(Q36491274)

14 August 2017

EENdb: a database and knowledge base of ZFNs and TALENs for endonuclease engineering (English)

1 reference

14 August 2017

0 references

1 reference

An Xiao

1

1 reference

14 August 2017

Yingdan Wu

2

1 reference

14 August 2017

Zhipeng Yang

3

1 reference

14 August 2017

Yingying Hu

4

1 reference

14 August 2017

Weiye Wang

5

1 reference

14 August 2017

Yutian Zhang

6

1 reference

14 August 2017

Lei Kong

7

1 reference

14 August 2017

Ge Gao

8

1 reference

14 August 2017

Zuoyan Zhu

9

1 reference

14 August 2017

Shuo Lin

10

1 reference

14 August 2017

Bo Zhang

11

1 reference

14 August 2017

language of work or name

English

0 references

publication date

29 November 2012

1 reference

14 August 2017

Nucleic Acids Research

1 reference

14 August 2017

41

1 reference

14 August 2017

Database issue

1 reference

14 August 2017

D415-22

1 reference

Creative Commons Attribution-NonCommercial 3.0 Unported

14 August 2017

start time

4 October 2016

1 reference

April 2022 Public Data File from Crossref

copyright status

copyrighted

0 references

cites work

Reverse genetic approaches in zebrafish

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Comprehensive interrogation of natural TALE DNA-binding modules and transcriptional repressor domains

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Targeted gene knockout by direct delivery of zinc-finger nuclease proteins

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Iterative capped assembly: rapid and scalable synthesis of repeat-module DNA such as TAL effectors from individual monomers

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Gene, stem cell, and future therapies for orphan diseases

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Genome editing with CompoZr custom zinc finger nucleases (ZFNs).

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Cytotoxic effects and specific gene expression alterations induced by I-125-labeled triplex-forming oligonucleotides.

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

TAL Effector-Nucleotide Targeter (TALE-NT) 2.0: tools for TAL effector design and target prediction

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Engineering domain fusion chimeras from I-OnuI family LAGLIDADG homing endonucleases

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Highly efficient generation of heritable zebrafish gene mutations using homo- and heterodimeric TALENs

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Gene repair of an Usher syndrome causing mutation by zinc-finger nuclease mediated homologous recombination.

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Improved somatic mutagenesis in zebrafish using transcription activator-like effector nucleases (TALENs).

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

LAHEDES: the LAGLIDADG homing endonuclease database and engineering server

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Monomeric site-specific nucleases for genome editing

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

An optimized two-finger archive for ZFN-mediated gene targeting

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Regulation of transcription through light-activation and light-deactivation of triplex-forming oligonucleotides in mammalian cells

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Precision genome engineering with programmable DNA-nicking enzymes

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

FLASH assembly of TALENs for high-throughput genome editing

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Targeted gene addition to a predetermined site in the human genome using a ZFN-based nicking enzyme

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Engineered zinc finger nickases induce homology-directed repair with reduced mutagenic effects

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

A transcription activator-like effector toolbox for genome engineering

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Zinc-finger nucleases: how to play two good hands

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

[Progress in zinc finger nuclease engineering for targeted genome modification].

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Surrogate reporters for enrichment of cells with nuclease-induced mutations

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Creating highly specific nucleases by fusion of active restriction endonucleases and catalytically inactive homing endonucleases.

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Evaluation and application of modularly assembled zinc-finger nucleases in zebrafish

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Genome Engineering With Zinc-Finger Nucleases

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Revealing off-target cleavage specificities of zinc-finger nucleases by in vitro selection

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

An unbiased genome-wide analysis of zinc-finger nuclease specificity

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Targeted genome editing across species using ZFNs and TALENs

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

p53 Gene repair with zinc finger nucleases optimised by yeast 1-hybrid and validated by Solexa sequencing

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Transcriptional activators of human genes with programmable DNA-specificity

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Assembly of designer TAL effectors by Golden Gate cloning

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Efficient design and assembly of custom TALEN and other TAL effector-based constructs for DNA targeting

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Modularly assembled designer TAL effector nucleases for targeted gene knockout and gene replacement in eukaryotes

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Assembly of custom TALE-type DNA binding domains by modular cloning

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Comprehensive computational design of mCreI homing endonuclease cleavage specificity for genome engineering

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Efficient construction of sequence-specific TAL effectors for modulating mammalian transcription

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

TAL effector-DNA specificity

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Selection-free zinc-finger-nuclease engineering by context-dependent assembly (CoDA)

