Protein Domain : IPR002489

Type:  Domain Name:  Glutamate synthase, alpha subunit, C-terminal
Description:  Glutamate synthase (GltS) is a complex iron-sulphur flavoprotein that catalyses the reductive synthesis of L-glutamate from 2-oxoglutarate and L-glutamine via intramolecular channelling of ammonia, a reaction in the bacterial, yeast and plant pathways for ammonia assimilation []. GltS is a multifunctional enzyme that functions through three distinct active centres carrying out multiple reaction steps: L-glutamine hydrolysis, conversion of 2-oxoglutarate into L-glutamate, and electron uptake from an electron donor. The active centres are synchronised to avoid the wasteful consumption of L-glutamine []. There are three classes of GltS, which share many functional properties: bacterial NADPH-dependent GltS, ferredoxin-dependent GltS from photosynthetic cells, and NAD(P)H-dependent GltS from yeast, fungi and lower animals.The dimeric alpha subunits each consist of four domains: N-terminal amidotransferase domain, the central domain, the FMN binding domain and the C-terminal domain. The C-terminal domain forms a right-handed beta-helix that comprises seven helical turns []. Each helical turn has a sharp bend that is associated with a repeated sequence motif consisting of G-XX-G-XXX-G. This domain does not contain any residues directly involved in catalysis, but has a crucial structural role.This domain is also found in proteins such as subunit C of formylmethanofuran dehydrogenase, which catalyses the first step in methane formation from carbon dioxide in methanogenic archaea. There are two isoenzymes of formylmethanofuran dehydrogenase: a tungsten-containing isoenzyme (FwdC) and a molybdenum-containing isoenzyme (FmdC). The tungsten isoenzyme is constitutively transcribed, whereas transcription of the molybdenum operon is induced by molybdate []. Short Name:  Glu_synth_asu_C

1 Child Features

DB identifier Type Name
IPR017550 Domain Formylmethanofuran dehydrogenase subunit C

0 Contains

3 Cross Referencess

Identifier
PF01493
G3DSA:2.160.20.60
SSF69336

3 Found Ins

DB identifier Type Name
IPR012220 Family Glutamate synthase, eukaryotic
IPR012048 Family Formylmethanofuran dehydrogenase, fused subunit C/D
IPR012075 Family Glutamate synthase, large subunit domains 1/3 fusion

3 GO Annotations

GO Term Gene Name
GO:0016491 IPR002489
GO:0008152 IPR002489
GO:0055114 IPR002489

3 Ontology Annotations

GO Term Gene Name
GO:0016491 IPR002489
GO:0008152 IPR002489
GO:0055114 IPR002489

0 Parent Features

3256 Proteins

DB identifier UniProt Accession Secondary Identifier Organism Name Length
413797 D8RQ89 PAC:15416894 Selaginella moellendorffii 264  
439142 D8R2R8 PAC:15421672 Selaginella moellendorffii 2144  
421270 D8SEP8 PAC:15414419 Selaginella moellendorffii 628  
155359 D8SHF8 PAC:15405448 Selaginella moellendorffii 1500  
158084 D8STB8 PAC:15412060 Selaginella moellendorffii 2065  
evm.model.supercontig_3.65 PAC:16416850 Carica papaya 2012  
evm.model.supercontig_5.173 PAC:16421277 Carica papaya 1565  
30169.m006499 B9RII5 PAC:16821299 Ricinus communis 2215  
30174.m008613 B9RDT2 PAC:16822259 Ricinus communis 359  
29612.m000378 B9SLP5 PAC:16803685 Ricinus communis 1632  
Cucsa.337800.3 PAC:16978668 Cucumis sativus 1335  
Cucsa.337800.2 PAC:16978667 Cucumis sativus 1376  
Cucsa.040650.2 PAC:16952776 Cucumis sativus 1859  
Cucsa.040650.1 PAC:16952775 Cucumis sativus 2202  
orange1.1g000265m A0A067E773 PAC:18105075 Citrus sinensis 1760  
orange1.1g000266m A0A067E773 PAC:18105074 Citrus sinensis 1760  
orange1.1g000461m PAC:18139245 Citrus sinensis 1482  
AT5G04140.2 Q9ZNZ7 PAC:19671351 Arabidopsis thaliana 1648  
AT5G04140.1 Q9ZNZ7 PAC:19671352 Arabidopsis thaliana 1622  
AT5G53460.1 Q9LV03 PAC:19667700 Arabidopsis thaliana 2208  
AT5G53460.3 Q9LV03 PAC:19667702 Arabidopsis thaliana 2208  
AT5G53460.2 Q9LV03 PAC:19667701 Arabidopsis thaliana 2208  
AT2G41220.1 Q9T0P4 PAC:19638080 Arabidopsis thaliana 1629  
Thhalv10012415m V4NB88 PAC:20204069 Eutrema salsugineum 1886  
Thhalv10012414m V4LL20 PAC:20204068 Eutrema salsugineum 1897  
Thhalv10012425m V4LKH6 PAC:20206098 Eutrema salsugineum 1621  
Ciclev10004141m V4S239 PAC:20789842 Citrus clementina 1585  
Ciclev10004150m V4RJS5 PAC:20789843 Citrus clementina 1437  
Ciclev10004120m PAC:20789553 Citrus clementina 2230  
Ciclev10004123m PAC:20789554 Citrus clementina 2142  

3 Publications

First Author Title Year Journal Volume Pages PubMed ID
            9818358
            11967268
            11188694