pHyPer-cyto vector

cat.# FP941

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 pHyPer-cyto FP941 20 μg € 600 / 300* *50% discount on the second and subsequent vectors encoding same fluorescent protein or sensor ordered by the same customer. The price does not include delivery. The price varies in different countries. Please contact your local distributor for exact prices and delivery information. The product is not available in certain countries. Please contact Evrogen or your local distributor before ordering. Vector type mammalian expression vector Reporter HyPer Reporter codon usage mammalian / E. coli Promoter for HyPer PCMV IE Host cells mammalian Selection prokaryotic – kanamycin eukaryotic – neomycin (G418) Replication prokaryotic – pUC ori eukaryotic – SV40 ori Use Expression of fluorescent hydrogen peroxide sensor HyPer in mammalian cells under the control of CMV promoter; source of HyPer coding sequence

Vector description

pHyPer-cyto is a mammalian expression vector encoding a fluorescent sensor HyPer (see reporter description). To increase mRNA translation efficiency, Kozak consensus translation initiation site is generated upstream of the HyPer coding sequence [Kozak, 1987].

The vector can be also used as a source of HyPer coding sequence. Flanking restriction sites are convenient for excision of HyPer sequence and its further insertion into other expression vectors of choice. Alternatively, HyPer coding sequence can be amplified by PCR.

The vector backbone 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

pHyPer-cyto vector can be transfected into mammalian cells by any known transfection method. CMV promoter provides strong, constitutive HyPer expression 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
HyPer
Kozak consensus translation initiation site: 596-606
Start codon (ATG): 603-605
Stop codon: 2037-2039
SV40 early mRNA polyadenylation signal
Polyadenylation signals: 2238-2243 & 2267-2272
mRNA 3' ends: 2276 & 2288
f1 single-strand DNA origin: 2335-2790
Bacterial promoter for expression of Kan^r gene
-35 region: 2852-2857
-10 region: 2875-2880
Transcription start point: 2887
SV40 origin of replication: 3131-3266
SV40 early promoter
Enhancer (72-bp tandem repeats): 2964-3035 & 3036-3107
21-bp repeats: 3111-3131, 3132-3152 & 3154-3174
Early promoter element: 3187-3193
Major transcription start points: 3183, 3221, 3227 & 3232
Kanamycin/neomycin resistance gene
Neomycin phosphotransferase coding sequences:
Start codon (ATG): 3315-3317
Stop codon: 4107-4109
G->A mutation to remove Pst I site: 3497
C->A (Arg to Ser) mutation to remove BssH II site: 3843
Herpes simplex virus (HSV) thymidine kinase (TK) polyadenylation signal
Polyadenylation signals: 4345-4350 & 4358-4363
pUC plasmid replication origin: 4694-5337