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Gene |

Product(s) |

Expression|

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Standard Name	napG
Gene Synonym(s)	ECK2197, b2205, JW2193, yojA, yojB^[1], yojB
Product Desc.	ferredoxin-type protein^[2]^[3]; Component of NapGH, alternative quinol dehydrogenase^[3]; periplasmic nitrate reductase^[2]^[3] Quinol dehydrogenase, periplasmic protein; mediates electron transfer from ubiquinol/naphthoquinone to NapAB, via NapC; non-haem, iron-sulphur protein^[4]
Product Synonyms(s)	ferredoxin-type protein essential for electron transfer from ubiquinol to periplasmic nitrate reductase (NapAB)^[1], B2205^[2]^[1], YojB^[2]^[1], YojA^[2]^[1], NapG^[2]^[1] , ECK2197, JW2193, yojA, yojB, b2205
Function from GO	<GO_nr />
Knock-Out Phenotype
Regulation/Expression	transcription unit(s): napFDAGHBC^[2], napFDAGHBC-ccmABCDEFGH^[2], aeg-46.5
Regulation/Activity
Quick Links
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Notes

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NapG is not required for menaquinol transfer (Brondijk, 2002, 2004). Verified Tat substrate: NapG has a Tat-only (Class I) predicted 41 aa signal peptide (Brondijk, 2004; Tullman-Ercek, 2007).^[4]

Gene

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Nomenclature

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See Help:Gene_nomenclature for help with entering information in the Gene Nomenclature table.

Standard name	napG
Mnemonic	NitrAte reductase, periplasmic
Synonyms	ECK2197, b2205, JW2193, yojA, yojB^[1], yojB
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Notes

Location(s) and DNA Sequence

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<protect> See Help:Gene_location for help entering information in the Gene Location and DNA sequence table.

Strain	Map location	Genome coordinates	Genome browsers	Sequence links
MG1655	49.52 minutes	MG1655: 2298282..2297587 <gbrowseImage> name=NC_000913:2297587..2298282 source=MG1655 preset=GeneLocation </gbrowseImage>	EcoCyc GBrowse(MG1655)	FASTA Dump EcoCyc Sequence Dump
REL606		NC_012967: 2250249..2249554 <gbrowseImage> name=NC_012967:2249554..2250249 source=REL606 preset=GeneLocation </gbrowseImage>	GBrowse (REL606)	FASTA Dump
BW2952		NC_012759: 2183392..2184087 <gbrowseImage> name=NC_012759:2183392..2184087 source=BW2952 preset=GeneLocation </gbrowseImage>	GBrowse (BW2952)	FASTA Dump
W3110		W3110: 2303594..2302899 <gbrowseImage> name=NC_007779:2302899..2303594 source=W3110 preset=GeneLocation </gbrowseImage>	GBrowse(W3110)	FASTA Dump
DH10B		DH10B: 2389270..2388575 <gbrowseImage> name=NC_010473:2388575..2389270 source=DH10B preset=GeneLocation </gbrowseImage>	GBrowse(DH10B)	FASTA Dump
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Notes

Sequence Features

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See Help:Gene_sequence_features for help in entering sequence features in EcoliWiki.

Feature Type	Strain	Genomic Location	Evidence	Reference	Notes
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Notes

Alleles and Phenotypes

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See Help:Gene_alleles for how to enter or edit alleles and phenotypes in EcoliWiki.

Allele	Nt change(s)	AA change(s)	Reference	Availability	Comments
ΔnapG (Keio:JW2193)	deletion	deletion	PMID:16738554	Shigen CGSC9773^[5]
napG::Tn5KAN-2 (FB20700)	Insertion at nt 647 in Minus orientation		PMID:15262929	E. coli Genome Project:FB20700	does not contain pKD46
napG::Tn5KAN-2 (FB20701)	Insertion at nt 647 in Minus orientation		PMID:15262929	E. coli Genome Project:FB20701	contains pKD46
ΔnapG758::kan			PMID:16738554	CGSC:102018
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Notes

Genetic Interactions

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Interactor	Interaction	Allele	Score(s)	Reference(s)	Accessions	Notes
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Notes

Genetic Resources

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See Help:Gene_resources for help entering information into the Genetic Resources table.

