The phrase "and the second structures" is correct and usable in written English.
It can be used when referring to multiple structures in a context where the first structure has already been mentioned, and you are introducing a second one.
Example: "The first structures were designed for stability, and the second structures focus on aesthetics."
Alternatives: "as well as the second structures" or "along with the second structures".
The different sequences of two genes were translated to predict amino acid by MEGA 4.0 software, and the second structure of the proteins were predicted by PredictProtein (http://www.predictprotein.org); the tertiary structure of proteins were predicted and analyzed by SWISS-MODEL (http://swissmodel.expasy.org/workspace).org/workspace
Construction on the network of LinkNYC kiosks will begin in 2015 and the first structures will be running by the end of that year, according to the city.
You walk up to the campus entrance from the enormous parking lot that defines Queensborough Community College as a commuting institution, and the first structure that greets you, just before the administration building, is the new Harriet and Kenneth Kupferberg Holocaust Research Center and Archives.
We find that the optimally designed subarray structure performs best among them and the third structure is the worst due to large correlation between antennas.
The structures of two substrate analog complexes and the first structure of a DHPS-product cofferx offer new insights into the catalytic mechanism and the architecture of the pABA binding pocket.
These are the first liganded structures of a 4HypE and the first structure of a PRS with an authentic substrate.
This is the first study demonstrating a role for the HicAB system in bacterial persistence and the first structure of a HicA protein that has been experimentally characterized.
The present study is the first to demonstrate a role for the HicAB system in bacterial persistence and the first structure of a HicA toxin that has been experimentally validated.
The second structure, using the same amount of sand and bimodal mixture as the first structure represents an interface with a 25% slope.
Our experiments show that upon mixing actin monomers with Arp2/3 complex, VCA and fascin molecules, the first structures to appear in solution are dense and highly branched aster-like networks of actin filaments [27].
