Genetic Variant ARID1B:p.Pro2017Thr (chr6-157206821-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001374828.1(ARID1B):c.6049C>A(p.Pro2017Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,778 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. 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. P2017S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ARID1B
NM_001374828.1 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.77

Publications

0 publications found

Variant links:

Genes affected

ARID1B (HGNC:18040): (AT-rich interaction domain 1B) This locus encodes an AT-rich DNA interacting domain-containing protein. The encoded protein is a component of the SWI/SNF chromatin remodeling complex and may play a role in cell-cycle activation. The protein encoded by this locus is similar to AT-rich interactive domain-containing protein 1A. These two proteins function as alternative, mutually exclusive ARID-subunits of the SWI/SNF complex. The associated complexes play opposing roles. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2016]

ARID1B Gene-Disease associations (from GenCC):

Coffin-Siris syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Illumina, ClinGen
Coffin-Siris syndrome 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics

ARID1B links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.09534371).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001374828.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ARID1B	NM_001374828.1	MANE Select	c.6049C>A	p.Pro2017Thr	missense	Exon 20 of 20	NP_001361757.1
ARID1B	NM_001438482.1		c.6178C>A	p.Pro2060Thr	missense	Exon 21 of 21	NP_001425411.1
ARID1B	NM_001438483.1		c.6091C>A	p.Pro2031Thr	missense	Exon 21 of 21	NP_001425412.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ARID1B	ENST00000636930.2	TSL:2 MANE Select	c.6049C>A	p.Pro2017Thr	missense	Exon 20 of 20	ENSP00000490491.2
ARID1B	ENST00000346085.10	TSL:1	c.5929C>A	p.Pro1977Thr	missense	Exon 21 of 21	ENSP00000344546.5
ARID1B	ENST00000350026.11	TSL:1	c.5890C>A	p.Pro1964Thr	missense	Exon 19 of 19	ENSP00000055163.8

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461778

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727190

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53310

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112008

Other (OTH)

AF:

0.00

AC:

AN:

60394

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

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.059

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.57

CADD

Benign

(source)

DANN

Benign

0.90

DEOGEN2

Benign

0.029

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.24

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.88

M_CAP

Benign

0.013

MetaRNN

Benign

0.095

MetaSVM

Benign

-0.91

MutationAssessor

Benign

1.9

PhyloP100

1.8

PrimateAI

Benign

0.39

PROVEAN

Benign

-0.20

REVEL

Benign

0.031

Sift

Benign

0.076

Sift4G

Benign

0.38

Polyphen

0.029

Vest4

0.19

MutPred

0.12

Gain of phosphorylation at P1881 (P = 0.0275)

MVP

0.33

MPC

0.73

ClinPred

0.10

GERP RS

3.1

PromoterAI

0.030

Neutral

(source)

Varity_R

0.037

gMVP

0.65

Mutation Taster

=92/8

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over