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The map label for this gene is xasA

Identifier: 30063217

GI number: 30063217

Start: 1809541

End: 1811076

Strand: Direct

Name: xasA

Synonym: S1868

Alternate gene names: 30063217

Gene position: 1809541-1811076 (Clockwise)

Preceding gene: 30063216

Following gene: 30063218

Centisome position: 39.34

GC content: 48.31

Gene sequence:

>1536_bases
ATGGCTACATCAGTACAGACAGGTAAAGCTAAGCAGCTCACATTACTCGGATTCTTTGCCATAACGGCATCGATGGTAAT
GGCTGTTTATGAATACCCTACCTTCGCAACATCGGGCTTTTCATTAGTCTTCTTCCTGCTATTAGGCGGGATTTTATGGT
TTATTCCCGTGGGACTTTGTGCTGCGGAAATGGCCACCGTCGACGGCTGGGAAGAAGGTGGTGTCTTCGCCTGGGTATCA
AATACTCTGGGTCCGAGATGGGGATTTGCAGCGATCTCATTTGGCTATCTGCAAATCGCCATTGGTTTTATTCCGATGCT
CTATTTCGTGTTAGGGGCACTCTCCTACATCCTGAAATGGCCAGCGCTGAATGAAGACCCCATTACCAAAACTATTGCAG
CACTCATCATTCTTTGGGCGCTGGCATTAACGCAGTTTGGTGGCACGAAATACACGGCGCGAATTGCTAAAGTTGGCTTC
TTCGCCGGTATCCTGTTACCTGCATTTATTTTGATCGCATTAGCGGCTATTTACCTGCACTCCGGTGCCCCCGTTGCTAT
CGAAATGGATTCGAAGACCTTCTTCCCTGACTTCTCTAAAGTGGGCACACTGGTTGTATTTGTTGCCTTCATTTTGAGTT
ATATGGGCGTAGAAGCTTCCGCAACTCACGTCAATGAAATGAGCAACCCCGGGCGCGACTATCCACTGGCTATGTTACTG
CTGATGGTGGCGGCAATCTGCTTAAGCTCTGTTGGCGGTTTGTCTATTGCGATGGTCATTCCGGGTAATGAAATCAACCT
CTCCGCAGGGGTAATGCAAACCTTTACCGTTCTGATGTCCCATGTGGCACCGGAAATTGAGTGGACGGTTCGCGTGATCT
CCGCACTGCTGTTGCTGGGTGTTCTGGCGGAAATCGCCTCCTGGATTGTTGGTCCTTCTCGCGGGATGTATGTCACAGCG
CAGAAAAACCTGCTGCCAGCGGCATTCGCTAAAATGAACAAAAATGGCGTACCGGTAACGCTGGTCATTTCGCAGCTGGT
GATTACTTCTATCGCGTTGATCATCCTCACCAATACCGGTGGCGGTAACAACATGTCCTTCCTGATCGCACTGGCGCTGA
CGGTGGTGATTTATCTGTGTGCTTATTTCATGCTGTTTATTGGCTACATTGTGTTGGTTCTTAAACATCCTGACTTAAAA
CGCACATTTAATATCCCTGGTGGTAAAGGGGTGAAACTGGTCGTGGCAATTGTCGGTCTGCTGACTTCAATTATGGCGTT
TATTGTTTCCTTCCTGCCGCCGGATAACATCCAGGGTGATTCTACCGATATGTATGTTGAATTACTGGTTGTTAGTTTCC
TGGTGGTACTTGCCCTGCCCTTTATTCTCTATGCTGTTCATGATCGTAAAGGCAAAGCGAATACCGGCGTCACTCTGGAG
CCAATCAACAGTCAGAACGCACCAAAAGGTCACTTCTTCCTGCACCCGCGTGCACGTTCACCACACTATATTGTGATGAA
TGACAAGAAACACTAA

Upstream 100 bases:

>100_bases
AGTCTGTTCACTGGCATTAGCAACGGAAAATATTGTTCTGAATACGCTTCAGAACAAAACAGGTGCGGTTCCGACAGGAA
TACCGTTTTAGGGGGATAAT

Downstream 100 bases:

>100_bases
CCATGTCTGAATGGTTATAAGACAAGGGAGCGATAATTCATCGCTCCCTTTTTCGTGCTTGCTGTCGTATTGACTTAACC
GGGATAAGTACGAGAATGAG

Product: acid sensitivity protein, putative transporter

Products: L-glutamate [Cytoplasm]; 4-aminobutyrate [Periplasm] [C]

Alternate protein names: Extreme acid sensitivity protein [H]

Number of amino acids: Translated: 511; Mature: 510

Protein sequence:

