Fill Anomer Positions — fill_anomer

Add anomer positions to glycan structures with missing anomer position information. For example, "Gal(??-?)GalNAc(??-" is converted to "Gal(?1-?)GalNAc(?1-".

Usage

fill_anomer_pos(strucs)

Arguments

strucs: A glycan_structure() vector with concrete monosaccharides.

Value

A glycan_structure() vector with anomer positions added where missing.

Details

For anomer positions that are already specified in the input structures, this function does not modify them.

Examples

glycans <- as_glycan_structure(c(
  "Gal(??-?)GalNAc(??-",
  "Neu5Ac(??-?)Gal(??-?)GalNAc(??-"
))
fill_anomer_pos(glycans)
#> <glycan_structure[2]>
#> [1] Gal(?1-?)GalNAc(?1-
#> [2] Neu5Ac(?2-?)Gal(?1-?)GalNAc(?1-
#> # Unique structures: 2