Reviewed, UniProtKB/Swiss-Prot P80905 (KORB_METTM)

Names and origin

Protein names

Recommended name:
    2-oxoglutarate synthase subunit korB
    EC=1.2.7.3
Alternative name(s):
    2-ketoglutarate oxidoreductase beta chain
      Short name=KOR
    2-oxoglutarate-ferredoxin oxidoreductase subunit beta

Gene names

Name:

korB

Organism

Methanobacterium thermoautotrophicum (strain Marburg / DSM 2133)

Taxonomic identifier

79929 [NCBI]

Taxonomic lineage

Archaea › Euryarchaeota › Methanobacteria › Methanobacteriales › Methanobacteriaceae › Methanothermobacter

Protein attributes

Sequence length	22 AA.
Sequence status	Fragment.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at protein level.

General annotation (Comments)

Catalytic activity	2-oxoglutarate + CoA + 2 oxidized ferredoxin = succinyl-CoA + CO2 + 2 reduced ferredoxin + 2 H+.
Subunit structure	Heterotetramer of the korA, korB, korC and korD subunits.
biophysicochemical properties	pH dependence: Optimum pH is 9. Temperature dependence: Optimum temperature is 70 degrees Celsius.

Ontologies

Keywords
Molecular function	Oxidoreductase
Technical term	Direct protein sequencing
Gene Ontology (GO)
Biological process	oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	2-oxoglutarate synthase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – ›22	›22	2-oxoglutarate synthase subunit korB		PRO_0000099944
Experimental info
	Non-terminal residue	22	1

Sequences

	Sequence		Length	Mass (Da)
	P80905-1 [UniParc]. Last modified November 1, 1997. Version 1. Checksum: EE98B4D60E1C1702	FASTA	22	2,815
	10 20 MNVKENPYLK YLRRDRLPHI FX

References

[1]	"Structures and functions of four anabolic 2-oxoacid oxidoreductases in Methanobacterium thermoautotrophicum." Tersteegen A., Linder D., Thauer R.K., Hedderich R. Eur. J. Biochem. 244:862-868(1997) [PubMed: 9108258] [Abstract] Cited for: PROTEIN SEQUENCE.

Cross-references

3D structure databases
ModBase	Search...
Family and domain databases
ProtoNet	Search...

Entry information

Entry name

KORB_METTM

Accession

Primary (citable) accession number: P80905

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 1, 1997
Last sequence update:	November 1, 1997
Last modified:	May 5, 2009
This is version 32 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)