Q9A224 (SECB_CAUCR) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Protein-export protein secB

Gene names

Name:	secB
Ordered Locus Names:	CC_3742

Organism

Caulobacter crescentus (Caulobacter vibrioides)

Taxonomic identifier

155892 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Caulobacterales › Caulobacteraceae › Caulobacter

Protein attributes

Sequence length	163 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 Reference 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 – 163	163	Protein-export protein secB HAMAP MF_00821		PRO_0000055360

Sequences

	Sequence		Length	Mass (Da)
	Q9A224 [UniParc]. Last modified June 1, 2001. Version 1. Checksum: 31485BB75C676836	FASTA	163	17,458
	10 20 30 40 50 60 MTDTIAPEAT PEGAEAGQAG IRILAQFVRD FSFENPLAPD ALRAGAAQPA IDMGVEMNAR 70 80 90 100 110 120 GRADGLFEVD LKLSARAERE GQAVFHVEVV YGGLFHIAGI AEEDLEPVLL IECPRFLFPY 130 140 150 160 ARRLISDVTA EGGFPPFLID PIDFAGVYAA RKAQAEGQQV GNA

References

[1]

"Complete genome sequence of Caulobacter crescentus." Nierman W.C., Feldblyum T.V., Laub M.T., Paulsen I.T., Nelson K.E., Eisen J.A., Heidelberg J.F., Alley M.R.K., Ohta N., Maddock J.R., Potocka I., Nelson W.C., Newton A., Stephens C., Phadke N.D., Ely B., DeBoy R.T., Dodson R.J. , Durkin A.S., Gwinn M.L., Haft D.H., Kolonay J.F., Smit J., Craven M.B., Khouri H.M., Shetty J., Berry K.J., Utterback T.R., Tran K., Wolf A.M., Vamathevan J.J., Ermolaeva M.D., White O., Salzberg S.L., Venter J.C., Shapiro L., Fraser C.M. Proc. Natl. Acad. Sci. U.S.A. 98:4136-4141(2001) [PubMed: 11259647] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 19089 / CB15.

+

Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE005673 Genomic DNA. Translation: AAK25704.1.
PIR	D87713.
RefSeq	NP_422536.1. NC_002696.2.
3D structure databases
ProteinModelPortal	Q9A224.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	940597.
GenomeReviews	Gene locus CC_3742 in contig AE005673_GR.
KEGG	ccr:CC_3742.
NMPDR	fig|190650.1.peg.3716.
PATRIC	21304522. VBICauCre124313_3744.
TIGR	CC_3742.
Phylogenomic databases
HOGENOM	HBG294212.
OMA	GFPPLMI.
ProtClustDB	CLSK891684.
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_CAUCR

Accession

Primary (citable) accession number: Q9A224

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 20, 2005
Last sequence update:	June 1, 2001
Last modified:	January 25, 2012
This is version 53 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program