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Table 3 N. simplex VKM Ac-2033D genes whose products taking part in steroid degradation, predicted

From: Different genome-wide transcriptome responses of Nocardioides simplex VKM Ac-2033D to phytosterol and cortisone 21-acetate

Step

Enzyme annotation

M. tub

R. jostii

C. testosteroni

References

N. simplex

Cluster

Regulon

Phyt

Regulation

 

TetR transcriptional repressor

kstR

  

[2]

KR76_12270

B

KstR

 
 

TetR transcriptional repressor

kstR2

  

[2]

KR76_25115

C

KstR2

 

A-ring activation

 I-II

cholesterol oxidase

cho

  

[56]

KR76_09550

 

KstR

+

 I-II

5-∆4–3-ketosteroid isomerase

ksi

  

[57]

KR76_23530

 

KstR

+

[57]

KR76_24125

 

KstR

 

Cholesterol side chain degradation

 III-V

cytochrome P450 125

cyp125

  

[10, 58]

KR76_14335

A

KstR

+

 V-VI

3-oxocholest-4-en-26-oate-CoA ligase

fadD19

  

[59]

KR76_14210

A

KstR

+

 VI-VII

Acyl-coA dehydrogenases

chsE4–5 (fadE26–27)

  

[60]

KR76_14175-KR76_14180

А

KstR

+

 VII-VIII

2-enoyl-CoA hydratase

echA19

  

[6]

KR76_14215

A

KstR

+

 IX-X;

 XI-XII

aldol lyase

ltp3

  

[12]

KR76_14285

А

KstR

+

aldol lyase

ltp4

  

KR76_14280

А

KstR

+

 XII-XIII

steroid-22-oyl-CoA synthetase

fadD17

casI

 

[61]

KR76_14185

A

KstR

 

 XIII-XIV

acyl-CoA dehydrogenase

chsE3 (fadE34)

  

[60, 62]

KR76_12295

B

KstR

+

 XIV-XV

3α,7α,12α-trihydroxy-5β-chol-22-en-24-oyl-CoA hydratase

hsd4B,

Rv3538

casD

 

[4, 61, 63]

KR76_14505

A

KstR

+

 XV-XVI

dehydrogenase

hsd4A

  

[4]

KR76_12260

В

KstR

 

 XIV-XVII

3-ketoacyl-CoA thiolase

fadA5

casB

 

[64]

KR76_14340

А

KstR

+

 XVII-XVIII;

igr-operon

7α,12α-dihydroxy-23,24-bisnorchola-1,4-dien-22-oyl-CoA dehydrogenase

chsE2 (fadE29)

casL

 

[65]

KR76_12325

B

KstR

+

acetyl-CoA acetyltransferase

chsH2

casM

 

[66, 67]

KR76_12330

B

KstR

+

acyl dehydratase

 

casN

 

[66]

KR76_12335

B

KstR

 

beta-hydroxyacyl-ACP dehydratase

chsH1

casO

 

[66, 67]

KR76_12340

B

KstR

+

3-ketoacyl-CoA thiolase

ltp2

casP

 

[66]

KR76_12345

B

KstR

+

Opening of B-ring

 XVIII-XIX; XX-XXI

Δ-3-ketosteroid dehydrogenase

with preference for 9-OH-AD and testosterone

kstD

kstD1

 

[54, 68]

KR76_02655

 

KstR

+

KR76_27115

 

+

Δ-3-ketosteroid dehydrogenase

with preference for progesterone

kstD

kstD2

 

[69]

KR76_27125

D

Acin1,3

+

Δ-3-ketosteroid dehydrogenase

with preference for saturated steroid substrates

kstD

kstD3

tesH

[54, 70]

KR76_14500

A

KstR

+

 XVIII-XX; XIX-XXI

3-ketosteroid 9α-hydroxylase, oxygenase subunit

kshA

  

[71]

KR76_14170

A

KstR

+

KR76_27070

  

+

3-ketosteroid 9α-hydroxylase, reductase subunit

kshB

  

KR76_14160

A

KstR

 

KR76_27080

   

eCleavage of A-ring

 XXII-XXIII

flavin-dependent monooxygenase

hsaA

 

tesA1A2

[18, 72]

