22-23580170-C-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_020070.4(IGLL1):c.21G>C(p.Gln7His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000106 in 1,543,498 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

IGLL1
NM_020070.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.377

Publications

0 publications found

Variant links:

Genes affected

IGLL1 (HGNC:5870): (immunoglobulin lambda like polypeptide 1) The preB cell receptor is found on the surface of proB and preB cells, where it is involved in transduction of signals for cellular proliferation, differentiation from the proB cell to the preB cell stage, allelic exclusion at the Ig heavy chain gene locus, and promotion of Ig light chain gene rearrangements. The preB cell receptor is composed of a membrane-bound Ig mu heavy chain in association with a heterodimeric surrogate light chain. This gene encodes one of the surrogate light chain subunits and is a member of the immunoglobulin gene superfamily. This gene does not undergo rearrangement. Mutations in this gene can result in B cell deficiency and agammaglobulinemia, an autosomal recessive disease in which few or no gamma globulins or antibodies are made. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

IGLL1 Gene-Disease associations (from GenCC):

agammaglobulinemia 2, autosomal recessive
Inheritance: Unknown, AR Classification: MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen
autosomal agammaglobulinemia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

IGLL1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.119479865).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020070.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
IGLL1	NM_020070.4	MANE Select	c.21G>C	p.Gln7His	missense	Exon 1 of 3	NP_064455.1
IGLL1	NM_001369906.1		c.21G>C	p.Gln7His	missense	Exon 1 of 3	NP_001356835.1
IGLL1	NM_152855.3		c.21G>C	p.Gln7His	missense	Exon 1 of 2	NP_690594.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
IGLL1	ENST00000330377.3	TSL:1 MANE Select	c.21G>C	p.Gln7His	missense	Exon 1 of 3	ENSP00000329312.2
IGLL1	ENST00000249053.3	TSL:1	c.21G>C	p.Gln7His	missense	Exon 1 of 2	ENSP00000249053.3
IGLL1	ENST00000438703.1	TSL:2	c.21G>C	p.Gln7His	missense	Exon 1 of 3	ENSP00000403391.1

Frequencies

GnomAD3 genomes

AF:

0.0000854

AC:

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000279

AC:

AN:

143236

AF XY:

0.0000258

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000716

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000109

AC:

151

AN:

1391300

Hom.:

Cov.:

AF XY:

0.000112

AC XY:

AN XY:

686890

show subpopulations

African (AFR)

AF:

0.0000939

AC:

AN:

31946

American (AMR)

AF:

0.00

AC:

AN:

35822

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25178

East Asian (EAS)

AF:

0.00

AC:

AN:

36306

South Asian (SAS)

AF:

0.00

AC:

AN:

79388

European-Finnish (FIN)

AF:

0.00

AC:

AN:

39862

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4712

European-Non Finnish (NFE)

AF:

0.000131

AC:

141

AN:

1080148

Other (OTH)

AF:

0.000121

AC:

AN:

57938

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

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:

0.0000854

AC:

AN:

152198

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74350

show subpopulations

African (AFR)

AF:

0.000193

AC:

AN:

41446

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4838

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

68004

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

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:

0.0000305

Hom.:

Bravo

AF:

0.0000567

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Agammaglobulinemia 2, autosomal recessive (2)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.45

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.27

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.74

FATHMM_MKL

Benign

0.024

LIST_S2

Benign

0.51

M_CAP

Benign

0.0032

MetaRNN

Benign

0.12

MetaSVM

Benign

-0.86

MutationAssessor

Benign

1.1

PhyloP100

0.38

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-4.0

REVEL

Benign

0.15

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.029

Polyphen

0.97

Vest4

0.18

MutPred

0.085

Gain of methylation at R2 (P = 0.0692)

MVP

0.20

MPC

0.29

ClinPred

0.26

GERP RS

0.57

PromoterAI

0.015

Neutral

(source)

Varity_R

0.10

gMVP

0.46

Mutation Taster

=97/3

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over