Genetic Variant IL12RB1:p.Pro34Pro (chr19-18083454-C-T) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_005535.3(IL12RB1):c.102G>A(p.Pro34Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00929 in 1,613,896 control chromosomes in the GnomAD database, including 89 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0063 ( 7 hom., cov: 32)

Exomes 𝑓: 0.0096 ( 82 hom. )

Consequence

IL12RB1
NM_005535.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -1.97

Publications

2 publications found

Variant links:

Genes affected

IL12RB1 (HGNC:5971): (interleukin 12 receptor subunit beta 1) The protein encoded by this gene is a type I transmembrane protein that belongs to the hemopoietin receptor superfamily. This protein binds to interleukine 12 (IL12) with a low affinity, and is thought to be a part of IL12 receptor complex. This protein forms a disulfide-linked oligomer, which is required for its IL12 binding activity. The coexpression of this and IL12RB2 proteins was shown to lead to the formation of high-affinity IL12 binding sites and reconstitution of IL12 dependent signaling. Mutations in this gene impair the development of interleukin-17-producing T lymphocytes and result in increased susceptibility to mycobacterial and Salmonella infections. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2014]

IL12RB1 Gene-Disease associations (from GenCC):

Mendelian susceptibility to mycobacterial diseases due to complete IL12RB1 deficiency
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

IL12RB1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.76).

BP6

Variant 19-18083454-C-T is Benign according to our data. Variant chr19-18083454-C-T is described in ClinVar as Benign. ClinVar VariationId is 474974.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00627 (954/152240) while in subpopulation NFE AF = 0.00976 (664/68008). AF 95% confidence interval is 0.00915. There are 7 homozygotes in GnomAd4. There are 461 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 7 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005535.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
IL12RB1	NM_005535.3	MANE Select	c.102G>A	p.Pro34Pro	synonymous	Exon 2 of 17	NP_005526.1
IL12RB1	NM_001290024.2		c.222G>A	p.Pro74Pro	synonymous	Exon 3 of 18	NP_001276953.1
IL12RB1	NM_001440424.1		c.102G>A	p.Pro34Pro	synonymous	Exon 2 of 17	NP_001427353.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
IL12RB1	ENST00000593993.7	TSL:1 MANE Select	c.102G>A	p.Pro34Pro	synonymous	Exon 2 of 17	ENSP00000472165.2
IL12RB1	ENST00000600835.6	TSL:1	c.102G>A	p.Pro34Pro	synonymous	Exon 3 of 18	ENSP00000470788.1
IL12RB1	ENST00000322153.11	TSL:1	c.102G>A	p.Pro34Pro	synonymous	Exon 2 of 10	ENSP00000314425.5

Frequencies

GnomAD3 genomes

AF:

0.00628

AC:

955

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00222

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00426

Gnomad ASJ

AF:

0.00403

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00290

Gnomad FIN

AF:

0.00932

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00976

Gnomad OTH

AF:

0.00287

GnomAD2 exomes

AF:

0.00704

AC:

1684

AN:

239204

AF XY:

0.00689

show subpopulations

Gnomad AFR exome

AF:

0.00181

Gnomad AMR exome

AF:

0.00343

Gnomad ASJ exome

AF:

0.00512

Gnomad EAS exome

AF:

0.000173

Gnomad FIN exome

AF:

0.0136

Gnomad NFE exome

AF:

0.0101

Gnomad OTH exome

AF:

0.00706

GnomAD4 exome

AF:

0.00960

AC:

14038

AN:

1461656

Hom.:

Cov.:

AF XY:

0.00939

AC XY:

6831

AN XY:

727126

show subpopulations

African (AFR)

AF:

0.00128

AC:

AN:

33478

American (AMR)

AF:

0.00411

AC:

184

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00501

AC:

131

AN:

26136

East Asian (EAS)

AF:

0.000101

AC:

AN:

39700

South Asian (SAS)

AF:

0.00255

AC:

220

AN:

86256

European-Finnish (FIN)

AF:

0.0114

AC:

610

AN:

53352

Middle Eastern (MID)

AF:

0.00157

AC:

AN:

5718

European-Non Finnish (NFE)

AF:

0.0111

AC:

12366

AN:

1111906

Other (OTH)

AF:

0.00780

AC:

471

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.459

Heterozygous variant carriers

727

1454

2182

2909

3636

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

486

972

1458

1944

2430

<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:

0.00627

AC:

954

AN:

152240

Hom.:

Cov.:

AF XY:

0.00619

AC XY:

461

AN XY:

74462

show subpopulations

African (AFR)

AF:

0.00222

AC:

AN:

41522

American (AMR)

AF:

0.00425

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00403

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5182

South Asian (SAS)

AF:

0.00269

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00932

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00976

AC:

664

AN:

68008

Other (OTH)

AF:

0.00284

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

100

150

200

250

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:

0.00716

Hom.:

Bravo

AF:

0.00588

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Mendelian susceptibility to mycobacterial diseases due to complete IL12RB1 deficiency

Benign:2

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease.

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not provided

Benign:1

Aug 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

IL12RB1: BP4, BP7, BS1, BS2

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

1.6

(source)

DANN

Benign

0.62

PhyloP100

-2.0

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.12

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

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over