FEN1

flap structure-specific endonuclease 1

Basic information

Region (hg38): 11:61792911-61797238

Previous symbols: [ "RAD2" ]

Links

ENSG00000168496NCBI:2237OMIM:600393HGNC:3650Uniprot:P39748AlphaFoldGenCCjaxSfariGnomADPubmedClinVar

Phenotypes

GenCC

Source: genCC

No genCC data.

ClinVar

This is a list of variants' phenotypes submitted to ClinVar and linked to the FEN1 gene.

Variants pathogenicity by type

Statistics on ClinVar variants can assist in determining whether a specific variant type in the FEN1 gene is commonly pathogenic or not.

In the table, we include only reliable ClinVar variants with their consequences to MANE Select, Mane Plus Clinical transcripts, or transcripts with TSL equals 1. Click the count to view the source variants.

Warning: slight differences between displayed counts and the number of variants in ClinVar may occur, primarily due to (1) the application of a different transcript and/or consequence by our variant effect predictor or (2) differences in clinical significance: we classify Benign/Likely benign variants as Likely benign and Pathogenic/Likely pathogenic variants as Likely pathogenic.

Variant type Pathogenic Likely pathogenic VUS Likely benign Benign Sum
synonymous
0
missense
13
clinvar
13
nonsense
0
start loss
0
frameshift
0
inframe indel
0
splice donor/acceptor (+/-2bp)
0
splice region
0
non coding
0
Total 0 0 13 0 0

Variants in FEN1

This is a list of pathogenic ClinVar variants found in the FEN1 region.

You can filter this list by clicking the number of variants in the Variants pathogenicity by type table.

Position Type Phenotype Significance ClinVar
11-61795501-G-A not specified Uncertain significance (Oct 05, 2022)2375073
11-61795593-G-A not specified Uncertain significance (Feb 16, 2023)2486202
11-61795654-C-T not specified Uncertain significance (Mar 17, 2023)2526221
11-61795672-G-A Hereditary breast ovarian cancer syndrome Uncertain significance (Aug 01, 2020)981884
11-61795747-G-A not specified Uncertain significance (Jan 24, 2024)3094378
11-61795930-T-C Uncertain significance (Apr 08, 2021)2689063
11-61796034-G-T not specified Uncertain significance (Jun 03, 2024)3278477
11-61796065-G-A Non-immune hydrops fetalis Uncertain significance (Apr 29, 2021)1252029
11-61796077-G-A not specified Uncertain significance (Mar 11, 2024)3094379
11-61796217-C-G not specified Uncertain significance (Jun 16, 2024)3278478
11-61796257-G-A not specified Uncertain significance (Apr 18, 2023)2537882
11-61796308-T-A not specified Uncertain significance (Sep 07, 2022)2311471
11-61796325-C-T not specified Uncertain significance (Mar 22, 2022)2368474
11-61796356-G-A not specified Uncertain significance (Nov 13, 2023)3094380
11-61796403-G-A not specified Uncertain significance (Feb 28, 2024)3094377
11-61796463-G-A not specified Uncertain significance (Apr 07, 2023)2534119

GnomAD

Source: gnomAD

GeneTypeBio TypeTranscript Coding Exons Length
FEN1protein_codingprotein_codingENST00000305885 14608
pLI Probability
LOF Intolerant
pRec Probability
LOF Recessive
Individuals with
no LOFs
Individuals with
Homozygous LOFs
Individuals with
Heterozygous LOFs
Defined p
0.00004770.6731257300171257470.0000676
Z-Score Observed Expected Observed/Expected Mutation Rate Total Possible in Transcript
Missense1.361692270.7450.00001392500
Missense in Polyphen3467.9840.50012670
Synonymous1.786788.30.7590.00000491766
Loss of Function0.905811.30.7097.51e-7124

