Genetic Variant NM_030877.5:c.980G>T (chr20-37779284-G-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_030877.5(CTNNBL1):c.980G>T(p.Arg327Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,516 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R327H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CTNNBL1
NM_030877.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.75

Publications

0 publications found

Variant links:

Genes affected

CTNNBL1 (HGNC:15879): (catenin beta like 1) The protein encoded by this gene is a component of the pre-mRNA-processing factor 19-cell division cycle 5-like (PRP19-CDC5L) protein complex, which activates pre-mRNA splicing and is an integral part of the spliceosome. The encoded protein is also a nuclear localization sequence binding protein, and binds to activation-induced deaminase and is important for antibody diversification. This gene may also be associated with the development of obesity. Alternative splicing results in multiple transcript variants. A pseudogene of this gene has been defined on the X chromosome. [provided by RefSeq, Jul 2013]

CTNNBL1 Gene-Disease associations (from GenCC):

common variable immunodeficiency
Inheritance: AR Classification: LIMITED Submitted by: ClinGen
immunodeficiency 99 with hypogammaglobulinemia and autoimmune cytopenias
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

CTNNBL1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.822

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030877.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CTNNBL1	NM_030877.5	MANE Select	c.980G>T	p.Arg327Leu	missense	Exon 10 of 16	NP_110517.2
	CTNNBL1	NM_001281495.2		c.899G>T	p.Arg300Leu	missense	Exon 11 of 17	NP_001268424.1	Q8WYA6-4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CTNNBL1	ENST00000361383.11	TSL:1 MANE Select	c.980G>T	p.Arg327Leu	missense	Exon 10 of 16	ENSP00000355050.6	Q8WYA6-1
CTNNBL1	ENST00000628103.2	TSL:2	c.899G>T	p.Arg300Leu	missense	Exon 11 of 17	ENSP00000487198.1	Q8WYA6-4
CTNNBL1	ENST00000373473.5	TSL:1	c.419G>T	p.Arg140Leu	missense	Exon 7 of 13	ENSP00000362572.1	Q8WYA6-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251354

AF XY:

0.00000736

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461516

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727066

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33464

American (AMR)

AF:

0.00

AC:

AN:

44710

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26120

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111716

Other (OTH)

AF:

0.00

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.98

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Pathogenic

0.22

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.64

Eigen

Pathogenic

0.81

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

M_CAP

Benign

0.065

MetaRNN

Pathogenic

0.82

MetaSVM

Benign

-0.30

MutationAssessor

Pathogenic

2.9

PhyloP100

9.7

PrimateAI

Pathogenic

0.87

PROVEAN

Pathogenic

-5.9

REVEL

Uncertain

0.56

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0090

Polyphen

0.99

Vest4

0.83

MutPred

0.39

Gain of helix (P = 0.0143)

MVP

0.63

MPC

1.4

ClinPred

0.99

GERP RS

5.0

Varity_R

0.90

gMVP

0.85

Mutation Taster

=15/85

disease causing

(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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over