ID   RS21_ICTPU              Reviewed;          83 AA.
AC   Q90YQ2;
DT   20-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   25-MAY-2022, entry version 54.
DE   RecName: Full=40S ribosomal protein S21;
GN   Name=rps21;
OS   Ictalurus punctatus (Channel catfish) (Silurus punctatus).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Siluriformes;
OC   Ictaluridae; Ictalurus.
OX   NCBI_TaxID=7998;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=12095691; DOI=10.1016/s0378-1119(02)00595-4;
RA   Karsi A., Patterson A., Feng J., Liu Z.-J.;
RT   "Translational machinery of channel catfish: I. A transcriptomic approach
RT   to the analysis of 32 40S ribosomal protein genes and their expression.";
RL   Gene 291:177-186(2002).
CC   -!- SUBUNIT: Component of the 40S small ribosomal subunit.
CC       {ECO:0000250|UniProtKB:P63220}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm, cytosol
CC       {ECO:0000250|UniProtKB:P63220}. Cytoplasm
CC       {ECO:0000250|UniProtKB:P63220}. Rough endoplasmic reticulum
CC       {ECO:0000250|UniProtKB:P63221}. Note=Detected on cytosolic polysomes
CC       (By similarity). Detected in ribosomes that are associated with the
CC       rough endoplasmic reticulum (By similarity).
CC       {ECO:0000250|UniProtKB:P63220, ECO:0000250|UniProtKB:P63221}.
CC   -!- SIMILARITY: Belongs to the eukaryotic ribosomal protein eS21 family.
CC       {ECO:0000305}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AF402830; AAK95204.1; -; mRNA.
DR   RefSeq; NP_001187220.1; NM_001200291.1.
DR   RefSeq; XP_017341772.1; XM_017486283.1.
DR   AlphaFoldDB; Q90YQ2; -.
DR   SMR; Q90YQ2; -.
DR   STRING; 7998.ENSIPUP00000007932; -.
DR   GeneID; 100305057; -.
DR   KEGG; ipu:100305057; -.
DR   CTD; 6227; -.
DR   OMA; ALCGYIR; -.
DR   OrthoDB; 1571849at2759; -.
DR   Proteomes; UP000221080; Chromosome 15.
DR   GO; GO:0022627; C:cytosolic small ribosomal subunit; ISS:UniProtKB.
DR   GO; GO:0042788; C:polysomal ribosome; ISS:UniProtKB.
DR   GO; GO:0005791; C:rough endoplasmic reticulum; IEA:UniProtKB-SubCell.
DR   GO; GO:0003735; F:structural constituent of ribosome; IEA:InterPro.
DR   GO; GO:0002181; P:cytoplasmic translation; ISS:UniProtKB.
DR   Gene3D; 3.30.1230.20; -; 1.
DR   InterPro; IPR001931; Ribosomal_S21e.
DR   InterPro; IPR018279; Ribosomal_S21e_CS.
DR   InterPro; IPR038579; Ribosomal_S21e_sf.
DR   PANTHER; PTHR10442; PTHR10442; 1.
DR   Pfam; PF01249; Ribosomal_S21e; 1.
DR   PIRSF; PIRSF002148; Ribosomal_S21e; 1.
DR   PROSITE; PS00996; RIBOSOMAL_S21E; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Endoplasmic reticulum; Ribonucleoprotein; Ribosomal protein.
FT   CHAIN           1..83
FT                   /note="40S ribosomal protein S21"
FT                   /id="PRO_0000194735"
SQ   SEQUENCE   83 AA;  9130 MW;  599D08AEC360725B CRC64;
     MQNDAGEFVD LYVPRKCSAS NRIIGAKDHA SIQINIAEVD KVTGRFNGQF KTYAICGAIR
     RMGEADDSLL RLAKNDSIVS KNI