rs9282731

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_004970.3(IGFALS):​c.1642C>T​(p.Arg548Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0186 in 1,583,154 control chromosomes in the GnomAD database, including 2,959 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R548Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.076 ( 1372 hom., cov: 33)
Exomes 𝑓: 0.012 ( 1587 hom. )

Consequence

IGFALS
NM_004970.3 missense

Scores

1
2
14

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.174

Publications

14 publications found
Variant links:
Genes affected
IGFALS (HGNC:5468): (insulin like growth factor binding protein acid labile subunit) The protein encoded by this gene is a serum protein that binds insulin-like growth factors, increasing their half-life and their vascular localization. Production of the encoded protein, which contains twenty leucine-rich repeats, is stimulated by growth hormone. Defects in this gene are a cause of acid-labile subunit deficiency, which maifests itself in a delayed and slow puberty. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]
SPSB3 (HGNC:30629): (splA/ryanodine receptor domain and SOCS box containing 3) Predicted to be involved in proteasome-mediated ubiquitin-dependent protein catabolic process. Predicted to be located in cytosol. Predicted to be part of SCF ubiquitin ligase complex. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.00459978).
BP6
Variant 16-1790776-G-A is Benign according to our data. Variant chr16-1790776-G-A is described in ClinVar as Benign. ClinVar VariationId is 318235.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.251 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004970.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IGFALS
NM_004970.3
MANE Select
c.1642C>Tp.Arg548Trp
missense
Exon 2 of 2NP_004961.1
IGFALS
NM_001146006.2
c.1756C>Tp.Arg586Trp
missense
Exon 2 of 2NP_001139478.1
IGFALS
NR_027389.1
n.1696C>T
non_coding_transcript_exon
Exon 2 of 2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IGFALS
ENST00000215539.4
TSL:1 MANE Select
c.1642C>Tp.Arg548Trp
missense
Exon 2 of 2ENSP00000215539.3
IGFALS
ENST00000415638.3
TSL:2
c.1756C>Tp.Arg586Trp
missense
Exon 2 of 2ENSP00000416683.3
IGFALS
ENST00000897144.1
c.1717C>Tp.Arg573Trp
missense
Exon 3 of 3ENSP00000567203.1

Frequencies

GnomAD3 genomes
AF:
0.0757
AC:
11511
AN:
152146
Hom.:
1368
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.255
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0266
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.00115
Gnomad SAS
AF:
0.0695
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0158
Gnomad NFE
AF:
0.00141
Gnomad OTH
AF:
0.0511
GnomAD2 exomes
AF:
0.0295
AC:
5716
AN:
194064
AF XY:
0.0280
show subpopulations
Gnomad AFR exome
AF:
0.273
Gnomad AMR exome
AF:
0.0136
Gnomad ASJ exome
AF:
0.00111
Gnomad EAS exome
AF:
0.00185
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00104
Gnomad OTH exome
AF:
0.0154
GnomAD4 exome
AF:
0.0125
AC:
17881
AN:
1430892
Hom.:
1587
Cov.:
30
AF XY:
0.0136
AC XY:
9649
AN XY:
709394
show subpopulations
African (AFR)
AF:
0.268
AC:
8773
AN:
32770
American (AMR)
AF:
0.0152
AC:
599
AN:
39512
Ashkenazi Jewish (ASJ)
AF:
0.00102
AC:
26
AN:
25542
East Asian (EAS)
AF:
0.000928
AC:
35
AN:
37722
South Asian (SAS)
AF:
0.0745
AC:
6128
AN:
82286
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49786
Middle Eastern (MID)
AF:
0.0168
AC:
96
AN:
5714
European-Non Finnish (NFE)
AF:
0.000716
AC:
786
AN:
1098320
Other (OTH)
AF:
0.0243
AC:
1438
AN:
59240
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
1096
2192
3289
4385
5481
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
338
676
1014
1352
1690
<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:
0.0758
AC:
11548
AN:
152262
Hom.:
1372
Cov.:
33
AF XY:
0.0742
AC XY:
5527
AN XY:
74462
show subpopulations
African (AFR)
AF:
0.255
AC:
10582
AN:
41496
American (AMR)
AF:
0.0266
AC:
407
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00144
AC:
5
AN:
3470
East Asian (EAS)
AF:
0.00116
AC:
6
AN:
5184
South Asian (SAS)
AF:
0.0702
AC:
339
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.0170
AC:
5
AN:
294
European-Non Finnish (NFE)
AF:
0.00141
AC:
96
AN:
68024
Other (OTH)
AF:
0.0510
AC:
108
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
463
926
1388
1851
2314
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
124
248
372
496
620
<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:
0.0161
Hom.:
509
Bravo
AF:
0.0844
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.238
AC:
1035
ESP6500EA
AF:
0.00164
AC:
14
ExAC
AF:
0.0311
AC:
3685
Asia WGS
AF:
0.0610
AC:
211
AN:
3478

ClinVar

ClinVar submissions as Germline
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
IGFALS-related disorder (1)
-
-
1
not provided (1)
-
-
1
Short stature due to primary acid-labile subunit deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.68
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
1.9
DANN
Benign
0.93
DEOGEN2
Uncertain
0.54
D
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.26
N
LIST_S2
Benign
0.78
T
MetaRNN
Benign
0.0046
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.5
L
PhyloP100
-0.17
PrimateAI
Benign
0.41
T
PROVEAN
Uncertain
-2.8
D
REVEL
Benign
0.051
Sift
Benign
0.10
T
Sift4G
Pathogenic
0.0
D
Polyphen
0.40
B
Vest4
0.16
MPC
0.053
ClinPred
0.035
T
GERP RS
-2.2
Varity_R
0.081
gMVP
0.80
Mutation Taster
=92/8
polymorphism (auto)

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: rs9282731; hg19: chr16-1840777; COSMIC: COSV51906865; COSMIC: COSV51906865; API