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UniProtKB - Q9KYG7 (CHPF_STRCO)

Entry version 67 (07 Apr 2021)
Sequence version 1 (01 Oct 2000)
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Protein

Chaplin-F

Gene

chpF

Organism
Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

One of 8 partially redundant surface-active proteins required for efficient formation of aerial mycelium; the short chaplins assemble into a hydrophobic, amyloidal fibrillar surface layer that envelopes and protects aerial hyphae and spores, presumably anchored to the long chaplins (PubMed:12832396, PubMed:12832397, PubMed:15228525, PubMed:17462011). Chaplins have an overlapping function with the surface-active SapB peptide; chaplins are essential on minimal medium while on rich medium both chaplins and SapB are required for efficient aerial hyphae formation (PubMed:17462011). Chaplins are also involved in cell attachment to a hydrophobic surface (PubMed:19682261). Forms amyloid fibrils in vitro probably composed of stacked beta-sheets, at low extracellular concentrations individually restores the ability to form aerial hyphae to a chaplin-deficient strain (PubMed:21526199). A small chaplin extract (ChpD, ChpE, ChpF, ChpG and ChpH) self-assembles into 2 different amyloids; small fibrils at the air-water interface form an amiphipathic membrane that resembles spore-surface structures involved in aerial hyphae formation, and hydrophilic fibrils in solution that resemble the fibers that attach cells to a hydrophobic surface. At the air-water interface the hydrophilic surface is in contact with water (probably equivalent to the peptidoglycan layer), while the hydrophobic face is exposed to the air, making the surface of the aerial hyphae hydrophobic (PubMed:24012833). A small chaplin extract applied to a chaplin-deficient strain restores aerial hyphae formation (PubMed:12832396, PubMed:12832397). The small chaplin extract forms an amyloid-like structure similar to that seen on the surface of cells without rodlets (rdlA-rdlB deletions), and is highly surface active, reducing surface tension from 72 to 26 mJ/m2, which probably allows escape of hyphae from an aqueous environment into air (PubMed:12832396). ChpF alone is less surface active at pH 3.0 than at pH 10.0, it reduces the surface tension of water from 72.8 mN/m to 50 mN/m at pH 3.0 or to 37 mN/m at pH 10.0 (PubMed:28925983). ChpF and ChpG are sufficient to restore the rodlet layer and hydrophobicity to a strain deleted for the other 6 chaplin genes (PubMed:15228525).8 Publications

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Biological processCell adhesion

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Chaplin-F1 Publication
Alternative name(s):
Chaplin-G1 Publication
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:chpF1 Publication
Synonyms:chpG1 Publication
Ordered Locus Names:SCO2705
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiStreptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri100226 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteria › Actinobacteria › Streptomycetales › Streptomycetaceae › Streptomyces › Streptomyces albidoflavus group ›
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000001973 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Keywords - Cellular componenti

Amyloid, Cell wall, Fimbrium, Secreted

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

<p>This subsection of the 'Pathology and Biotech' section describes the use of a specific protein in the biotechnological industry.<p><a href='/help/biotechnological_use' target='_top'>More...</a></p>Biotechnological usei

The small chaplin mixture (a cell wall extract of an rdlA-rdlB knockout) forms a stable coat on a number of surfaces (including Teflon and cotton) and emulsifies oil-water mixtures, which could be useful in medical and technical applications.1 Publication

<p>This subsection of the 'Pathology and Biotech' section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

A strain deleted of chpF and chpG makes rodlets (PubMed:15228525). Deletion of all 8 chaplin genes on minimal medium leads to severely disrupted aerial hyphae that collapse on the colony surface and are not hydrophobic. A few spore chains can still be made, but they have neither rodlets or amyloid-like fibers. rdlA and rdlB mRNA are down-regulated (PubMed:15228525, PubMed:17462011). Deletion of all 8 chaplin genes on rich medium leads to a reduced abundance of aerial hyphae without rodlets and occasional spore chains on surface hyphae. A complete chaplin-negative plus ram-negative strain (deletion of ramR or the ramC-ramS-ramA-ramB operon) leads to the complete loss of robust aerial hyphae (PubMed:17462011). Deletion of all 8 chaplin genes significantly reduces cellular attachment to a hydrophobic substrate; thin fibrils instead of fimbrae are detected. The long chaplins (ChpA, ChpB and ChpC, as seen by near wild-type attachment of the hextuple chpA-chpB-chpC-chpD-chpE-chpH knockout) are not essential but may contribute to attachment (PubMed:19682261).3 Publications