Resource	Resource Type	Source	Notes/Reference
JW2193	Plasmid clone	Shigen	PMID:16769691 Status:Clone OK Primer 1:GCCTCCCGGTCAGCGAAACCTCA Primer 2:CCtGATTTGCCATTGTTCCCCTC
20F6	Kohara Phage	Genobase	PMID:3038334
19D1	Kohara Phage	Genobase	PMID:3038334
22A6	Kohara Phage	Genobase	PMID:3038334
zbd-3104::Tn10	Linked marker	CAG12021 = CGSC7344^[5]	est. P1 cotransduction: % ^[6] Synonyms:zbc-3105::Tn10, zbd-3105::Tn10
napA722::Tn10	Linked marker	CAG12098 = CGSC7400^[5]	est. P1 cotransduction: 89% ^[6] Synonyms:zeg-722, zei-722::Tn10
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Notes

Accessions in Other Databases

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See Help:Gene_accessions for help with entering information into the Gene Accessions table.

Database	Accession	Notes
EcoCyc	EcoCyc:EG12064	Escherichia coli str. K-12 substr. MG1655
EcoGene	EcoGene:EG12064	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120001975	Escherichia coli str. K-12 substr. MG1655
NCBI (EcoliWiki Page)	GeneID:945544	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB1993	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0007287	Escherichia coli str. K-12 substr. MG1655
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Notes

Links

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Name	URL	Comments
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Product(s)

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Nomenclature

See Help:Product_nomenclature for help entering or editing information in this section of EcoliWiki.

Standard name	NapG
Synonyms	ferredoxin-type protein essential for electron transfer from ubiquinol to periplasmic nitrate reductase (NapAB)^[1], B2205^[2]^[1], YojB^[2]^[1], YojA^[2]^[1], NapG^[2]^[1] , ECK2197, JW2193, yojA, yojB, b2205
Product description	ferredoxin-type protein^[2]^[3]; Component of NapGH, alternative quinol dehydrogenase^[3]; periplasmic nitrate reductase^[2]^[3] Quinol dehydrogenase, periplasmic protein; mediates electron transfer from ubiquinol/naphthoquinone to NapAB, via NapC; non-haem, iron-sulphur protein^[4]
EC number (for enzymes)
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Notes

Function

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<protect> Gene Ontology
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:0005506	iron ion binding	GOA:spkw SP_KW:GO_REF:0000004	IEA: Inferred from Electronic Annotation	SP_KW:KW-0408	F	Seeded from EcoCyc (v14.0)	complete
	GO:0006810	transport	GOA:spkw SP_KW:GO_REF:0000004	IEA: Inferred from Electronic Annotation	SP_KW:KW-0813	P	Seeded from EcoCyc (v14.0)	complete
	GO:0009055	electron carrier activity	GOA:interpro GO_REF:0000002	IEA: Inferred from Electronic Annotation	InterPro:IPR017900	F	Seeded from EcoCyc (v14.0)	complete
	GO:0022900	electron transport chain	GOA:spkw SP_KW:GO_REF:0000004	IEA: Inferred from Electronic Annotation	SP_KW:KW-0249	P	Seeded from EcoCyc (v14.0)	complete
	GO:0046872	metal ion binding	GOA:spkw SP_KW:GO_REF:0000004	IEA: Inferred from Electronic Annotation	SP_KW:KW-0479	F	Seeded from EcoCyc (v14.0)	complete
	GO:0051536	iron-sulfur cluster binding	GOA:interpro GO_REF:0000002	IEA: Inferred from Electronic Annotation	InterPro:IPR017900	F	Seeded from EcoCyc (v14.0)	complete
	GO:0051536	iron-sulfur cluster binding	GOA:spkw SP_KW:GO_REF:0000004	IEA: Inferred from Electronic Annotation	SP_KW:KW-0411	F	Seeded from EcoCyc (v14.0)	complete
	GO:0051539	4 iron, 4 sulfur cluster binding	GOA:spkw SP_KW:GO_REF:0000004	IEA: Inferred from Electronic Annotation	SP_KW:KW-0004	F	Seeded from EcoCyc (v14.0)	complete
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Interactions See Help:Product_interactions for help entering or editing information about gene product interactions in this section of EcoliWiki.

Partner Type	Partner	Notes
Protein	Subunits of NapGH, alternative quinol dehydrogenase	could be indirect
Protein	Subunits of periplasmic nitrate reductase	could be indirect
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Notes

Localization

See Help:Product_localization for how to add or edit information in this section of EcoliWiki.