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Enhancing zinc-finger-nuclease activity with improved obligate heterodimeric architectures

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Zinc finger protein-dependent and -independent contributions to the in vivo off-target activity of zinc finger nucleases

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

TAL nucleases (TALNs): hybrid proteins composed of TAL effectors and FokI DNA-cleavage domain

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Targeting DNA double-strand breaks with TAL effector nucleases

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

The discovery of zinc fingers and their development for practical applications in gene regulation and genome manipulation

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Directed evolution of an enhanced and highly efficient FokI cleavage domain for zinc finger nucleases

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

ZiFiT (Zinc Finger Targeter): an updated zinc finger engineering tool

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Breaking the code of DNA binding specificity of TAL-type III effectors

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

A simple cipher governs DNA recognition by TAL effectors

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

ZifBASE: a database of zinc finger proteins and associated resources

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Targeted manipulation of mammalian genomes using designed zinc finger nucleases

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Restricted spacer tolerance of a zinc finger nuclease with a six amino acid linker

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Expanding or restricting the target site repertoire of zinc-finger nucleases: the inter-domain linker as a major determinant of target site selectivity

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Zinc Finger Database (ZiFDB): a repository for information on C2H2 zinc fingers and engineered zinc-finger arrays

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Rapid "open-source" engineering of customized zinc-finger nucleases for highly efficient gene modification

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Development of a single-chain, quasi-dimeric zinc-finger nuclease for the selective degradation of mutated human mitochondrial DNA.

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Targeted gene inactivation in zebrafish using engineered zinc-finger nucleases

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Structure-based redesign of the dimerization interface reduces the toxicity of zinc-finger nucleases

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

An improved zinc-finger nuclease architecture for highly specific genome editing

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Standardized reagents and protocols for engineering zinc finger nucleases by modular assembly.

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Stimulation of homologous recombination through targeted cleavage by chimeric nucleases

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Requirements for double-strand cleavage by chimeric restriction enzymes with zinc finger DNA-recognition domains

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Toward controlling gene expression at will: specific regulation of the erbB-2/HER-2 promoter by using polydactyl zinc finger proteins constructed from modular building blocks

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Comprehensive DNA recognition through concerted interactions from adjacent zinc fingers

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Synergy between adjacent zinc fingers in sequence-specific DNA recognition

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Hybrid restriction enzymes: zinc finger fusions to Fok I cleavage domain

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Zinc Finger Domains: Hypotheses and Current Knowledge

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

In vivo genome editing using a high-efficiency TALEN system

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Recognition of methylated DNA by TAL effectors

30 September 2017

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Targeting duplex DNA with chimeric α,β-triplex-forming oligonucleotides

28 June 2018

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

A novel zinc-finger nuclease platform with a sequence-specific cleavage module.

28 June 2018

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Efficient double-stranded DNA cleavage by artificial zinc-finger nucleases composed of one zinc-finger protein and a single-chain FokI dimer

28 June 2018

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Rapid and highly efficient construction of TALE-based transcriptional regulators and nucleases for genome modification

28 June 2018

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Catalytic activity control of restriction endonuclease--triplex forming oligonucleotide conjugates.

21 September 2018

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Gene editing: not just for translation anymore

21 September 2018

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Assembly and in vitro functional analysis of zinc finger nuclease specific to the 3' untranslated region of chicken ovalbumin gene

21 September 2018

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Heritable gene targeting in zebrafish using customized TALENs.

21 September 2018

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Targeted gene disruption in somatic zebrafish cells using engineered TALENs

21 September 2018

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

Enhanced cleavage of double-stranded DNA by artificial zinc-finger nuclease sandwiched between two zinc-finger proteins

21 September 2018

1 reference

https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pmc&linkname=pmc_refs_pubmed&retmode=json&id=3531095

21 September 2018

1 reference

https://api.crossref.org/works/10.1093%2FNAR%2FGKS1144

Advances in antiretroviral therapy

21 January 2018

1 reference

12 December 2020

Sandwiched zinc-finger nucleases harboring a single-chain FokI dimer as a DNA-cleavage domain

1 reference

12 December 2020

Gene-editing nucleases

1 reference

12 December 2020

TAL effector RVD specificities and efficiencies

1 reference

12 December 2020

Identifiers

DOI

10.1093/NAR/GKS1144

1 reference

journals/nar/XiaoWYHWZKGZLZ13

14 August 2017

1 reference

DBLP Dataset 2021-01-02

28 January 2021

1 reference

14 August 2017

PubMed publication ID

23203870

1 reference