>511_residues
MATSVQTGKAKQLTLLGFFAITASMVMAVYEYPTFATSGFSLVFFLLLGGILWFIPVGLCAAEMATVDGWEEGGVFAWVS
NTLGPRWGFAAISFGYLQIAIGFIPMLYFVLGALSYILKWPALNEDPITKTIAALIILWALALTQFGGTKYTARIAKVGF
FAGILLPAFILIALAAIYLHSGAPVAIEMDSKTFFPDFSKVGTLVVFVAFILSYMGVEASATHVNEMSNPGRDYPLAMLL
LMVAAICLSSVGGLSIAMVIPGNEINLSAGVMQTFTVLMSHVAPEIEWTVRVISALLLLGVLAEIASWIVGPSRGMYVTA
QKNLLPAAFAKMNKNGVPVTLVISQLVITSIALIILTNTGGGNNMSFLIALALTVVIYLCAYFMLFIGYIVLVLKHPDLK
RTFNIPGGKGVKLVVAIVGLLTSIMAFIVSFLPPDNIQGDSTDMYVELLVVSFLVVLALPFILYAVHDRKGKANTGVTLE
PINSQNAPKGHFFLHPRARSPHYIVMNDKKH

Sequences:

>Translated_511_residues
MATSVQTGKAKQLTLLGFFAITASMVMAVYEYPTFATSGFSLVFFLLLGGILWFIPVGLCAAEMATVDGWEEGGVFAWVS
NTLGPRWGFAAISFGYLQIAIGFIPMLYFVLGALSYILKWPALNEDPITKTIAALIILWALALTQFGGTKYTARIAKVGF
FAGILLPAFILIALAAIYLHSGAPVAIEMDSKTFFPDFSKVGTLVVFVAFILSYMGVEASATHVNEMSNPGRDYPLAMLL
LMVAAICLSSVGGLSIAMVIPGNEINLSAGVMQTFTVLMSHVAPEIEWTVRVISALLLLGVLAEIASWIVGPSRGMYVTA
QKNLLPAAFAKMNKNGVPVTLVISQLVITSIALIILTNTGGGNNMSFLIALALTVVIYLCAYFMLFIGYIVLVLKHPDLK
RTFNIPGGKGVKLVVAIVGLLTSIMAFIVSFLPPDNIQGDSTDMYVELLVVSFLVVLALPFILYAVHDRKGKANTGVTLE
PINSQNAPKGHFFLHPRARSPHYIVMNDKKH
>Mature_510_residues
ATSVQTGKAKQLTLLGFFAITASMVMAVYEYPTFATSGFSLVFFLLLGGILWFIPVGLCAAEMATVDGWEEGGVFAWVSN
TLGPRWGFAAISFGYLQIAIGFIPMLYFVLGALSYILKWPALNEDPITKTIAALIILWALALTQFGGTKYTARIAKVGFF
AGILLPAFILIALAAIYLHSGAPVAIEMDSKTFFPDFSKVGTLVVFVAFILSYMGVEASATHVNEMSNPGRDYPLAMLLL
MVAAICLSSVGGLSIAMVIPGNEINLSAGVMQTFTVLMSHVAPEIEWTVRVISALLLLGVLAEIASWIVGPSRGMYVTAQ
KNLLPAAFAKMNKNGVPVTLVISQLVITSIALIILTNTGGGNNMSFLIALALTVVIYLCAYFMLFIGYIVLVLKHPDLKR
TFNIPGGKGVKLVVAIVGLLTSIMAFIVSFLPPDNIQGDSTDMYVELLVVSFLVVLALPFILYAVHDRKGKANTGVTLEP
INSQNAPKGHFFLHPRARSPHYIVMNDKKH

Specific function: Involved in glutamate-dependent acid resistance. Imports glutamate inside the cell while simultaneously exporting to the periplasm the GABA produced by gadA and gadB. The gad system helps to maintain a near-neutral intracellular pH when cells are exposed

COG id: COG0531

COG function: function code E; Amino acid transporters

Gene ontology:

Cell location: Cell inner membrane; Multi-pass membrane protein [H]

Metaboloic importance: Non_Essential [C]

Operon status: Not Known

Operon components: None

Similarity: Belongs to the amino acid-polyamine-organocation (APC) superfamily. Glutamate:GABA antiporter (GGA) (TC 2.A.3.7) family [H]

Homologues:

Organism=Escherichia coli, GI1787768, Length=511, Percent_Identity=100, Blast_Score=1021, Evalue=0.0,
Organism=Escherichia coli, GI87082380, Length=436, Percent_Identity=24.3119266055046, Blast_Score=85, Evalue=1e-17,
Organism=Escherichia coli, GI87081798, Length=402, Percent_Identity=24.1293532338308, Blast_Score=70, Evalue=5e-13,

Paralogues:

None

Copy number: NA

Swissprot (AC and ID): NA

Other databases:

- InterPro:   IPR004841
- InterPro:   IPR002293
- InterPro:   IPR004759 [H]

Pfam domain/function: PF00324 AA_permease [H]