Compartment	Evidence	Reference/Source
periplasm
Periplasm	PMID:11967083	EchoLocation:napG
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Notes

Structure and Physical Properties

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

Name
Sequence	at EcoCyc MSRSAKPQNG RRRFLRDVVR TAGGLAAVGV ALGLQQQTAR ASGVRLRPPG AINENAFASA CVRCGQCVQA CPYDTLKLAT LASGLSAGTP YFVARDIPCE MCEDIPCAKV CPSGALDREI ESIDDARMGL AVLVDQENCL NFQGLRCDVC YRECPKIDEA ITLELERNTR TGKHARFLPT VHSDACTGCG KCEKVCVLEQ PAIKVLPLSL AKGELGHHYR FGWLEGNNGK S
Length	231
Mol. Wt	24.923 kDa
pI	8.0 (calculated)
Extinction coefficient	11,460 - 13,460 (calc based on 4 Y, 1 W, and 16 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
motif	1-41	UniProt Manual:Signal Peptides	UniProt:P0AAL3
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<motif_map/>

Structure
See Help:Product_structure for help entering or editing information in this section of EcoliWiki.

Structures

<beststructure> gene=napG taxon=562,83333 </beststructure>

Models

View models at:

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Structure figures

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Notes

Gene Product Resources

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See Help:Product_resources for help with entering or editing information in this section of EcoliWiki.

Resource type	Source	Notes/Reference
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Notes

Accessions in Other Databases

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See Help:Gene_accessions for help with entering information into the Gene Accessions table.

Database	Accession	Notes
NCBI (Protein) (EcoliWiki Page)	GI:16130142	Escherichia coli str. K-12 substr. MG1655
NCBI (Protein) (EcoliWiki Page)	GeneID:945544	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0007287	Escherichia coli str. K-12 substr. MG1655
UniProt (EcoliWiki Page)	UniProtKB/Swiss-Prot:P0AAL3	Escherichia coli str. K-12 substr. MG1655
EcoCyc	EcoCyc:EG12064	Escherichia coli str. K-12 substr. MG1655
EcoGene	EcoGene:EG12064	Escherichia coli str. K-12 substr. MG1655
NCBI (Gene) (EcoliWiki Page)	GeneID:945544	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120001975	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB1993	Escherichia coli str. K-12 substr. MG1655
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Notes

Links

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Name	URL	Comments
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Expression

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Overview

This is a placeholder for a summary statement on how expression of this gene product is regulated. You can help EcoliWiki by becoming a user and writing/editing this statement.

Cellular Levels

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See Help:Cellular levels

Molecule	Organism or Strain	Value	Units	Experimental Conditions	Assay used	Notes	Reference(s)
Protein	E. coli K-12 MG1655	22	molecules/cell/generation	Medium: MOPS Complete Temperature (°C): 37 Doubling time (min): *Growth phase: OD: other:	Ribosome Profiling		PMID: 24766808
Protein	E. coli K-12 MG1655	8	molecules/cell/generation	Medium: MOPS Minimal Temperature (°C): 37 Doubling time (min): *Growth phase: OD: other:	Ribosome Profiling		PMID: 24766808
Protein	E. coli K-12 MG1655	3^a	molecules/cell/generation	Medium: MOPS Complete without Methionine Temperature (°C): 37 Doubling time (min): *Growth phase: OD: other:	Ribosome Profiling	Low confidence in the sequencing data set.	PMID: 24766808
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Notes

Transcription and Transcriptional Regulation

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See Help:Expression_transcription for help entering or editing information in this section of EcoliWiki.

Transcription unit(s)
napFDAGHBC
napFDAGHBC-ccmABCDEFGH
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Figure courtesy of RegulonDB

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Notes

This is a placeholder for a summary statement about how transcription of this gene is regulated. You can help EcoliWiki by becoming a user and writing/editing this statement.

Translation and Regulation of Translation

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<protect><gbrowseImage> name=NC_000913:2298262..2298302 source=MG1655 flip=1 type=Gene+DNA_+Protein preset=Nterminus </gbrowseImage> This picture shows the sequence around the N-terminus.

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Notes

This is a placeholder for a summary statement about how translation of this gene product is regulated. You can help EcoliWiki by becoming a user and writing/editing this statement.

Turnover and Regulation of Turnover

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Notes

This is a placeholder for a summary statement about turnover of this gene product. You can help EcoliWiki by becoming a user and writing/editing this statement.

