ID   RK21_ANTAG              Reviewed;         118 AA.
AC   Q85AT7;
DT   29-MAR-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   25-MAY-2022, entry version 60.
DE   RecName: Full=50S ribosomal protein L21, chloroplastic {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rpl21 {ECO:0000255|HAMAP-Rule:MF_01363};
OS   Anthoceros angustus (Hornwort) (Anthoceros formosae).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Anthocerotophyta;
OC   Anthocerotopsida; Anthocerotidae; Anthocerotales; Anthocerotaceae;
OC   Anthoceros.
OX   NCBI_TaxID=48387;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND RNA EDITING.
RX   PubMed=12527781; DOI=10.1093/nar/gkg155;
RA   Kugita M., Kaneko A., Yamamoto Y., Takeya Y., Matsumoto T., Yoshinaga K.;
RT   "The complete nucleotide sequence of the hornwort (Anthoceros formosae)
RT   chloroplast genome: insight into the earliest land plants.";
RL   Nucleic Acids Res. 31:716-721(2003).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [MRNA], AND RNA EDITING.
RC   TISSUE=Thallus;
RX   PubMed=12711687; DOI=10.1093/nar/gkg327;
RA   Kugita M., Yamamoto Y., Fujikawa T., Matsumoto T., Yoshinaga K.;
RT   "RNA editing in hornwort chloroplasts makes more than half the genes
RT   functional.";
RL   Nucleic Acids Res. 31:2417-2423(2003).
CC   -!- FUNCTION: This protein binds to 23S rRNA. {ECO:0000255|HAMAP-
CC       Rule:MF_01363}.
CC   -!- SUBUNIT: Part of the 50S ribosomal subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01363}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- RNA EDITING: Modified_positions=15 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 53 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 60 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 61 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 93 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 103 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 104 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 108 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}, 109 {ECO:0000269|PubMed:12527781,
CC       ECO:0000269|PubMed:12711687}; Note=The nonsense codons at positions 15,
CC       93 and 104 are modified to sense codons.;
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bL21 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01363}.
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DR   EMBL; AB086179; BAC55397.1; -; Genomic_DNA.
DR   EMBL; AB087482; BAC55497.1; -; mRNA.
DR   RefSeq; NP_777460.1; NC_004543.1.
DR   AlphaFoldDB; Q85AT7; -.
DR   SMR; Q85AT7; -.
DR   GeneID; 2553416; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0005840; C:ribosome; IEA:UniProtKB-KW.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003735; F:structural constituent of ribosome; IEA:InterPro.
DR   GO; GO:0006412; P:translation; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01363; Ribosomal_L21; 1.
DR   InterPro; IPR036164; L21-like_sf.
DR   InterPro; IPR028909; L21p-like.
DR   InterPro; IPR001787; Ribosomal_L21.
DR   PANTHER; PTHR21349; PTHR21349; 1.
DR   Pfam; PF00829; Ribosomal_L21p; 1.
DR   SUPFAM; SSF141091; SSF141091; 1.
DR   TIGRFAMs; TIGR00061; L21; 1.
PE   2: Evidence at transcript level;
KW   Chloroplast; Plastid; Ribonucleoprotein; Ribosomal protein; RNA editing;
KW   RNA-binding; rRNA-binding.
FT   CHAIN           1..118
FT                   /note="50S ribosomal protein L21, chloroplastic"
FT                   /id="PRO_0000181022"
SQ   SEQUENCE   118 AA;  13926 MW;  B134549604BA8CBA CRC64;
     MNTYAIIDTG GEQLRVEPGR FYDMRHFTLL NPSILDSNTK VLIYRVLMIH HESNIALGDS
     WLEDATIKGR VLHSHFKDKI TIYKMRSKKK MRRKLGYRLN LARFVVDSIC FDGKEFYK