Genetic Variant CXCL12:p.Ala96Ala (chr10-44377884-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6BP7

The NM_001178134.2(CXCL12):c.288C>T(p.Ala96Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000356 in 1,573,438 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

CXCL12
NM_001178134.2 synonymous

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -2.01

Publications

0 publications found

Variant links:

Genes affected

CXCL12 (HGNC:10672): (C-X-C motif chemokine ligand 12) This antimicrobial gene encodes a stromal cell-derived alpha chemokine member of the intercrine family. The encoded protein functions as the ligand for the G-protein coupled receptor, chemokine (C-X-C motif) receptor 4, and plays a role in many diverse cellular functions, including embryogenesis, immune surveillance, inflammation response, tissue homeostasis, and tumor growth and metastasis. Mutations in this gene are associated with resistance to human immunodeficiency virus type 1 infections. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2014]

CXCL12 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 10-44377884-G-A is Benign according to our data. Variant chr10-44377884-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 3058031.Status of the report is no_assertion_criteria_provided, 0 stars.

BP7

Synonymous conserved (PhyloP=-2.01 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001178134.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CXCL12	NM_199168.4	MANE Select	c.*749C>T		3_prime_UTR	Exon 3 of 3	NP_954637.1	P48061-2
CXCL12	NM_001178134.2		c.288C>T	p.Ala96Ala	synonymous	Exon 4 of 4	NP_001171605.1	P48061-4
CXCL12	NM_001033886.2		c.266+753C>T		intron	N/A	NP_001029058.1	P48061-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CXCL12	ENST00000395794.2	TSL:1	c.288C>T	p.Ala96Ala	synonymous	Exon 4 of 4	ENSP00000379140.2	P48061-4
CXCL12	ENST00000343575.11	TSL:1 MANE Select	c.*749C>T		3_prime_UTR	Exon 3 of 3	ENSP00000339913.6	P48061-2
CXCL12	ENST00000374426.6	TSL:1	c.266+753C>T		intron	N/A	ENSP00000363548.2	P48061-3

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.000956

GnomAD2 exomes

AF:

0.0000319

AC:

AN:

187816

AF XY:

0.0000193

show subpopulations

Gnomad AFR exome

AF:

0.0000994

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000235

Gnomad OTH exome

AF:

0.000393

GnomAD4 exome

AF:

0.0000338

AC:

AN:

1421238

Hom.:

Cov.:

AF XY:

0.0000326

AC XY:

AN XY:

705070

show subpopulations

African (AFR)

AF:

0.0000914

AC:

AN:

32818

American (AMR)

AF:

0.00

AC:

AN:

40666

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25646

East Asian (EAS)

AF:

0.0000261

AC:

AN:

38374

South Asian (SAS)

AF:

0.0000242

AC:

AN:

82744

European-Finnish (FIN)

AF:

0.00

AC:

AN:

36564

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5000

European-Non Finnish (NFE)

AF:

0.0000327

AC:

AN:

1100042

Other (OTH)

AF:

0.000101

AC:

AN:

59384

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000526

AC:

AN:

152200

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74362

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41454

American (AMR)

AF:

0.00

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

68034

Other (OTH)

AF:

0.000956

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.519

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000712

Hom.:

Bravo

AF:

0.0000567

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Likely benign

Revision:no assertion criteria provided

View on ClinVar

Pathogenic

VUS

Benign

Condition

CXCL12-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

0.18

(source)

DANN

Benign

0.37

PhyloP100

-2.0

Mutation Taster

=100/0

polymorphism

(source)

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

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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