Phage f1 III:Gene Product(s)

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Gene

Gene Product(s)

Expression

Evolution

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Nomenclature

Function

Interactions

Localization

Sequence

Domains

Structure

Resources

Accessions

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References

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Nomenclature

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Standard name	attachment protein G3P
Synonyms	III, protein III , unnamed protein product , Gene 3 protein , G3P , minor coat protein , A protein
Product description	adsorption protein, required for phage to be infectious ; necessary to terminate assembly/extrusion of new phage and release completed phage
EC number (for enzymes)
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Function

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Gene Ontology <protect> See Help:Gene_ontology for help entering or editing GO terms and GO annotations in EcoliWiki.

Qualifier	GO ID	GO term name	Reference	Evidence Code	with/from	Aspect	Notes	Status
	GO:0046753	non-lytic viral release	PMID:9733639	IMP: Inferred from Mutant Phenotype		P		complete
	GO:0045203	integral to membrane	PMID:6291030	IDA: Inferred from Direct Assay		C		complete
	GO:0019013	viral nucleocapsid	PMID:7000776	IDA: Inferred from Direct Assay		C		complete
	GO:0019028	viral capsid	PMID:7000776	IDA: Inferred from Direct Assay		C		complete
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Interactions

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Partner Type	Partner	Notes	References	Evidence
Protein	Phage f1, VIII: Gene Products	Association likely exists prior to assembly	PMID:7616570	IPI by co-precipitation; See Figure 9A, lanes 2 to 6, and Figure 9B, lane 4
Protein	Phage f1, VI: Gene Products	G3P stabilizes G6P	PMID:9733639	Figure 2B shows the amount of pVI depends on the amount of pIII supplied; pVI is nearly absent without pIII.
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Localization

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Compartment	Description	Evidence	Reference/Source	Notes
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Structure and Physical Properties

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Physical Properties <protect> See Help:Product_physical_properties for help entering or editing information about the physical properties of this gene product.

Name
Sequence	MKKLLFAIPL VVPFYSHSAE TVESCLAKPH TENSFTNVWK DDKTLDRYAN YEGCLWNATG VVVCTGDETQ CYGTWVPIGL AIPENEGGGS EGGGSEGGGS EGGGTKPPEY GDTPIPGYTY INPLDGTYPP GTEQNPANPN PSLEESQPLN TFMFQNNRFR NRQGALTVYT GTVTQGTDPV KTYYQYTPVS SKAMYDAYWN GKFRDCAFHS GFNEDPFVCE YQGQSSDLPQ PPVNAGGGSG GGSGGGSEGG GSEGGGSEGG GSEGGGSGGG SGSGDFDYEK MANANKGAMT ENADENALQS DAKGKLDSVA TDYGAAIDGF IGDVSGLANG NGATGDFAGS NSQMAQVGDG DNSPLMNNFR QYLPSLPQSV ECRPFVFGAG KPYEFSIDCD KINLFRGVFA FLLYVATFMY VFSTFANILR NKES
Length	424
Mol. Wt	44.621 kDa
pI	4.2 (calculated)
Extinction coefficient	53,290 - 54,290 (calc based on 21 Y, 4 W, and 8 C residues)
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Domains/Motifs/Modification Sites

See Help:Product_domains_motifs for help entering or editing information in this section of EcoliWiki. Type Residues Description Notes References Domain 379-401 COOH terminus Highest average hydrophibicity of any other G3P domain Arg residues flank the 23 neutral residues Required to anchor G3P in membrane PMID:6291030 edit table

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Structure See Help:Product_structure for help entering or editing information in this section of EcoliWiki. Structures <beststructure> gene=Phage_f1_III taxon=10863 </beststructure> Models View models at: Protein Model Portal PSI-PRED Genomes TO Protein (GTOP) edit table

</protect> Structure figures Notes Gene Product Resources [back to top] See Help:Product_resources for help with entering or editing information in this section of EcoliWiki. Resource type Source Notes/Reference edit table Notes Accessions in Other Databases [back to top] See Help:Gene_accessions for help with entering information into the Gene Accessions table. Database Accession Notes edit table Notes Links [back to top] Name URL Comments edit table References [back to top] See Help:References for how to manage references in EcoliWiki. Categories [back to top]