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GeneBe

2-216694658-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000599.4(IGFBP5):c.118C>G(p.Pro40Ala) variant causes a missense change. The variant allele was found at a frequency of 0.000000727 in 1,374,866 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 7.3e-7 ( 0 hom. )

Consequence

IGFBP5
NM_000599.4 missense

Scores

3
8
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.42
Variant links:
Genes affected
IGFBP5 (HGNC:5474): (insulin like growth factor binding protein 5) Enables insulin-like growth factor I binding activity. Involved in several processes, including cellular response to cAMP; regulation of smooth muscle cell migration; and regulation of smooth muscle cell proliferation. Part of insulin-like growth factor ternary complex. Biomarker of pulmonary fibrosis. [provided by Alliance of Genome Resources, Apr 2022]
DIRC3-AS1 (HGNC:50636): (DIRC3 antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IGFBP5NM_000599.4 linkuse as main transcriptc.118C>G p.Pro40Ala missense_variant 1/4 ENST00000233813.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IGFBP5ENST00000233813.5 linkuse as main transcriptc.118C>G p.Pro40Ala missense_variant 1/41 NM_000599.4 P1
DIRC3-AS1ENST00000695932.1 linkuse as main transcriptn.255G>C non_coding_transcript_exon_variant 1/12

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000722
AC:
1
AN:
138586
Hom.:
0
AF XY:
0.0000130
AC XY:
1
AN XY:
76724
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000163
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.27e-7
AC:
1
AN:
1374866
Hom.:
0
Cov.:
31
AF XY:
0.00000148
AC XY:
1
AN XY:
676830
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.32e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 08, 2023The c.118C>G (p.P40A) alteration is located in exon 1 (coding exon 1) of the IGFBP5 gene. This alteration results from a C to G substitution at nucleotide position 118, causing the proline (P) at amino acid position 40 to be replaced by an alanine (A). 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
0.13
BayesDel_addAF
Uncertain
0.031
T
BayesDel_noAF
Benign
-0.19
Cadd
Pathogenic
27
Dann
Uncertain
1.0
DEOGEN2
Benign
0.32
T;.
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.92
D;D
M_CAP
Benign
0.048
D
MetaRNN
Uncertain
0.65
D;D
MetaSVM
Benign
-0.74
T
MutationAssessor
Benign
1.7
L;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.65
T
PROVEAN
Pathogenic
-5.0
D;D
REVEL
Benign
0.28
Sift
Pathogenic
0.0
D;T
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.86
P;.
Vest4
0.17
MutPred
0.58
Loss of glycosylation at P40 (P = 0.0377);Loss of glycosylation at P40 (P = 0.0377);
MVP
0.51
MPC
1.6
ClinPred
1.0
D
GERP RS
4.5
Varity_R
0.76
gMVP
0.68

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1047516241; hg19: chr2-217559381; API