9-34709542-G-A

Position:

chr9-34709542-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002989.4(CCL21):c.329C>T(p.Ser110Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000192 in 1,614,004 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

CCL21
NM_002989.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.962

Variant links:

Genes affected

CCL21 (HGNC:10620): (C-C motif chemokine ligand 21) 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. Similar to other chemokines the protein encoded by this gene inhibits hemopoiesis and stimulates chemotaxis. This protein is chemotactic in vitro for thymocytes and activated T cells, but not for B cells, macrophages, or neutrophils. The cytokine encoded by this gene may also play a role in mediating homing of lymphocytes to secondary lymphoid organs. It is a high affinity functional ligand for chemokine receptor 7 that is expressed on T and B lymphocytes and a known receptor for another member of the cytokine family (small inducible cytokine A19). [provided by RefSeq, Sep 2014]

CCL21 links:

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]

PHF24 links:

ENSG00000288583 (HGNC:):

ENSG00000288583 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.118404).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CCL21	NM_002989.4 linkuse as main transcript	c.329C>T	p.Ser110Phe	missense_variant	3/4	ENST00000259607.7	NP_002980.1	O00585
PHF24	XM_047423102.1 linkuse as main transcript	c.133+6504G>A		intron_variant			XP_047279058.1
PHF24	XM_047423103.1 linkuse as main transcript	c.70+6504G>A		intron_variant			XP_047279059.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
CCL21	ENST00000259607.7 linkuse as main transcript	c.329C>T	p.Ser110Phe	missense_variant	3/4	1	NM_002989.4	ENSP00000259607.2	O00585
CCL21	ENST00000378792.1 linkuse as main transcript	c.329C>T	p.Ser110Phe	missense_variant	3/3	2		ENSP00000368069.1	Q5VZ73
ENSG00000288583	ENST00000664167.1 linkuse as main transcript	n.86+6504G>A		intron_variant

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152134

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000265

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251258

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135792

show subpopulations

Gnomad AFR exome

AF:

0.000369

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS 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:

0.0000130

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.000418

Gnomad4 AMR exome

AF:

0.0000447

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:

0.0000331

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152134

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.000265

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000197

Hom.:

Bravo

AF:

0.000155

ExAC

AF:

0.0000165

AC:

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

Aug 26, 2024

The c.329C>T (p.S110F) alteration is located in exon 3 (coding exon 3) of the CCL21 gene. This alteration results from a C to T substitution at nucleotide position 329, causing the serine (S) at amino acid position 110 to be replaced by a phenylalanine (F). 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

0.16

BayesDel_addAF

Benign

-0.52

BayesDel_noAF

Benign

-0.67

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.20

T;T

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.48

FATHMM_MKL

Benign

0.064

LIST_S2

Benign

0.69

T;T

M_CAP

Benign

0.0054

MetaRNN

Benign

0.12

T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.90

L;.

PrimateAI

Benign

0.27

PROVEAN

Benign

-1.4

N;N

REVEL

Benign

0.080

Sift

Benign

0.036

D;D

Sift4G

Uncertain

0.025

D;D

Polyphen

0.65

P;.

Vest4

0.31

MVP

0.35

MPC

0.18

ClinPred

0.056

GERP RS

3.4

Varity_R

0.045

gMVP

0.21

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over