What is the significance of WIPO Standard ST.26 in the MPEP’s definition of nucleotides?

The MPEP 2412.03(d) explicitly references WIPO Standard ST.26 in its definition of nucleotides: “‘Nucleotide’ includes any nucleotide, nucleotide analog, or modified nucleotide as defined in paragraphs 3(f) and 3(g) of WIPO Standard ST.26.” WIPO Standard ST.26 is an international standard for the presentation of nucleotide and amino acid sequence listings in patent applications. Its incorporation…

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How does WIPO Standard ST.26 relate to the definition of “Modified Nucleotide” in MPEP 2412.03(e)?

MPEP 2412.03(e) directly references WIPO Standard ST.26 for the definition of “Modified Nucleotide”: “Modified nucleotide” includes any nucleotide as described in paragraph 3(f) of WIPO Standard ST.26. The MPEP further elaborates on WIPO Standard ST.26’s definition: “WIPO Standard ST.26, paragraph 3(f), identifies that a “modified nucleotide” means any “nucleotide” as explained in MPEP § 2412.03(d)…

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