Accession numbers for flavodoxins and flavodoxin-like domains

Compiled by Kirill N. Degtyarenko (

last modified:

Flavodoxin/FNR fusion proteins

Species abbreviations

Flavodoxins act in various electron-transport systems as functional analogues of ferredoxins. Although flavodoxins were found only in some bacteria and algae, these proteins share a similarity with a number of protein domains of both prokaryotic and eukaryotic origin.

A. Flavodoxins

 Gene   Species      PIR     SwissProt       GenBank/EMBL/DDBJ            PRF   
flox      Ana  S04600  S18374  P11241  X14577                          1803199A
               S20298                                                  1510361A
          Ann  A28670          P10340  M19116                          1407178A
          Aqu  B47673          P31158  M88253 
          Cab  A38177          P18855  M36770                          1718226A
          Cbe  A00332          P00322                                  741330A
          Ccr  S06648          P14070                                  1602130A
          Clp  A61338
          Dde  S17000          P26492  X59438                          1715184A
                               P80312                                  2010234A
          Dgi  S24311          Q01095  X64766                          1816170A
               S24310          Q01096  X64765                          1816170B
          Dsa  A34640          P18086  M35475                          1609080A
          Dvu  A31991          P00323  J04033  D88493                  1414296A
fldA      Eco  A37319          P23243  M59426                          1710228A
fldA      Hin                  P44562  U32704  L44836  U00071  U32813
          Kpn                          L23871

fldB      Eco                  P41050  Z48060
          Mel  A92137          P00321                                  711671A
          Nos  PA0004          P35707 
          Rca  S47516          P18607  X54054                          1616378A
          Sty                          U92524
          Syn  S38632          P27319  Z27091  L25881                  2016325A

nifF      Azc  S17461          P23001  M73019
          Azv  A29935          P00324  M20568  J03519                  1403371A
          Eag  A39414          P28579  M38221                          1713307A
               B39414                                                  1713307B
          Kpn  S02511          P04668  X03214  X13303  M23868          1202202A
          Rca                  P52967  L42290

ORF14     Rca  S39896                  X72888
ORFU1     Rca                          D13625

MIPS protein superfamily: 0043.0

MIPS protein domain family: 00062

Pfam family: PF00258

B. Flavodoxin/FNR fusion proteins: NADPH:P450 reductase, nitric oxide synthase and NADPH:sulphite reductase.

Species abbreviations

Ana = Anabaena species
Ann = Anacystis nidulans
Aqu = Agmenellum quadruplicatum
Azc = Azotobacter chroococcum
Azv = Azotobacter vinelandii
Cab = Clostridium acetobutylicum
Cbe = Clostridium beijerinckii
Ccr = Chondrus crispus
Clp = Clostridium pasteurianum
Dde = Desulfovibrio desulfuricans
Dgi = Desulfovibrio gigas
Dsa = Desulfovibrio salexigens
Dvu = Desulfovibrio vulgaris
Eag = Enterobacter agglomerans
Eco = Escherichia coli
Hin = Haemophilus influenzae
hum = human
Kpn = Klebsiella pneumoniae
Mel = Megasphaera elsdenii
Nos = Nostoc species
Rca = Rhodobacter capsulatus (Rhodopseudomonas capsulata)
Sty = Salmonella typhimurium
Syn = Synechocystis species

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