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GeneBe

20-33002596-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_080675.4(SUN5):c.202G>A(p.Gly68Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,614,100 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 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SUN5
NM_080675.4 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.03
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.11398196).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SUN5NM_080675.4 linkuse as main transcriptc.202G>A p.Gly68Arg missense_variant 3/13 ENST00000356173.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SUN5ENST00000356173.8 linkuse as main transcriptc.202G>A p.Gly68Arg missense_variant 3/131 NM_080675.4 P2
SUN5ENST00000420875.5 linkuse as main transcriptc.169G>A p.Gly57Arg missense_variant 3/53
SUN5ENST00000375519.2 linkuse as main transcriptc.202G>A p.Gly68Arg missense_variant 3/42
SUN5ENST00000375523.7 linkuse as main transcriptc.136+265G>A intron_variant 5 A2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152228
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:
0.000385
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:
0.0000318
AC:
8
AN:
251450
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135894
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000435
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:
0.00000274
AC:
4
AN:
1461872
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152228
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74376
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.0000412
AC:
5

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 GeneticsOct 20, 2023The c.202G>A (p.G68R) alteration is located in exon 3 (coding exon 3) of the SUN5 gene. This alteration results from a G to A substitution at nucleotide position 202, causing the glycine (G) at amino acid position 68 to be replaced by an arginine (R). 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
0.30
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.32
Cadd
Benign
22
Dann
Uncertain
1.0
DEOGEN2
Benign
0.020
T;T;T
Eigen
Uncertain
0.26
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Benign
0.61
D
LIST_S2
Benign
0.67
T;T;T
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.11
T;T;T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
1.8
L;.;.
MutationTaster
Benign
1.0
D;N;N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.48
N;D;D
REVEL
Benign
0.086
Sift
Uncertain
0.0040
D;D;D
Sift4G
Benign
0.069
T;D;D
Polyphen
0.84
P;.;.
Vest4
0.55
MutPred
0.50
Gain of MoRF binding (P = 0.0697);.;Gain of MoRF binding (P = 0.0697);
MVP
0.29
MPC
0.45
ClinPred
0.27
T
GERP RS
4.1
Varity_R
0.12
gMVP
0.22

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: rs747822378; hg19: chr20-31590402; API