pmKate2-zyxin vector

cat.# FP315

The vector sequence has been compiled using the information from sequence databases, published literature, and other sources, together with partial sequences obtained by Evrogen. This vector has not been completely sequenced.

Download vector information: Data sheet (pdf) Sequence (txt) Restriction map (pdf) Restriction table (pdf)

Product Cat.# Size Price pmKate2-zyxin FP315 20 μg € 400 The price does not include delivery. The price varies in different countries. Please contact your local distributor for exact prices and delivery information. Vector type mammalian expression vector Reporter mKate2 Reporter codon usage mammalian Promoter for mKate2 PCMV IE Host cells mammalian Selection prokaryotic - kanamycin eukaryotic - neomycin (G418) Replication prokaryotic - pUC ori eukaryotic - SV40 ori Use far-red fluorescent labeling of zyxin

Vector description

pmKate2-zyxin is a mammalian expression vector encoding mKate2-zyxin fusion protein (see reporter description). The vector can be used for fluorescent labeling of zyxin in living cells.

Widefield TIRF imaging of focal adhesions in transiently transfected fox lung fibroblast cells (FoLu) expressing mKate2 fused to human zyxin. Download video (MPEG, 3 Mb).

mKate2 codon usage is optimized for high expression in mammalian cells, i.e. humanized [Haas et al., 1996]. Human zyxin is fused to the mKate2 N-terminus.

pmKate2-zyxin vector can be used as a source of mKate2-zyxin hybrid sequence. The vector backbone contains unique restriction sites that permit its excision and further insertion into expression vector of choice.

The vector backbone also contains immediate early promoter of cytomegalovirus (P_{CMV IE}) for protein expression, SV40 origin for replication in mammalian cells expressing SV40 T-antigen, pUC origin of replication for propagation in E. coli, and f1 origin for single-stranded DNA production. SV40 polyadenylation signals (SV40 poly A) direct proper processing of the 3' end of the reporter mRNA.

SV40 early promoter (P_SV40) provides neomycin resistance gene (Neo^r) expression to select stably transfected eukaryotic cells using G418. Bacterial promoter (P) provides kanamycin resistance gene expression (Kan^r) in E. coli. Kan^r/Neo^r gene is linked with herpes simplex virus (HSV) thymidine kinase (TK) polyadenylation signals.

Expression in mammalian cells

pmKate2-zyxin can be transfected into mammalian cells by any known transfection method. CMV promoter provides strong, constitutive expression of the mKate2-zyxin fusion in eukaryotic cells. If required, stable transformants can be selected using G418 [Gorman, 1985].

Propagation in E. coli

Suitable host strains for propagation in E. coli include DH5alpha, HB101, XL1-Blue, and other general purpose strains. Plasmid incompatibility group is pMB1/ColE1. The vector confers resistance to kanamycin (30 μg/ml) to E. coli hosts. Copy number in E. coli is about 500.

Location of features

P_{CMV IE}: 1-589
Enhancer region: 59-465
TATA box: 554-560
Transcription start point: 583
Zyxin: 636-2349
mKate2: 2370-3076
SV40 early mRNA polyadenylation signal
Polyadenylation signals: 3221-3226 & 3250-3255
mRNA 3' ends: 3259 & 3271
f1 single-strand DNA origin: 3318-3773
Bacterial promoter for expression of Kan^r gene
-35 region: 3835-3840
-10 region: 3858-3863
Transcription start point: 3870
SV40 origin of replication: 4114-4249
SV40 early promoter
Enhancer (72-bp tandem repeats): 3947-4018 & 4019-4090
21-bp repeats: 4094-4114, 4115-4135 & 4137-4157
Early promoter element: 4170-4176
Major transcription start points: 4166, 4204, 4210 & 4215
Kanamycin/neomycin resistance gene
Neomycin phosphotransferase coding sequences:
Start codon (ATG): 4298-4300
Stop codon: 5090-5092
G->A mutation to remove Pst I site: 4480
C->A (Arg to Ser) mutation to remove BssH II site: 4826
Herpes simplex virus (HSV) thymidine kinase (TK) polyadenylation signal
Polyadenylation signals: 5328-5333 & 5341-5346
pUC plasmid replication origin: 5677-6320