pQE-81L-Kan

Bacterial lacIq vector with a kanamycin resistance marker for expressing N-terminally 6xHis-tagged proteins. For other reading frames, use pQE-80L-Kan or pQE-82L-Kan.

Sequence Author: Qiagen

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HomePlasmidsQiagen VectorspQE-81L-Kan
PaeR7I - XhoI (1) NruI (4350) BspDI - ClaI (4314) EcoNI (4094) AsiSI - PvuI (4009) XmnI (3618) AcuI (3416) AlwNI (3284) PciI (2868) BspQI - SapI (2752) NdeI (2691) BstZ17I (2641) PflFI - Tth111I (2615) PfoI (2512) FspI - FspAI (2448) PpuMI * (2431) PsiI (49) MfeI (59) lac operator EcoRI (88) RBS BseRI (115) ATG 6xHis BamHI (147) SphI (157) Eco53kI (161) SacI (163) Acc65I (165) KpnI (169) SalI (175) PstI (185) BfuAI - BspMI (188) HindIII (189) BlpI (201) NheI (309) BmtI (313) BspEI (557) PasI (793) NcoI - StyI (862) ScaI (978) KasI (1339) NarI * (1340) SfoI (1341) PluTI (1343) HpaI (1476) EcoRV (1532) BssHII (1567) PspOMI (1771) ApaI (1775) NmeAIII (1778) BstEII (1796) BclI * (1964) MluI (1978) pQE-81L-Kan 4543 bp
PaeR7I  (1)
1 site		 C T C G A G G A G C T C
PaeR7I does not recognize the sequence CTCTCGAG.
XhoI  (1)
1 site		 C T C G A G G A G C T C
NruI  (4350)
1 site		 T C G C G A A G C G C T
BspDI  (4314)
1 site		 A T C G A T T A G C T A
ClaI  (4314)
1 site		 A T C G A T T A G C T A
EcoNI  (4094)
1 site		 C C T N N N N N A G G G G A N N N N N T C C
The 1-base overhangs produced by EcoNI may be hard to ligate.
Sticky ends from different EcoNI sites may not be compatible.
AsiSI  (4009)
1 site		 G C G A T C G C C G C T A G C G
PvuI  (4009)
1 site		 C G A T C G G C T A G C
XmnI  (3618)
1 site		 G A A N N N N T T C C T T N N N N A A G
AcuI  (3416)
1 site		 C T G A A G ( N ) 14 N N G A C T T C ( N ) 14
Cleavage may be enhanced when more than one copy of the AcuI recognition sequence is present.
Sticky ends from different AcuI sites may not be compatible.
After cleavage, AcuI can remain bound to DNA and alter its electrophoretic mobility.
For full activity, add fresh S-adenosylmethionine (SAM).
AlwNI  (3284)
1 site		 C A G N N N C T G G T C N N N G A C
Sticky ends from different AlwNI sites may not be compatible.
PciI  (2868)
1 site		 A C A T G T T G T A C A
PciI is inhibited by nonionic detergents.
BspQI  (2752)
1 site		 G C T C T T C N C G A G A A G N N N N
Sticky ends from different BspQI sites may not be compatible.
SapI  (2752)
1 site		 G C T C T T C N C G A G A A G N N N N
Sticky ends from different SapI sites may not be compatible.
SapI gradually settles in solution, so a tube of SapI should be mixed before removing an aliquot.
NdeI  (2691)
1 site		 C A T A T G G T A T A C
Prolonged incubation with NdeI may lead to removal of additional nucleotides.
BstZ17I  (2641)
1 site		 G T A T A C C A T A T G
PflFI  (2615)
1 site		 G A C N N N G T C C T G N N N C A G
The 1-base overhangs produced by PflFI may be hard to ligate.
Sticky ends from different PflFI sites may not be compatible.
Tth111I  (2615)
1 site		 G A C N N N G T C C T G N N N C A G
The 1-base overhangs produced by Tth111I may be hard to ligate.
Sticky ends from different Tth111I sites may not be compatible.
PfoI  (2512)
1 site		 T C C N G G A A G G N C C T
Sticky ends from different PfoI sites may not be compatible.
FspI  (2448)
1 site		 T G C G C A A C G C G T
FspAI  (2448)
1 site		 R T G C G C A Y Y A C G C G T R
PpuMI  (2431)
1 site		 R G G W C C Y Y C C W G G R
* Blocked by Dcm methylation.
Sticky ends from different PpuMI sites may not be compatible.
PsiI  (49)
1 site		 T T A T A A A A T A T T
MfeI  (59)
1 site		 C A A T T G G T T A A C
EcoRI  (88)
1 site		 G A A T T C C T T A A G
BseRI  (115)
1 site		 G A G G A G ( N ) 8 N N C T C C T C ( N ) 8
Sticky ends from different BseRI sites may not be compatible.
BseRI quickly loses activity at 37°C.
Prolonged incubation with BseRI may lead to degradation of the DNA.
BamHI  (147)
1 site		 G G A T C C C C T A G G
After cleavage, BamHI-HF® (but not the original BamHI) can remain bound to DNA and alter its electrophoretic mobility.
