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Database: UniProt
Entry: P26908
LinkDB: P26908
Original site: P26908 
ID   RL21_BACSU              Reviewed;         102 AA.
AC   P26908;
DT   01-AUG-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1992, sequence version 1.
DT   29-SEP-2021, entry version 125.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
DE   AltName: Full=BL20;
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363}; OrderedLocusNames=BSU27960;
OS   Bacillus subtilis (strain 168).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus.
OX   NCBI_TaxID=224308;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=168;
RX   PubMed=1942049; DOI=10.1016/0022-2836(91)90931-u;
RA   Cutting S.M., Roels S., Losick R.;
RT   "Sporulation operon spoIVF and the characterization of mutations that
RT   uncouple mother-cell from forespore gene expression in Bacillus subtilis.";
RL   J. Mol. Biol. 221:1237-1256(1991).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=168;
RX   PubMed=9384377; DOI=10.1038/36786;
RA   Kunst F., Ogasawara N., Moszer I., Albertini A.M., Alloni G., Azevedo V.,
RA   Bertero M.G., Bessieres P., Bolotin A., Borchert S., Borriss R.,
RA   Boursier L., Brans A., Braun M., Brignell S.C., Bron S., Brouillet S.,
RA   Bruschi C.V., Caldwell B., Capuano V., Carter N.M., Choi S.-K.,
RA   Codani J.-J., Connerton I.F., Cummings N.J., Daniel R.A., Denizot F.,
RA   Devine K.M., Duesterhoeft A., Ehrlich S.D., Emmerson P.T., Entian K.-D.,
RA   Errington J., Fabret C., Ferrari E., Foulger D., Fritz C., Fujita M.,
RA   Fujita Y., Fuma S., Galizzi A., Galleron N., Ghim S.-Y., Glaser P.,
RA   Goffeau A., Golightly E.J., Grandi G., Guiseppi G., Guy B.J., Haga K.,
RA   Haiech J., Harwood C.R., Henaut A., Hilbert H., Holsappel S., Hosono S.,
RA   Hullo M.-F., Itaya M., Jones L.-M., Joris B., Karamata D., Kasahara Y.,
RA   Klaerr-Blanchard M., Klein C., Kobayashi Y., Koetter P., Koningstein G.,
RA   Krogh S., Kumano M., Kurita K., Lapidus A., Lardinois S., Lauber J.,
RA   Lazarevic V., Lee S.-M., Levine A., Liu H., Masuda S., Mauel C.,
RA   Medigue C., Medina N., Mellado R.P., Mizuno M., Moestl D., Nakai S.,
RA   Noback M., Noone D., O'Reilly M., Ogawa K., Ogiwara A., Oudega B.,
RA   Park S.-H., Parro V., Pohl T.M., Portetelle D., Porwollik S.,
RA   Prescott A.M., Presecan E., Pujic P., Purnelle B., Rapoport G., Rey M.,
RA   Reynolds S., Rieger M., Rivolta C., Rocha E., Roche B., Rose M., Sadaie Y.,
RA   Sato T., Scanlan E., Schleich S., Schroeter R., Scoffone F., Sekiguchi J.,
RA   Sekowska A., Seror S.J., Serror P., Shin B.-S., Soldo B., Sorokin A.,
RA   Tacconi E., Takagi T., Takahashi H., Takemaru K., Takeuchi M.,
RA   Tamakoshi A., Tanaka T., Terpstra P., Tognoni A., Tosato V., Uchiyama S.,
RA   Vandenbol M., Vannier F., Vassarotti A., Viari A., Wambutt R., Wedler E.,
RA   Wedler H., Weitzenegger T., Winters P., Wipat A., Yamamoto H., Yamane K.,
RA   Yasumoto K., Yata K., Yoshida K., Yoshikawa H.-F., Zumstein E.,
RA   Yoshikawa H., Danchin A.;
RT   "The complete genome sequence of the Gram-positive bacterium Bacillus
RT   subtilis.";
RL   Nature 390:249-256(1997).
RN   [3] {ECO:0007744|PDB:6HA1, ECO:0007744|PDB:6HA8}
RP   STRUCTURE BY ELECTRON MICROSCOPY (3.10 ANGSTROMS) OF 1-102 WITH AND WITHOUT
RP   VIRGINIAMYCIN M, AND SUBUNIT.
RX   PubMed=30126986; DOI=10.1073/pnas.1808535115;
RA   Crowe-McAuliffe C., Graf M., Huter P., Takada H., Abdelshahid M.,
RA   Novacek J., Murina V., Atkinson G.C., Hauryliuk V., Wilson D.N.;
RT   "Structural basis for antibiotic resistance mediated by the Bacillus
RT   subtilis ABCF ATPase VmlR.";
RL   Proc. Natl. Acad. Sci. U.S.A. 115:8978-8983(2018).
