Method rubisco large subunit n-methyltransferase useful for targeting molecules to the active-site vicinity of ribulose-1, 5-bisphosphatet

A modified Rubisco large subunit εN-methyltransferase-carbonic anhydrase (RLSMT-CA), comprising a Rubisco large subunit εN-methyltransferase or biologically active fragment thereof linked to a carbonic anhydrase or biologically active fragment thereof, wherein the modified RLSMT-CA has the ability to bind a Rubisco large subunit, and wherein carboxylase activity of Rubisco is altered upon binding of Rubisco to the modified RLSMT-CA.

An antibody which recognizes and binds to a Rubisco or a Rubisco large subunit, or Rubisco large subunit εN-methyltransferase wherein the antibody is linked to a second molecule.

A modified Rubisco subunit-carbonic anhydrase (RSCA), comprising a Rubisco subunit or biologically active fragment thereof linked to a carbonic anhydrase or biologically active fragment thereof, and wherein the modified RSCA has the ability to assemble into Rubisco.

A method of altering Rubisco carboxylase activity comprising providing a modified RLSMT-CA, RLSMT, or RSCA, a nucleic acid encoding a RLSMT-CA, RLSMT, or RSCA, or an antibody conjugated to CA.

A method of altering plant growth comprising providing a modified RLSMT-CA, RLSMT, or RSCA, a nucleic acid encoding a RLSMT-CA, RLSMT, or RSCA, or an antibody conjugated to CA.

A nucleic acid comprising SEQ ID No.:

• 1.

A polypeptide comprising SEQ ID No.:

• 2.