12-6817156-T-C
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Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_000616.5(CD4):āc.982T>Cā(p.Cys328Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000124 in 1,614,016 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ).
Frequency
Genomes: š 0.0000066 ( 0 hom., cov: 32)
Exomes š: 6.8e-7 ( 0 hom. )
Consequence
CD4
NM_000616.5 missense
NM_000616.5 missense
Scores
5
11
3
Clinical Significance
Conservation
PhyloP100: 3.65
Genes affected
CD4 (HGNC:1678): (CD4 molecule) This gene encodes the CD4 membrane glycoprotein of T lymphocytes. The CD4 antigen acts as a coreceptor with the T-cell receptor on the T lymphocyte to recognize antigens displayed by an antigen presenting cell in the context of class II MHC molecules. The CD4 antigen is also a primary receptor for entry of the human immunodeficiency virus through interactions with the HIV Env gp120 subunit. This gene is expressed not only in T lymphocytes, but also in B cells, macrophages, granulocytes, as well as in various regions of the brain. The protein functions to initiate or augment the early phase of T-cell activation, and may function as an important mediator of indirect neuronal damage in infectious and immune-mediated diseases of the central nervous system. Multiple alternatively spliced transcript variants encoding different isoforms have been identified in this gene. [provided by RefSeq, May 2020]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.968
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
CD4 | NM_000616.5 | c.982T>C | p.Cys328Arg | missense_variant | 7/10 | ENST00000011653.9 | NP_000607.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
CD4 | ENST00000011653.9 | c.982T>C | p.Cys328Arg | missense_variant | 7/10 | 1 | NM_000616.5 | ENSP00000011653 | P1 | |
CD4 | ENST00000437800.6 | n.1220T>C | non_coding_transcript_exon_variant | 5/8 | 2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152210Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251396Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135862
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GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461806Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0AN XY: 727188
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152210Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74364
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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 | May 31, 2022 | The c.982T>C (p.C328R) alteration is located in exon 7 (coding exon 6) of the CD4 gene. This alteration results from a T to C substitution at nucleotide position 982, causing the cysteine (C) at amino acid position 328 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Uncertain
D
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Uncertain
T
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D
M_CAP
Benign
D
MetaRNN
Pathogenic
D
MetaSVM
Benign
T
MutationAssessor
Uncertain
M
MutationTaster
Benign
D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D
REVEL
Uncertain
Sift
Pathogenic
D
Sift4G
Pathogenic
D
Polyphen
D
Vest4
MutPred
Gain of catalytic residue at W331 (P = 4e-04);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at