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Synonyms: FNR, FNR-[4Fe-4S]2+ reduced, FNR-[2Fe-2S]2+ oxidized |
Summary:
FNR is the primary transcriptional regulator that mediates the transition from aerobic to anaerobic growth through the regulation of hundreds of genes. Generally, this protein activates genes involved in anaerobic metabolism and represses genes involved in aerobic metabolism [4, 99, 108]. FNR also regulates the transcription of many genes with other functions, such as acid resistance, chemotaxis, cell structure, and molecular biosynthesis, among others [4, 99]. The cellular concentration of FNR is similar under both anaerobic and aerobic growth [109], but its activity is regulated directly by oxygen. A binding signature from FNR was observed only in low oxygen conditions [108]. Under anaerobiosis, FNR acquires a [4Fe-4S] cluster that causes a conformational change and dimerization of the protein that causes it to become activated [110]. Read more > |
Transcription factor | ![]() ![]() |
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TF conformation(s): |
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Evolutionary Family: | CRP | ||||||||||||||||||||||||||||
TFBs length: | 14 | ||||||||||||||||||||||||||||
TFBs symmetry: | inverted-repeat | ||||||||||||||||||||||||||||
Sensing class: | Using internal synthesized signals | ||||||||||||||||||||||||||||
Connectivity class: | Global Regulator | ||||||||||||||||||||||||||||
Gene name: | fnr | ||||||||||||||||||||||||||||
Genome position: | 1398774-1399526 | ||||||||||||||||||||||||||||
Length: | 753 bp / 250 aa | ||||||||||||||||||||||||||||
Operon name: | fnr | ||||||||||||||||||||||||||||
TU(s) encoding the TF: |
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Transcription factor regulation |
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Functional conformation | Function | Object name | Object type | Distance to first Gene | Sequence | LeftPos | RightPos | Center Position | Growth Condition | Evidence | Confidence level (C: Confirmed, S: Strong, W: Weak) | References | |
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FNR | activator | narG | Gene | nd |
aattatatagAGTAAAATATTTGATTatcctttgcg
|
1279472 | 1279487 | 1279479.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | arcA | Gene | nd |
aattgtagcaCGTTAACAGTTTGATGaaatcatcgt
|
4640612 | 4640627 | 4640619.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | aroP | Gene | nd |
ggatttttatAGTTTAATAATCGTTAaaaaactcct
|
121869 | 121884 | 121876.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | aroP | Gene | nd |
atttgtgcatAGTTACAACTTTGAAAcgttatatat
|
121923 | 121938 | 121930.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | yffS | Gene | nd |
attgcgaataGCAACAACTAAACAACcaatacaccc
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2564382 | 2564397 | 2564389.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | focA | Gene | nd |
taaccttataATTACAATTATTTTATtaatgcaaat
|
954762 | 954777 | 954769.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | fnr | Gene | nd |
aaatatatgtCTATCTATTTGAAAACccttaagttg
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1399641 | 1399656 | 1399648.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | adhE | Gene | nd |
tatagctaacAGTTAATAAATTGTAGtatgatttgg
|
1298411 | 1298426 | 1298418.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | metV | Gene | nd |
ccgtgatcggGGTAAAAAAAAGGTTGcatgaaaacg
|
2947333 | 2947348 | 2947340.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | mltA | Gene | nd |
ccgtgatcggGGTAAAAAAAAGGTTGcatgaaaacg
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2947333 | 2947348 | 2947340.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | ydfO | Gene | nd |
ctgcatcaacTTAACGTAAAAACAACttcagacaat
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1636697 | 1636712 | 1636704.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | bidA | Gene | nd |
tggtagaacaGTTAAAAAATGTTAACcctgcaacag
|
1667333 | 1667348 | 1667340.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | aroP | Gene | nd |
tccgtttgttGTATTAATTTGTTTACatcaaagaag
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121623 | 121638 | 121630.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | yfcZ | Gene | nd |
atcatagtctTAACCATTTTTTTACAtttagccaag
