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Protein

Minor curlin subunit

Gene

csgB

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at transcript leveli

Functioni

Curlin is the structural subunit of the curli fimbriae. Curli are coiled surface structures that assemble preferentially at growth temperatures below 37 degrees Celsius. Curli can bind to fibronectin. The minor subunit is the nucleation component of curlin monomers.

GO - Biological processi

  • amyloid fibril formation Source: EcoCyc
  • cell adhesion Source: EcoCyc
  • single-species biofilm formation Source: EcoCyc
Complete GO annotation...

Enzyme and pathway databases

BioCyciEcoCyc:G6547-MONOMER.
ECOL316407:JW1024-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Minor curlin subunit
Gene namesi
Name:csgB
Ordered Locus Names:b1041, JW1024
OrganismiEscherichia coli (strain K12)
Taxonomic identifieri83333 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeEscherichia
Proteomesi
  • UP000000318 Componenti: Chromosome
  • UP000000625 Componenti: Chromosome

Organism-specific databases

EcoGeneiEG12621. csgB.

Subcellular locationi

  • Fimbrium

  • Note: Part of the curli surface structure.

GO - Cellular componenti

  • cell outer membrane Source: EcoCyc
  • pilus Source: EcoCyc
Complete GO annotation...

Keywords - Cellular componenti

Fimbrium

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 2121Sequence analysisAdd
BLAST
Chaini22 – 151130Minor curlin subunitPRO_0000006374Add
BLAST

Proteomic databases

PaxDbiP0ABK7.
PRIDEiP0ABK7.

Expressioni

Inductioni

Under control of the CsgD transcription factor, part of the csgBAC/ymdA operon.1 Publication

Interactioni

Protein-protein interaction databases

BioGridi4259358. 11 interactions.
DIPiDIP-46504N.
STRINGi511145.b1041.

Structurei

3D structure databases

ProteinModelPortaliP0ABK7.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the CsgA/CsgB family.Curated

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiENOG4108U0V. Bacteria.
ENOG4111G8B. LUCA.
HOGENOMiHOG000118940.
InParanoidiP0ABK7.
KOiK04335.
OMAiINIVQGR.
PhylomeDBiP0ABK7.

Family and domain databases

InterProiIPR009742. Curlin_rpt.
[Graphical view]
PfamiPF07012. Curlin_rpt. 3 hits.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P0ABK7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKNKLLFMML TILGAPGIAA AAGYDLANSE YNFAVNELSK SSFNQAAIIG
60 70 80 90 100
QAGTNNSAQL RQGGSKLLAV VAQEGSSNRA KIDQTGDYNL AYIDQAGSAN
110 120 130 140 150
DASISQGAYG NTAMIIQKGS GNKANITQYG TQKTAIVVQR QSQMAIRVTQ

R
Length:151
Mass (Da):15,882
Last modified:November 8, 2005 - v1
Checksum:iB18D266B964014B8
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X90754 Genomic DNA. Translation: CAA62281.1.
U00096 Genomic DNA. Translation: AAC74125.1.
AP009048 Genomic DNA. Translation: BAA35831.1.
PIRiS70787.
RefSeqiNP_415559.1. NC_000913.3.
WP_000791650.1. NZ_LN832404.1.

Genome annotation databases

EnsemblBacteriaiAAC74125; AAC74125; b1041.
BAA35831; BAA35831; BAA35831.
GeneIDi947391.
KEGGiecj:JW1024.
eco:b1041.
PATRICi32117319. VBIEscCol129921_1082.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X90754 Genomic DNA. Translation: CAA62281.1.
U00096 Genomic DNA. Translation: AAC74125.1.
AP009048 Genomic DNA. Translation: BAA35831.1.
PIRiS70787.
RefSeqiNP_415559.1. NC_000913.3.
WP_000791650.1. NZ_LN832404.1.

3D structure databases

ProteinModelPortaliP0ABK7.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi4259358. 11 interactions.
DIPiDIP-46504N.
STRINGi511145.b1041.

Proteomic databases

PaxDbiP0ABK7.
PRIDEiP0ABK7.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAC74125; AAC74125; b1041.
BAA35831; BAA35831; BAA35831.
GeneIDi947391.
KEGGiecj:JW1024.
eco:b1041.
PATRICi32117319. VBIEscCol129921_1082.

Organism-specific databases

EchoBASEiEB2505.
EcoGeneiEG12621. csgB.

Phylogenomic databases

eggNOGiENOG4108U0V. Bacteria.
ENOG4111G8B. LUCA.
HOGENOMiHOG000118940.
InParanoidiP0ABK7.
KOiK04335.
OMAiINIVQGR.
PhylomeDBiP0ABK7.

Enzyme and pathway databases

BioCyciEcoCyc:G6547-MONOMER.
ECOL316407:JW1024-MONOMER.

Miscellaneous databases

PROiP0ABK7.

Family and domain databases

InterProiIPR009742. Curlin_rpt.
[Graphical view]
PfamiPF07012. Curlin_rpt. 3 hits.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiCSGB_ECOLI
AccessioniPrimary (citable) accession number: P0ABK7
Secondary accession number(s): P39828
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 8, 2005
Last sequence update: November 8, 2005
Last modified: September 7, 2016
This is version 72 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.