chr21-46161660-G-A

Variant summary

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

The NM_001142854.2(SPATC1L):​c.742C>T​(p.Arg248Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,608,402 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

SPATC1L
NM_001142854.2 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.49
Variant links:
Genes affected
SPATC1L (HGNC:1298): (spermatogenesis and centriole associated 1 like) Enables identical protein binding activity. Predicted to act upstream of or within several processes, including actin polymerization or depolymerization; positive regulation of cAMP-dependent protein kinase activity; and positive regulation of protein kinase A signaling. Predicted to be located in sperm connecting piece. Predicted to be active in centrosome. [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=0.047462165).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SPATC1LNM_001142854.2 linkuse as main transcriptc.742C>T p.Arg248Cys missense_variant 5/5 ENST00000291672.6 NP_001136326.1
SPATC1LNM_032261.5 linkuse as main transcriptc.280C>T p.Arg94Cys missense_variant 4/4 NP_115637.3
SPATC1LXM_005261188.6 linkuse as main transcriptc.742C>T p.Arg248Cys missense_variant 5/5 XP_005261245.1 Q9H0A9-1
SPATC1LXM_011529756.3 linkuse as main transcriptc.400C>T p.Arg134Cys missense_variant 3/3 XP_011528058.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SPATC1LENST00000291672.6 linkuse as main transcriptc.742C>T p.Arg248Cys missense_variant 5/52 NM_001142854.2 ENSP00000291672.5 Q9H0A9-1
SPATC1LENST00000330205.10 linkuse as main transcriptc.280C>T p.Arg94Cys missense_variant 4/41 ENSP00000333869.6 Q9H0A9-2

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151994
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000194
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
GnomAD3 exomes
AF:
0.0000689
AC:
16
AN:
232374
Hom.:
0
AF XY:
0.0000626
AC XY:
8
AN XY:
127704
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000797
Gnomad SAS exome
AF:
0.0000335
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000176
GnomAD4 exome
AF:
0.0000261
AC:
38
AN:
1456290
Hom.:
0
Cov.:
32
AF XY:
0.0000290
AC XY:
21
AN XY:
724108
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000379
Gnomad4 SAS exome
AF:
0.000128
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000811
Gnomad4 OTH exome
AF:
0.0000499
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152112
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000604
ExAC
AF:
0.0000833
AC:
10
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

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 GeneticsMar 29, 2023The c.742C>T (p.R248C) alteration is located in exon 5 (coding exon 4) of the SPATC1L gene. This alteration results from a C to T substitution at nucleotide position 742, causing the arginine (R) at amino acid position 248 to be replaced by a cysteine (C). 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
0.19
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.37
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.016
.;T
Eigen
Benign
0.052
Eigen_PC
Benign
0.0089
FATHMM_MKL
Benign
0.067
N
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.047
T;T
MetaSVM
Benign
-0.71
T
MutationAssessor
Benign
1.1
.;L
PrimateAI
Uncertain
0.63
T
PROVEAN
Benign
-2.0
N;N
REVEL
Benign
0.13
Sift
Uncertain
0.014
D;D
Sift4G
Uncertain
0.026
D;D
Polyphen
1.0
.;D
Vest4
0.23
MutPred
0.30
.;Loss of disorder (P = 0.011);
MVP
0.42
MPC
0.24
ClinPred
0.11
T
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.17
gMVP
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs745355464; hg19: chr21-47581574; API