
0.0104
AC:
43
AN:
4132
European-Non Finnish (NFE)
AF:
0.00254
AC:
2138
AN:
841328
Other (OTH)
AF:
0.00345
AC:
159
AN:
46059
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
108
215
323
430
538
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
84
168
252
336
420
<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:
0.00189
AC:
209
AN:
110691
Hom.:
0
Cov.:
22
AF XY:
0.00155
AC XY:
51
AN XY:
32897
show subpopulations
African (AFR)
AF:
0.000790
AC:
24
AN:
30388
American (AMR)
AF:
0.00172
AC:
18
AN:
10460
Ashkenazi Jewish (ASJ)
AF:
0.00686
AC:
18
AN:
2624
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3500
South Asian (SAS)
AF:
0.00430
AC:
11
AN:
2560
European-Finnish (FIN)
AF:
0.000505
AC:
3
AN:
5937
Middle Eastern (MID)
AF:
0.00926
AC:
2
AN:
216
European-Non Finnish (NFE)
AF:
0.00240
AC:
127
AN:
52825
Other (OTH)
AF:
0.00400
AC:
6
AN:
1500
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
8
17
25
34
42
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00232
Hom.:
20
Bravo
AF:
0.00197

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Jun 15, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 19, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aland island eye disease Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Congenital stationary night blindness 2A Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

X-linked cone-rod dystrophy 3 Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.84
CADD
Benign
3.7
DANN
Benign
0.62
PhyloP100
1.2
Mutation Taster
=100/0
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs199764042; hg19: chrX-49071722; API