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Protein

Glutamine synthetase

Gene

glnA

Organism
Salmonella typhi
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Catalyzes the ATP-dependent biosynthesis of glutamine from glutamate and ammonia.By similarity

Catalytic activityi

ATP + L-glutamate + NH3 = ADP + phosphate + L-glutamine.By similarity

Cofactori

Mn2+By similarityNote: Binds 2 Mn2+ ions per subunit.By similarity

Enzyme regulationi

When cellular nitrogen levels are high, the C-terminal adenylyl transferase (AT) of GlnE inhibits GlnA by covalent transfer of an adenylyl group from ATP to Tyr-398. Conversely, when nitrogen levels are low, the N-terminal adenylyl removase (AR) of GlnE activates GlnA by removing the adenylyl group by phosphorolysis. The fully adenylated enzyme complex is inactive.By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi130Magnesium 1By similarity1
Metal bindingi132Magnesium 2By similarity1
Binding sitei208ATPBy similarity1
Metal bindingi213Magnesium 2By similarity1
Metal bindingi221Magnesium 2By similarity1
Binding sitei266L-glutamate; via oxygen carbonylBy similarity1
Metal bindingi270Magnesium 1; via pros nitrogenBy similarity1
Binding sitei274ATPBy similarity1
Binding sitei322L-glutamateBy similarity1
Binding sitei328L-glutamateBy similarity1
Binding sitei340ATPBy similarity1
Binding sitei340L-glutamateBy similarity1
Binding sitei345ATPBy similarity1
Binding sitei353ATPBy similarity1
Metal bindingi358Magnesium 1By similarity1
Binding sitei360L-glutamateBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi272 – 274ATPBy similarity3

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionLigase
LigandATP-binding, Magnesium, Metal-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Glutamine synthetaseBy similarity (EC:6.3.1.2By similarity)
Short name:
GSBy similarity
Alternative name(s):
Glutamate--ammonia ligaseCurated
Glutamine synthetase I betaCurated
Short name:
GSI betaCurated
Gene namesi
Name:glnABy similarity
Ordered Locus Names:STY3874, t3614
OrganismiSalmonella typhi
Taxonomic identifieri90370 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeSalmonella
Proteomesi
  • UP000002670 Componenti: Chromosome
  • UP000000541 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm By similarity

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedBy similarity
ChainiPRO_00001532522 – 469Glutamine synthetaseAdd BLAST468

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei398O-AMP-tyrosineBy similarity1

Keywords - PTMi

Phosphoprotein

Proteomic databases

PRIDEiP0A1P7.

Interactioni

Subunit structurei

Oligomer of 12 subunits arranged in the form of two hexagons.By similarity

Protein-protein interaction databases

STRINGi220341.STY3874.

Structurei

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
5LDFelectron microscopy6.20A/B/C/D/E/F/G/H/I/J/K/L4-469[»]
ProteinModelPortaliP0A1P7.
SMRiP0A1P7.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni265 – 266L-glutamate bindingBy similarity2

Sequence similaritiesi

Belongs to the glutamine synthetase family.Curated

Phylogenomic databases

eggNOGiENOG4105C5F. Bacteria.
COG0174. LUCA.
HOGENOMiHOG000005157.
KOiK01915.
OMAiKVLNQVG.

