10-103277269-G-C

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_032727.4(INA):​c.58G>C​(p.Gly20Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000188 in 1,594,128 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G20V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

INA
NM_032727.4 missense

Scores

6
6
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.03

Publications

0 publications found
Variant links:
Genes affected
INA (HGNC:6057): (internexin neuronal intermediate filament protein alpha) Neurofilaments are type IV intermediate filament heteropolymers composed of light, medium, and heavy chains. Neurofilaments comprise the axoskeleton and they functionally maintain the neuronal caliber. They may also play a role in intracellular transport to axons and dendrites. This gene is a member of the intermediate filament family and is involved in the morphogenesis of neurons. [provided by RefSeq, Jun 2009]
NT5C2 (HGNC:8022): (5'-nucleotidase, cytosolic II) This gene encodes a hydrolase that serves as an important role in cellular purine metabolism by acting primarily on inosine 5'-monophosphate and other purine nucleotides. [provided by RefSeq, Oct 2011]
NT5C2 Gene-Disease associations (from GenCC):
  • complex hereditary spastic paraplegia
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • hereditary spastic paraplegia 45
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 1 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 2.1276 (below the threshold of 3.09). Trascript score misZ: 0.35672 (below the threshold of 3.09).
PP3
MetaRNN computational evidence supports a deleterious effect, 0.936

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032727.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
INA
NM_032727.4
MANE Select
c.58G>Cp.Gly20Arg
missense
Exon 1 of 3NP_116116.1Q16352

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
INA
ENST00000369849.9
TSL:1 MANE Select
c.58G>Cp.Gly20Arg
missense
Exon 1 of 3ENSP00000358865.4Q16352
INA
ENST00000912062.1
c.58G>Cp.Gly20Arg
missense
Exon 1 of 3ENSP00000582121.1
NT5C2
ENST00000676428.1
c.-233C>G
5_prime_UTR
Exon 1 of 19ENSP00000501689.1P49902-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152052
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000465
AC:
1
AN:
214914
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000934
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000139
AC:
2
AN:
1442076
Hom.:
0
Cov.:
32
AF XY:
0.00000139
AC XY:
1
AN XY:
717644
show subpopulations
African (AFR)
AF:
0.0000326
AC:
1
AN:
30714
American (AMR)
AF:
0.00
AC:
0
AN:
43792
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25490
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37494
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84990
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48128
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5594
European-Non Finnish (NFE)
AF:
9.04e-7
AC:
1
AN:
1106178
Other (OTH)
AF:
0.00
AC:
0
AN:
59696
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152052
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74282
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41426
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5166
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67954
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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:
0.00000378

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.88
BayesDel_addAF
Uncertain
0.064
T
BayesDel_noAF
Uncertain
0.050
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.81
D
Eigen
Benign
0.11
Eigen_PC
Benign
0.17
FATHMM_MKL
Benign
0.63
D
LIST_S2
Benign
0.79
T
M_CAP
Pathogenic
0.94
D
MetaRNN
Pathogenic
0.94
D
MetaSVM
Uncertain
0.11
D
MutationAssessor
Benign
1.6
L
PhyloP100
3.0
PrimateAI
Pathogenic
0.85
D
PROVEAN
Uncertain
-3.3
D
REVEL
Pathogenic
0.71
Sift
Uncertain
0.0020
D
Sift4G
Benign
0.14
T
Polyphen
0.51
P
Vest4
0.72
MutPred
0.79
Gain of methylation at G20 (P = 0.0168)
MVP
0.94
MPC
1.4
ClinPred
0.95
D
GERP RS
3.6
PromoterAI
0.13
Neutral
Varity_R
0.63
gMVP
0.65
Mutation Taster
=35/65
disease causing

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

Other links and lift over

dbSNP: rs1428837527; hg19: chr10-105037026; API