NM_002990.5:c.131G>T

Variant names:

• chr16-57360494-G-T
• NM_002990.5:c.131G>T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_002990.5(CCL22):​c.131G>T​(p.Arg44Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CCL22 NM_002990.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.92

Genes affected

CCL22 (HGNC:10621): (C-C motif chemokine ligand 22) This antimicrobial gene is one of several Cys-Cys (CC) cytokine genes clustered on the q arm of chromosome 16. Cytokines are a family of secreted proteins involved in immunoregulatory and inflammatory processes. The CC cytokines are proteins characterized by two adjacent cysteines. The cytokine encoded by this gene displays chemotactic activity for monocytes, dendritic cells, natural killer cells and for chronically activated T lymphocytes. It also displays a mild activity for primary activated T lymphocytes and has no chemoattractant activity for neutrophils, eosinophils and resting T lymphocytes. The product of this gene binds to chemokine receptor CCR4. This chemokine may play a role in the trafficking of activated T lymphocytes to inflammatory sites and other aspects of activated T lymphocyte physiology. [provided by RefSeq, Sep 2014]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.34857124).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCL22	NM_002990.5	c.131G>T	p.Arg44Leu	missense_variant	Exon 2 of 3	ENST00000219235.5	NP_002981.2
CCL22	XM_047434449.1	c.170G>T	p.Arg57Leu	missense_variant	Exon 3 of 4		XP_047290405.1
CCL22	XM_047434450.1	c.131G>T	p.Arg44Leu	missense_variant	Exon 3 of 4		XP_047290406.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCL22	ENST00000219235.5	c.131G>T	p.Arg44Leu	missense_variant	Exon 2 of 3	1	NM_002990.5	ENSP00000219235.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461842 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727220

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.33
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.55
CADD	Benign	19
DANN	Uncertain	0.98
DEOGEN2	Benign	0.014	T
Eigen	Benign	-0.35
Eigen_PC	Benign	-0.53
FATHMM_MKL	Benign	0.069	N
LIST_S2	Benign	0.75	T
M_CAP	Benign	0.0064	T
MetaRNN	Benign	0.35	T
MetaSVM	Benign	-1.1	T
PrimateAI	Benign	0.34	T
PROVEAN	Uncertain	-2.9	D
REVEL	Benign	0.071
Sift	Benign	0.13	T
Sift4G	Benign	0.098	T
Polyphen		0.96	D
Vest4		0.44
MutPred		0.51		Loss of MoRF binding (P = 0.0102);
MVP		0.25
MPC		0.76
ClinPred		0.81	D
GERP RS		3.3
Varity_R		0.087
gMVP		0.78

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-57394406;