EC number: NA

Molecular weight: Translated: 55077; Mature: 54946

Theoretical pI: Translated: 8.90; Mature: 8.90

Prosite motif: NA

Important sites: NA

Signals:

None

Transmembrane regions:

None

Cys/Met content:

0.6 %Cys     (Translated Protein)
3.9 %Met     (Translated Protein)
4.5 %Cys+Met (Translated Protein)
0.6 %Cys     (Mature Protein)
3.7 %Met     (Mature Protein)
4.3 %Cys+Met (Mature Protein)

Secondary structure:

>Translated Secondary Structure
MATSVQTGKAKQLTLLGFFAITASMVMAVYEYPTFATSGFSLVFFLLLGGILWFIPVGLC
CCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHHHHHHH
AAEMATVDGWEEGGVFAWVSNTLGPRWGFAAISFGYLQIAIGFIPMLYFVLGALSYILKW
HHHHHHCCCCCCCCEEEEECCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHC
PALNEDPITKTIAALIILWALALTQFGGTKYTARIAKVGFFAGILLPAFILIALAAIYLH
CCCCCCHHHHHHHHHHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHC
SGAPVAIEMDSKTFFPDFSKVGTLVVFVAFILSYMGVEASATHVNEMSNPGRDYPLAMLL
CCCCEEEEECCCCCCCCHHHHHHHHHHHHHHHHHHCCCCHHHHHHHCCCCCCCCHHHHHH
LMVAAICLSSVGGLSIAMVIPGNEINLSAGVMQTFTVLMSHVAPEIEWTVRVISALLLLG
HHHHHHHHHCCCCCEEEEEECCCCCCCHHHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHH
VLAEIASWIVGPSRGMYVTAQKNLLPAAFAKMNKNGVPVTLVISQLVITSIALIILTNTG
HHHHHHHHHCCCCCCEEEEECCCCHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHEEECCC
GGNNMSFLIALALTVVIYLCAYFMLFIGYIVLVLKHPDLKRTFNIPGGKGVKLVVAIVGL
CCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCEECCCCCCCHHHHHHHHHH
LTSIMAFIVSFLPPDNIQGDSTDMYVELLVVSFLVVLALPFILYAVHDRKGKANTGVTLE
HHHHHHHHHHHCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCEEE
PINSQNAPKGHFFLHPRARSPHYIVMNDKKH
ECCCCCCCCCEEEECCCCCCCCEEEECCCCC
>Mature Secondary Structure 
ATSVQTGKAKQLTLLGFFAITASMVMAVYEYPTFATSGFSLVFFLLLGGILWFIPVGLC
CCCCCCCCCCHHHHHHHHHHHHHHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHHHHHHH
AAEMATVDGWEEGGVFAWVSNTLGPRWGFAAISFGYLQIAIGFIPMLYFVLGALSYILKW
HHHHHHCCCCCCCCEEEEECCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHC
PALNEDPITKTIAALIILWALALTQFGGTKYTARIAKVGFFAGILLPAFILIALAAIYLH
CCCCCCHHHHHHHHHHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHC
SGAPVAIEMDSKTFFPDFSKVGTLVVFVAFILSYMGVEASATHVNEMSNPGRDYPLAMLL
CCCCEEEEECCCCCCCCHHHHHHHHHHHHHHHHHHCCCCHHHHHHHCCCCCCCCHHHHHH
LMVAAICLSSVGGLSIAMVIPGNEINLSAGVMQTFTVLMSHVAPEIEWTVRVISALLLLG
HHHHHHHHHCCCCCEEEEEECCCCCCCHHHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHH
VLAEIASWIVGPSRGMYVTAQKNLLPAAFAKMNKNGVPVTLVISQLVITSIALIILTNTG
HHHHHHHHHCCCCCCEEEEECCCCHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHEEECCC
GGNNMSFLIALALTVVIYLCAYFMLFIGYIVLVLKHPDLKRTFNIPGGKGVKLVVAIVGL
CCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCEECCCCCCCHHHHHHHHHH
LTSIMAFIVSFLPPDNIQGDSTDMYVELLVVSFLVVLALPFILYAVHDRKGKANTGVTLE
HHHHHHHHHHHCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCEEE
PINSQNAPKGHFFLHPRARSPHYIVMNDKKH
ECCCCCCCCCEEEECCCCCCCCEEEECCCCC

PDB accession: NA

Resolution: NA

Structure class: Unstructured

Cofactors: NA

Metal ions: NA

Kcat value (1/min): NA

Specific activity: NA

Km value (mM): NA

Substrates: 4-aminobutyrate [Cytoplasm]; L-glutamate [Periplasm] [C]

Specific reaction: 4-aminobutyrate [Cytoplasm] + L-glutamate [Periplasm] = L-glutamate [Cytoplasm] + 4-aminobutyrate [Periplasm] [C]

General reaction: NA

Inhibitor: NA

Structure determination priority: 6.0

TargetDB status: NA

Availability: NA

References: 11206551; 11258796 [H]