Provided herein, in some embodiments, are engineered cells and use of the same for increased hydrogen production. In particular, provided herein are genetically engineered cells comprising a polynucleotide encoding a fusion protein comprising a photosystem I (PSI) protein and an algal hydrogenase, as well as methods for producing such genetically engineered cells. Also provided herein are methods for increasing hydrogen (H.sub.2) production in cells.

Provided herein, in some embodiments, are engineered cells and use of the same for increased hydrogen production. In particular, provided herein are genetically engineered cells comprising a polynucleotide encoding a fusion protein comprising a photosystem I (PSI) protein and an algal hydrogenase, as well as methods for producing such genetically engineered cells. Also provided herein are methods for increasing hydrogen (H.sub.2) production in cells.

A method for using peptides for flavorings is described. The method includes, at least, obtaining a microalgae, extracting chlorella protein from the microalgae, modifying a factor associated with the chlorella protein to change an amino acid combination of the chlorella protein, and identifying a peptide flavoring associated with the modified amino acid combination.

A method for using peptides for flavorings is described. The method includes, at least, obtaining a microalgae, extracting chlorella protein from the microalgae, modifying a factor associated with the chlorella protein to change an amino acid combination of the chlorella protein, and identifying a peptide flavoring associated with the modified amino acid combination.

The invention, in some aspects relates to compositions and methods for altering cell activity and function and the introduction and use of light-activated ion channels.

The invention, in some aspects relates to compositions and methods for altering cell activity and function and the introduction and use of light-activated ion channels.

The present disclosure provides compositions and methods used for optogenetics, wherein the composition comprises an optogenetic device and a retinoid processing enzyme.

The present disclosure provides compositions and methods used for optogenetics, wherein the composition comprises an optogenetic device and a retinoid processing enzyme.

The invention provides modified griffithsin polypeptides comprising the amino acid sequence of SEQ ID NO: 1, as well as corresponding nucleic acids, vectors, cells, fusion proteins, constructs, conjugates, and methods of inhibiting viral infection.

The invention provides modified griffithsin polypeptides comprising the amino acid sequence of SEQ ID NO: 1, as well as corresponding nucleic acids, vectors, cells, fusion proteins, constructs, conjugates, and methods of inhibiting viral infection.