1-232402417-C-G

Variant names:

• chr1-232402417-C-G
• rs368811235
• NM_020808.5:c.4997G>C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_020808.5(SIPA1L2):​c.4997G>C​(p.Arg1666Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,174 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R1666Q) has been classified as Uncertain significance.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: SIPA1L2 NM_020808.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.82
• Publications: 7 publications found

Genes affected

SIPA1L2 (HGNC:23800): (signal induced proliferation associated 1 like 2) This gene encodes a member of the signal-induced proliferation-associated 1 like family. Members of this family contain a GTPase activating domain, a PDZ domain and a C-terminal coiled-coil domain with a leucine zipper. A similar protein in rat acts as a GTPases for the small GTPase Rap. [provided by RefSeq, Sep 2015]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020808.5. 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
	SIPA1L2	NM_020808.5	MANE Select	c.4997G>C	p.Arg1666Pro	missense	Exon 22 of 23	NP_065859.3	Q9P2F8-1
	SIPA1L2	NM_001377488.1		c.4943G>C	p.Arg1648Pro	missense	Exon 21 of 22	NP_001364417.1	A0A6Q8PH54

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SIPA1L2	ENST00000674635.1	MANE Select	c.4997G>C	p.Arg1666Pro	missense	Exon 22 of 23	ENSP00000502693.1	Q9P2F8-1
	SIPA1L2	ENST00000676213.1		c.5150G>C	p.Arg1717Pro	missense	Exon 22 of 23	ENSP00000501897.1	A0A6Q8PFQ0
	SIPA1L2	ENST00000964479.1		c.5150G>C	p.Arg1717Pro	missense	Exon 23 of 24	ENSP00000634538.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152174 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 30

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152174 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74332

African (AFR) AF: 0.0000241 AC: 1 AN: 41438

American (AMR) AF: 0.00 AC: 0 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10596

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68046

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Uncertain	0.080	D
BayesDel_noAF	Benign	-0.12
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Benign	0.20	T
Eigen	Uncertain	0.45
Eigen_PC	Uncertain	0.37
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.034	D
MetaRNN	Uncertain	0.63	D
MetaSVM	Benign	-0.75	T
MutationAssessor	Uncertain	2.3	M
PhyloP100		3.8
PrimateAI	Uncertain	0.76	T
PROVEAN	Uncertain	-3.0	D
REVEL	Benign	0.22
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.0080	D
Polyphen		0.99	D
Vest4		0.72
MutPred		0.42		Loss of MoRF binding (P = 6e-04)
MVP		0.15
MPC		0.87
ClinPred		0.99	D
GERP RS		5.5
Varity_R		0.83
gMVP		0.57
Mutation Taster		=57/43	polymorphism

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

Other links and lift over

dbSNP: rs368811235; hg19: chr1-232538163;