22-23575005-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020070.4(IGLL1):ā€‹c.284C>Gā€‹(p.Thr95Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T95K) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

IGLL1
NM_020070.4 missense

Scores

19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.204
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07611817).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IGLL1NM_020070.4 linkuse as main transcriptc.284C>G p.Thr95Arg missense_variant 2/3 ENST00000330377.3 NP_064455.1
IGLL1NM_001369906.1 linkuse as main transcriptc.287C>G p.Thr96Arg missense_variant 2/3 NP_001356835.1
IGLL1NM_152855.3 linkuse as main transcriptc.207-1420C>G intron_variant NP_690594.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IGLL1ENST00000330377.3 linkuse as main transcriptc.284C>G p.Thr95Arg missense_variant 2/31 NM_020070.4 ENSP00000329312 P1P15814-1
IGLL1ENST00000249053.3 linkuse as main transcriptc.207-1420C>G intron_variant 1 ENSP00000249053 P15814-2
IGLL1ENST00000438703.1 linkuse as main transcriptc.287C>G p.Thr96Arg missense_variant 2/32 ENSP00000403391

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251362
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135878
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
6.84e-7
AC:
1
AN:
1461502
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727080
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.052
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
0.55
DANN
Benign
0.82
DEOGEN2
Benign
0.19
T;.
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.00050
N
LIST_S2
Benign
0.078
T;T
M_CAP
Benign
0.0045
T
MetaRNN
Benign
0.076
T;T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
-0.34
N;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-0.29
N;N
REVEL
Benign
0.14
Sift
Benign
0.26
T;T
Sift4G
Benign
0.38
T;.
Polyphen
0.027
B;.
Vest4
0.12
MutPred
0.35
Gain of MoRF binding (P = 0.0091);.;
MVP
0.12
MPC
0.058
ClinPred
0.079
T
GERP RS
0.47
Varity_R
0.23
gMVP
0.29

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs116041505; hg19: chr22-23917192; API