ID   RL21_PROVB              Reviewed;          95 AA.
AC   P94688;
DT   15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1997, sequence version 1.
DT   03-AUG-2022, entry version 57.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
DE   Flags: Fragment;
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Synonyms=rpl21 {ECO:0000255|HAMAP-Rule:MF_01363};
OS   Prosthecochloris vibrioformis (Chlorobium vibrioforme).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Prosthecochloris.
OX   NCBI_TaxID=1098;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8955383; DOI=10.1128/jb.178.24.7047-7052.1996;
RA   Naterstad K., Lauvrak V., Sirevag R.;
RT   "Malate dehydrogenase from the mesophile Chlorobium vibrioforme and from
RT   the mild thermophile Chlorobium tepidum: molecular cloning, construction of
RT   a hybrid, and expression in Escherichia coli.";
RL   J. Bacteriol. 178:7047-7052(1996).
CC   -!- FUNCTION: This protein binds to 23S rRNA in the presence of protein
CC       L20. {ECO:0000255|HAMAP-Rule:MF_01363}.
CC   -!- SUBUNIT: Part of the 50S ribosomal subunit. Contacts protein L20.
CC       {ECO:0000255|HAMAP-Rule:MF_01363}.
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bL21 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01363}.
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DR   EMBL; X79218; CAA55804.1; -; Genomic_DNA.
DR   AlphaFoldDB; P94688; -.
DR   SMR; P94688; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR   GO; GO:0005840; C:ribosome; IEA:UniProtKB-KW.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0003735; F:structural constituent of ribosome; IEA:InterPro.
DR   GO; GO:0006412; P:translation; IEA:InterPro.
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   Ribonucleoprotein; Ribosomal protein; RNA-binding; rRNA-binding.
FT   CHAIN           1..>95
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000180998"
FT   NON_TER         95
SQ   SEQUENCE   95 AA;  10902 MW;  546D7587719AC154 CRC64;
     MQALIEISDK QFLVQEGDKI FVPKQKAVAG DVIEVKSLMK VGQADSALSE GTAKVKVLDH
     VRDETIIVFR KKRRKRFQRR NGHRQHMTQV EVMSI