Q3SWG7 (SECB_NITWN) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Protein-export protein secB

Gene names

Name:	secB
Ordered Locus Names:	Nwi_0106

Organism

Nitrobacter winogradskyi (strain Nb-255 / ATCC 25391) [Complete proteome] [HAMAP]

Taxonomic identifier

323098 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Rhizobiales › Bradyrhizobiaceae › Nitrobacter

Protein attributes

Sequence length	159 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	One of the proteins required for the normal export of preproteins out of the cell cytoplasm. It is a molecular chaperone that binds to a subset of precursor proteins, maintaining them in a translocation-competent state. It also specifically binds to its receptor secA By similarity. HAMAP MF_00821
Subunit structure	Homotetramer, a dimer of dimers. One homotetramer interacts with 1 secA dimer By similarity.
Subcellular location	Cytoplasm By similarity HAMAP MF_00821.
Sequence similarities	Belongs to the secB family.

Ontologies

Keywords
Biological process	Protein transport Translocation Transport
Cellular component	Cytoplasm
Molecular function	Chaperone
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	protein tetramerization Inferred from electronic annotation. Source: InterPro protein transport Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	unfolded protein binding 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 – 159	159	Protein-export protein secB HAMAP MF_00821		PRO_0000318249

Sequences

	Sequence		Length	Mass (Da)
	Q3SWG7 [UniParc]. Last modified October 11, 2005. Version 1. Checksum: ADCF43B22A763486	FASTA	159	17,453
	10 20 30 40 50 60 MTNGNGTPPE TAPSPQLNVL AQYTKDFSFE NPNSPASLAP QQQPPSINVQ INVGASNVAE 70 80 90 100 110 120 NDYEVVLKVE GKAEHAGKLM FSFELAYAGV FRIVNVPQEN LHPLVMIECP RLLFPFAREI 130 140 150 VATAVRDGGF PPLMLDPIDF VSLYRQNMER QAAAQQQPS

References

[1]

"Genome sequence of the chemolithoautotrophic nitrite-oxidizing bacterium Nitrobacter winogradskyi Nb-255." Starkenburg S.R., Chain P.S.G., Sayavedra-Soto L.A., Hauser L., Land M.L., Larimer F.W., Malfatti S.A., Klotz M.G., Bottomley P.J., Arp D.J., Hickey W.J. Appl. Environ. Microbiol. 72:2050-2063(2006) [PubMed: 16517654] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Nb-255 / ATCC 25391.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000115 Genomic DNA. Translation: ABA03374.1.
RefSeq	YP_316726.1. NC_007406.1.
3D structure databases
ProteinModelPortal	Q3SWG7.
ModBase	Search...
Protein-protein interaction databases
STRING	Q3SWG7.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	3674306.
GenomeReviews	Gene locus Nwi_0106 in contig CP000115_GR.
KEGG	nwi:Nwi_0106.
NMPDR	fig|323098.3.peg.495.
PATRIC	22696529. VBINitWin102302_0120.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG1952.
HOGENOM	HBG294212.
OMA	GFPPLMI.
PhylomeDB	Q3SWG7.
ProtClustDB	PRK05751.
Enzyme and pathway databases
BioCyc	NWIN323098:NWI_0106-MONOMER.
Family and domain databases
HAMAP	MF_00821. SecB. [Tree]
InterPro	IPR003708. SecB. [Graphical view]
Gene3D	G3DSA:3.10.420.10. SecB. 1 hit.
KO	K03071.
Pfam	PF02556. SecB. 1 hit. [Graphical view]
PRINTS	PR01594. SECBCHAPRONE.
SUPFAM	SSF54611. SecB. 1 hit.
TIGRFAMs	TIGR00809. SecB. 1 hit.
ProtoNet	Search...

Entry information

Entry name

SECB_NITWN

Accession

Primary (citable) accession number: Q3SWG7

Entry history

Integrated into UniProtKB/Swiss-Prot:	February 5, 2008
Last sequence update:	October 11, 2005
Last modified:	January 25, 2012
This is version 42 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program