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GeneBe

20-33002902-C-T

Variant summary

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

The NM_080675.4(SUN5):c.95G>A(p.Arg32Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000133 in 1,614,034 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 0.000072 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

SUN5
NM_080675.4 missense

Scores

17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.732
Variant links:
Genes affected
SUN5 (HGNC:16252): (Sad1 and UNC84 domain containing 5) The protein encoded by this gene appears to play a role in the meiotic stage of spermatogenesis. The encoded protein localizes to the junction between the sperm head and body and may be involved in nuclear envelope reconstitution and nuclear migration. Mutations in this gene have been implicated in acephalic spermatozoa syndrome. [provided by RefSeq, May 2017]

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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=0.06006679).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SUN5NM_080675.4 linkuse as main transcriptc.95G>A p.Arg32Gln missense_variant 2/13 ENST00000356173.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SUN5ENST00000356173.8 linkuse as main transcriptc.95G>A p.Arg32Gln missense_variant 2/131 NM_080675.4 P2
SUN5ENST00000375523.7 linkuse as main transcriptc.95G>A p.Arg32Gln missense_variant 2/125 A2
SUN5ENST00000420875.5 linkuse as main transcriptc.62G>A p.Arg21Gln missense_variant 2/53
SUN5ENST00000375519.2 linkuse as main transcriptc.95G>A p.Arg32Gln missense_variant 2/42

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152192
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000477
AC:
12
AN:
251422
Hom.:
0
AF XY:
0.0000662
AC XY:
9
AN XY:
135882
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000140
AC:
204
AN:
1461842
Hom.:
0
Cov.:
33
AF XY:
0.000117
AC XY:
85
AN XY:
727222
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000173
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.0000723
AC:
11
AN:
152192
Hom.:
0
Cov.:
32
AF XY:
0.0000807
AC XY:
6
AN XY:
74336
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:
0.000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000921
Hom.:
0
Bravo
AF:
0.000102
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.0000494
AC:
6
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 GeneticsMay 04, 2023The c.95G>A (p.R32Q) alteration is located in exon 2 (coding exon 2) of the SUN5 gene. This alteration results from a G to A substitution at nucleotide position 95, causing the arginine (R) at amino acid position 32 to be replaced by a glutamine (Q). 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
0.079
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.59
Cadd
Benign
18
Dann
Benign
0.85
Eigen
Benign
-0.85
Eigen_PC
Benign
-0.87
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.76
T;T;T;T
M_CAP
Benign
0.0050
T
MetaRNN
Benign
0.060
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-0.17
N;N;N;D
REVEL
Benign
0.014
Sift
Benign
0.16
T;T;T;T
Sift4G
Benign
0.40
T;T;T;T
Polyphen
0.13
.;B;.;.
Vest4
0.27
MVP
0.014
MPC
0.19
ClinPred
0.032
T
GERP RS
1.9
Varity_R
0.038
gMVP
0.059

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.15
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: rs149962354; hg19: chr20-31590708; COSMIC: COSV104383572; COSMIC: COSV104383572; API