1-158257017-G-A
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_001763.3(CD1A):c.836G>A(p.Arg279Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,918 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )
Consequence
CD1A
NM_001763.3 missense
NM_001763.3 missense
Scores
4
15
Clinical Significance
Conservation
PhyloP100: 0.976
Genes affected
CD1A (HGNC:1634): (CD1a molecule) This gene encodes a member of the CD1 family of transmembrane glycoproteins, which are structurally related to the major histocompatibility complex (MHC) proteins and form heterodimers with beta-2-microglobulin. The CD1 proteins mediate the presentation of primarily lipid and glycolipid antigens of self or microbial origin to T cells. The human genome contains five CD1 family genes organized in a cluster on chromosome 1. The CD1 family members are thought to differ in their cellular localization and specificity for particular lipid ligands. The protein encoded by this gene localizes to the plasma membrane and to recycling vesicles of the early endocytic system. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2016]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CD1A | NM_001763.3 | c.836G>A | p.Arg279Gln | missense_variant | 4/6 | ENST00000289429.6 | |
CD1A | NM_001320652.2 | c.803G>A | p.Arg268Gln | missense_variant | 4/6 | ||
CD1A | XM_024450738.2 | c.368G>A | p.Arg123Gln | missense_variant | 5/7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CD1A | ENST00000289429.6 | c.836G>A | p.Arg279Gln | missense_variant | 4/6 | 1 | NM_001763.3 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152110Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000120 AC: 3AN: 250876Hom.: 0 AF XY: 0.00000738 AC XY: 1AN XY: 135560
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GnomAD4 exome AF: 0.00000547 AC: 8AN: 1461808Hom.: 0 Cov.: 33 AF XY: 0.00000275 AC XY: 2AN XY: 727192
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GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152110Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74304
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Sep 16, 2021 | The c.836G>A (p.R279Q) alteration is located in exon 4 (coding exon 4) of the CD1A gene. This alteration results from a G to A substitution at nucleotide position 836, causing the arginine (R) at amino acid position 279 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
Cadd
Benign
Dann
Uncertain
DEOGEN2
Benign
T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
N
LIST_S2
Uncertain
D
M_CAP
Benign
T
MetaRNN
Benign
T
MetaSVM
Benign
T
MutationAssessor
Benign
L
MutationTaster
Benign
N
PrimateAI
Benign
T
PROVEAN
Uncertain
D
REVEL
Benign
Sift
Benign
T
Sift4G
Uncertain
T
Polyphen
D
Vest4
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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Calibrated prediction
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SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_DG_spliceai
Position offset: 1
Find out detailed SpliceAI scores and Pangolin per-transcript scores at