ID   RL1_BUCAI               Reviewed;         231 AA.
AC   P57149;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   04-NOV-2026, entry version 123.
DE   RecName: Full=Large ribosomal subunit protein uL1 {ECO:0000255|HAMAP-Rule:MF_01318};
DE   AltName: Full=50S ribosomal protein L1 {ECO:0000305};
GN   Name=rplA {ECO:0000255|HAMAP-Rule:MF_01318}; OrderedLocusNames=BU037;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Gammaproteobacteria;
OC   Enterobacterales; Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- FUNCTION: Binds directly to 23S rRNA. The L1 stalk is quite mobile in
CC       the ribosome, and is involved in E site tRNA release.
CC       {ECO:0000255|HAMAP-Rule:MF_01318}.
CC   -!- FUNCTION: Protein L1 is also a translational repressor protein, it
CC       controls the translation of the L11 operon by binding to its mRNA.
CC       {ECO:0000255|HAMAP-Rule:MF_01318}.
CC   -!- SUBUNIT: Part of the 50S ribosomal subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01318}.
CC   -!- SIMILARITY: Belongs to the universal ribosomal protein uL1 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01318}.
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DR   EMBL; BA000003; BAB12764.1; -; Genomic_DNA.
DR   RefSeq; WP_010895913.1; NC_002528.1.
DR   AlphaFoldDB; P57149; -.
DR   SMR; P57149; -.
DR   STRING; 563178.BUAP5A_036; -.
DR   EnsemblBacteria; BAB12764; BAB12764; BAB12764.
DR   KEGG; buc:BU037; -.
DR   PATRIC; fig|107806.10.peg.50; -.
DR   eggNOG; COG0081; Bacteria.
DR   HOGENOM; CLU_062853_0_0_6; -.
DR   OMA; AAGDKHM; -.
DR   Proteomes; UP000001806; Chromosome.
DR   GO; GO:0022625; C:cytosolic large ribosomal subunit; IEA:TreeGrafter.
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   CDD; cd00403; Ribosomal_L1; 1.
DR   FunFam; 3.40.50.790:FF:000001; 50S ribosomal protein L1; 1.
DR   Gene3D; 3.30.190.20; -; 1.
DR   Gene3D; 3.40.50.790; -; 1.
DR   HAMAP; MF_01318_B; Ribosomal_uL1_B; 1.
DR   InterPro; IPR005878; Ribosom_uL1_bact.
DR   InterPro; IPR002143; Ribosomal_uL1.
DR   InterPro; IPR023674; Ribosomal_uL1-like.
DR   InterPro; IPR028364; Ribosomal_uL1/biogenesis.
DR   InterPro; IPR016095; Ribosomal_uL1_3-a/b-sand.
DR   InterPro; IPR023673; Ribosomal_uL1_CS.
DR   NCBIfam; TIGR01169; rplA_bact; 1.
DR   PANTHER; PTHR36427; 54S RIBOSOMAL PROTEIN L1, MITOCHONDRIAL; 1.
DR   PANTHER; PTHR36427:SF3; LARGE RIBOSOMAL SUBUNIT PROTEIN UL1M; 1.
DR   Pfam; PF00687; Ribosomal_L1; 1.
DR   PIRSF; PIRSF002155; Ribosomal_L1; 1.
DR   SUPFAM; SSF56808; Ribosomal protein L1; 1.
DR   PROSITE; PS01199; RIBOSOMAL_L1; 1.
PE   3: Inferred from homology;
KW   Reference proteome; Repressor; Ribonucleoprotein; Ribosomal protein;
KW   RNA-binding; rRNA-binding; Translation regulation; tRNA-binding.
FT   CHAIN           1..231
FT                   /note="Large ribosomal subunit protein uL1"
FT                   /id="PRO_0000125630"
SQ   SEQUENCE   231 AA;  25485 MW;  82E657C4B28DC27E CRC64;
     MNKKTKRMKK IKEHINFAKL HHIDETIDLL KKSSTVKFNE SIDIAINLGI NSKKSDQNIR
     SSTVLPNGIG RSIRVAVFTQ GDNIAIAKDA GAELIGMEDL SEKIKKEGVD FDVVIATPDA
     MKIVTQLGQI LGPRNLMPNT KLGTITTNIA EAIKNAKTGQ VRYRNDKNGI IHATIGRINF
     HKNEIKENLN VFLESIKKAK PPQSKGIYIK KIVLSTTMGV GLMVDQSTLS L
//