ID   RK21_GALSU              Reviewed;         110 AA.
AC   Q4J6A5;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   02-AUG-2005, sequence version 1.
DT   25-MAY-2022, entry version 51.
DE   RecName: Full=50S ribosomal protein L21, chloroplastic {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rpl21 {ECO:0000255|HAMAP-Rule:MF_01363};
OS   Galdieria sulphuraria (Red alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae; Galdieria.
OX   NCBI_TaxID=130081;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=14-1-1 / Isolate 107.79/Goettingen;
RX   PubMed=1511125; DOI=10.1007/bf00040531;
RA   Maid U., Zetsche K.;
RT   "A 16 kb small single-copy region separates the plastid DNA inverted repeat
RT   of the unicellular red alga Cyanidium caldarium: physical mapping of the
RT   IR-flanking regions and nucleotide sequences of the psbD, psbC, rps16, 5S
RT   rRNA and rpl21 genes.";
RL   Plant Mol. Biol. 19:1001-1010(1992).
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   -!- MISCELLANEOUS: Although originally identified as Cyanidium caldarium,
CC       these sequences derive from Galdieria sulphuraria. {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bL21 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01363}.
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DR   EMBL; S43684; AAA10401.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q4J6A5; -.
DR   SMR; Q4J6A5; -.
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   3: Inferred from homology;
KW   Chloroplast; Plastid; Ribonucleoprotein; Ribosomal protein; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..110
FT                   /note="50S ribosomal protein L21, chloroplastic"
FT                   /id="PRO_0000269444"
SQ   SEQUENCE   110 AA;  12862 MW;  ECCFA08FB9D24011 CRC64;
     MTYAIIENSG RQFFTEPGKF IDINHIKAEV GDIIYFNRVL LLKSNNLIEI GYPFINNIKV
     KAKILKHFKD KKIRVYKMNP KKGTRKTKGY RSLCTRVLIE SIENTENIIN