Experimental

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<protect> Mutations Affecting Expression See Help:Expression_mutations for help entering or editing information in this section of EcoliWiki.

Allele Name	Mutation	Phenotype	Reference
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Expression Studies See Help:Expression_studies for help entering or editing information in this section of EcoliWiki.

Type	Reference	Notes
microarray	GEO Profiles:b2205 (EcoliWiki Page)	NCBI GEO profiles for napG
microarray	GenExpDB:b2205 (EcoliWiki Page)	Summary of data for napG from multiple microarray studies
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Expression Resources See Help:Expression_resources for help entering or editing information in this section of EcoliWiki.

Resource Name	Resource Type	Description	Source	Notes
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Notes

Accessions Related to napG Expression

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See Help:Gene_accessions for help with entering information into the Gene Accessions table.

Database	Accession	Notes
EcoCyc	EcoCyc:EG12064	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB1993	Escherichia coli str. K-12 substr. MG1655
EcoliGenExpDB (EcoliWiki Page)	EcoliGenExpDB:b2205
EcoGene	EcoGene:EG12064	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120001975	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0007287	Escherichia coli str. K-12 substr. MG1655
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Notes

Links

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Name	URL	Comments
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Evolution

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Homologs in Other Organisms

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See Help:Evolution_homologs for help entering or editing information in this section of EcoliWiki.

Organism	Homologs (Statistics)	Comments
Shigella flexneri	NAPG	From SHIGELLACYC
E. coli O157	NAPG	From ECOO157CYC
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Do-It-Yourself Web Tools

Notes

Families

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See Help:Gene_accessions for help with entering information into the Gene Accessions table.

Database	Accession	Notes
Panther (EcoliWiki Page)	PTHR11938:SF66
Superfamily (EcoliWiki Page)	SUPERFAMILY:54862
EcoCyc	EcoCyc:EG12064	Escherichia coli str. K-12 substr. MG1655
EcoGene	EcoGene:EG12064	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120001975	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB1993	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0007287	Escherichia coli str. K-12 substr. MG1655
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Notes

Links

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Name	URL	Comments
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References

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See Help:References for how to manage references in EcoliWiki.

↑ ^1.00 ^1.01 ^1.02 ^1.03 ^1.04 ^1.05 ^1.06 ^1.07 ^1.08 ^1.09 ^1.10 ^1.11 Riley, M. et al. (2006) Nucleic Acids Res 34:1-6 (corrected supplemental data from B. Wanner)
↑ ^2.00 ^2.01 ^2.02 ^2.03 ^2.04 ^2.05 ^2.06 ^2.07 ^2.08 ^2.09 ^2.10 ^2.11 ^2.12 ^2.13 EcoCyc (release 10.6; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
↑ ^3.0 ^3.1 ^3.2 ^3.3 ^3.4 ^3.5 EcoCyc (release 11.1; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
↑ ^4.0 ^4.1 ^4.2 EcoGene: Rudd, KE (2000) EcoGene: a genome sequence database for Escherichia coli K-12. Nucleic Acids Res 28:60-4.
↑ ^5.0 ^5.1 ^5.2 CGSC: The Coli Genetics Stock Center
↑ ^6.0 ^6.1 The Tn10 insertion sites determined by Nichols et al. 1998 (PMID:9829956) were reannotated by alignment with E. coli K-12 genome sequence (GenBank accession NC_000913). P1 contransduction frequencies were calculated using the formula of Wu (PMID:5338813).

napG:On One Page

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Gene

Nomenclature

Notes

Location(s) and DNA Sequence

Notes

Sequence Features

Notes

Alleles and Phenotypes

Notes

Genetic Interactions

Notes

Genetic Resources

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Accessions in Other Databases

Notes

Links

Product(s)

Nomenclature

Notes

Function

Notes

Localization

Notes

Structure and Physical Properties

Structure figures

Notes

Gene Product Resources

Notes

Accessions in Other Databases

Notes

Links

Expression

Overview

Cellular Levels

Notes

Transcription and Transcriptional Regulation

Notes

Translation and Regulation of Translation

Notes

Turnover and Regulation of Turnover

Notes

Experimental

Notes

Accessions Related to napG Expression

Notes

Links

Evolution

Homologs in Other Organisms

Do-It-Yourself Web Tools

Notes

Families

Notes

Links

References

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