14-71588618-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001386936.1(SIPA1L1):​c.746C>T​(p.Thr249Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000351 in 1,613,960 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00037 ( 0 hom. )

Consequence

SIPA1L1
NM_001386936.1 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.50
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04774037).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SIPA1L1NM_001386936.1 linkuse as main transcriptc.746C>T p.Thr249Ile missense_variant 5/24 ENST00000381232.8 NP_001373865.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SIPA1L1ENST00000381232.8 linkuse as main transcriptc.746C>T p.Thr249Ile missense_variant 5/241 NM_001386936.1 ENSP00000370630 P4O43166-2
SIPA1L1ENST00000555818.5 linkuse as main transcriptc.746C>T p.Thr249Ile missense_variant 2/221 ENSP00000450832 O43166-1
ENST00000647653.1 linkuse as main transcriptn.744G>A non_coding_transcript_exon_variant 2/2
SIPA1L1ENST00000358550.6 linkuse as main transcriptc.746C>T p.Thr249Ile missense_variant 2/212 ENSP00000351352 A1O43166-3

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
27
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.000265
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000160
AC:
40
AN:
250302
Hom.:
0
AF XY:
0.000200
AC XY:
27
AN XY:
135248
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000293
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000369
AC:
540
AN:
1461798
Hom.:
0
Cov.:
30
AF XY:
0.000334
AC XY:
243
AN XY:
727204
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000465
Gnomad4 OTH exome
AF:
0.000248
GnomAD4 genome
AF:
0.000177
AC:
27
AN:
152162
Hom.:
0
Cov.:
32
AF XY:
0.000242
AC XY:
18
AN XY:
74322
show subpopulations
Gnomad4 AFR
AF:
0.0000724
Gnomad4 AMR
AF:
0.000393
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000265
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000308
Hom.:
0
Bravo
AF:
0.000174
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000123
AC:
15
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000533

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 24, 2024The c.746C>T (p.T249I) alteration is located in exon 2 (coding exon 1) of the SIPA1L1 gene. This alteration results from a C to T substitution at nucleotide position 746, causing the threonine (T) at amino acid position 249 to be replaced by an isoleucine (I). 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
0.16
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
16
DANN
Benign
0.91
DEOGEN2
Benign
0.032
.;T;.
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.20
FATHMM_MKL
Benign
0.69
D
LIST_S2
Uncertain
0.87
D;D;D
M_CAP
Benign
0.0042
T
MetaRNN
Benign
0.048
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.34
N;N;N
MutationTaster
Benign
0.94
N;N;N
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-0.79
N;N;N
REVEL
Benign
0.043
Sift
Benign
0.18
T;T;T
Sift4G
Benign
0.15
T;T;T
Polyphen
0.0020
B;B;.
Vest4
0.093
MVP
0.22
MPC
0.37
ClinPred
0.030
T
GERP RS
5.2
Varity_R
0.035
gMVP
0.13

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs149278828; hg19: chr14-72055335; API