3-39265456-A-G

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001337.4(CX3CR1):ā€‹c.1054T>Cā€‹(p.Leu352=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00202 in 1,609,916 control chromosomes in the GnomAD database, including 62 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.011 ( 33 hom., cov: 32)
Exomes š‘“: 0.0011 ( 29 hom. )

Consequence

CX3CR1
NM_001337.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 2.32
Variant links:
Genes affected
CX3CR1 (HGNC:2558): (C-X3-C motif chemokine receptor 1) Fractalkine is a transmembrane protein and chemokine involved in the adhesion and migration of leukocytes. The protein encoded by this gene is a receptor for fractalkine. The encoded protein also is a coreceptor for HIV-1, and some variations in this gene lead to increased susceptibility to HIV-1 infection and rapid progression to AIDS. Four transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jan 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 3-39265456-A-G is Benign according to our data. Variant chr3-39265456-A-G is described in ClinVar as [Benign]. Clinvar id is 783371.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=2.32 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0105 (1605/152310) while in subpopulation AFR AF= 0.0365 (1516/41552). AF 95% confidence interval is 0.035. There are 33 homozygotes in gnomad4. There are 753 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 33 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CX3CR1NM_001337.4 linkuse as main transcriptc.1054T>C p.Leu352= synonymous_variant 2/2 ENST00000399220.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CX3CR1ENST00000399220.3 linkuse as main transcriptc.1054T>C p.Leu352= synonymous_variant 2/21 NM_001337.4 P1P49238-1
CX3CR1ENST00000358309.3 linkuse as main transcriptc.1150T>C p.Leu384= synonymous_variant 2/22 P49238-4
CX3CR1ENST00000541347.5 linkuse as main transcriptc.1054T>C p.Leu352= synonymous_variant 2/24 P1P49238-1
CX3CR1ENST00000542107.5 linkuse as main transcriptc.1054T>C p.Leu352= synonymous_variant 2/24 P1P49238-1

Frequencies

GnomAD3 genomes
AF:
0.0106
AC:
1608
AN:
152190
Hom.:
33
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0367
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00392
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000206
Gnomad OTH
AF:
0.00622
GnomAD3 exomes
AF:
0.00259
AC:
641
AN:
247290
Hom.:
8
AF XY:
0.00199
AC XY:
267
AN XY:
134132
show subpopulations
Gnomad AFR exome
AF:
0.0349
Gnomad AMR exome
AF:
0.00245
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000715
Gnomad OTH exome
AF:
0.00150
GnomAD4 exome
AF:
0.00113
AC:
1652
AN:
1457606
Hom.:
29
Cov.:
31
AF XY:
0.000943
AC XY:
683
AN XY:
724526
show subpopulations
Gnomad4 AFR exome
AF:
0.0384
Gnomad4 AMR exome
AF:
0.00312
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000233
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000730
Gnomad4 OTH exome
AF:
0.00228
GnomAD4 genome
AF:
0.0105
AC:
1605
AN:
152310
Hom.:
33
Cov.:
32
AF XY:
0.0101
AC XY:
753
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.0365
Gnomad4 AMR
AF:
0.00392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000206
Gnomad4 OTH
AF:
0.00616
Alfa
AF:
0.00127
Hom.:
6
Bravo
AF:
0.0122
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.000273
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 16, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
3.0
DANN
Benign
0.31

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs56181422; hg19: chr3-39306947; API