Reviewed, UniProtKB/Swiss-Prot P80902 (PORC_METTM)

Names and origin

Protein names

Recommended name:
    Pyruvate synthase subunit porC
    EC=1.2.7.1
Alternative name(s):
    Pyruvate oxidoreductase gamma chain
      Short name=POR
    Pyruvic-ferredoxin oxidoreductase subunit gamma

Gene names

Name:

porC

Organism

Methanobacterium thermoautotrophicum (strain Marburg / DSM 2133)

Taxonomic identifier

79929 [NCBI]

Taxonomic lineage

Archaea › Euryarchaeota › Methanobacteria › Methanobacteriales › Methanobacteriaceae › Methanothermobacter

Protein attributes

Sequence length	20 AA.
Sequence status	Fragment.
Protein existence	Evidence at protein level.

General annotation (Comments)

Catalytic activity	Pyruvate + CoA + 2 oxidized ferredoxin = acetyl-CoA + CO2 + 2 reduced ferredoxin + 2 H+.
Subunit structure	Heterotetramer of one alpha, one beta, one delta and one gamma chain.
Biophysicochemical properties	pH dependence: Optimum pH is 10.0. Temperature dependence: Optimum temperature is 80 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	pyruvate 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 – ›20	›20	Pyruvate synthase subunit porC		PRO_0000099912
Experimental info
	Non-terminal residue	20	1

Sequences

	Sequence		Length	Mass (Da)
	P80902-1 [UniParc]. Last modified November 1, 1997. Version 1. Checksum: 481532134D42F353	FASTA	20	2,168
	10 20 MIEIRFHGRG GQXAVTAAEI

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

PORC_METTM

Accession

Primary (citable) accession number: P80902

Entry history

Integrated into UniProtKB/Swiss-Prot:	November 1, 1997
Last sequence update:	November 1, 1997
Last modified:	May 5, 2009
This is version 37 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)