LoF frequencies by population

EthnicitySum of pLOFs p
African & African-American0.00009040.0000904
Ashkenazi Jewish0.00009960.0000992
East Asian0.00005440.0000544
Finnish0.000.00
European (Non-Finnish)0.00005280.0000527
Middle Eastern0.00005440.0000544
South Asian0.0002290.000229
Other0.000.00

dbNSFP

Source: dbNSFP

Function
FUNCTION: Structure-specific nuclease with 5'-flap endonuclease and 5'-3' exonuclease activities involved in DNA replication and repair. During DNA replication, cleaves the 5'-overhanging flap structure that is generated by displacement synthesis when DNA polymerase encounters the 5'-end of a downstream Okazaki fragment. It enters the flap from the 5'-end and then tracks to cleave the flap base, leaving a nick for ligation. Also involved in the long patch base excision repair (LP-BER) pathway, by cleaving within the apurinic/apyrimidinic (AP) site-terminated flap. Acts as a genome stabilization factor that prevents flaps from equilibrating into structurs that lead to duplications and deletions. Also possesses 5'-3' exonuclease activity on nicked or gapped double- stranded DNA, and exhibits RNase H activity. Also involved in replication and repair of rDNA and in repairing mitochondrial DNA. {ECO:0000255|HAMAP-Rule:MF_03140, ECO:0000269|PubMed:10744741, ECO:0000269|PubMed:11986308, ECO:0000269|PubMed:18443037, ECO:0000269|PubMed:20729856, ECO:0000269|PubMed:7961795, ECO:0000269|PubMed:8621570}.;
Pathway
Base excision repair - Homo sapiens (human);DNA replication - Homo sapiens (human);Non-homologous end-joining - Homo sapiens (human);HDR through MMEJ (alt-NHEJ);DNA Repair;Disease;DNA Double-Strand Break Repair;HIV Life Cycle;HIV Infection;Homology Directed Repair;Infectious disease;DNA Replication;Removal of the Flap Intermediate;Processive synthesis on the lagging strand;Lagging Strand Synthesis;DNA strand elongation;Synthesis of DNA;POLB-Dependent Long Patch Base Excision Repair;S Phase;PCNA-Dependent Long Patch Base Excision Repair;Resolution of AP sites via the multiple-nucleotide patch replacement pathway;Resolution of Abasic Sites (AP sites);Base Excision Repair;Removal of the Flap Intermediate from the C-strand;Processive synthesis on the C-strand of the telomere;Telomere C-strand (Lagging Strand) Synthesis;Extension of Telomeres;Telomere Maintenance;Chromosome Maintenance;Cell Cycle;Cell Cycle, Mitotic;Early Phase of HIV Life Cycle (Consensus)

Recessive Scores

pRec
0.543

Intolerance Scores

loftool
0.701
rvis_EVS
-0.12
rvis_percentile_EVS
44.89

Haploinsufficiency Scores

pHI
0.974
hipred
Y
hipred_score
0.813
ghis
0.696

Essentials

essential_gene_CRISPR
E
essential_gene_CRISPR2
E
essential_gene_gene_trap
E
gene_indispensability_pred
E
gene_indispensability_score
0.976

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium

Mouse Genome Informatics

Gene name
Fen1
Phenotype
neoplasm; hematopoietic system phenotype; reproductive system phenotype; normal phenotype; mortality/aging (the observable characteristics related to the ability of a mammalian organism to live and age that are manifested throughout development and life span); liver/biliary system phenotype; respiratory system phenotype; embryo phenotype; renal/urinary system phenotype; immune system phenotype; digestive/alimentary phenotype; nervous system phenotype (the observable morphological and physiological characteristics of the extensive, intricate network of electochemical structures in the body that is comprised of the brain, spinal cord, nerves, ganglia and parts of the receptor organs that are manifested through development and lifespan); endocrine/exocrine gland phenotype; adipose tissue phenotype (the observable morphological and physiological characteristics of mammalian fat tissue that are manifested through development and lifespan); growth/size/body region phenotype; homeostasis/metabolism phenotype; cellular phenotype;

Zebrafish Information Network

Gene name
fen1
Affected structure
anatomical system
Phenotype tag
abnormal
Phenotype quality
quality

Gene ontology

Biological process
double-strand break repair via homologous recombination;DNA replication;base-excision repair;double-strand break repair;UV protection;telomere maintenance via semi-conservative replication;DNA replication, removal of RNA primer;positive regulation of sister chromatid cohesion;nucleic acid phosphodiester bond hydrolysis;RNA phosphodiester bond hydrolysis, endonucleolytic
Cellular component
nuclear chromosome, telomeric region;nucleus;nucleoplasm;nucleolus;mitochondrion;membrane;protein-containing complex
Molecular function
magnesium ion binding;DNA binding;damaged DNA binding;double-stranded DNA binding;endonuclease activity;RNA-DNA hybrid ribonuclease activity;exonuclease activity;protein binding;double-stranded DNA exodeoxyribonuclease activity;5'-3' exonuclease activity;5'-flap endonuclease activity;manganese ion binding;flap endonuclease activity