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Reviewed, UniProtKB/Swiss-Prot Q8THW2 (ACDA3_METAC)

Last modified January 19, 2010. Version 53. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    Acetyl-CoA decarbonylase/synthase complex subunit alpha 3
      Short name=ACDS complex subunit alpha 3
    EC=1.2.99.2
Alternative name(s):
    ACDS complex carbon monoxide dehydrogenase 3
      Short name=ACDS CODH 3
Gene names
Name: cdhA3
Ordered Locus Names: MA_4399
OrganismMethanosarcina acetivorans [Complete proteome] [HAMAP]
Taxonomic identifier2214 [NCBI]
Taxonomic lineageArchaeaEuryarchaeotaMethanomicrobiaMethanosarcinalesMethanosarcinaceaeMethanosarcina

Protein attributes

Sequence length805 AA.
Sequence statusComplete.
Protein existenceInferred from homology.

General annotation (Comments)

Function

Part of a complex that catalyzes the reversible cleavage of acetyl-CoA, allowing growth on acetate as sole source of carbon and energy By similarity. HAMAP MF_01137

Catalytic activity

CO + H2O + A = CO2 + AH2. HAMAP MF_01137

Cofactor

Binds 7 4Fe-4S clusters per heterotetramer Potential. HAMAP MF_01137

Binds 2 nickel-iron-sulfur clusters per heterotetramer Potential. HAMAP MF_01137

Pathway

One-carbon metabolism; methanogenesis from acetate. HAMAP MF_01137

Subunit structure

Heterotetramer of two alpha and two epsilon chains. The ACDS complex is made up of alpha, epsilon, beta, gamma and delta chains with a probable stoichiometry of (alpha2epsilon2)(4)-beta(8)-(gamma1delta1)8 Potential. HAMAP MF_01137

Domain

Cluster B is an all-cysteinyl-liganded 4Fe4S cluster; cluster C is a mixed Ni-Fe-S cluster which appears to be the active site of CO oxidation. Cluster D is also an all-cysteinyl-liganded 4Fe4S cluster that bridges the two subunits of the CODH dimer. May contain two additional 4Fe-4S clusters, dubbed E and F, that might reroute electron transfer along different paths. HAMAP MF_01137

Sequence similarities

Belongs to the Ni-containing carbon monoxide dehydrogenase family.

Contains 2 4Fe-4S ferredoxin-type domains.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 805805Acetyl-CoA decarbonylase/synthase complex subunit alpha 3 HAMAP MF_01137
PRO_0000155076

Regions

Domain407 – 435294Fe-4S ferredoxin-type 1
Domain445 – 474304Fe-4S ferredoxin-type 2

Sites

Metal binding721Iron-sulfur 1 (4Fe-4S); shared with dimeric partner By similarity
Metal binding751Iron-sulfur 1 (4Fe-4S); shared with dimeric partner By similarity
Metal binding761Iron-sulfur 2 (4Fe-4S) By similarity
Metal binding781Iron-sulfur 2 (4Fe-4S) By similarity
Metal binding831Iron-sulfur 2 (4Fe-4S) By similarity
Metal binding931Iron-sulfur 2 (4Fe-4S) By similarity
Metal binding2491Nickel-iron-sulfur By similarity
Metal binding2771Nickel-iron-sulfur By similarity
Metal binding3221Nickel-iron-sulfur By similarity
Metal binding4161Iron-sulfur 3 (4Fe-4S) Potential
Metal binding4191Iron-sulfur 3 (4Fe-4S) Potential
Metal binding4221Iron-sulfur 3 (4Fe-4S) Potential
Metal binding4261Iron-sulfur 3 (4Fe-4S) Potential
Metal binding4541Iron-sulfur 4 (4Fe-4S) Potential
Metal binding4571Iron-sulfur 4 (4Fe-4S) Potential
Metal binding4601Iron-sulfur 4 (4Fe-4S) Potential
Metal binding4641Iron-sulfur 4 (4Fe-4S) Potential
Metal binding5221Nickel-iron-sulfur By similarity
Metal binding5511Nickel-iron-sulfur By similarity
Metal binding5861Nickel-iron-sulfur By similarity

Sequences

Sequence LengthMass (Da)Tools
Q8THW2-1 [UniParc].

