RL40_OPHHA
ID RL40_OPHHA Reviewed; 128 AA.
AC P68205; P68204; Q9DF54;
DT 25-OCT-2004, integrated into UniProtKB/Swiss-Prot.
DT 10-AUG-2010, sequence version 2.
DT 25-MAY-2022, entry version 56.
DE RecName: Full=Ubiquitin-60S ribosomal protein L40;
DE Contains:
DE RecName: Full=Ubiquitin;
DE Contains:
DE RecName: Full=60S ribosomal protein L40;
DE AltName: Full=CEP52;
DE Flags: Precursor;
OS Ophiophagus hannah (King cobra) (Naja hannah).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Lepidosauria; Squamata; Bifurcata; Unidentata; Episquamata; Toxicofera;
OC Serpentes; Colubroidea; Elapidae; Elapinae; Ophiophagus.
OX NCBI_TaxID=8665;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RC TISSUE=Venom gland;
RA Lee W., Zhang Y.;
RT "cDNA sequence of king cobra (Ophiophagus hannah) ubiquitin fusion
RT protein.";
RL Submitted (AUG-2000) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: [Ubiquitin]: Exists either covalently attached to another
CC protein, or free (unanchored). When covalently bound, it is conjugated
CC to target proteins via an isopeptide bond either as a monomer
CC (monoubiquitin), a polymer linked via different Lys residues of the
CC ubiquitin (polyubiquitin chains) or a linear polymer linked via the
CC initiator Met of the ubiquitin (linear polyubiquitin chains).
CC Polyubiquitin chains, when attached to a target protein, have different
CC functions depending on the Lys residue of the ubiquitin that is linked:
CC Lys-6-linked may be involved in DNA repair; Lys-11-linked is involved
CC in ERAD (endoplasmic reticulum-associated degradation) and in cell-
CC cycle regulation; Lys-29-linked is involved in proteotoxic stress
CC response and cell cycle; Lys-33-linked is involved in kinase
CC modification; Lys-48-linked is involved in protein degradation via the
CC proteasome; Lys-63-linked is involved in endocytosis, DNA-damage
CC responses as well as in signaling processes leading to activation of
CC the transcription factor NF-kappa-B. Linear polymer chains formed via
CC attachment by the initiator Met lead to cell signaling. Ubiquitin is
CC usually conjugated to Lys residues of target proteins, however, in rare
CC cases, conjugation to Cys or Ser residues has been observed. When
CC polyubiquitin is free (unanchored-polyubiquitin), it also has distinct
CC roles, such as in activation of protein kinases, and in signaling (By
CC similarity). {ECO:0000250|UniProtKB:P62987}.
CC -!- FUNCTION: [60S ribosomal protein L40]: Component of the 60S subunit of
CC the ribosome. {ECO:0000250|UniProtKB:P62987}.
CC -!- SUBUNIT: Ribosomal protein L40 is part of the 60S ribosomal subunit.
CC {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: [Ubiquitin]: Cytoplasm {ECO:0000250}. Nucleus
CC {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: [60S ribosomal protein L40]: Cytoplasm
CC {ECO:0000250}.
CC -!- MISCELLANEOUS: Ubiquitin is synthesized as a polyubiquitin precursor
CC with exact head to tail repeats, the number of repeats differs between
CC species. In some species there is a final amino-acid after the last
CC repeat. Some ubiquitin genes contain a single copy of ubiquitin fused
CC to a ribosomal protein (either L40 or S27A).
CC -!- SIMILARITY: In the N-terminal section; belongs to the ubiquitin family.
CC {ECO:0000305}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the eukaryotic
CC ribosomal protein eL40 family. {ECO:0000305}.
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DR EMBL; AF297036; AAG17445.1; -; mRNA.
DR AlphaFoldDB; P68205; -.
DR SMR; P68205; -.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
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:InterPro.
DR Gene3D; 4.10.1060.50; -; 1.
DR InterPro; IPR038587; L40e_sf.
DR InterPro; IPR001975; Ribosomal_L40e.
DR InterPro; IPR000626; Ubiquitin-like_dom.
DR InterPro; IPR029071; Ubiquitin-like_domsf.
DR InterPro; IPR019954; Ubiquitin_CS.
DR InterPro; IPR019956; Ubiquitin_dom.
DR Pfam; PF01020; Ribosomal_L40e; 1.
DR Pfam; PF00240; ubiquitin; 1.
DR PRINTS; PR00348; UBIQUITIN.
DR SMART; SM01377; Ribosomal_L40e; 1.
DR SMART; SM00213; UBQ; 1.
DR SUPFAM; SSF54236; SSF54236; 1.
DR PROSITE; PS00299; UBIQUITIN_1; 1.
DR PROSITE; PS50053; UBIQUITIN_2; 1.
PE 2: Evidence at transcript level;
KW Cytoplasm; Isopeptide bond; Methylation; Nucleus; Ribonucleoprotein;
KW Ribosomal protein; Ubl conjugation.
FT CHAIN 1..76
FT /note="Ubiquitin"
FT /id="PRO_0000114810"
FT CHAIN 77..128
FT /note="60S ribosomal protein L40"
FT /id="PRO_0000138756"
FT DOMAIN 1..76
FT /note="Ubiquitin-like"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00214"
FT SITE 54
FT /note="Interacts with activating enzyme"
FT SITE 68
FT /note="Essential for function"
FT SITE 72
FT /note="Interacts with activating enzyme"
FT MOD_RES 98
FT /note="N6,N6,N6-trimethyllysine"
FT /evidence="ECO:0000250|UniProtKB:P62987"
FT CROSSLNK 6
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in ubiquitin)"
FT /evidence="ECO:0000250|UniProtKB:P62987"
FT CROSSLNK 11
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in ubiquitin)"
FT /evidence="ECO:0000250|UniProtKB:P62987"
FT CROSSLNK 27
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in ubiquitin)"
FT /evidence="ECO:0000250|UniProtKB:P62987"
FT CROSSLNK 29
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in ubiquitin)"
FT /evidence="ECO:0000250|UniProtKB:P62987"
FT CROSSLNK 33
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in ubiquitin)"
FT /evidence="ECO:0000250|UniProtKB:P62987"
FT CROSSLNK 48
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in ubiquitin)"
FT /evidence="ECO:0000250|UniProtKB:P62987"
FT CROSSLNK 63
FT /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT G-Cter in ubiquitin)"
FT /evidence="ECO:0000250|UniProtKB:P62987"
FT CROSSLNK 76
FT /note="Glycyl lysine isopeptide (Gly-Lys) (interchain with
FT K-? in acceptor proteins)"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00214"
SQ SEQUENCE 128 AA; 14728 MW; 7BCB602ABEFAD02A CRC64;
MQIFVKTLTG KTITLEVEPS DTIENVKAKI QDKEGIPPDQ QRLIFAGKQL EDGRTLSDYN
IQKESTLHLV LRLRGGIIEP SLRQLAQKYN CDKMICRKCY ARLHPRAVNC RKKKCGHTNN
LRPKKKVK
