A0QSD4 (RL2_MYCS2) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
50S ribosomal protein L2

Gene names

Name:	rplB
Ordered Locus Names:	MSMEG_1439

Organism

Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155)

Taxonomic identifier

246196 [NCBI]

Taxonomic lineage

Bacteria › Actinobacteria › Actinobacteridae › Actinomycetales › Corynebacterineae › Mycobacteriaceae › Mycobacterium

Protein attributes

Sequence length	278 AA.
Sequence status	Complete.
Protein existence	Evidence at protein level

General annotation (Comments)

Function	One of the primary rRNA binding proteins. Required for association of the 30S and 50S subunits to form the 70S ribosome, for tRNA binding and peptide bond formation. It has been suggested to have peptidyltransferase activity; this is somewhat controversial. Makes several contacts with the 16S rRNA in the 70S ribosome By similarity. HAMAP MF_01320_B
Subunit structure	Part of the 50S ribosomal subunit. Forms a bridge to the 30S subunit in the 70S ribosome By similarity.
Sequence similarities	Belongs to the ribosomal protein L2P family.

Ontologies

Keywords
Ligand	RNA-binding rRNA-binding
Molecular function	Ribonucleoprotein Ribosomal protein
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological process	translation Inferred from electronic annotation. Source: InterPro
Cellular component	large ribosomal subunit Inferred from electronic annotation. Source: InterPro
Molecular function	rRNA binding Inferred from electronic annotation. Source: UniProtKB-KW structural constituent of ribosome Inferred from electronic annotation. Source: InterPro transferase activity Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 278	278	50S ribosomal protein L2 HAMAP MF_01320_B		PRO_0000309958

Sequences

	Sequence		Length	Mass (Da)
	A0QSD4 [UniParc]. Last modified January 9, 2007. Version 1. Checksum: 1F028C8A34842461	FASTA	278	30,358
	10 20 30 40 50 60 MGIRKYKPTT PGRRGASVSD FAEITRSTPE KSLVRPLHGK GGRNAHGRIT TRHKGGGHKR 70 80 90 100 110 120 AYRVIDFRRH DKDGVNAKVA HIEYDPNRTA NIALLHYLDG EKRYIIAPQG LKQGDVIESG 130 140 150 160 170 180 ANADIKPGNN LPLRNIPAGT VIHAVELRPG GGAKLARSAG VSIQLLGKEG TYAALRMPSG 190 200 210 220 230 240 EIRRVDVRCR ATVGEVGNAE QSNINWGKAG RMRWKGKRPT VRGVVMNPVD HPHGGGEGKT 250 260 270 SGGRHPVSPW GKPEGRTRKP NKPSDKLIVR RRRTGKKR

References

[1]	Fleischmann R.D., Dodson R.J., Haft D.H., Merkel J.S., Nelson W.C., Fraser C.M. Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 700084 / mc(2)155.
[2]	"Ortho-proteogenomics: multiple proteomes investigation through orthology and a new MS-based protocol." Gallien S., Perrodou E., Carapito C., Deshayes C., Reyrat J.-M., Van Dorsselaer A., Poch O., Schaeffer C., Lecompte O. Genome Res. 19:128-135(2009) [PubMed: 18955433] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000480 Genomic DNA. Translation: ABK74446.1.
RefSeq	YP_885822.1. NC_008596.1.
3D structure databases
ProteinModelPortal	A0QSD4.
SMR	A0QSD4. Positions 2-271.
ModBase	Search...
Protein-protein interaction databases
STRING	A0QSD4.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	EBMYCT00000045414; EBMYCP00000043751; EBMYCG00000045409.
GeneID	4531572.
GenomeReviews	Gene locus MSMEG_1439 in contig CP000480_GR.
KEGG	msm:MSMEG_1439.
NMPDR	fig|246196.1.peg.1437.
PATRIC	18075337. VBIMycSme59918_1425.
TIGR	MSMEG_1439.
Phylogenomic databases
eggNOG	COG0090.
GeneTree	EBGT00050000016403.
HOGENOM	HBG748739.
OMA	QSNINWG.
ProtClustDB	PRK09374.
Enzyme and pathway databases
BioCyc	MSME246196:MSMEG_1439-MONOMER.
Family and domain databases
HAMAP	MF_01320_B. Ribosomal_L2_B. [Tree]
InterPro	IPR012340. NA-bd_OB-fold. IPR016027. NA-bd_OB-fold-like. IPR022666. Rbsml_prot_L2_RNA-bd_dom. IPR002171. Ribosomal_L2. IPR014726. Ribosomal_L2_3. IPR005880. Ribosomal_L2_bac-type. IPR022669. Ribosomal_L2_C. IPR022671. Ribosomal_L2_CS. IPR014722. Transl_SH3-like_sub. IPR008991. Translation_prot_SH3-like. [Graphical view]
Gene3D	G3DSA:2.40.50.140. OB_NA_bd_sub. 1 hit. G3DSA:2.30.30.30. Ribosomal_L2. 1 hit. G3DSA:4.10.950.10. Ribosomal_L2. 1 hit.
KO	K02886.
PANTHER	PTHR13691:SF5. Ribosom_L2_bac. 1 hit. PTHR13691. Ribosomal_L2. 1 hit.
Pfam	PF00181. Ribosomal_L2. 1 hit. PF03947. Ribosomal_L2_C. 1 hit. [Graphical view]
PIRSF	PIRSF002158. Ribosomal_L2. 1 hit.
SUPFAM	SSF50249. Nucleic_acid_OB. 1 hit. SSF50104. Transl_SH3_like. 1 hit.
TIGRFAMs	TIGR01171. RplB_bact. 1 hit.
PROSITE	PS00467. RIBOSOMAL_L2. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

RL2_MYCS2

Accession

Primary (citable) accession number: A0QSD4

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 13, 2007
Last sequence update:	January 9, 2007
Last modified:	December 14, 2011
This is version 39 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program