Accession numbers for proteins containing cytochrome b5-like domains

Compiled by Kirill N. Degtyarenko (kirill@icgeb.trieste.it)

last modified:

NADH:nitrate reductases
NAD(P)H:nitrate reductases
NADPH:nitrate reductases
Sulphite oxidases
Flavocytochrome b2 (L-lactate dehydrogenase)
Cytochrome b5/fatty acid desaturase fusion proteins
Fatty acid desaturase/cytochrome b5 fusion proteins

Species abbreviations

Cytochrome b5 is homologous to the haem-containing redox domain of a number of oxidoreductases, such as plant and fungal nitrate reductases, sulphite oxidase and yeast flavocytochrome b2 (L-lactate dehydrogenase).


A. Molybdopterin/cytochrome b5/FNR fusion proteins: plant and fungal nitrate reductases


 Gene   Species      PIR     SwissProt       GenBank/EMBL/DDBJ            PRF 

NADH:nitrate reductases (EC 1.6.6.1)

nia1      Ath  S01640  S35228  P11832  Z19050  J03240  X13434  X13436  1410332A
               S32018                                                  1501231A
                                                                       1501231B
                                                                       1916406A
          Bna                  P39867  D38219 
          Hvu  S17453          P27967  X57845
          mze  S19254  S51160  P17571  M27821  M77792
          Nta  S04838          P11605  X14058                          1713435A
          Osa  S07554          P16081  X15819  X15820                  1807350A
          Pvu  S25445          P39865  X53603

nia2      Ath  A31821          P11035  X13435  S45384  S45385  S45386
                                       J03240 
          Bna                  P39868  D38220
          Gma                  P39870  U13987
          Hvu  S17454          P27969  X57844
          Nta  S04839          P08509  X14059  X06134                  1713435B
          Pvu                  P39866  U01029

nia3      mze                  P49102  U20450

nia       Ast                          L40147
          Bba                  P43100  X84950
          Cin  S52301  S52302  P43101  X84102  X84103
          Cum  A41667          P17569  M33154                          1802323A
          Gma                  P54233  L23853  L23854  L23855
          Hbo                          L40148
          Hch                          L40149
          Hle                          L40150
          Les  JQ0373          P17570  X14060                          1605200A
          Lja  S47029          P39869  X80670
          Lte                  P39882  L16780
          Npl                          S61885 
          Phy  JN0665          P36859  L13691  L11563  U27320  U27321  1916244A
          rye                          L40154
          Sol  S11868          P23312  M32600  U08029  D86226          1710334A
                                                                       1808317A
          ART                          L27087

agnr1     Agi                          U64308
agnr2     Agi                          U64309
agnr3     Agi                          U64310

nit1      Chr                          M26074  M26075
          Chv  S17197          Q01170  X56771  U39930  U39931          1717152A
nitA      Voc  JC1422          P36841  X64136                          1819279A

niaA      Pin                  P39864  U14405
niaD      Ani  JQ1525          P36858  M77022                          1810302A
          Aor  JC4283                  D49701                          2121256A
          Apa                          U38948
          Bfu                          U43783
          Eni  JH0182          P22945  M58291                          1615178B
          Gfu                          X90699
          Lma                  P36842  U04445                          2018263A
          Pch                          U20779

nia       Fox  JN0803          P39863  Z22549                          1921204A
          Sce                          Z46660 

ynr1      Hpo                  P49050  Z49110                          2114300A

nar1      Uma  JN0804          Q05531  X67687                          1921205A

stNR2     Stu                          U76701

NAD(P)H:nitrate reductases (EC 1.6.6.2)

nia1      Bpe  S15959          P27783  X54097                          1715328A
nar7      Hvu  S16895          P27968  X60173                          1718322A
nar       mze  S24544          P39871  X64446

NADPH:nitrate reductases (EC 1.6.6.3)

nit3      Ncr  S16292  S34796  P08619  X61303                          1714355A

MIPS protein superfamily: 0132.0

MIPS protein domain families: 00006, 00050, 00259

Pfam families: PF00173, PF00174, PF00175


B. Cytochrome b5/molybdopterin fusion proteins: sulphite oxidases (EC 1.8.3.1)


          chi  A34180  S07219  P07850  X52559                          1602197A
               S10446
          rat                  Q07116  L05084                          2004361A
          hum  S55874          P51687  L31573                          1602129A

MIPS protein superfamily: 0143.0

MIPS protein domain families: 00006, 00259

Pfam families: PF00173, PF00174


C. Cytochrome b5/(ß/alpha)8 barrel fusion proteins: flavocytochrome b2 (L-lactate dehydrogenase, EC 1.1.2.3)


          Sce  A24583          P00175  X03215  Z46729                  1112161A
                                                                       1202254A
          Han  S06600          P09437  X16051                          1402232A

MIPS protein family: 0071.0

MIPS protein domain families: 00006, 00034

Pfam family: PF00173


D. Cytochrome b5/fatty acid desaturase fusion proteins

          Hea                          X87143
          Cel                          Z81122

E. Fatty acid desaturase/cytochrome b5 fusion proteins

Ole1      Ccu                          Y10421  Y10422
          Hca  S52745                  X85963
          Hca  S52746                  X85962
          Sce  A23675          P21147  J05676                          1702302A

MIPS protein domain families: 00006, 00320

Pfam family: PF00173


To the cytochrome b5 page ( ).


Species abbreviations

Ani = Aspergillus niger
Aor = Aspergillus oryzae
Apa = Aspergillus parasiticus
ART = artificial gene
Ast = Avena strigosa
Ath = Arabidopsis thaliana
Bba = Beauveria bassiana
Bfu = Botryotinia fuckeliana
Bna = Brassica napus (rape)
Bpe = Betula pendula (white birch)
Ccu = Cryptococcus curvatus
Cel = Caenorhabditis elegans (nematode worm)
chi = chicken
Chr = Chlamydomonas reinhardtii 
Chv = Chlorella vulgaris (Chlorella kessleri)
Cin = Cichorium intybus
Cum = Cucurbita maxima (winter squash)
Eni = Emericella nidulans (syn. Aspergillus nidulans)
Fox = Fusarium oxysporum
Gfu = Gibberella fujikuroi
Gma = Glycine max (soybean)
Han = Hansenula anomala (syn. Candida pelliculosa)
Hbo = Hordeum bogdanii
Hca = Histoplasma capsulatum (Ajellomyces capsulata)
Hch = Hordeum chilense
Hea = Helianthus annuus
Hle = Hordeum lechleri
Hpo = Hansenula polymorpha
hum = human
Hvu = Hordeum vulgare (barley)
Les = Lycopersicon esculentum (tomato)
Lja = Lotus japonicus
Lma = Leptosphaeria maculans
Lte = Lotus tetragonolobus (winged bean)
mze = maize (Zea mays)
Ncr = Neurospora crassa
Npl = Nicotiana plumbaginifolia (tobacco)
Nta = Nicotiana tabacum (tobacco)
Osa = Oryza sativa (rice)
Pch = Penicillium chrysogenum
Pin = Phytophthora infestans
Phy = Petunia hybrida 
Pvu = Phaseolus vulgaris (French bean)
rat = rat
rye = rye (Secale cereale)
Sce = Saccharomyces cerevisiae (baker's yeast)
Sol = Spinacia oleracea (spinach)
Stu = Solanum tuberosum
Uma = Ustilago maydis (smut fungus)
Voc = Volvox carteri 


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