Genetic Variant CCL4:p.Thr39Thr (chr17-36104568-C-T) – ACMG Classification: Benign (-13 pts)

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP7BS1BS2

The NM_002984.4(CCL4):c.117C>T(p.Thr39Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00153 in 1,612,602 control chromosomes in the GnomAD database, including 32 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0079 ( 14 hom., cov: 31)

Exomes 𝑓: 0.00087 ( 18 hom. )

Consequence

CCL4
NM_002984.4 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.769

Publications

7 publications found

Variant links:

Genes affected

CCL4 (HGNC:10630): (C-C motif chemokine ligand 4) The protein encoded by this gene is a mitogen-inducible monokine and is one of the major HIV-suppressive factors produced by CD8+ T-cells. The encoded protein is secreted and has chemokinetic and inflammatory functions. [provided by RefSeq, Dec 2012]

CCL4 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.85).

BP7

Synonymous conserved (PhyloP=-0.769 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00789 (1201/152130) while in subpopulation AFR AF = 0.0274 (1138/41496). AF 95% confidence interval is 0.0261. There are 14 homozygotes in GnomAd4. There are 568 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 14 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002984.4. 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
	CCL4	NM_002984.4	MANE Select	c.117C>T	p.Thr39Thr	synonymous	Exon 2 of 3	NP_002975.1	P13236

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CCL4	ENST00000615863.2	TSL:1 MANE Select	c.117C>T	p.Thr39Thr	synonymous	Exon 2 of 3	ENSP00000482259.1	P13236
CCL4	ENST00000621626.1	TSL:1	c.76+587C>T		intron	N/A	ENSP00000480569.1	Q7M4M2
CCL4	ENST00000613947.1	TSL:6	n.728C>T		non_coding_transcript_exon	Exon 1 of 1

Frequencies

GnomAD3 genomes

AF:

0.00785

AC:

1194

AN:

152012

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0273

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00308

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.00336

GnomAD4 exome

AF:

0.000871

AC:

1272

AN:

1460472

Hom.:

Cov.:

AF XY:

0.000772

AC XY:

561

AN XY:

726546

show subpopulations

African (AFR)

AF:

0.0289

AC:

965

AN:

33426

American (AMR)

AF:

0.00233

AC:

104

AN:

44710

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.0000756

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000464

AC:

AN:

86188

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00372

AC:

AN:

4834

European-Non Finnish (NFE)

AF:

0.0000414

AC:

AN:

1111800

Other (OTH)

AF:

0.00219

AC:

132

AN:

60266

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.456

Heterozygous variant carriers

148

222

296

370

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

128

160

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00789

AC:

1201

AN:

152130

Hom.:

Cov.:

AF XY:

0.00764

AC XY:

568

AN XY:

74362

show subpopulations

African (AFR)

AF:

0.0274

AC:

1138

AN:

41496

American (AMR)

AF:

0.00308

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5146

South Asian (SAS)

AF:

0.000208

AC:

AN:

4812

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000103

AC:

AN:

68012

Other (OTH)

AF:

0.00332

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

109

164

218

273

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0103

Hom.:

Bravo

AF:

0.00925

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.85

CADD

Benign

3.7

(source)

PhyloP100

-0.77

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over