rs74644143

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_002187.3(IL12B):c.749G>A(p.Arg250Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000335 in 1,613,958 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R250W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0019 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

IL12B
NM_002187.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 0.0940

Publications

5 publications found

Variant links:

Genes affected

IL12B (HGNC:5970): (interleukin 12B) This gene encodes a subunit of interleukin 12, a cytokine that acts on T and natural killer cells, and has a broad array of biological activities. Interleukin 12 is a disulfide-linked heterodimer composed of the 40 kD cytokine receptor like subunit encoded by this gene, and a 35 kD subunit encoded by IL12A. This cytokine is expressed by activated macrophages that serve as an essential inducer of Th1 cells development. This cytokine has been found to be important for sustaining a sufficient number of memory/effector Th1 cells to mediate long-term protection to an intracellular pathogen. Overexpression of this gene was observed in the central nervous system of patients with multiple sclerosis (MS), suggesting a role of this cytokine in the pathogenesis of the disease. The promoter polymorphism of this gene has been reported to be associated with the severity of atopic and non-atopic asthma in children. [provided by RefSeq, Jul 2008]

IL12B Gene-Disease associations (from GenCC):

Mendelian susceptibility to mycobacterial diseases due to complete IL12B deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)

IL12B links:

ENSG00000249738 (HGNC:58156):

ENSG00000249738 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0034862459).

BP6

Variant 5-159318842-C-T is Benign according to our data. Variant chr5-159318842-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 541815.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00185 (282/152214) while in subpopulation AFR AF = 0.0065 (270/41538). AF 95% confidence interval is 0.00586. There are 0 homozygotes in GnomAd4. There are 108 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IL12B	NM_002187.3 link	c.749G>A	p.Arg250Gln	missense_variant	Exon 6 of 8	ENST00000231228.3	NP_002178.2	P29460

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IL12B	ENST00000231228.3 link	c.749G>A	p.Arg250Gln	missense_variant	Exon 6 of 8	1	NM_002187.3	ENSP00000231228.2		P29460

Frequencies

GnomAD3 genomes

AF:

0.00186

AC:

283

AN:

152096

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00654

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

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:

0.0000588

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.000461

AC:

116

AN:

251406

AF XY:

0.000324

show subpopulations

Gnomad AFR exome

AF:

0.00664

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000177

AC:

258

AN:

1461744

Hom.:

Cov.:

AF XY:

0.000140

AC XY:

102

AN XY:

727190

show subpopulations

African (AFR)

AF:

0.00660

AC:

221

AN:

33476

American (AMR)

AF:

0.000134

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.0000144

AC:

AN:

1111904

Other (OTH)

AF:

0.000199

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

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:

0.00185

AC:

282

AN:

152214

Hom.:

Cov.:

AF XY:

0.00145

AC XY:

108

AN XY:

74418

show subpopulations

African (AFR)

AF:

0.00650

AC:

270

AN:

41538

American (AMR)

AF:

0.000327

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10586

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68012

Other (OTH)

AF:

0.00142

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

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:

0.000668

Hom.:

Bravo

AF:

0.00198

ESP6500AA

AF:

0.00522

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000585

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Mendelian susceptibility to mycobacterial diseases due to complete IL12B deficiency

Uncertain:1Benign:1

Mar 30, 2021

Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

IL12B NM_002187.2 exon 6 p.Arg250Gln (c.749G>A): This variant has not been reported in the literature and is present in 0.6% (167/24966) of African alleles in the Genome Aggregation Database (http://gnomad.broadinstitute.org/variant/5-158745850-C-T). This variant is present in ClinVar (Variation ID:541815). This variant amino acid Glutamine (Gln) is present in several species including multiple mammals, and it is not well conserved among evolutionarily distant species; this suggests that this variant may not impact the protein. Additional computational prediction tools do not suggest an impact. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

Dec 30, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Uncertain:1

Aug 01, 2019

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.073

BayesDel_addAF

Benign

-0.71

BayesDel_noAF

Benign

-0.79

CADD

Benign

(source)

DANN

Benign

0.90

DEOGEN2

Benign

0.097

Eigen

Benign

-0.93

Eigen_PC

Benign

-0.92

FATHMM_MKL

Benign

0.013

LIST_S2

Benign

0.73

M_CAP

Benign

0.0054

MetaRNN

Benign

0.0035

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

PhyloP100

0.094

PrimateAI

Benign

0.20

PROVEAN

Benign

0.080

REVEL

Benign

0.073

Sift

Benign

0.23

Sift4G

Benign

0.30

Polyphen

0.0080

Vest4

0.11

MVP

0.51

MPC

0.34

ClinPred

0.012

GERP RS

0.39

Varity_R

0.33

gMVP

0.26

Mutation Taster

=88/12

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over