6-110210735-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_015891.3(CDC40):​c.659C>T​(p.Thr220Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000887 in 1,577,578 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 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: 32)
Exomes 𝑓: 0.0000091 ( 0 hom. )

Consequence

CDC40
NM_015891.3 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.48
Variant links:
Genes affected
CDC40 (HGNC:17350): (cell division cycle 40) Pre-mRNA splicing occurs in two sequential transesterification steps. The protein encoded by this gene is found to be essential for the catalytic step II in pre-mRNA splicing process. It is found in the spliceosome, and contains seven WD repeats, which function in protein-protein interactions. This protein has a sequence similarity to yeast Prp17 protein, which functions in two different cellular processes: pre-mRNA splicing and cell cycle progression. It suggests that this protein may play a role in cell cycle progression. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.047204018).
BS2
High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CDC40NM_015891.3 linkuse as main transcriptc.659C>T p.Thr220Ile missense_variant 6/15 ENST00000307731.2
CDC40XM_047418862.1 linkuse as main transcriptc.-77C>T 5_prime_UTR_variant 4/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CDC40ENST00000307731.2 linkuse as main transcriptc.659C>T p.Thr220Ile missense_variant 6/151 NM_015891.3 P1
CDC40ENST00000368932.5 linkuse as main transcriptc.659C>T p.Thr220Ile missense_variant 7/165 P1
CDC40ENST00000368930.5 linkuse as main transcriptc.659C>T p.Thr220Ile missense_variant 6/152
CDC40ENST00000606893.5 linkuse as main transcriptn.760C>T non_coding_transcript_exon_variant 7/152

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151946
Hom.:
0
Cov.:
32
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:
0.000193
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:
0.0000844
AC:
19
AN:
224988
Hom.:
0
AF XY:
0.0000654
AC XY:
8
AN XY:
122264
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00119
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:
0.00000912
AC:
13
AN:
1425632
Hom.:
0
Cov.:
28
AF XY:
0.00000564
AC XY:
4
AN XY:
708956
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000342
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151946
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74210
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000680
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000989
AC:
12

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 18, 2023The c.659C>T (p.T220I) alteration is located in exon 6 (coding exon 6) of the CDC40 gene. This alteration results from a C to T substitution at nucleotide position 659, causing the threonine (T) at amino acid position 220 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
0.12
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Uncertain
-0.080
CADD
Benign
23
DANN
Benign
0.97
DEOGEN2
Benign
0.076
T;T;T
Eigen
Benign
0.15
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.85
.;D;T
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.047
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.7
L;L;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
0.67
N;N;N
REVEL
Benign
0.17
Sift
Benign
0.40
T;T;T
Sift4G
Benign
0.41
T;T;T
Polyphen
0.31
B;B;.
Vest4
0.36
MutPred
0.36
Loss of phosphorylation at T220 (P = 0.0096);Loss of phosphorylation at T220 (P = 0.0096);Loss of phosphorylation at T220 (P = 0.0096);
MVP
0.53
MPC
0.77
ClinPred
0.099
T
GERP RS
5.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.46
gMVP
0.32

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: rs760430736; hg19: chr6-110531938; API