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spoIIQ spoIIQ spoVT spoVT rpoB rpoB sigG sigG spoVM spoVM cotE cotE spoIVA spoIVA fer fer spoVAD spoVAD sigF sigF spo0A spo0A spoIIIAH spoIIIAH spoIIIAG spoIIIAG spoIIIAA spoIIIAA spoVID spoVID sspA sspA lytH lytH
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
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proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
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experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
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textmining
co-expression
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spoIIQForespore protein required for alternative engulfment; Involved in forespore engulfment and required for anchoring membrane proteins on the forespore side of the septal membrane. Forms a channel with SpoIIIAH that is open on the forespore end and closed (or gated) on the mother cell end. This allows sigma-E-directed gene expression in the mother-cell compartment of the sporangium to trigger the activation of sigma-G forespore-specific gene expression by a pathway of intercellular signaling. (283 aa)
spoVTTranscriptional regulator; Transcriptional factor that regulates positively or negatively the expression of a large number of forespore-specific sigma G-dependent genes. May provide a mechanism of feedback control that is important for forespore development. SpoVT levels during spore formation have a major impact on the germination and the resistance of the resultant spores. To B.subtilis AbrB and Abh. (178 aa)
rpoBRNA polymerase (beta subunit); DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. (1193 aa)
sigGRNA polymerase sporulation-specific sigma factor (sigma-G); Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is responsible for the expression of sporulation specific genes in the forespore. (260 aa)
spoVMFactor required for normal spore cortex and coat synthesis (stage V sporulation); Coordinates cortex and coat assembly during sporulation. Associates with the spore coat protein SpoIVA and with the outer forespore membrane, thereby serving as a membrane anchor that tethers SpoIVA and the entire spore coat to the forespore surface. May also serve as a competitive inhibitor of FtsH activity during sporulation. (26 aa)
cotEMorphogenic spore protein; Morphogenic protein required for the assembly of the outer coat of the endospore. Is also a regulatory protein for the expression of cotA, cotB, cotC, cotH and other genes encoding spore outer coat proteins. (181 aa)
spoIVAMorphogenetic stage IV sporulation protein; ATPase. Has a role at an early stage in the morphogenesis of the spore coat outer layers. Its ATP hydrolysis is required for proper assembly of the spore coat. Forms a basement layer around the outside surface of the forespore and self-assembles irreversibly into higher order structures by binding and hydrolyzing ATP thus creating a durable and stable platform upon which thereafter morphogenesis of the coat can take place. Required for proper localization of spore coat protein CotE and sporulation-specific proteins including SpoVM. (492 aa)
ferFerredoxin; Ferredoxins are iron-sulfur proteins that transfer electrons in a wide variety of metabolic reactions. This ferredoxin may act as a phosphodonor to cytochrome P450 BioI. (82 aa)
spoVADStage V sporulation protein AD; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type cp: cell process. (338 aa)
sigFRNA polymerase sporulation-specific sigma factor (sigma-F); Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This sigma factor is responsible for the expression of sporulation specific genes. Interaction with SpoIIAB inhibits sigma-F activity throughout the cell before the formation of the asymmetric septum; after septation the interaction is confined to the mother cell, and sigma F activity is released in the prespore. Responsible for expression of csfB (the anti-sigma-G factor Gin). (255 aa)
spo0AResponse regulator; May play the central regulatory role in sporulation. It may be an element of the effector pathway responsible for the activation of sporulation genes in response to nutritional stress. Spo0A may act in concert with Spo0H (a sigma factor) to control the expression of some genes that are critical to the sporulation process. Repressor of abrB, activator of the spoIIa operon. Binds the DNA sequence 5'-TGNCGAA-3' (0A box). (267 aa)
spoIIIAHStage III sporulation ratchet engulfment protein; Involved in forespore engulfment. Forms a channel with SpoIIIAH that is open on the forespore end and closed (or gated) on the mother cell end. This allows sigma-E-directed gene expression in the mother-cell compartment of the sporangium to trigger the activation of sigma-G forespore-specific gene expression by a pathway of intercellular signaling. (218 aa)
spoIIIAGStage III sporulation engulfment assembly protein; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type cp: cell process. (229 aa)
spoIIIAAATP-binding stage III sporulation protein; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type cp: cell process. (307 aa)
spoVIDMorphogenetic spore protein (stage VI sporulation); Required for assembly of a normal spore coat. May be a component of the innermost layer of the spore coat that aids in its adherence to the prespore. (575 aa)
sspASmall acid-soluble spore protein (alpha-type SASP); SASP are bound to spore DNA. They are double-stranded DNA- binding proteins that cause DNA to change to an a-like conformation. They protect the DNA backbone from chemical and enzymatic cleavage and are thus involved in dormant spore's high resistance to UV light. (69 aa)
lytHSporulation-specific L-Ala-D-Glu endopeptidase; L-Ala--D-Glu endopeptidase involved in production of single L-alanine side chains from tetrapeptides in the spore cortex peptidoglycan. Therefore, is required for the endospore cortex maturation. (326 aa)
Your Current Organism:
Bacillus subtilis 168
NCBI taxonomy Id: 224308
Other names: B. subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis 168, Bacillus subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis str. BGSC 1A700
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