4-53444114-T-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_030917.4(FIP1L1):​c.1285+11T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.627 in 1,550,066 control chromosomes in the GnomAD database, including 312,414 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.56 ( 25640 hom., cov: 32)
Exomes 𝑓: 0.63 ( 286774 hom. )

Consequence

FIP1L1
NM_030917.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.05
Variant links:
Genes affected
FIP1L1 (HGNC:19124): (factor interacting with PAPOLA and CPSF1) This gene encodes a subunit of the CPSF (cleavage and polyadenylation specificity factor) complex that polyadenylates the 3' end of mRNA precursors. This gene, the homolog of yeast Fip1 (factor interacting with PAP), binds to U-rich sequences of pre-mRNA and stimulates poly(A) polymerase activity. Its N-terminus contains a PAP-binding site and its C-terminus an RNA-binding domain. An interstitial chromosomal deletion on 4q12 creates an in-frame fusion of human genes FIP1L1 and PDGFRA (platelet-derived growth factor receptor, alpha). The FIP1L1-PDGFRA fusion gene encodes a constitutively activated tyrosine kinase that joins the first 233 amino acids of FIP1L1 to the last 523 amino acids of PDGFRA. This gene fusion and chromosomal deletion is the cause of some forms of idiopathic hypereosinophilic syndrome (HES). This syndrome, recently reclassified as chronic eosinophilic leukemia (CEL), is responsive to treatment with tyrosine kinase inhibitors. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Oct 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 4-53444114-T-G is Benign according to our data. Variant chr4-53444114-T-G is described in ClinVar as [Benign]. Clinvar id is 178775.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.663 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FIP1L1NM_030917.4 linkuse as main transcriptc.1285+11T>G intron_variant ENST00000337488.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FIP1L1ENST00000337488.11 linkuse as main transcriptc.1285+11T>G intron_variant 1 NM_030917.4 P4Q6UN15-1

Frequencies

GnomAD3 genomes
AF:
0.562
AC:
85447
AN:
151932
Hom.:
25640
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.346
Gnomad AMI
AF:
0.724
Gnomad AMR
AF:
0.635
Gnomad ASJ
AF:
0.688
Gnomad EAS
AF:
0.448
Gnomad SAS
AF:
0.431
Gnomad FIN
AF:
0.684
Gnomad MID
AF:
0.566
Gnomad NFE
AF:
0.668
Gnomad OTH
AF:
0.585
GnomAD3 exomes
AF:
0.598
AC:
149723
AN:
250550
Hom.:
46523
AF XY:
0.598
AC XY:
81025
AN XY:
135434
show subpopulations
Gnomad AFR exome
AF:
0.343
Gnomad AMR exome
AF:
0.609
Gnomad ASJ exome
AF:
0.700
Gnomad EAS exome
AF:
0.439
Gnomad SAS exome
AF:
0.434
Gnomad FIN exome
AF:
0.677
Gnomad NFE exome
AF:
0.674
Gnomad OTH exome
AF:
0.634
GnomAD4 exome
AF:
0.634
AC:
886786
AN:
1398016
Hom.:
286774
Cov.:
23
AF XY:
0.630
AC XY:
440836
AN XY:
699252
show subpopulations
Gnomad4 AFR exome
AF:
0.328
Gnomad4 AMR exome
AF:
0.610
Gnomad4 ASJ exome
AF:
0.700
Gnomad4 EAS exome
AF:
0.468
Gnomad4 SAS exome
AF:
0.431
Gnomad4 FIN exome
AF:
0.676
Gnomad4 NFE exome
AF:
0.665
Gnomad4 OTH exome
AF:
0.611
GnomAD4 genome
AF:
0.562
AC:
85482
AN:
152050
Hom.:
25640
Cov.:
32
AF XY:
0.562
AC XY:
41759
AN XY:
74292
show subpopulations
Gnomad4 AFR
AF:
0.346
Gnomad4 AMR
AF:
0.635
Gnomad4 ASJ
AF:
0.688
Gnomad4 EAS
AF:
0.448
Gnomad4 SAS
AF:
0.430
Gnomad4 FIN
AF:
0.684
Gnomad4 NFE
AF:
0.668
Gnomad4 OTH
AF:
0.581
Alfa
AF:
0.625
Hom.:
5699
Bravo
AF:
0.553
Asia WGS
AF:
0.436
AC:
1519
AN:
3470

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineFeb 21, 20131285+11T>G in intron 15 of FIP1L1: This variant is not expected to have clinical significance because it is not located within the conserved splice consensus se quence. It has been identified in 35.8% (1576/4406) of African American chromoso mes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs .washington.edu/EVS; dbSNP rs11723755). -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.19
DANN
Benign
0.59
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs11723755; hg19: chr4-54310281; COSMIC: COSV60998690; COSMIC: COSV60998690; API