KR76_14480

A

KstR

+

 

hsaB

 

KR76_14465

A

KstR

 

KR76_27090

D

  

 XXIII-XXIV

extradiol dioxygenase

hsaC

 

tesB

[72, 73]

KR76_14470

A

KstR

+

KR76_27095

D

 

+

 XXIV-XXV

carbon–carbon hydrolase

hsaD

 

tesD

[19, 72]

KR76_14475

A

KstR

+

KR76_27085

D

  

 XXV-XXVI

hydratase

hsaE

 

tesE

[17, 74]

KR76_14495

A

KstR

 

KR76_24180

  

+

 XXVI-Propanal

4-hydroxy-2-oxovalerate aldolase

hsaF

 

tesG

KR76_14485

A

KstR

+

KR76_24170

  

+

 Propanal-Propionate

acetaldehyde dehydrogenase, acetylating

hsaG

 

tesF

KR76_14490

A

KstR

+

KR76_24175

  

+

Ring D degradation

 XVII-XVIII

HIP-CoA synthetase

fadD3

 

scdA

[75, 76]

KR76_25120

С

KstR2

+

 XVII-XIX

5-Oxo HIC-CoA oxidase

ipdF

 

scdG

[20, 76]

KR76_14435

A

KstR2

+

 XXIX-XXX

COCHEA-CoA hydrolase, α-subunit

ipdA

 

scdL1L2

[20, 76]

KR76_14365

A

KstR2

+

KR76_25105

С

KstR2

+

COCHEA-CoA hydrolase, β-subunit

ipdB

 

KR76_14370

A

KstR2

+

KR76_25110

С

KstR2

+

 XXX-XXXI

acyl-CoA dehydrogenase

fadE30

 

scdC1C2

[76, 77]

KR76_14440

A

KstR2

+

 XXXI-XXXII

acyl-CoA hydrolase

  

scdD

[76]

    

 XXXII-XXXIII

dehydrogenase,

oxidized a hydroxyl in propionate chain

hsd4A

 

scdE

[76]

KR76_14350

A

KstR2

+

 XXXIII-XXXIV

acetyl-CoA acetyltransferase

fadA6

 

scdF

[20, 76]

KR76_14430

A

KstR2

+

 XXXIV-XXXV;

XXXVI-XXXVII

5-Oxo HIC-CoA oxidase

ipdF

 

scdG

[20, 76]

KR76_14435

A

KstR2

+

 XXXIV-XXXVI;

XXXV-XXXVII

5-OH HIC-CoA reductase

ipdC

 

scdK

[20, 76]

KR76_14375

A

KstR2

+

Ring C degradation

 XXXVII-XXXVIII

HIEC-CoA hydrolase

echA20

 

scdY

[20, 76]

KR76_14360

A

KstR2

+

 XXXVIII-XXXIX

CoA transferase

ipdA

 

scdL1L2

[20, 76]

KR76_14365

A

KstR2

+

KR76_25105

С

KstR2

+

CoA transferase

ipdB

 

KR76_14370

A

KstR2

+

KR76_25110

С

KstR2

+

 XL-XLI

acyl-CoA dehydrogenases

fadE31, fadE32

ro04591-ro04593

 

[61, 78]

KR76_14445

KR76_14450

A

KstR2

+

acyl-CoA dehydrogenases

fadE33

KR76_14455

A

KstR2

+

 XLI-XLII

enoyl-CoA hydratase

echA13

 

scdN

[20, 76]

KR76_25020

С

KstR2

+

  1. Step – degradation step from Fig. 7
  2. Enzyme annotation – function of enzyme
  3. M. tub. – name of gene in M. tuberculosis investigations
  4. R. jostii - name of gene (or locus_tag) in R. jostii investigations
  5. C. testosteroni - name of gene in C. testosteroni investigations
  6. N. simplex - locus_tag of ortholog that is candidate gene for this function. Functions are predicted by the annotation, location, predicted regulon that ortholog belongs to and gene expression changes
  7. Cluster – cluster where gene is located in genome [27]
  8. Regulon – repressor whose binding site is predicted in the promoter of operon that ortholog belongs to
  9. Phyt – gene in N. simplex VKM Ac-2033D that is induced by phytolesterol (+)