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GeneBe

5-169594598-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_017785.5(SPDL1):​c.808C>T​(p.Arg270Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000821 in 1,461,628 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

SPDL1
NM_017785.5 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.08
Variant links:
Genes affected
SPDL1 (HGNC:26010): (spindle apparatus coiled-coil protein 1) This gene encodes a coiled-coil domain-containing protein that functions in mitotic spindle formation and chromosome segregation. The encoded protein plays a role in coordinating microtubule attachment by promoting recruitment of dynein proteins, and in mitotic checkpoint signaling. [provided by RefSeq, Jul 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.28079465).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPDL1NM_017785.5 linkuse as main transcriptc.808C>T p.Arg270Cys missense_variant 7/12 ENST00000265295.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPDL1ENST00000265295.9 linkuse as main transcriptc.808C>T p.Arg270Cys missense_variant 7/121 NM_017785.5 P1Q96EA4-1
SPDL1ENST00000510751.5 linkuse as main transcriptn.965C>T non_coding_transcript_exon_variant 7/81
SPDL1ENST00000507232.5 linkuse as main transcriptc.*588C>T 3_prime_UTR_variant, NMD_transcript_variant 7/111
SPDL1ENST00000505977.1 linkuse as main transcriptc.595C>T p.Arg199Cys missense_variant 5/85

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250904
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135602
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS 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:
0.00000821
AC:
12
AN:
1461628
Hom.:
0
Cov.:
30
AF XY:
0.00000550
AC XY:
4
AN XY:
727126
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000899
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1

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 GeneticsJan 23, 2024The c.808C>T (p.R270C) alteration is located in exon 7 (coding exon 6) of the SPDL1 gene. This alteration results from a C to T substitution at nucleotide position 808, causing the arginine (R) at amino acid position 270 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
0.21
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.32
CADD
Uncertain
24
DANN
Uncertain
0.98
DEOGEN2
Benign
0.21
T
Eigen
Benign
-0.077
Eigen_PC
Benign
-0.074
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.90
D
M_CAP
Uncertain
0.097
D
MetaRNN
Benign
0.28
T
MetaSVM
Benign
-0.56
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.51
T
PROVEAN
Pathogenic
-5.2
D
REVEL
Benign
0.18
Sift
Uncertain
0.023
D
Sift4G
Pathogenic
0.0010
D
Polyphen
0.73
P
Vest4
0.36
MutPred
0.26
Gain of catalytic residue at M268 (P = 0.0011);
MVP
0.44
MPC
0.27
ClinPred
0.97
D
GERP RS
3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.44
gMVP
0.29

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: rs749122828; hg19: chr5-169021602; API