ID   RK21_PORPU              Reviewed;         104 AA.
AC   P51209;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   25-MAY-2022, entry version 66.
DE   RecName: Full=50S ribosomal protein L21, chloroplastic {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rpl21 {ECO:0000255|HAMAP-Rule:MF_01363};
OS   Porphyra purpurea (Red seaweed) (Ulva purpurea).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Bangiales; Bangiaceae; Porphyra.
OX   NCBI_TaxID=2787;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Avonport;
RA   Reith M.E., Munholland J.;
RT   "Complete nucleotide sequence of the Porphyra purpurea chloroplast
RT   genome.";
RL   Plant Mol. Biol. Rep. 13:333-335(1995).
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   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bL21 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01363}.
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DR   EMBL; U38804; AAC08095.1; -; Genomic_DNA.
DR   PIR; S73130; S73130.
DR   RefSeq; NP_053819.1; NC_000925.1.
DR   AlphaFoldDB; P51209; -.
DR   SMR; P51209; -.
DR   GeneID; 809833; -.
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   InterPro; IPR018258; Ribosomal_L21_CS.
DR   PANTHER; PTHR21349; PTHR21349; 1.
DR   Pfam; PF00829; Ribosomal_L21p; 1.
DR   SUPFAM; SSF141091; SSF141091; 1.
DR   TIGRFAMs; TIGR00061; L21; 1.
DR   PROSITE; PS01169; RIBOSOMAL_L21; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Plastid; Ribonucleoprotein; Ribosomal protein; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..104
FT                   /note="50S ribosomal protein L21, chloroplastic"
FT                   /id="PRO_0000181027"
SQ   SEQUENCE   104 AA;  11877 MW;  76BE1CC85F0DC355 CRC64;
     MTYAIIEASG KQLWIEEGRY YDLNHIPVEP GQSIILGKVL LLNKDGHVSL GHPCIEGAVI
     KATVMRHLRG KKITVFKMKP KKKMRLKKGH RQELTRLMID SIMT