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2460521 | 2460536 | 2460528.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | aroP | Gene | nd |
atggacataaGGTGAATACTTTGTTActttagcgtc
|
122008 | 122023 | 122015.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | focA | Gene | nd |
atcctccgctAAAACAGTTAATTAAAagggagcatc
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954671 | 954686 | 954678.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | arcA | Gene | nd |
ctagttgcatCATACAACTAATAAACgtggtgaatc
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4640689 | 4640704 | 4640696.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | thrA | Gene | nd |
gccgtgagtaAATTAAAATTTTATTGacttaggtca
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98 | 113 | 105.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | ung | Gene | nd |
gcggccaattGGTAAAACCATTGTTGcttgagtgta
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2716503 | 2716518 | 2716510.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | fdnG | Gene | nd |
gctgaattttATAGCATTTTTTTAACtggcctgtca
|
1547216 | 1547231 | 1547223.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | katG | Gene | nd |
ggttcgacctGGTTTATAAATAGTGTggcttttgtg
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4133498 | 4133513 | 4133505.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | ortT | Gene | nd |
gtcattgcccATATGAACGAATTATTaatcgccctg
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1517712 | 1517727 | 1517719.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | yffS | Gene | nd |
gttgttgctgATAACATCCTGGTAAAataccatttc
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2564236 | 2564251 | 2564243.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | focA | Gene | nd |
ttaccgatatTTAACCTTATAATTACaattatttta
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954751 | 954766 | 954758.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | narK | Gene | nd |
taaagttatcTTATCGTTTGATTTacatcaaatt
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1277877 | 1277890 | 1277883.5 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ], [EXP-IDA-BINDING-OF-CELLULAR-EXTRACTS] | S | [65] | |
FNR | activator | focA | Gene | nd |
ttaaatacaaATTACCGATATTTAACcttataatta
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954740 | 954755 | 954747.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | grcA | Gene | nd |
gcggccaattGGTAAAACCATTGTTGcttgagtgta
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2716503 | 2716518 | 2716510.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | katG | Gene | nd |
tcacacagtgATCACAAATTTTAAACagagcacaaa
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4133538 | 4133553 | 4133545.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | bidA | Gene | nd |
ctggcccaaaTTGAGATAGCGCAAattttggtag
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1667305 | 1667318 | 1667311.5 | nd | [EXP-IEP-MICROARRAY], [EXP-CHIP-SEQ], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] | W | [106] | |
FNR | activator | garD | Gene | nd |
tgagaccaggTCCTCATTTTAATAACccctggctgg
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3275243 | 3275258 | 3275250.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | pykA | Gene | nd |
tggttgtttcAGTCAACGGAGTATTAcatgtccaga
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1937632 | 1937647 | 1937639.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | activator | focA | Gene | nd |
gcaaatacggAGTAAATATTTGATTAtccaaataaa
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954593 | 954608 | 954600.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | yibN | Gene | nd |
ttgagtatgaGGTTGTCGCAATGTTGgtttctaaaa
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3785250 | 3785265 | 3785257.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | activator | scpA-argK-scpBC | Transcription-Unit | nd | nd | nd | nd | nd | [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS] | W | [4] | ||
FNR | activator | ydfZ | Transcription-Unit | nd | nd | nd | nd | nd | [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] | nd | [107] | ||
FNR | repressor | msrB | Gene | nd |
taagttgctgAATCGTTTTTTCAACCgttgatttct
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1862006 | 1862021 | 1862013.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | repressor | cydA | Gene | nd |
