1-5887465-T-C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_015102.5(NPHP4):​c.2306A>G​(p.His769Arg) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000657 in 152,158 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H769L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

NPHP4
NM_015102.5 missense, splice_region

Scores

1
13
4
Splicing: ADA: 0.7942
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.66

Publications

2 publications found
Variant links:
Genes affected
NPHP4 (HGNC:19104): (nephrocystin 4) This gene encodes a protein involved in renal tubular development and function. This protein interacts with nephrocystin, and belongs to a multifunctional complex that is localized to actin- and microtubule-based structures. Mutations in this gene are associated with nephronophthisis type 4, a renal disease, and with Senior-Loken syndrome type 4, a combination of nephronophthisis and retinitis pigmentosa. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2014]
NPHP4 Gene-Disease associations (from GenCC):
  • nephronophthisis 4
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae), G2P
  • Senior-Loken syndrome 4
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • nephronophthisis 1
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Senior-Loken syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

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ACMG classification

Classification was made for transcript

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

PM2
Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015102.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NPHP4
NM_015102.5
MANE Select
c.2306A>Gp.His769Arg
missense splice_region
Exon 18 of 30NP_055917.1
NPHP4
NM_001291594.2
c.770A>Gp.His257Arg
missense splice_region
Exon 14 of 26NP_001278523.1
NPHP4
NM_001291593.2
c.767A>Gp.His256Arg
missense splice_region
Exon 15 of 27NP_001278522.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NPHP4
ENST00000378156.9
TSL:1 MANE Select
c.2306A>Gp.His769Arg
missense splice_region
Exon 18 of 30ENSP00000367398.4
NPHP4
ENST00000378169.7
TSL:1
n.*1207A>G
splice_region non_coding_transcript_exon
Exon 15 of 27ENSP00000367411.3
NPHP4
ENST00000466897.1
TSL:1
n.*120A>G
splice_region non_coding_transcript_exon
Exon 5 of 6ENSP00000425745.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152158
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
32
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152158
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74328
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41444
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
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:
0.00
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.29
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Uncertain
-0.030
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.61
D
Eigen
Uncertain
0.55
Eigen_PC
Uncertain
0.49
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.84
T
M_CAP
Uncertain
0.085
D
MetaRNN
Uncertain
0.52
D
MetaSVM
Uncertain
0.50
D
MutationAssessor
Uncertain
2.7
M
PhyloP100
4.7
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-4.0
D
REVEL
Pathogenic
0.67
Sift
Benign
0.22
T
Sift4G
Uncertain
0.018
D
Polyphen
1.0
D
Vest4
0.47
MutPred
0.56
Gain of MoRF binding (P = 0.0162)
MVP
0.96
MPC
0.30
ClinPred
0.99
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.20
gMVP
0.60
Mutation Taster
=78/22
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.79
dbscSNV1_RF
Benign
0.66
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: rs200821373; hg19: chr1-5947525; API