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 362 PublicationsAdd BLAST36
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_500432916937 – 88Chaplin-FAdd BLAST52

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi67 ↔ 851 Publication

Keywords - PTMi

Disulfide bond

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified 'at the protein level'.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

Present in aerial hyphae of sporulating cultures (at protein level).1 Publication1 Publication

<p>This subsection of the 'Expression' section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

Not expressed while still submerged, accumulates during aerial hyphae formation on minimal medium, no transcript detected during sporulation (PubMed:12832396). During aerial hyphae formation and early sporulation on rich medium, under control of ECF sigma factor BldN (PubMed:12832397). Expression depends on bldB but not bldA, bldD or bldH (at protein level) (PubMed:17462011).3 Publications

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer; disulfide linked. About 20% of ChpF isolated from cell wall forms disulfide-bonded homodimers.

1 Publication

Protein-protein interaction databases

STRING: functional protein association networks

More...STRINGi		100226.SCO2705

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini47 – 87ChaplinPROSITE-ProRule annotationAdd BLAST41

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The mature protein rapidly forms a predominantly amyloid fibril beta-sheet structure at pH 3.0 and 4.2, with less beta-sheet and more random coil at pH 10 (Probable) (PubMed:28925983). Reduced and non-reduced peptide have the same secondary structures at all pH tested, suggesting the disulfide bond is not required for fibril formation (PubMed:28925983).1 Publication1 Publication

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the chaplin family. Short chaplin subfamily.1 Publication

Keywords - Domaini

Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		ENOG50348JU, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_145456_3_1_11

Identification of Orthologs from Complete Genome Data

More...OMAi		KYTKVAA

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR005528, ChpA-H

Pfam protein domain database

More...Pfami		View protein in Pfam
PF03777, ChpA-C, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS51884, CHAPLIN, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

Q9KYG7-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MYNPKEHFSM SRIAKGLALT SVAAAAVAGT AGVAAADSGA QAAAAHSPGV 
        60         70         80 
LSGNVVQVPV HIPVNVCGNT IDVIGLLNPA FGNECEND
Length:88
Mass (Da):8,698
Last modified:October 1, 2000 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iD0AEB6579BD330D9
GO

<p>This subsection of the 'Sequence' section reports information derived from mass spectrometry experiments done on the entire protein or on biologically active derived peptide(s).<p><a href='/help/mass_spectrometry' target='_top'>More...</a></p>Mass spectrometryi

Molecular mass is 5182 Da. Determined by MALDI. 1 Publication
Molecular mass is 5177.48 Da. Determined by MALDI. 1 Publication

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
AL939113 Genomic DNA Translation: CAB92271.1

NCBI Reference Sequences

More...RefSeqi		NP_626939.1, NC_003888.3
WP_003976095.1, NC_003888.3

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...GeneIDi		1098139

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		sco:SCO2705

Pathosystems Resource Integration Center (PATRIC)

More...PATRICi		fig|100226.15.peg.2760

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL939113 Genomic DNA Translation: CAB92271.1
RefSeqiNP_626939.1, NC_003888.3
WP_003976095.1, NC_003888.3

3D structure databases

Database of comparative protein structure models

More...ModBasei		Search...

SWISS-MODEL Interactive Workspace

More...SWISS-MODEL-Workspacei		Submit a new modelling project...

Protein-protein interaction databases

STRINGi100226.SCO2705

Protocols and materials databases

The DNASU plasmid repository

More...DNASUi		1098139

Genome annotation databases

GeneIDi1098139
KEGGisco:SCO2705
PATRICifig|100226.15.peg.2760

Phylogenomic databases

eggNOGiENOG50348JU, Bacteria
HOGENOMiCLU_145456_3_1_11
OMAiKYTKVAA

Family and domain databases

InterProiView protein in InterPro
IPR005528, ChpA-H
PfamiView protein in Pfam
PF03777, ChpA-C, 1 hit
PROSITEiView protein in PROSITE
PS51884, CHAPLIN, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...ProtoNeti		Search...

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiCHPF_STRCO
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q9KYG7
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 10, 2018
Last sequence update: October 1, 2000
Last modified: April 7, 2021
This is version 67 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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