40S ribosomal protein S18 (RPS18B). Identical to 40S ribosomal protein S18 (RPS18C) [Arabidopsis Thaliana] (GB:P34788;GB:Q94K22); similar to RPS18C (S18 RIBOSOMAL PROTEIN), structural constituent of ribosome [Arabidopsis thaliana] (TAIR:AT4G09800.1); similar to PFL (POINTED FIRST LEAVES), structural constituent of ribosome [Arabidopsis thaliana] (TAIR:AT1G22780.1); similar to unknown [Populus trichocarpa] (GB:ABK92692.1); contains InterPro domain Ribosomal protein S13-like, H2TH; (InterPro:IPR010979); contains InterPro domain Ribosomal protein S13; (InterPro:IPR001892)