Last modified June 1, 2002. Version 1.
Checksum: 8B1B9B32B56C56CD

FASTA80587,993
        10         20         30         40         50         60 
MSKLTTGSFS IEDLESVQIT INNIVGAAKE AAEEKAKELG PMGPTAMAGL ASYRSWNLLL 

        70         80         90        100        110        120 
LDRYEPVLTP MCDQCCYCTY GPCDLSGNKR GACGIDMAGQ TGREFFLRVI TGTACHAAHG 

       130        140        150        160        170        180 
RHLLDHVIEV FGEDLPLNLG ESNVLTPNVT ICTGLSPKTL GECRAPMEYV EEQLTQLLAT 

       190        200        210        220        230        240 
IHAGQESAEI DYDSKALFSG SLDHVGMEVS DIAQVSAYDF PKADPEAPLI EIGMGSIDKS 

       250        260        270        280        290        300 
KPLIVAIGHN VAGVTYIMDY MEENNLTDKM EIAGLCCTAF DMTRYKEADR RAPYAKIVGS 

       310        320        330        340        350        360 
LAKELKVIRS GMPDVIVVDE QCVRGDVLSE SMKLKIPVIA SNEKIMMGLP DRTDADVDSI 

       370        380        390        400        410        420 
VEEIKSGAIP GCVMLDYDKL GELIPKIAEV MAPIRDAEGI TAIPTDEEFK VYIDKCVKCG 

       430        440        450        460        470        480 
ECMLACPEEL DIPEALEYAA KGSYEYLEAL HDVCIGCRRC EQVCKKEIPI LNVLEKAAQK 

       490        500        510        520        530        540 
SISEEKGWVR SGRGQASDAE IRAEGLNLVM GTTPGIIAII GCPNYPAGTK DVYNIAEEFL 

       550        560        570        580        590        600 
KRNYLVVVSG CSAMDIGMYK DDDGKTLYER YPGTFSGGGL LNTGSCVSNA HITGAAEKVA 

       610        620        630        640        650        660 
GIFAQRTLAG NLAEVADYTL NRVGACGLAW GAYSQKAASI GTGCNIYGIP AVLGPHSSKY 

       670        680        690        700        710        720 
RRALIAKTYE EDKWKVFDAR DGSEMNIPPA PEFLLTTAET WQEALPMMAK ACIRPSDNNM 

       730        740        750        760        770        780 
GRSIKLTHWM ELSKKYLGVE PEDWWKFVRN EADLPLAKRE ELLKRLEAEQ GWEIDWKRKK 

       790        800 
IISGPKIKFD VSAQPTNLKR LCKEA 

« Hide

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AE010299 Genomic DNA. Translation: AAM07741.1.
RefSeqNP_619261.1.

3D structure databases

SMRQ8THW2. Positions 43-804.
ModBaseSearch...

Genome annotation databases

GeneID1476293.
GenomeReviewsGene locus MA_4399 in contig AE010299_GR.
KEGGmac:MA4399.
NMPDRfig|188937.1.peg.4287.

Organism-specific databases

CMRSearch...

Phylogenomic databases

HOGENOMHBG539676.

Enzyme and pathway databases

BioCycMACE188937:MA4399-MONOMER.
BRENDA1.2.99.2. 275708.

Family and domain databases

HAMAPMF_01137. CdhA.
[Tree]
InterProIPR017896. 4Fe4S_Fe-S-bd.
IPR017900. 4Fe4S_Fe_S_CS.
IPR004460. CO_DH/Ac-CoA_synth_asu.
IPR016101. CO_DH_a-bundle.
IPR009051. Helical_ferredxn.
IPR004137. Prismane.
IPR011254. Prismane-like.
IPR016099. Prismane-like_a/b-sand.
[Graphical view]
Gene3DG3DSA:1.20.1270.30. CO_DH_a-bundle. 1 hit.
G3DSA:3.40.50.2030. Prismane-like_a/b-sand. 2 hits.
PfamPF03063. Prismane. 2 hits.
[Graphical view]
TIGRFAMsTIGR00314. cdhA. 1 hit.
PROSITEPS00198. 4FE4S_FER_1. 1 hit.
PS51379. 4FE4S_FER_2. 2 hits.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameACDA3_METAC
AccessionPrimary (citable) accession number: Q8THW2
Entry history
Integrated into UniProtKB/Swiss-Prot: November 21, 2003
Last sequence update: June 1, 2002
Last modified: January 19, 2010
This is version 53 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)

Relevant documents

PATHWAY comments

Index of metabolic and biosynthesis pathways

SIMILARITY comments

Index of protein domains and families

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents