12-6816128-T-G

Variant names:

• chr12-6816128-T-G
• rs11064419
• NM_000616.5:c.680T>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001195015.3(CD4):​c.-140T>G variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CD4 NM_001195015.3 5_prime_UTR_premature_start_codon_gain
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.49
• Publications: 10 publications found

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]

CD4 Gene-Disease associations (from GenCC):

• immunodeficiency 79

  Inheritance: Unknown, AR Classification: MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001195015.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CD4	NM_000616.5	MANE Select	c.680T>G	p.Phe227Cys	missense	Exon 6 of 10	NP_000607.1	P01730
	CD4	NM_001195015.3		c.-140T>G		5_prime_UTR_premature_start_codon_gain	Exon 4 of 8	NP_001181944.1	B4DT49
	CD4	NM_001195016.3		c.-140T>G		5_prime_UTR_premature_start_codon_gain	Exon 4 of 8	NP_001181945.1	B4DT49

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CD4	ENST00000011653.9	TSL:1 MANE Select	c.680T>G	p.Phe227Cys	missense	Exon 6 of 10	ENSP00000011653.4	P01730
	CD4	ENST00000541982.5	TSL:1	c.*393T>G		3_prime_UTR	Exon 5 of 5	ENSP00000445167.1	F5H480
	CD4	ENST00000538827.5	TSL:1	n.756T>G		non_coding_transcript_exon	Exon 4 of 4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251478 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.0000992

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461890 Hom.: 0 Cov.: 34 AF XY: 0.00000275 AC XY: 2 AN XY: 727248

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112010

Other (OTH) AF: 0.0000331 AC: 2 AN: 60394

GnomAD4 genome Cov.: 32

Alfa AF: 0.00000304 Hom.: 87

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.46
BayesDel_addAF	Benign	-0.097	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	19
DANN	Uncertain	0.98
DEOGEN2	Benign	0.31	T
Eigen	Benign	0.062
Eigen_PC	Benign	-0.14
FATHMM_MKL	Benign	0.21	N
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.033	D
MetaRNN	Uncertain	0.68	D
MetaSVM	Benign	-0.85	T
MutationAssessor	Benign	1.9	L
PhyloP100		1.5
PrimateAI	Benign	0.43	T
PROVEAN	Pathogenic	-5.4	D
REVEL	Benign	0.13
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.40
MutPred		0.70		Gain of catalytic residue at V229 (P = 0)
MVP		0.84
MPC		0.95
ClinPred		0.96	D
GERP RS		4.0
Varity_R		0.73
gMVP		0.68
Mutation Taster		=85/15	polymorphism

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

Other links and lift over

dbSNP: rs11064419; hg19: chr12-6925294;