rs79113972

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_153240.5(NPHP3):​c.1887+6G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00116 in 1,613,876 control chromosomes in the GnomAD database, including 21 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0061 ( 7 hom., cov: 33)
Exomes 𝑓: 0.00065 ( 14 hom. )

Consequence

NPHP3
NM_153240.5 splice_region, intron

Scores

2
Splicing: ADA: 0.0005750
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:10

Conservation

PhyloP100: -0.398

Publications

0 publications found
Variant links:
Genes affected
NPHP3 (HGNC:7907): (nephrocystin 3) This gene encodes a protein containing a coiled-coil (CC) domain, a tubulin-tyrosine ligase (TTL) domain, and a tetratrico peptide repeat (TPR) domain. The encoded protein interacts with nephrocystin, it is required for normal ciliary development, and it functions in renal tubular development. Mutations in this gene are associated with nephronophthisis type 3, and also with renal-hepatic-pancreatic dysplasia, and Meckel syndrome type 7. Naturally occurring read-through transcripts exist between this gene and the downstream ACAD11 (acyl-CoA dehydrogenase family, member 11) gene. [provided by RefSeq, Feb 2011]
NPHP3-ACAD11 (HGNC:48351): (NPHP3-ACAD11 readthrough (NMD candidate)) This locus represents naturally occurring read-through transcription between the neighboring NPHP3 (nephronophthisis 3, adolescent) and ACAD11 (acyl-CoA dehydrogenase family, member 11) genes on chromosome 3. The read-through transcript is a candidate for nonsense-mediated mRNA decay (NMD), and is thus unlikely to produce a protein product. [provided by RefSeq, Feb 2011]

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP6
Variant 3-132699912-C-T is Benign according to our data. Variant chr3-132699912-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 262693.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00607 (924/152200) while in subpopulation AFR AF = 0.0208 (864/41526). AF 95% confidence interval is 0.0197. There are 7 homozygotes in GnomAd4. There are 442 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 7 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_153240.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NPHP3
NM_153240.5
MANE Select
c.1887+6G>A
splice_region intron
N/ANP_694972.3
NPHP3-ACAD11
NR_037804.1
n.1991+6G>A
splice_region intron
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NPHP3
ENST00000337331.10
TSL:1 MANE Select
c.1887+6G>A
splice_region intron
N/AENSP00000338766.5
NPHP3
ENST00000971413.1
c.1887+6G>A
splice_region intron
N/AENSP00000641472.1
NPHP3
ENST00000971412.1
c.1887+6G>A
splice_region intron
N/AENSP00000641471.1

Frequencies

GnomAD3 genomes
AF:
0.00608
AC:
924
AN:
152082
Hom.:
7
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0209
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00256
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00718
GnomAD2 exomes
AF:
0.00158
AC:
396
AN:
251286
AF XY:
0.00115
show subpopulations
Gnomad AFR exome
AF:
0.0209
Gnomad AMR exome
AF:
0.00104
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000880
Gnomad OTH exome
AF:
0.00130
GnomAD4 exome
AF:
0.000649
AC:
948
AN:
1461676
Hom.:
14
Cov.:
31
AF XY:
0.000520
AC XY:
378
AN XY:
727154
show subpopulations
African (AFR)
AF:
0.0222
AC:
744
AN:
33478
American (AMR)
AF:
0.00159
AC:
71
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39682
South Asian (SAS)
AF:
0.0000928
AC:
8
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53388
Middle Eastern (MID)
AF:
0.000694
AC:
4
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000270
AC:
30
AN:
1111866
Other (OTH)
AF:
0.00151
AC:
91
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
46
91
137
182
228
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
26
52
78
104
130
<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:
0.00607
AC:
924
AN:
152200
Hom.:
7
Cov.:
33
AF XY:
0.00594
AC XY:
442
AN XY:
74412
show subpopulations
African (AFR)
AF:
0.0208
AC:
864
AN:
41526
American (AMR)
AF:
0.00255
AC:
39
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10580
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68018
Other (OTH)
AF:
0.00711
AC:
15
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
47
95
142
190
237
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00316
Hom.:
4
Bravo
AF:
0.00690
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000178

ClinVar

ClinVar submissions as Germline
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
4
not provided (4)
-
-
3
not specified (3)
-
-
1
Nephronophthisis (1)
-
-
1
Nephronophthisis 3 (1)
-
1
-
NPHP3-related Meckel-like syndrome (1)
-
-
1
Renal-hepatic-pancreatic dysplasia 1 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
8.0
DANN
Benign
0.60
PhyloP100
-0.40
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=99/1
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00058
dbscSNV1_RF
Benign
0.032
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: rs79113972; hg19: chr3-132418756; API