ID   PORB_METTM              Reviewed;          10 AA.
AC   P80901;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   04-NOV-2008, entry version 28.
DE   RecName: Full=Pyruvate synthase subunit porB;
DE            EC=1.2.7.1;
DE   AltName: Full=Pyruvate oxidoreductase beta chain;
DE            Short=POR;
DE   AltName: Full=Pyruvic-ferredoxin oxidoreductase subunit beta;
DE   Flags: Fragment;
GN   Name=porB;
OS   Methanobacterium thermoautotrophicum (strain Marburg / DSM 2133).
OC   Archaea; Euryarchaeota; Methanobacteria; Methanobacteriales;
OC   Methanobacteriaceae; Methanothermobacter.
OX   NCBI_TaxID=79929;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   MEDLINE=97261844; PubMed=9108258;
RA   Tersteegen A., Linder D., Thauer R.K., Hedderich R.;
RT   "Structures and functions of four anabolic 2-oxoacid oxidoreductases
RT   in Methanobacterium thermoautotrophicum.";
RL   Eur. J. Biochem. 244:862-868(1997).
CC   -!- CATALYTIC ACTIVITY: Pyruvate + CoA + 2 oxidized ferredoxin =
CC       acetyl-CoA + CO(2) + 2 reduced ferredoxin + 2 H(+).
CC   -!- BIOPHYSICOCHEMICAL PROPERTIES:
CC       pH dependence:
CC         Optimum pH is 10.0;
CC       Temperature dependence:
CC         Optimum temperature is 80 degrees Celsius;
CC   -!- SUBUNIT: Heterotetramer of one alpha, one beta, one delta and one
CC       gamma chain.
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DR   GO; GO:0019164; F:pyruvate synthase activity; IEA:EC.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Oxidoreductase.
FT   CHAIN         1    >10       Pyruvate synthase subunit porB.
FT                                /FTId=PRO_0000099905.
FT   NON_TER      10     10
SQ   SEQUENCE   10 AA;  1236 MW;  167011DAF6DB0760 CRC64;
     XXIPEQXFLR
//