7-35879853-G-C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP3_Moderate

The NM_001788.6(SEPTIN7):​c.543G>C​(p.Lys181Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000891 in 1,594,122 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000096 ( 0 hom. )

Consequence

SEPTIN7
NM_001788.6 missense

Scores

3
9
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.950

Publications

0 publications found
Variant links:
Genes affected
SEPTIN7 (HGNC:1717): (septin 7) This gene encodes a protein that is highly similar to the CDC10 protein of Saccharomyces cerevisiae. The protein also shares similarity with Diff 6 of Drosophila and with H5 of mouse. Each of these similar proteins, including the yeast CDC10, contains a GTP-binding motif. The yeast CDC10 protein is a structural component of the 10 nm filament which lies inside the cytoplasmic membrane and is essential for cytokinesis. This human protein functions in gliomagenesis and in the suppression of glioma cell growth, and it is required for the association of centromere-associated protein E with the kinetochore. Alternative splicing results in multiple transcript variants. Several related pseudogenes have been identified on chromosomes 5, 7, 9, 10, 11, 14, 17 and 19. [provided by RefSeq, Jul 2011]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.867

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SEPTIN7NM_001788.6 linkc.543G>C p.Lys181Asn missense_variant Exon 7 of 14 ENST00000350320.11 NP_001779.3 Q16181-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SEPTIN7ENST00000350320.11 linkc.543G>C p.Lys181Asn missense_variant Exon 7 of 14 5 NM_001788.6 ENSP00000344868.8 Q16181-1E7EPK1
SEPTIN7ENST00000635047.1 linkc.384G>C p.Lys128Asn missense_variant Exon 7 of 7 4 ENSP00000489480.1 A0A0U1RRE1
SEPTIN7ENST00000635175.1 linkn.*460G>C non_coding_transcript_exon_variant Exon 7 of 14 2 ENSP00000489192.1 A0A0U1RQW0
SEPTIN7ENST00000635175.1 linkn.*460G>C 3_prime_UTR_variant Exon 7 of 14 2 ENSP00000489192.1 A0A0U1RQW0

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152178
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000222
AC:
5
AN:
224924
AF XY:
0.0000248
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000499
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000964
AC:
139
AN:
1441944
Hom.:
0
Cov.:
28
AF XY:
0.0000866
AC XY:
62
AN XY:
715628
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33132
American (AMR)
AF:
0.00
AC:
0
AN:
42352
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25698
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39256
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83078
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52552
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5714
European-Non Finnish (NFE)
AF:
0.000124
AC:
137
AN:
1100454
Other (OTH)
AF:
0.0000335
AC:
2
AN:
59708
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
6
11
17
22
28
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74342
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41442
American (AMR)
AF:
0.00
AC:
0
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5204
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000450
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.00000829
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Aug 27, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.543G>C (p.K181N) alteration is located in exon 7 (coding exon 7) of the SEPT7 gene. This alteration results from a G to C substitution at nucleotide position 543, causing the lysine (K) at amino acid position 181 to be replaced by an asparagine (N). 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
Pathogenic
0.96
BayesDel_addAF
Benign
-0.092
T
BayesDel_noAF
Benign
-0.22
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.21
.;T;T;T;.;T
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Uncertain
0.94
D;D;D;D;D;D
M_CAP
Uncertain
0.10
D
MetaRNN
Pathogenic
0.87
D;D;D;D;D;D
MetaSVM
Uncertain
-0.20
T
PhyloP100
0.95
PrimateAI
Pathogenic
0.89
D
REVEL
Uncertain
0.53
Sift4G
Uncertain
0.0020
D;D;D;D;D;D
Vest4
0.90
MutPred
0.79
.;Loss of ubiquitination at K181 (P = 0.0283);.;.;.;.;
MVP
0.88
MPC
1.9
ClinPred
0.98
D
GERP RS
1.0
gMVP
0.84
Mutation Taster
=19/81
disease causing

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

Other links and lift over

dbSNP: rs765728361; hg19: chr7-35919463; API