NM_006274.3:c.154A>G

Variant names:

• chr9-34690238-T-C
• NM_006274.3:c.154A>G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_006274.3(CCL19):​c.154A>G​(p.Lys52Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: CCL19 NM_006274.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.421

Genes affected

CCL19 (HGNC:10617): (C-C motif chemokine ligand 19) This antimicrobial gene is one of several CC cytokine genes clustered on the p-arm of chromosome 9. 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 may play a role in normal lymphocyte recirculation and homing. It also plays an important role in trafficking of T cells in thymus, and in T cell and B cell migration to secondary lymphoid organs. It specifically binds to chemokine receptor CCR7. [provided by RefSeq, Sep 2014]

PHF24 (HGNC:29180): (PHD finger protein 24) Predicted to enable metal ion binding activity. Predicted to act upstream of or within several processes, including detection of mechanical stimulus involved in sensory perception of pain; gamma-aminobutyric acid signaling pathway; and regulation of GABAergic synaptic transmission. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.046390146).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCL19	NM_006274.3	c.154A>G	p.Lys52Glu	missense_variant	Exon 2 of 4	ENST00000311925.7	NP_006265.1
PHF24	XM_047423102.1	c.48+9021T>C		intron_variant	Intron 3 of 11		XP_047279058.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCL19	ENST00000311925.7	c.154A>G	p.Lys52Glu	missense_variant	Exon 2 of 4	1	NM_006274.3	ENSP00000308815.2
CCL19	ENST00000378800.3	c.154A>G	p.Lys52Glu	missense_variant	Exon 2 of 3	2		ENSP00000368077.3
CCL19	ENST00000485502.1	n.1A>G		non_coding_transcript_exon_variant	Exon 1 of 2	2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Aug 20, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.154A>G (p.K52E) alteration is located in exon 2 (coding exon 2) of the CCL19 gene. This alteration results from a A to G substitution at nucleotide position 154, causing the lysine (K) at amino acid position 52 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.68
CADD	Benign	12
DANN	Benign	0.52
DEOGEN2	Benign	0.065	T;T
Eigen	Benign	-0.84
Eigen_PC	Benign	-0.84
FATHMM_MKL	Benign	0.013	N
LIST_S2	Benign	0.54	T;T
M_CAP	Benign	0.0020	T
MetaRNN	Benign	0.046	T;T
MetaSVM	Benign	-0.93	T
PrimateAI	Benign	0.31	T
PROVEAN	Benign	0.060	N;N
REVEL	Benign	0.031
Sift	Benign	1.0	T;T
Sift4G	Benign	1.0	T;T
Polyphen		0.0	B;.
Vest4		0.16
MutPred		0.48		Loss of ubiquitination at K52 (P = 0.0381);Loss of ubiquitination at K52 (P = 0.0381);
MVP		0.32
MPC		0.63
ClinPred		0.021	T
GERP RS		-0.25
Varity_R		0.063
gMVP		0.37

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: chr9-34690235;