NM_001553.3:c.487G>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001553.3(IGFBP7):​c.487G>C​(p.Val163Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000276 in 1,613,050 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign 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. V163G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00029 ( 0 hom. )

Consequence

IGFBP7
NM_001553.3 missense

Scores

2
5
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.34

Publications

5 publications found
Variant links:
Genes affected
IGFBP7 (HGNC:5476): (insulin like growth factor binding protein 7) This gene encodes a member of the insulin-like growth factor (IGF)-binding protein (IGFBP) family. IGFBPs bind IGFs with high affinity, and regulate IGF availability in body fluids and tissues and modulate IGF binding to its receptors. This protein binds IGF-I and IGF-II with relatively low affinity, and belongs to a subfamily of low-affinity IGFBPs. It also stimulates prostacyclin production and cell adhesion. Alternatively spliced transcript variants encoding different isoforms have been described for this gene, and one variant has been associated with retinal arterial macroaneurysm (PMID:21835307). [provided by RefSeq, Dec 2011]
IGFBP7 Gene-Disease associations (from GenCC):
  • familial retinal arterial macroaneurysm
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.12075502).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001553.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IGFBP7
NM_001553.3
MANE Select
c.487G>Cp.Val163Leu
missense
Exon 2 of 5NP_001544.1Q16270-1
IGFBP7
NM_001253835.2
c.487G>Cp.Val163Leu
missense
Exon 2 of 4NP_001240764.1Q16270-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IGFBP7
ENST00000295666.6
TSL:1 MANE Select
c.487G>Cp.Val163Leu
missense
Exon 2 of 5ENSP00000295666.4Q16270-1
IGFBP7
ENST00000896424.1
c.595G>Cp.Val199Leu
missense
Exon 4 of 7ENSP00000566483.1
IGFBP7
ENST00000947223.1
c.562G>Cp.Val188Leu
missense
Exon 3 of 6ENSP00000617282.1

Frequencies

GnomAD3 genomes
AF:
0.000145
AC:
22
AN:
152220
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000275
AC:
69
AN:
251176
AF XY:
0.000273
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.00179
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.000387
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000290
AC:
424
AN:
1460830
Hom.:
0
Cov.:
31
AF XY:
0.000299
AC XY:
217
AN XY:
726820
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33462
American (AMR)
AF:
0.000157
AC:
7
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00184
AC:
48
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86210
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000305
AC:
339
AN:
1111062
Other (OTH)
AF:
0.000447
AC:
27
AN:
60362
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
20
40
60
80
100
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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
GnomAD4 genome
AF:
0.000145
AC:
22
AN:
152220
Hom.:
0
Cov.:
33
AF XY:
0.000108
AC XY:
8
AN XY:
74360
show subpopulations
African (AFR)
AF:
0.0000724
AC:
3
AN:
41460
American (AMR)
AF:
0.000131
AC:
2
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00115
AC:
4
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000191
AC:
13
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.516
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.000327
Hom.:
0
Bravo
AF:
0.000185
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.000206
AC:
25
EpiCase
AF:
0.000218
EpiControl
AF:
0.000178

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.50
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.15
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.025
T
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.61
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.86
D
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.12
T
MetaSVM
Benign
-0.51
T
MutationAssessor
Benign
0.40
N
PhyloP100
7.3
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-1.5
N
REVEL
Benign
0.19
Sift
Benign
0.15
T
Sift4G
Uncertain
0.024
D
Polyphen
1.0
D
Vest4
0.59
MutPred
0.47
Gain of glycosylation at T164 (P = 0.0522)
MVP
0.67
MPC
1.2
ClinPred
0.18
T
GERP RS
5.8
Varity_R
0.23
gMVP
0.61
Mutation Taster
=57/43
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: rs145854926; hg19: chr4-57907088; API