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 (PubMed:30126986). Contacts
CC       protein L20 (By similarity). {ECO:0000255|HAMAP-Rule:MF_01363,
CC       ECO:0000269|PubMed:30126986}.
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bL21 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01363}.
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DR   EMBL; X59528; CAA42108.1; -; Genomic_DNA.
DR   EMBL; AL009126; CAB14756.1; -; Genomic_DNA.
DR   PIR; S18439; S18439.
DR   RefSeq; NP_390674.1; NC_000964.3.
DR   RefSeq; WP_003229668.1; NZ_JNCM01000036.1.
DR   PDB; 3J3V; EM; 13.30 A; R=1-102.
DR   PDB; 3J3W; EM; 10.70 A; R=1-102.
DR   PDB; 3J9W; EM; 3.90 A; BU=1-102.
DR   PDB; 5NJT; EM; 3.80 A; k=2-102.
DR   PDB; 6HA1; EM; 3.10 A; R=1-102.
DR   PDB; 6HA8; EM; 3.50 A; R=1-102.
DR   PDB; 6HTQ; EM; 4.50 A; R=2-102.
DR   PDB; 6PPF; EM; 3.40 A; R=1-102.
DR   PDB; 6PPK; EM; 4.40 A; R=1-102.
DR   PDB; 6PVK; EM; 3.40 A; R=1-102.
DR   PDB; 6TNN; EM; 3.07 A; k=1-102.
DR   PDB; 6TPQ; EM; 3.07 A; k=1-102.
DR   PDB; 7AQC; EM; 2.99 A; g=1-102.
DR   PDB; 7AQD; EM; 3.10 A; g=1-102.
DR   PDB; 7AS8; EM; 2.90 A; V=1-102.
DR   PDB; 7AS9; EM; 3.50 A; V=1-102.
DR   PDBsum; 3J3V; -.
DR   PDBsum; 3J3W; -.
DR   PDBsum; 3J9W; -.
DR   PDBsum; 5NJT; -.
DR   PDBsum; 6HA1; -.
DR   PDBsum; 6HA8; -.
DR   PDBsum; 6HTQ; -.
DR   PDBsum; 6PPF; -.
DR   PDBsum; 6PPK; -.
DR   PDBsum; 6PVK; -.
DR   PDBsum; 6TNN; -.
DR   PDBsum; 6TPQ; -.
DR   PDBsum; 7AQC; -.
DR   PDBsum; 7AQD; -.
DR   PDBsum; 7AS8; -.
DR   PDBsum; 7AS9; -.
DR   SMR; P26908; -.
DR   STRING; 224308.BSU27960; -.
DR   jPOST; P26908; -.
DR   PaxDb; P26908; -.
DR   PRIDE; P26908; -.
DR   EnsemblBacteria; CAB14756; CAB14756; BSU_27960.
DR   GeneID; 936368; -.
DR   KEGG; bsu:BSU27960; -.
DR   PATRIC; fig|224308.179.peg.3038; -.
DR   eggNOG; COG0261; Bacteria.
DR   InParanoid; P26908; -.
DR   OMA; HRQEITR; -.
DR   PhylomeDB; P26908; -.
DR   BioCyc; BSUB:BSU27960-MONOMER; -.
DR   Proteomes; UP000001570; Chromosome.
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; IBA:GO_Central.
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   1: Evidence at protein level;
KW   3D-structure; Reference proteome; Ribonucleoprotein; Ribosomal protein;
KW   RNA-binding; rRNA-binding.
FT   CHAIN           1..102
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000180990"
FT   STRAND          3..6
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   STRAND          8..14
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   STRAND          19..23
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   TURN            27..30
FT                   /evidence="ECO:0007829|PDB:7AQC"
FT   STRAND          32..35
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   STRAND          37..39
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   STRAND          43..45
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   STRAND          50..52
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   STRAND          58..67
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   STRAND          71..75
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   TURN            78..81
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   STRAND          84..88
FT                   /evidence="ECO:0007829|PDB:7AS8"
FT   STRAND          91..100
FT                   /evidence="ECO:0007829|PDB:7AS8"
SQ   SEQUENCE   102 AA;  11275 MW;  EEBCFDDFD5FEFEDC CRC64;
     MYAIIKTGGK QIKVEEGQTV YIEKLAAEAG ETVTFEDVLF VGGDNVKVGN PTVEGATVTA
     KVEKQGRAKK ITVFRYKPKK NVHKKQGHRQ PYTKVTIEKI NA
//
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