ID   RS21A_ANAVA             Reviewed;          62 AA.
AC   P0A4B8; P49224;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   25-MAY-2022, entry version 53.
DE   RecName: Full=30S ribosomal protein S21 A;
GN   Name=rpsU1; Synonyms=rps21;
OS   Anabaena variabilis.
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Trichormus.
OX   NCBI_TaxID=264691;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=M3;
RX   PubMed=8193307; DOI=10.1007/bf00029864;
RA   Sato N.;
RT   "A cold-regulated cyanobacterial gene cluster encodes RNA-binding protein
RT   and ribosomal protein S21.";
RL   Plant Mol. Biol. 24:819-823(1994).
RN   [2]
RP   PROTEIN SEQUENCE OF 2-19.
RC   STRAIN=M3;
RX   PubMed=10050320; DOI=10.1093/oxfordjournals.pcp.a029343;
RA   Sato N., Wada A., Tanaka A.;
RT   "Ribosomal proteins in the cyanobacterium Anabaena variabilis strain M3:
RT   presence of L25 protein.";
RL   Plant Cell Physiol. 39:1367-1371(1998).
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bS21 family.
CC       {ECO:0000305}.
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DR   EMBL; D17710; BAA04564.1; -; Genomic_DNA.
DR   PIR; I39622; I39622.
DR   AlphaFoldDB; P0A4B8; -.
DR   SMR; P0A4B8; -.
DR   GO; GO:0005840; C:ribosome; IEA:UniProtKB-KW.
DR   GO; GO:0003735; F:structural constituent of ribosome; IEA:InterPro.
DR   GO; GO:0006412; P:translation; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.20.5.1150; -; 1.
DR   HAMAP; MF_00358; Ribosomal_S21; 1.
DR   InterPro; IPR001911; Ribosomal_S21.
DR   InterPro; IPR018278; Ribosomal_S21_CS.
DR   InterPro; IPR038380; S21_sf.
DR   PANTHER; PTHR21109; PTHR21109; 1.
DR   Pfam; PF01165; Ribosomal_S21; 1.
DR   PRINTS; PR00976; RIBOSOMALS21.
DR   TIGRFAMs; TIGR00030; S21p; 1.
DR   PROSITE; PS01181; RIBOSOMAL_S21; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Ribonucleoprotein; Ribosomal protein.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000269|PubMed:10050320"
FT   CHAIN           2..62
FT                   /note="30S ribosomal protein S21 A"
FT                   /id="PRO_0000178287"
FT   REGION          43..62
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        47..62
FT                   /note="Basic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   CONFLICT        4
FT                   /note="I -> K (in Ref. 2; AA sequence)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   62 AA;  7531 MW;  A924296DDFC7C720 CRC64;
     MTQIVVGENE HIESALRRFK REVSKAGIFQ DMRKHRHFET PIEKSKRKKL ALHKQSKRRF
     RT