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Expression|

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Standard Name	mpaA
Gene Synonym(s)	ECK1322, b1326, JW1319, ycjI^[1], ycjI
Product Desc.	murein peptide amidase A^[2]^[3] Murein tripeptide hydrolysis, cleaves glutamyl-DAP bond; cytoplasmic enzyme probably responsible for the degardation of murein tripeptide that is not recycled^[4]
Product Synonyms(s)	murein peptide amidase A^[1], B1326^[2]^[1], YcjI^[2]^[1], MpaA^[2]^[1] , ECK1322, JW1319, ycjI, b1326
Function from GO	<GO_nr />
Knock-Out Phenotype
Regulation/Expression	transcription unit(s): mpaA^[2]
Regulation/Activity
Quick Links
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Notes

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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	mpaA
Mnemonic	Murein peptide amidase A
Synonyms	ECK1322, b1326, JW1319, ycjI^[1], ycjI
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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	29.91 minutes	MG1655: 1388682..1387894 <gbrowseImage> name=NC_000913:1387894..1388682 source=MG1655 preset=GeneLocation </gbrowseImage>	EcoCyc GBrowse(MG1655)	FASTA Dump EcoCyc Sequence Dump
REL606		NC_012967: 1388239..1389027 <gbrowseImage> name=NC_012967:1388239..1389027 source=REL606 preset=GeneLocation </gbrowseImage>	GBrowse (REL606)	FASTA Dump
BW2952		NC_012759: 1278743..1279531 <gbrowseImage> name=NC_012759:1278743..1279531 source=BW2952 preset=GeneLocation </gbrowseImage>	GBrowse (BW2952)	FASTA Dump
W3110		W3110: 1392372..1391584 <gbrowseImage> name=NC_007779:1391584..1392372 source=W3110 preset=GeneLocation </gbrowseImage>	GBrowse(W3110)	FASTA Dump
DH10B		DH10B: 1478078..1477290 <gbrowseImage> name=NC_010473:1477290..1478078 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
ΔmpaA (Keio:JW1319)	deletion	deletion	PMID:16738554	Shigen CGSC9182^[5]
ΔmpaA763::kan			PMID:16738554	CGSC:101932
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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
JW1319	Plasmid clone	Shigen	PMID:16769691 Status:Clone OK Primer 1:GCCATAATCCGCAAAATTTGCAC Primer 2:CCaGACGGGCGAATTGCATCTTT
3H8	Kohara Phage	Genobase	PMID:3038334
6B4	Kohara Phage	Genobase	PMID:3038334
zcj-233::Tn10	Linked marker	CAG12028 = CGSC7373^[5]	est. P1 cotransduction: 50% ^[6] Synonyms:zci-233::Tn10
recT3061::Tn10	Linked marker	CAG12081 = CGSC7375^[5]	est. P1 cotransduction: 43% ^[6] Synonyms:zcj-3061::Tn10, zda-3061::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:G6662	Escherichia coli str. K-12 substr. MG1655
EcoGene	EcoGene:EG13906	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120003257	Escherichia coli str. K-12 substr. MG1655
NCBI (EcoliWiki Page)	GeneID:945969	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB3665	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0004450	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	MpaA
Synonyms	murein peptide amidase A^[1], B1326^[2]^[1], YcjI^[2]^[1], MpaA^[2]^[1] , ECK1322, JW1319, ycjI, b1326
Product description	murein peptide amidase A^[2]^[3] Murein tripeptide hydrolysis, cleaves glutamyl-DAP bond; cytoplasmic enzyme probably responsible for the degardation of murein tripeptide that is not recycled^[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:0004181	metallocarboxypeptidase activity	GOA:interpro GO_REF:0000002	IEA: Inferred from Electronic Annotation	InterPro:IPR000834	F	Seeded from EcoCyc (v14.0)	complete
	GO:0006508	proteolysis	GOA:interpro GO_REF:0000002	IEA: Inferred from Electronic Annotation	InterPro:IPR000834	P	Seeded from EcoCyc (v14.0)	complete
	GO:0008270	zinc ion binding	GOA:interpro GO_REF:0000002	IEA: Inferred from Electronic Annotation	InterPro:IPR000834	F	Seeded from EcoCyc (v14.0)	complete
	GO:0004040	amidase activity	PMID:12511517	IGI: Inferred from Genetic Interaction	EcoliWiki:mpl	F		complete
	GO:0009253	peptidoglycan catabolic process	PMID:12511517	IGI: Inferred from Genetic Interaction	EcoliWiki:mpl	P		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	References	Evidence
Protein	gadW	PMID:16606699	Experiment(s):EBI-1139559
Protein	groL	PMID:16606699	Experiment(s):EBI-1139559
Protein	dnaK	PMID:16606699	Experiment(s):EBI-1139559
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Notes

