13-101715578-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004791.3(ITGBL1):​c.1409G>A​(p.Ser470Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000292 in 1,612,240 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

ITGBL1
NM_004791.3 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0630

Publications

0 publications found
Variant links:
Genes affected
ITGBL1 (HGNC:6164): (integrin subunit beta like 1) This gene encodes a beta integrin-related protein that is a member of the EGF-like protein family. The encoded protein contains integrin-like cysteine-rich repeats. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2012]
FGF14 (HGNC:3671): (fibroblast growth factor 14) The protein encoded by this gene is a member of the fibroblast growth factor (FGF) family. FGF family members possess broad mitogenic and cell survival activities, and are involved in a variety of biological processes, including embryonic development, cell growth, morphogenesis, tissue repair, tumor growth and invasion. A mutation in this gene is associated with autosomal dominant cerebral ataxia. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2008]
FGF14 Gene-Disease associations (from GenCC):
  • spinocerebellar ataxia 27A
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • spinocerebellar ataxia type 27
    Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
  • autosomal recessive cerebellar ataxia
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.12530145).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ITGBL1NM_004791.3 linkc.1409G>A p.Ser470Asn missense_variant Exon 11 of 11 ENST00000376180.8 NP_004782.1 O95965-1A0A024RDW7
FGF14NM_004115.4 linkc.*7253C>T 3_prime_UTR_variant Exon 5 of 5 ENST00000376143.5 NP_004106.1 Q92915-1A0A7U3JVZ8

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ITGBL1ENST00000376180.8 linkc.1409G>A p.Ser470Asn missense_variant Exon 11 of 11 1 NM_004791.3 ENSP00000365351.3 O95965-1
FGF14ENST00000376143.5 linkc.*7253C>T 3_prime_UTR_variant Exon 5 of 5 1 NM_004115.4 ENSP00000365313.4 Q92915-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152150
Hom.:
0
Cov.:
33
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000119
AC:
3
AN:
251320
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000274
AC:
40
AN:
1460090
Hom.:
0
Cov.:
30
AF XY:
0.0000344
AC XY:
25
AN XY:
726536
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33434
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26104
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39662
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86202
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000324
AC:
36
AN:
1110464
Other (OTH)
AF:
0.0000663
AC:
4
AN:
60328
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.459
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000460
AC:
7
AN:
152150
Hom.:
0
Cov.:
33
AF XY:
0.0000404
AC XY:
3
AN XY:
74340
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41426
American (AMR)
AF:
0.00
AC:
0
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.518
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jun 08, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1409G>A (p.S470N) alteration is located in exon 11 (coding exon 11) of the ITGBL1 gene. This alteration results from a G to A substitution at nucleotide position 1409, causing the serine (S) at amino acid position 470 to be replaced by an asparagine (N). 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
0.064
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
7.2
DANN
Benign
0.97
DEOGEN2
Benign
0.013
T;T;T;.;.
Eigen
Benign
-0.65
Eigen_PC
Benign
-0.41
FATHMM_MKL
Benign
0.71
D
LIST_S2
Benign
0.67
T;T;T;T;T
M_CAP
Benign
0.025
D
MetaRNN
Benign
0.13
T;T;T;T;T
MetaSVM
Benign
-0.56
T
MutationAssessor
Benign
-0.055
.;N;.;.;.
PhyloP100
0.063
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-0.57
.;N;.;N;N
REVEL
Benign
0.25
Sift
Benign
0.74
.;T;.;T;T
Sift4G
Benign
1.0
T;T;T;T;T
Polyphen
0.0
.;B;.;.;.
Vest4
0.16
MutPred
0.44
.;Gain of catalytic residue at G465 (P = 0);.;.;.;
MVP
0.47
MPC
0.19
ClinPred
0.37
T
GERP RS
2.0
Varity_R
0.048
gMVP
0.21
Mutation Taster
=87/13
polymorphism

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: rs781024661; hg19: chr13-102367928; API