SphI  (157)
1 site		 G C A T G C C G T A C G
Eco53kI  (161)
1 site		 G A G C T C C T C G A G
SacI  (163)
1 site		 G A G C T C C T C G A G
Acc65I  (165)
1 site		 G G T A C C C C A T G G
KpnI  (169)
1 site		 G G T A C C C C A T G G
SalI  (175)
1 site		 G T C G A C C A G C T G
PstI  (185)
1 site		 C T G C A G G A C G T C
BfuAI  (188)
1 site		 A C C T G C ( N ) 4 T G G A C G ( N ) 4 ( N ) 4
Efficient cleavage requires at least two copies of the BfuAI recognition sequence.
Sticky ends from different BfuAI sites may not be compatible.
BfuAI is typically used at 50°C, but is 50% active at 37°C.
BspMI  (188)
1 site		 A C C T G C ( N ) 4 T G G A C G ( N ) 4 ( N ) 4
Efficient cleavage requires at least two copies of the BspMI recognition sequence.
Sticky ends from different BspMI sites may not be compatible.
HindIII  (189)
1 site		 A A G C T T T T C G A A
BlpI  (201)
1 site		 G C T N A G C C G A N T C G
Sticky ends from different BlpI sites may not be compatible.
NheI  (309)
1 site		 G C T A G C C G A T C G
BmtI  (313)
1 site		 G C T A G C C G A T C G
BspEI  (557)
1 site		 T C C G G A A G G C C T
PasI  (793)
1 site		 C C C W G G G G G G W C C C
Sticky ends from different PasI sites may not be compatible.
NcoI  (862)
1 site		 C C A T G G G G T A C C
StyI  (862)
1 site		 C C W W G G G G W W C C
Sticky ends from different StyI sites may not be compatible.
ScaI  (978)
1 site		 A G T A C T T C A T G A
KasI  (1339)
1 site		 G G C G C C C C G C G G
NarI  (1340)
1 site		 G G C G C C C C G C G G
* Blocked by Dcm methylation.
Efficient cleavage requires at least two copies of the NarI recognition sequence.
SfoI  (1341)
1 site		 G G C G C C C C G C G G
PluTI  (1343)
1 site		 G G C G C C C C G C G G
Efficient cleavage requires at least two copies of the PluTI recognition sequence.
HpaI  (1476)
1 site		 G T T A A C C A A T T G
EcoRV  (1532)
1 site		 G A T A T C C T A T A G
EcoRV is reportedly more prone than its isoschizomer Eco32I to delete a base after cleavage.
BssHII  (1567)
1 site		 G C G C G C C G C G C G
BssHII is typically used at 50°C, but is 75% active at 37°C.
PspOMI  (1771)
1 site		 G G G C C C C C C G G G
ApaI  (1775)
1 site		 G G G C C C C C C G G G
ApaI can be used between 25°C and 37°C.
NmeAIII  (1778)
1 site		 G C C G A G ( N ) 18-19 N N C G G C T C ( N ) 18-19
Efficient cleavage requires at least two copies of the NmeAIII recognition sequence.
Sticky ends from different NmeAIII sites may not be compatible.
For full activity, add fresh S-adenosylmethionine (SAM).
BstEII  (1796)
1 site		 G G T N A C C C C A N T G G
Sticky ends from different BstEII sites may not be compatible.
BstEII is typically used at 60°C, but is 50% active at 37°C.
BclI  (1964)
1 site		 T G A T C A A C T A G T
* Blocked by Dam methylation.
BclI is typically used at 50-55°C, but is 50% active at 37°C.
MluI  (1978)
1 site		 A C G C G T T G C G C A
lacI
1251 .. 2333  =  1083 bp
360 amino acids  =  38.6 kDa
Product: lac repressor
The lac repressor binds to the lac operator to inhibit transcription in E. coli. This inhibition can be relieved by adding lactose or isopropyl-β-D-thiogalactopyranoside (IPTG).
lacI
1251 .. 2333  =  1083 bp
360 amino acids  =  38.6 kDa
Product: lac repressor
The lac repressor binds to the lac operator to inhibit transcription in E. coli. This inhibition can be relieved by adding lactose or isopropyl-β-D-thiogalactopyranoside (IPTG).
KanR
3624 .. 4439  =  816 bp
271 amino acids  =  31.0 kDa
Product: aminoglycoside phosphotransferase
confers resistance to kanamycin
KanR
3624 .. 4439  =  816 bp
271 amino acids  =  31.0 kDa
Product: aminoglycoside phosphotransferase
confers resistance to kanamycin
CmR
348 .. 1007  =  660 bp
219 amino acids  =  25.7 kDa
Product: chloramphenicol acetyltransferase
confers resistance to chloramphenicol
CmR
348 .. 1007  =  660 bp
219 amino acids  =  25.7 kDa
Product: chloramphenicol acetyltransferase
confers resistance to chloramphenicol
ori
2929 .. 3517  =  589 bp
high-copy-number ColE1/pMB1/pBR322/pUC origin of replication
ori
2929 .. 3517  =  589 bp
high-copy-number ColE1/pMB1/pBR322/pUC origin of replication
lambda t0 terminator
210 .. 304  =  95 bp
transcription terminator from phage lambda
lambda t0 terminator
210 .. 304  =  95 bp
transcription terminator from phage lambda
rrnB T1 terminator
1072 .. 1158  =  87 bp
transcription terminator T1 from the E. coli rrnB gene
rrnB T1 terminator
1072 .. 1158  =  87 bp
transcription terminator T1 from the E. coli rrnB gene
lacIq promoter
2334 .. 2411  =  78 bp
In the lacIq allele, a single base change in the promoter boosts expression of the lacI gene about 10-fold.
