rs55814314

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_005502.4(ABCA1):​c.3204C>T​(p.Arg1068Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000828 in 1,614,204 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00045 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00087 ( 13 hom. )

Consequence

ABCA1
NM_005502.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 1.25

Publications

4 publications found
Variant links:
Genes affected
ABCA1 (HGNC:29): (ATP binding cassette subfamily A member 1) The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intracellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the ABC1 subfamily. Members of the ABC1 subfamily comprise the only major ABC subfamily found exclusively in multicellular eukaryotes. With cholesterol as its substrate, this protein functions as a cholesteral efflux pump in the cellular lipid removal pathway. Mutations in both alleles of this gene cause Tangier disease and familial high-density lipoprotein (HDL) deficiency. [provided by RefSeq, Sep 2019]
ABCA1 Gene-Disease associations (from GenCC):
  • hypoalphalipoproteinemia, primary, 1
    Inheritance: AD Classification: DEFINITIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • Tangier disease
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet
  • apolipoprotein A-I deficiency
    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 -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.39).
BP6
Variant 9-104819623-G-A is Benign according to our data. Variant chr9-104819623-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 364420.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.25 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000453 (69/152310) while in subpopulation SAS AF = 0.00497 (24/4830). AF 95% confidence interval is 0.00343. There are 1 homozygotes in GnomAd4. There are 41 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 13 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005502.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ABCA1
NM_005502.4
MANE Select
c.3204C>Tp.Arg1068Arg
synonymous
Exon 22 of 50NP_005493.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ABCA1
ENST00000374736.8
TSL:1 MANE Select
c.3204C>Tp.Arg1068Arg
synonymous
Exon 22 of 50ENSP00000363868.3
ABCA1
ENST00000678995.1
c.3204C>Tp.Arg1068Arg
synonymous
Exon 22 of 50ENSP00000504612.1

Frequencies

GnomAD3 genomes
AF:
0.000447
AC:
68
AN:
152192
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00476
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.000411
Gnomad OTH
AF:
0.000956
GnomAD2 exomes
AF:
0.00132
AC:
333
AN:
251478
AF XY:
0.00170
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.000703
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000867
AC:
1268
AN:
1461894
Hom.:
13
Cov.:
33
AF XY:
0.00110
AC XY:
797
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.000119
AC:
4
AN:
33480
American (AMR)
AF:
0.000492
AC:
22
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.00636
AC:
549
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00503
AC:
29
AN:
5768
European-Non Finnish (NFE)
AF:
0.000560
AC:
623
AN:
1112012
Other (OTH)
AF:
0.000662
AC:
40
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
93
187
280
374
467
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
28
56
84
112
140
<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:
0.000453
AC:
69
AN:
152310
Hom.:
1
Cov.:
32
AF XY:
0.000550
AC XY:
41
AN XY:
74490
show subpopulations
African (AFR)
AF:
0.0000722
AC:
3
AN:
41558
American (AMR)
AF:
0.000523
AC:
8
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00497
AC:
24
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.0136
AC:
4
AN:
294
European-Non Finnish (NFE)
AF:
0.000412
AC:
28
AN:
68036
Other (OTH)
AF:
0.000946
AC:
2
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
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
Alfa
AF:
0.000457
Hom.:
0
Bravo
AF:
0.000310
Asia WGS
AF:
0.00202
AC:
7
AN:
3478
EpiCase
AF:
0.000818
EpiControl
AF:
0.00107

ClinVar

ClinVar submissions as Germline

Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
6
not provided (6)
-
-
1
Cardiovascular phenotype (1)
-
-
1
Hypoalphalipoproteinemia, primary, 1 (1)
-
-
1
not specified (1)
-
-
1
Tangier disease (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.39
CADD
Benign
7.9
DANN
Benign
0.61
PhyloP100
1.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs55814314; hg19: chr9-107581904; COSMIC: COSV66065336; API