Family and domain databases

Gene3Di3.10.20.70. 1 hit.
3.30.590.10. 1 hit.
InterProiView protein in InterPro
IPR008147. Gln_synt_b-grasp.
IPR014746. Gln_synth/guanido_kin_cat_dom.
IPR008146. Gln_synth_cat_dom.
IPR027303. Gln_synth_gly_rich_site.
IPR004809. Gln_synth_I.
IPR001637. Gln_synth_I_adenylation_site.
IPR027302. Gln_synth_N_conserv_site.
PfamiView protein in Pfam
PF00120. Gln-synt_C. 1 hit.
PF03951. Gln-synt_N. 1 hit.
SMARTiView protein in SMART
SM01230. Gln-synt_C. 1 hit.
SUPFAMiSSF54368. SSF54368. 1 hit.
TIGRFAMsiTIGR00653. GlnA. 1 hit.
PROSITEiView protein in PROSITE
PS00180. GLNA_1. 1 hit.
PS00182. GLNA_ADENYLATION. 1 hit.
PS00181. GLNA_ATP. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P0A1P7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSAEHVLTML NEHEVKFVDL RFTDTKGKEQ HVTIPAHQVN AEFFEEGKMF
60 70 80 90 100
DGSSIGGWKG INESDMVLMP DASTAVIDPF FADSTLIIRC DILEPGTLQG
110 120 130 140 150
YDRDPRSIAK RAEDYLRATG IADTVLFGPE PEFFLFDDIR FGASISGSHV
160 170 180 190 200
AIDDIEGAWN SSTKYEGGNK GHRPGVKGGY FPVPPVDSAQ DIRSEMCLVM
210 220 230 240 250
EQMGLVVEAH HHEVATAGQN EVATRFNTMT KKADEIQIYK YVVHNVAHRF
260 270 280 290 300
GKTATFMPKP MFGDNGSGMH CHMSLAKNGT NLFSGDKYAG LSEQALYYIG
310 320 330 340 350
GVIKHAKAIN ALANPTTNSY KRLVPGYEAP VMLAYSARNR SASIRIPVVA
360 370 380 390 400
SPKARRIEVR FPDPAANPYL CFAALLMAGL DGIKNKIHPG EAMDKNLYDL
410 420 430 440 450
PPEEAKEIPQ VAGSLEEALN ALDLDREFLK AGGVFTDEAI DAYIALRREE
460
DDRVRMTPHP VEFELYYSV
Length:469
Mass (Da):51,786
Last modified:January 23, 2007 - v2
Checksum:iCD4303E758871E10
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL513382 Genomic DNA. Translation: CAD03093.1.
AE014613 Genomic DNA. Translation: AAO71115.1.
RefSeqiNP_458042.1. NC_003198.1.
WP_001271699.1. NZ_LUHL01000012.1.

Genome annotation databases

EnsemblBacteriaiAAO71115; AAO71115; t3614.
CAD03093; CAD03093; CAD03093.
GeneIDi1250120.
KEGGistt:t3614.
sty:STY3874.
PATRICi18545917. VBISalEnt120419_3952.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AL513382 Genomic DNA. Translation: CAD03093.1.
AE014613 Genomic DNA. Translation: AAO71115.1.
RefSeqiNP_458042.1. NC_003198.1.
WP_001271699.1. NZ_LUHL01000012.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
5LDFelectron microscopy6.20A/B/C/D/E/F/G/H/I/J/K/L4-469[»]
ProteinModelPortaliP0A1P7.
SMRiP0A1P7.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi220341.STY3874.

Proteomic databases

PRIDEiP0A1P7.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAO71115; AAO71115; t3614.
CAD03093; CAD03093; CAD03093.
GeneIDi1250120.
KEGGistt:t3614.
sty:STY3874.
PATRICi18545917. VBISalEnt120419_3952.

Phylogenomic databases

eggNOGiENOG4105C5F. Bacteria.
COG0174. LUCA.
HOGENOMiHOG000005157.
KOiK01915.
OMAiKVLNQVG.

Family and domain databases

Gene3Di3.10.20.70. 1 hit.
3.30.590.10. 1 hit.
InterProiView protein in InterPro
IPR008147. Gln_synt_b-grasp.
IPR014746. Gln_synth/guanido_kin_cat_dom.
IPR008146. Gln_synth_cat_dom.
IPR027303. Gln_synth_gly_rich_site.
IPR004809. Gln_synth_I.
IPR001637. Gln_synth_I_adenylation_site.
IPR027302. Gln_synth_N_conserv_site.
PfamiView protein in Pfam
PF00120. Gln-synt_C. 1 hit.
PF03951. Gln-synt_N. 1 hit.
SMARTiView protein in SMART
SM01230. Gln-synt_C. 1 hit.
SUPFAMiSSF54368. SSF54368. 1 hit.
TIGRFAMsiTIGR00653. GlnA. 1 hit.
PROSITEiView protein in PROSITE
PS00180. GLNA_1. 1 hit.
PS00182. GLNA_ADENYLATION. 1 hit.
PS00181. GLNA_ATP. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiGLN1B_SALTI
AccessioniPrimary (citable) accession number: P0A1P7
Secondary accession number(s): P06201, Q60007
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 1, 1988
Last sequence update: January 23, 2007
Last modified: April 12, 2017
This is version 77 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.