Localization

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

Compartment	Description	Evidence	Reference/Source	Notes
cytoplasm			From EcoCyc^[3]
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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 MIIRKICTTL PVILPEPETI MTVTRPRAER GAFPPGTEHY GRSLLGAPLI WFPAPAASRE SGLILAGTHG DENSSVVTLS CALRTLTPSL RRHHVVLCVN PDGCQLGLRA NANGVDLNRN FPAANWKEGE TVYRWNSAAE ERDVVLLTGD KPGSEPETQA LCQLIHRIQP AWVVSFHDPL ACIEDPRHSE LGEWLAQAFE LPLVTSVGYE TPGSFGSWCA DLNLHCITAE FPPISSDEAS EKYLFAMANL LRWHPKDAIR PS
Length	262
Mol. Wt	28.82 kDa
pI	5.8 (calculated)
Extinction coefficient	44,460 - 45,460 (calc based on 4 Y, 7 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	35..205	PF00246 Zinc carboxypeptidase		PMID:19920124
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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=mpaA 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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Resource type	Source	Notes/Reference
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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:226524711	Escherichia coli str. K-12 substr. MG1655
NCBI (Protein) (EcoliWiki Page)	GeneID:945969	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0004450	Escherichia coli str. K-12 substr. MG1655
UniProt (EcoliWiki Page)	UniProtKB/Swiss-Prot:P0ACV6	Escherichia coli str. K-12 substr. MG1655
EcoCyc	EcoCyc:G6662	Escherichia coli str. K-12 substr. MG1655
EcoGene	EcoGene:EG13906	Escherichia coli str. K-12 substr. MG1655
NCBI (Gene) (EcoliWiki Page)	GeneID:945969	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120003257	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB3665	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	Reference(s)
Protein	E. coli K-12 MG1655	109	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	163	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	113	molecules/cell/generation	Medium: MOPS Complete without Methionine Temperature (°C): 37 Doubling time (min): *Growth phase: OD: other:	Ribosome Profiling	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)
mpaA
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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_000913:1388662..1388702 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:b1326 (EcoliWiki Page)	NCBI GEO profiles for mpaA
microarray	GenExpDB:b1326 (EcoliWiki Page)	Summary of data for mpaA 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
	GFP Fusion	Intergenic region (1388604..1389004) fused to gfpmut2.	OpenBioSystems	GFP fusion described in Zaslaver, et al. Plate:109-AZ17; Well:F4^[7]
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Notes

Accessions Related to mpaA Expression

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

Database	Accession	Notes
EcoCyc	EcoCyc:G6662	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB3665	Escherichia coli str. K-12 substr. MG1655
EcoliGenExpDB (EcoliWiki Page)	EcoliGenExpDB:b1326
EcoGene	EcoGene:EG13906	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120003257	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0004450	Escherichia coli str. K-12 substr. MG1655
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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	YCJI	From SHIGELLACYC
E. coli O157	YCJI	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
Pfam (EcoliWiki Page)	PF00246 Zinc carboxypeptidase
Superfamily (EcoliWiki Page)	SUPERFAMILY:53187
Panther (EcoliWiki Page)	PTHR11532:SF18
PFAM (EcoliWiki Page)	PFAM:PF00246
EcoCyc	EcoCyc:G6662	Escherichia coli str. K-12 substr. MG1655
EcoGene	EcoGene:EG13906	Escherichia coli str. K-12 substr. MG1655
RegulonDB	RegulonDB:ECK120003257	Escherichia coli str. K-12 substr. MG1655
EchoBASE	EchoBASE:EB3665	Escherichia coli str. K-12 substr. MG1655
ASAP	ASAP:ABE-0004450	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.

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 ^1.6 ^1.7 ^1.8 ^1.9 Riley, M. et al. (2006) Nucleic Acids Res 34:1-6 (corrected supplemental data from B. Wanner)
↑ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 ^2.6 ^2.7 ^2.8 EcoCyc (release 10.6; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
↑ ^3.0 ^3.1 ^3.2 EcoCyc (release 11.1; 2007) Keseler, IM et al. (2005) Nucleic Acids Res. 33(Database issue):D334-7
↑ ^4.0 ^4.1 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).
↑ Zaslaver, A et al. (2006) A comprehensive library of fluorescent transcriptional reporters for Escherichia coli. Nat. Methods 3 623-8 PubMed

mpaA:On One Page

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Notes

Gene

Nomenclature

Notes

Location(s) and DNA Sequence

Notes

Sequence Features

Notes

Alleles and Phenotypes

Notes

Genetic Interactions

Notes

Genetic Resources

Notes

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 mpaA Expression

Notes

Links

Evolution

Homologs in Other Organisms

Do-It-Yourself Web Tools

Notes

Families

Notes

Links

References

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