14-71588545-T-G

Position:

• chr14-71588545-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001386936.1(SIPA1L1):​c.673T>G​(p.Leu225Val) 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. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SIPA1L1 NM_001386936.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.33

Genes affected

SIPA1L1 (HGNC:20284): (signal induced proliferation associated 1 like 1) Predicted to enable GTPase activator activity; actin filament binding activity; and protein kinase binding activity. Predicted to be involved in several processes, including actin cytoskeleton organization; activation of GTPase activity; and regulation of postsynapse organization. Located in actin cytoskeleton and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

ACMG classification

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=0.16246435).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SIPA1L1	NM_001386936.1	c.673T>G	p.Leu225Val	missense_variant	5/24	ENST00000381232.8	NP_001373865.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SIPA1L1	ENST00000381232.8	c.673T>G	p.Leu225Val	missense_variant	5/24	1	NM_001386936.1	ENSP00000370630	P4
SIPA1L1	ENST00000555818.5	c.673T>G	p.Leu225Val	missense_variant	2/22	1		ENSP00000450832
	ENST00000647653.1	n.817A>C		non_coding_transcript_exon_variant	2/2
SIPA1L1	ENST00000358550.6	c.673T>G	p.Leu225Val	missense_variant	2/21	2		ENSP00000351352	A1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 23, 2024

The c.673T>G (p.L225V) alteration is located in exon 2 (coding exon 1) of the SIPA1L1 gene. This alteration results from a T to G substitution at nucleotide position 673, causing the leucine (L) at amino acid position 225 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.092	T
BayesDel_noAF	Benign	-0.37
CADD	Benign	19
DANN	Benign	0.88
DEOGEN2	Benign	0.046	.;T;.
Eigen	Benign	-0.46
Eigen_PC	Benign	-0.44
FATHMM_MKL	Uncertain	0.79	D
LIST_S2	Benign	0.79	T;T;T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.16	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.1	L;L;L
MutationTaster	Benign	0.99	D;D;D
PrimateAI	Uncertain	0.69	T
PROVEAN	Benign	-0.60	N;N;N
REVEL	Benign	0.17
Sift	Benign	0.068	T;T;T
Sift4G	Benign	0.16	T;T;T
Polyphen		0.10	B;P;.
Vest4		0.35
MutPred		0.31		Gain of methylation at K227 (P = 0.0548);Gain of methylation at K227 (P = 0.0548);Gain of methylation at K227 (P = 0.0548);
MVP		0.33
MPC		1.0
ClinPred		0.33	T
GERP RS		-0.14
Varity_R		0.051
gMVP		0.41

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr14-72055262;