agccttataaCTCACACATTTTAAACataaatgtca
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771040 | 771055 | 771047.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | repressor | msrB | Gene | nd |
aattttacagGCAACCTTTTATTCACtaacaaatag
|
1862733 | 1862748 | 1862740.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | repressor | cydA | Gene | nd |
gattttgcggCGTAATATATACGTGGgatcaatttg
|
771272 | 771287 | 771279.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP], [EXP-CHIP-SEQ] | S | [65] | |
FNR | repressor | msrB | Gene | nd |
gtgactgattCTAACAAAACATTAACaccaactggc
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1862475 | 1862490 | 1862482.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | repressor | cydA | Gene | nd |
tcacacatttTAAACATAAATGTCACtaaagttacc
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771051 | 771066 | 771058.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | repressor | cydA | Gene | nd |
tgagtttttaTTAACATGTTTGCAACctttctttac
|
771306 | 771321 | 771313.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | repressor | cydA | Gene | nd |
tgtcactaaaGTTACCTTATTGAAACatgattaaca
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771071 | 771086 | 771078.0 | nd | [EXP-IEP-MICROARRAY], [COMP-AINF-PATTERN-DISCOVERY], [EXP-CHIP-CHIP] | S | [65] | |
FNR | repressor | gapC_1C_2 | Transcription-Unit | nd | nd | nd | nd | nd | [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS] | W | [4] | ||
FNR | repressor | ycaC | Transcription-Unit | nd | nd | nd | nd | nd | [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS] | W | [7] |
Alignment and PSSM for FNR TFBSs | ![]() |
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Aligned TFBS of FNR |
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Sequence | |
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TTGATGTAAATCAA | |
TTGATGTTAATCAA | |
TTGATTTAAATCAA | |
TTGATATTTATCAA | |
TTGATATATATCAA | |
TTGATGTAGCTCAA | |
TTGATATAGATCAT | |
TTGATTTAAATCAC | |
TTGATGTGGCTCAA | |
TTGATAACGATCAA | |
TTGATAACGATCAA | |
TTGATGTAAAACAA | |
TTGATTTGGATCAC | |
TTGATGTATCTCAA | |
TTGATAGGAATCAA | |
TTGACATATATCAA | |
TTGATATTTATCAT | |
TTGATATTTATCAT | |
TTGATTTAGCGCAA | |
TTGATGTTAATTAA | |
TTGATTTCGCGCAA | |
TTGATCTTAATTAA | |
TTGATATGGATTAA | |
TTGACTTCGCTCAA | |
TTGACGTTAAACAA | |
TTGTTCTCGATCAA | |
TTGATGATATTCAA | |
TTGATCTGGATTAA | |
TTGATTGAAATCAT | |
TTGATATACATCAT | |
TTGATTTAGATCGC | |
TTGATGCAAAGCAC | |
TTGACAAATATCAA | |
TTGATCTTACGCAT | |
TTGATACCGAACAA | |
TTGATTTCGCGCAT | |
TTGATTTATTTCAC | |
TTGTCTTTAATCAA | |
TTGATTTCTCACAA | |
TTGACAAAAATCAG | |
TTGATGGTAAGGAA | |
TTGACCTGTATCAG | |
TTAATATTTAGCAA | |
TTGACCTACCTCAA | |
TTGATATATAACTA | |
TTGACTTTAGTCAA | |
TTGATGACGACCAT | |
TTGATGCTAATCCT | |
TTAATAGTAAGCAA | |
TTGATCCAGAACAG | |
TTAATTTTGATTAA | |
GTGATACCAATCAC | |
TTGATCTACATCTC | |
TTAACCTGGCTCAA | |
TTGACAGTTAGCAT | |
TTGATAACGAGCGG | |
TTGTTAAGATTCAA | |
TTGTTTTATTTCAC | |
TTGATAACAACCCA | |
TGGATGTTAAACAA | |
TTGATGCGGAACGC | |
TTAACGTTCAGCAA | |
CTGATAATAAGCAA | |
GTAATCTGGATCAC | |
TTGATCTGGTTTGC | |
TTGATCTCACCCGG | |
GAGATGTAAAGCAA | |
TTGTTGATATTTAA | |
TTGTTATCTATGTA | |
TTGACAGTGAGGCA | |
TTGATGTGGTTTTT | |
TTGATTTTATTTTG | |
TTGGCAATTATCAC | |
GTGATTTCATGCGT | |
TTGATCGAACAGCA | |
TTCATACAAAACAG | |
TTGATAATCATTTT | |
TTGATCCTGCTACA | |
TTAATTGCAATGGT | |
GTGTTTTCATGGAA | |
TTGATTGGTGTGAG | |
TTGACGAGATCGAT | |
TTCTTATAAATGCA | |
TTAGTCAAAATGAT | |
TAAATTTATTTGAA | |
TTGATGACATAAGC | |
GTGACGATACATTC | |
TTATCTTATCGTTT |
Position weight matrix (PWM). FNR matrix-quality result |
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A 0 2 10 77 0 29 17 29 38 57 12 2 66 49 C 1 0 2 0 17 15 8 18 5 16 4 63 6 14 G 6 1 76 2 0 22 9 14 26 2 17 11 8 8 T 81 85 0 9 71 22 54 27 19 13 55 12 8 17 |
Consensus |
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; consensus.strict TTGAtgtaaatCaa ; consensus.strict.rc TTGATTTACATCAA ; consensus.IUPAC TTGAtrtwratCaa ; consensus.IUPAC.rc TTGATYWAYATCAA ; consensus.regexp TTGAt[ag]t[at][ag]atCaa ; consensus.regexp.rc TTGAT[CT][AT]A[CT]ATCAA |
Evolutionary conservation of regulatory elements | ![]() |
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Reference(s) |
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