Genetic Variant SIPA1L3:p.Asn43Ser (chr19-38081693-A-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

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

The NM_015073.3(SIPA1L3):c.128A>G(p.Asn43Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000959 in 1,459,350 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 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. N43T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

SIPA1L3
NM_015073.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.00

Publications

0 publications found

Variant links:

Genes affected

SIPA1L3 (HGNC:23801): (signal induced proliferation associated 1 like 3) This gene belongs to the signal induced proliferation associated 1 family of genes, which encode GTPase-activating proteins specific for the GTP-binding protein Rap1. Rap1 has been implicated in regulation of cell adhesion, cell polarity, and organization of the cytoskeleton. Like other members of the family, the protein encoded by this gene contains RapGAP and PDZ domains. In addition, this protein contains a C-terminal leucine zipper domain. This gene is proposed to function in epithelial cell morphogenesis and establishment or maintenance of polarity. Consistently, expression of the protein in cell culture showed localization to cell-cell borders in apical regions, and downregulation of the gene in 3D Caco2 cell culture resulted in abnormal cell polarity and morphogenesis. Allelic variants of this gene have been associated with congenital cataracts in humans. [provided by RefSeq, Feb 2016]

SIPA1L3 Gene-Disease associations (from GenCC):

cataract 45
Inheritance: AD, AR, SD, Unknown Classification: MODERATE, LIMITED Submitted by: PanelApp Australia, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
total early-onset cataract
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

SIPA1L3 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=0.16449195).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015073.3. 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
	SIPA1L3	NM_015073.3	MANE Select	c.128A>G	p.Asn43Ser	missense	Exon 3 of 22	NP_055888.1	O60292

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SIPA1L3	ENST00000222345.11	TSL:1 MANE Select	c.128A>G	p.Asn43Ser	missense	Exon 3 of 22	ENSP00000222345.4	O60292
SIPA1L3	ENST00000911499.1		c.128A>G	p.Asn43Ser	missense	Exon 2 of 21	ENSP00000581558.1
SIPA1L3	ENST00000911500.1		c.128A>G	p.Asn43Ser	missense	Exon 3 of 22	ENSP00000581559.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000165

AC:

AN:

242262

AF XY:

0.0000301

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:

0.00000959

AC:

AN:

1459350

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

725982

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44668

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26114

East Asian (EAS)

AF:

0.00

AC:

AN:

39676

South Asian (SAS)

AF:

0.000151

AC:

AN:

86214

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51532

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5702

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111690

Other (OTH)

AF:

0.00

AC:

AN:

60280

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.443

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.:

ExAC

AF:

0.0000165

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.35

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.038

Eigen

Benign

-0.080

Eigen_PC

Benign

0.11

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.78

M_CAP

Benign

0.036

MetaRNN

Benign

0.16

MetaSVM

Benign

-0.68

MutationAssessor

Benign

2.0

PhyloP100

4.0

PrimateAI

Uncertain

0.65

PROVEAN

Benign

-2.2

REVEL

Benign

0.27

Sift

Benign

0.059

Sift4G

Benign

0.084

Polyphen

0.13

Vest4

0.49

MutPred

0.42

Gain of glycosylation at N43 (P = 0.021)

MVP

0.61

MPC

0.55

ClinPred

0.24

GERP RS

5.1

Varity_R

0.062

gMVP

0.46

Mutation Taster

=97/3

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