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GeneBe

5-39285236-A-G

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001737.5(C9):c.1646-3T>C variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000594 in 1,611,696 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0034 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00031 ( 1 hom. )

Consequence

C9
NM_001737.5 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00007861
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.29
Variant links:
Genes affected
C9 (HGNC:1358): (complement C9) This gene encodes the final component of the complement system. It participates in the formation of the Membrane Attack Complex (MAC). The MAC assembles on bacterial membranes to form a pore, permitting disruption of bacterial membrane organization. Mutations in this gene cause component C9 deficiency. [provided by RefSeq, Feb 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 5-39285236-A-G is Benign according to our data. Variant chr5-39285236-A-G is described in ClinVar as [Benign]. Clinvar id is 1166301.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High Homozygotes in GnomAd at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
C9NM_001737.5 linkuse as main transcriptc.1646-3T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000263408.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
C9ENST00000263408.5 linkuse as main transcriptc.1646-3T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_001737.5 P2

Frequencies

GnomAD3 genomes
AF:
0.00337
AC:
513
AN:
152118
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0114
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00249
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:
0.00
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000964
AC:
242
AN:
251116
Hom.:
2
AF XY:
0.000641
AC XY:
87
AN XY:
135730
show subpopulations
Gnomad AFR exome
AF:
0.0130
Gnomad AMR exome
AF:
0.000811
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000306
AC:
446
AN:
1459460
Hom.:
1
Cov.:
29
AF XY:
0.000245
AC XY:
178
AN XY:
726204
show subpopulations
Gnomad4 AFR exome
AF:
0.00981
Gnomad4 AMR exome
AF:
0.00107
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000631
Gnomad4 OTH exome
AF:
0.000862
GnomAD4 genome
AF:
0.00336
AC:
512
AN:
152236
Hom.:
2
Cov.:
32
AF XY:
0.00298
AC XY:
222
AN XY:
74428
show subpopulations
Gnomad4 AFR
AF:
0.0114
Gnomad4 AMR
AF:
0.00249
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.00196
Hom.:
1
Bravo
AF:
0.00409
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 19, 2024- -
C9-related disorder Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJul 11, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
Cadd
Benign
7.8
Dann
Benign
0.65

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000079
dbscSNV1_RF
Benign
0.0080
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: rs141471456; hg19: chr5-39285338; API