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Q83PR1 (DCEA_SHIFL) Reviewed, UniProtKB/Swiss-Prot

Last modified May 1, 2013. Version 67. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Glutamate decarboxylase alpha
Short name=GAD-alpha
EC=4.1.1.15
Gene names
Name:gadA
Ordered Locus Names:SF3594, S4173
OrganismShigella flexneri [Complete proteome] [HAMAP]
Taxonomic identifier623 [NCBI]
Taxonomic lineageBacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Shigella

Protein attributes

Sequence length466 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Converts glutamate to gamma-aminobutyrate (GABA), consuming one intracellular proton in the reaction. The gad system helps to maintain a near-neutral intracellular pH when cells are exposed to extremely acidic conditions. The ability to survive transit through the acidic conditions of the stomach is essential for successful colonization of the mammalian host by commensal and pathogenic bacteria By similarity.

Catalytic activity

L-glutamate = 4-aminobutanoate + CO2.

Cofactor

Pyridoxal phosphate By similarity.

Subunit structure

Homohexamer By similarity.

Induction

By acidic conditions. Expression is regulated by a complex system involving RpoS, cAMP, CRP, EvgAS, H-NS, GadE, GadW and GadX. The level of involvement for each regulator varies depending upon the growth phase and the medium By similarity.

Sequence similarities

Belongs to the group II decarboxylase family.

Ontologies

Keywords
   LigandPyridoxal phosphate
   Molecular functionDecarboxylase
Lyase
   Technical termComplete proteome
Gene Ontology (GO)
   Biological_processglutamate metabolic process

Inferred from electronic annotation. Source: InterPro

   Molecular_functionglutamate decarboxylase activity

Inferred from electronic annotation. Source: EC

pyridoxal phosphate binding

Inferred from electronic annotation. Source: InterPro

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 466466Glutamate decarboxylase alpha
PRO_0000146981

Regions

Region126 – 1272Pyridoxal phosphate binding By similarity

Sites

Binding site621Substrate By similarity
Binding site831Substrate By similarity
Binding site2121Pyridoxal phosphate By similarity
Binding site2751Pyridoxal phosphate By similarity

Amino acid modifications

Modified residue2761N6-(pyridoxal phosphate)lysine By similarity

Sequences

Sequence LengthMass (Da)Tools
Q83PR1 [UniParc].

Last modified January 4, 2005. Version 2.
Checksum: 44B04876B2DF1680

FASTA46652,700
        10         20         30         40         50         60 
MDQKLLTDFR SELLDSRFGA KAISTIAESK RFPLHEMRDD VAFQIINDEL YLDGNARQNL 

        70         80         90        100        110        120 
ATFCQTWDDE NVHKLMDLSI NKNWIDKEEY PQSAAIDLRC VNMVADLWHA PAPKNGQAVG 

       130        140        150        160        170        180 
TNTIGSSEAC MLGGMAMKWR WRKRMEAAGK PTDKPNLVCG PVQICWHKFA RYWDVELREI 

       190        200        210        220        230        240 
PMRPGQLFMD PKRMIEACDE NTIGVVPTFG VTYTGNYEFP QPLHDALDKF QADTGIDIDM 

       250        260        270        280        290        300 
HIDAASGGFL APFVAPDIVW DFRLPRVKSI SASGHKFGLA PLGCGWVIWR DEEALPQELV 

       310        320        330        340        350        360 
FNVDYLGGQI GTFAINFSRP AGQVIAQYYE FLRLGREGYT KVQNASYQVA AYLADEIAKQ 

       370        380        390        400        410        420 
GPYEFICTGR PDEGIPAVCF KLKDGEDPGY TLYDLSERLR LRGWQVPAFT LGGEATDIVV 

       430        440        450        460 
MRIMCRRGFE MDFAELLLED YKASLKYLSD HPKLQGIAQQ NSFKHT

« Hide

References

[1]"Genome sequence of Shigella flexneri 2a: insights into pathogenicity through comparison with genomes of Escherichia coli K12 and O157."
Jin Q., Yuan Z., Xu J., Wang Y., Shen Y., Lu W., Wang J., Liu H., Yang J., Yang F., Zhang X., Zhang J., Yang G., Wu H., Qu D., Dong J., Sun L., Xue Y. expand/collapse author list , Zhao A., Gao Y., Zhu J., Kan B., Ding K., Chen S., Cheng H., Yao Z., He B., Chen R., Ma D., Qiang B., Wen Y., Hou Y., Yu J.
Nucleic Acids Res. 30:4432-4441(2002) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: 301 / Serotype 2a.
[2]"Complete genome sequence and comparative genomics of Shigella flexneri serotype 2a strain 2457T."
Wei J., Goldberg M.B., Burland V., Venkatesan M.M., Deng W., Fournier G., Mayhew G.F., Plunkett G. III, Rose D.J., Darling A., Mau B., Perna N.T., Payne S.M., Runyen-Janecky L.J., Zhou S., Schwartz D.C., Blattner F.R.
Infect. Immun. 71:2775-2786(2003) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: ATCC 700930 / 2457T / Serotype 2a.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ		AE005674 Genomic DNA. Translation: AAN45045.2.
AE014073 Genomic DNA. Translation: AAP19142.1.
RefSeqNP_709338.2. NC_004337.2.
NP_839331.1. NC_004741.1.

3D structure databases

ProteinModelPortalQ83PR1.
SMRQ83PR1. Positions 4-452.
ModBaseSearch...

Protein-protein interaction databases

STRING198214.SF3594.

Proteomic databases

PaxDbQ83PR1.
PRIDEQ83PR1.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaAAN45045; AAN45045; SF3594.
AAP19142; AAP19142; S4173.
GeneID1026324.
1080379.
KEGGsfl:SF3594.
sfx:S4173.
PATRIC18710286. VBIShiFle31049_4549.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0076.
HOGENOMHOG000070228.
KOK01580.
ProtClustDBCLSK880040.

Family and domain databases

Gene3D3.40.640.10. 1 hit.
InterProIPR010107. Glutamate_decarboxylase.
IPR002129. PyrdxlP-dep_de-COase.
IPR015424. PyrdxlP-dep_Trfase.
IPR015421. PyrdxlP-dep_Trfase_major_sub1.
IPR021115. Pyridoxal-P_BS.
[Graphical view]
PANTHERPTHR11999:SF1. PTHR11999:SF1. 1 hit.
PfamPF00282. Pyridoxal_deC. 1 hit.
[Graphical view]
SUPFAMSSF53383. PyrdxlP-dep_Trfase_major. 1 hit.
TIGRFAMsTIGR01788. Glu-decarb-GAD. 1 hit.
PROSITEPS00392. DDC_GAD_HDC_YDC. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameDCEA_SHIFL
AccessionPrimary (citable) accession number: Q83PR1
Secondary accession number(s): Q7UAY1
Entry history
Integrated into UniProtKB/Swiss-Prot: January 4, 2005
Last sequence update: January 4, 2005
Last modified: May 1, 2013
This is version 67 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

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