lacIq promoter
2334 .. 2411  =  78 bp
In the lacIq allele, a single base change in the promoter boosts expression of the lacI gene about 10-fold.
MCS
147 .. 194  =  48 bp
multiple cloning site
MCS
147 .. 194  =  48 bp
multiple cloning site
T5 promoter
10 .. 54  =  45 bp
4 segments
   Segment 1:  
   10 .. 24  =  15 bp
bacteriophage T5 promoter for E. coli RNA polymerase, with embedded lac operator
T5 promoter
10 .. 54  =  45 bp
4 segments
   Segment 2:  -35  
   25 .. 30  =  6 bp
bacteriophage T5 promoter for E. coli RNA polymerase, with embedded lac operator
T5 promoter
10 .. 54  =  45 bp
4 segments
   Segment 3:  
   31 .. 47  =  17 bp
bacteriophage T5 promoter for E. coli RNA polymerase, with embedded lac operator
T5 promoter
10 .. 54  =  45 bp
4 segments
   Segment 4:  -10  
   48 .. 54  =  7 bp
bacteriophage T5 promoter for E. coli RNA polymerase, with embedded lac operator
T5 promoter
10 .. 54  =  45 bp
4 segments
bacteriophage T5 promoter for E. coli RNA polymerase, with embedded lac operator
ATG
115 .. 117  =  3 bp
1 amino acid  =  149.2 Da
Product: start codon
ATG
115 .. 117  =  3 bp
1 amino acid  =  149.2 Da
Product: start codon
6xHis
127 .. 144  =  18 bp
6 amino acids  =  840.9 Da
Product: 6xHis affinity tag
6xHis
127 .. 144  =  18 bp
6 amino acids  =  840.9 Da
Product: 6xHis affinity tag
lac operator
62 .. 78  =  17 bp
The lac repressor binds to the lac operator to inhibit transcription in E. coli. This inhibition can be relieved by adding lactose or isopropyl-β-D-thiogalactopyranoside (IPTG).
lac operator
62 .. 78  =  17 bp
The lac repressor binds to the lac operator to inhibit transcription in E. coli. This inhibition can be relieved by adding lactose or isopropyl-β-D-thiogalactopyranoside (IPTG).
RBS
101 .. 106  =  6 bp
ribosome binding site
RBS
101 .. 106  =  6 bp
ribosome binding site
lac operator
30 .. 46  =  17 bp
The lac repressor binds to the lac operator to inhibit transcription in E. coli. This inhibition can be relieved by adding lactose or isopropyl-β-D-thiogalactopyranoside (IPTG).
lac operator
30 .. 46  =  17 bp
The lac repressor binds to the lac operator to inhibit transcription in E. coli. This inhibition can be relieved by adding lactose or isopropyl-β-D-thiogalactopyranoside (IPTG).
stop codons
194 .. 204  =  11 bp
stop codons in all three reading frames
stop codons
194 .. 204  =  11 bp
stop codons in all three reading frames
ORF:  1217 .. 1468  =  252 bp
ORF:  83 amino acids  =  9.1 kDa
ORF:  3590 .. 3829  =  240 bp
ORF:  79 amino acids  =  9.4 kDa
ORF:  348 .. 1007  =  660 bp
ORF:  219 amino acids  =  25.7 kDa
ORF:  1231 .. 1494  =  264 bp
ORF:  87 amino acids  =  8.9 kDa
ORF:  2083 .. 2400  =  318 bp
ORF:  105 amino acids  =  11.2 kDa
ORF:  1251 .. 2210  =  960 bp
ORF:  319 amino acids  =  34.1 kDa
ORF:  3624 .. 4439  =  816 bp
ORF:  271 amino acids  =  31.0 kDa
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Individual Sequences & Maps

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pQE-50
pQE-9
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pQE-22
pQE-51
pQE-T7 (cloning region)
pIX 3.0
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pQE-7
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pQE-11
pQE-30 Xa
pQE-70
pQE-TriSystem His-Strep2
pQE-12
pQE-31
pQE-8
pQE-TriSystem Strep
pQE-13
pQE-32
pQE-80L
pQE-Trisystem-5
pQE-14
pQE-4
pQE-80L-Kan
pQE-Trisystem-6
pQE-15
pQE-40
pQE-81L
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pQE-16
pQE-41
pQE-81L-Kan
pREP4
pQE-17
pQE-42
pQE-82L
TAGZyme pQE-1
pQE-18
pQE-5
pQE-82L-Kan
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