ID   RL21_NITHX              Reviewed;         128 AA.
AC   Q1QQU3;
DT   09-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   16-MAY-2006, sequence version 1.
DT   03-AUG-2022, entry version 83.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363}; OrderedLocusNames=Nham_0514;
OS   Nitrobacter hamburgensis (strain DSM 10229 / NCIMB 13809 / X14).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Nitrobacter.
OX   NCBI_TaxID=323097;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 10229 / NCIMB 13809 / X14;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Ivanova N., Ward B., Arp D., Klotz M., Stein L.,
RA   O'Mullan G., Starkenburg S., Sayavedra L., Poret-Peterson A.T.,
RA   Gentry M.E., Bruce D., Richardson P.;
RT   "Complete sequence of chromosome of Nitrobacter hamburgensis X14.";
RL   Submitted (MAR-2006) to the EMBL/GenBank/DDBJ databases.
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; CP000319; ABE61404.1; -; Genomic_DNA.
DR   RefSeq; WP_011509108.1; NC_007964.1.
DR   AlphaFoldDB; Q1QQU3; -.
DR   SMR; Q1QQU3; -.
DR   STRING; 323097.Nham_0514; -.
DR   EnsemblBacteria; ABE61404; ABE61404; Nham_0514.
DR   KEGG; nha:Nham_0514; -.
DR   eggNOG; COG0261; Bacteria.
DR   HOGENOM; CLU_061463_1_2_5; -.
DR   OMA; HRQEITR; -.
DR   OrthoDB; 1949059at2; -.
DR   Proteomes; UP000001953; Chromosome.
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-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   Reference proteome; Ribonucleoprotein; Ribosomal protein; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..128
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000270698"
FT   REGION          104..128
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        109..128
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   128 AA;  13839 MW;  26C08CBBC284B185 CRC64;
     MFAVIKTGGR QYRVVPDDVL EIGKIAGDVG TIVQLGEVLV LGGDTPVLGL PTVAGASVAA
     EVLQHKRGPK VIAFKKRRRK HSKRKRGYRD EITVLRITEI LADGKTPTVG PRPKKEKVVE
     PAEGEGDH