holA
DNA polymerase III subunit deltaBBF10K_003182
source
Escherichia coli str. K-12 substr. MG1655
Part of the beta sliding clamp loading complex, which hydrolyzes ATP to load the beta clamp onto primed DNA to form the DNA replication pre-initiation complex (PubMed:2040637). DNA polymerase III is a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria. This DNA polymerase also exhibits 3'-5' exonuclease activity. The delta subunit is the wrench that will open the beta subunit dimer, which has been modeled to leave a gap large enough for ssDNA to pass through (PubMed:11525728). The gamma complex (gamma(3),delta,delta') is thought to load beta dimers onto DNA by binding ATP which alters the complex's conformation so it can bind beta sliding clamp dimers and open them at one interface. Primed DNA is recognized, ATP is hydrolyzed releasing the gamma complex and closing the beta sliding clamp ring around the primed DNA (PubMed:9927437).
attr.
Keoni Gandall
Usage
growth
shipping strain
{shipping_strain}
growth conditions
37 C, shaking 300 rpm
antibiotic
ampicillin
expression
strain
N/A
promoter
N/A
inducer
N/A
cloning
method
GoldenGate
enzyme
BsaI
overhangs
3' - AATG … GCTT - 5'
sequencing
forward primer
M13 For
reverse primer
M13 Rev
Construct
plasmid name
pOpen-holA
plasmid size
3155
insert size
1032
origin
ColE1 High Copy
copy number
500-700
Safety
BSL
BSL1
other information
No Value
References
Available Elsewhere
FALSE