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Protein

Steroid Delta-isomerase

Gene

ksi

Organism
Pseudomonas putida (Arthrobacter siderocapsulatus)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Catalytic activityi

A 3-oxo-Delta5-steroid = a 3-oxo-Delta4-steroid.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei16Proton donor1
Active sitei40Proton acceptor1
Binding sitei103Substrate1 Publication1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionIsomerase
Biological processLipid metabolism, Steroid metabolism

Enzyme and pathway databases

BRENDAi5.3.3.1 5092

Names & Taxonomyi

Protein namesi
Recommended name:
Steroid Delta-isomerase (EC:5.3.3.1)
Alternative name(s):
Delta(5)-3-ketosteroid isomerase
Gene namesi
Name:ksi
OrganismiPseudomonas putida (Arthrobacter siderocapsulatus)
Taxonomic identifieri303 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaPseudomonadalesPseudomonadaceaePseudomonas

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi16Y → F: Reduces activity 2000-fold. Reduces activity 10000-fold; when associated with E-103; N-103 or L-103. 3 Publications1
Mutagenesisi16Y → S: Reduces activity 20-fold. 3 Publications1
Mutagenesisi32Y → S: Reduces activity 4-fold. 1 Publication1
Mutagenesisi57Y → S: Reduces activity 100-fold. 1
Mutagenesisi92W → A: Slightly reduces activity. Reduces protein stability. 1
Mutagenesisi103D → A or L: Reduces activity 100-fold. Reduces activity 10000-fold; when associated with F-16. 2 Publications1
Mutagenesisi103D → E: Slightly reduces activity. Reduces activity 10000-fold; when associated with F-16. 2 Publications1
Mutagenesisi103D → N: Reduces activity 4-fold. Reduces activity 10000-fold; when associated with F-16. 2 Publications1
Mutagenesisi125L → A: Slightly reduces activity and reduces protein stability; when associated with A-127. 1 Publication1
Mutagenesisi127V → A: Slightly reduces activity and reduces protein stability; when associated with A-125. 1 Publication1

Chemistry databases

ChEMBLiCHEMBL2321641
DrugBankiDB03619 Deoxycholic Acid
DB03515 Equilenin
DB01708 Prasterone

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000976461 – 131Steroid Delta-isomeraseAdd BLAST131

Proteomic databases

PRIDEiP07445

Expressioni

Inductioni

By steroids.

Interactioni

Subunit structurei

Homodimer.3 Publications

Chemistry databases

BindingDBiP07445

Structurei

Secondary structure

1131
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi6 – 22Combined sources17
Helixi25 – 31Combined sources7
Beta strandi32 – 41Combined sources10
Helixi49 – 61Combined sources13
Beta strandi62 – 64Combined sources3
Beta strandi67 – 72Combined sources6
Beta strandi78 – 107Combined sources30
Beta strandi113 – 119Combined sources7
Helixi122 – 124Combined sources3
Beta strandi125 – 127Combined sources3

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1C7HX-ray2.50A1-131[»]
1CQSX-ray1.90A/B1-131[»]
1DMMX-ray1.90A1-131[»]
1DMNX-ray2.05A1-131[»]
1DMQX-ray2.15A1-131[»]
1E3RX-ray2.50A/B1-131[»]
1E3VX-ray2.00A/B1-131[»]
1E97X-ray2.00A1-131[»]
1EA2X-ray1.80A1-131[»]
1GS3X-ray2.10A1-131[»]
1K41X-ray2.20A/B1-131[»]
1OGXX-ray2.00A/B1-131[»]
1OH0X-ray1.10A/B1-131[»]
1OHOX-ray1.90A1-131[»]
1OPYX-ray1.90A1-131[»]
1VZZX-ray2.30A/B1-131[»]
1W00X-ray2.20A/B1-131[»]
1W01X-ray2.20A/B1-131[»]
1W02X-ray2.30A1-131[»]
1W6YX-ray2.10A1-131[»]
2INXX-ray1.50A1-131[»]
2PZVX-ray1.25A/B/C/D1-131[»]
3CPOX-ray1.24A1-131[»]
3FZWX-ray1.32A/B1-131[»]
3IPTX-ray1.63A/B/C/D1-131[»]
3OWSX-ray1.71A/B/C/D1-131[»]
3OWUX-ray1.70A/B/C/D1-131[»]
3OWYX-ray2.30A/B/C/D/E/F/G/H1-131[»]
3OX9X-ray2.00A/B/C/D1-131[»]
3OXAX-ray1.89A/B/C/D1-131[»]
3RGRX-ray1.59A1-131[»]
3SEDX-ray1.30A3-127[»]
3T8NX-ray1.47A/B/D/F1-131[»]
3VGNX-ray1.30A/B1-131[»]
3VSYX-ray1.50A/B3-131[»]
4CDLX-ray2.50A1-131[»]
4K1UX-ray2.00A/B1-131[»]
4K1VX-ray1.80A1-131[»]
5AI1X-ray2.10A1-131[»]
5D81X-ray1.39A1-131[»]
5D82X-ray1.37A/B1-131[»]
5D83X-ray1.70A/B1-131[»]
5G2GX-ray1.60A/B2-128[»]
5KP1X-ray1.22A/B/C/D1-131[»]
5KP3X-ray1.70A/B1-131[»]
5KP4X-ray1.71A/B1-131[»]
ProteinModelPortaliP07445
SMRiP07445
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP07445

Family & Domainsi

Family and domain databases

InterProiView protein in InterPro
IPR032710 NTF2-like_dom_sf
IPR037401 SnoaL-like
PfamiView protein in Pfam
PF12680 SnoaL_2, 1 hit
SUPFAMiSSF54427 SSF54427, 1 hit

Sequencei

Sequence statusi: Complete.

P07445-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNLPTAQEVQ GLMARYIELV DVGDIEAIVQ MYADDATVED PFGQPPIHGR
60 70 80 90 100
EQIAAFYRQG LGGGKVRACL TGPVRASHNG CGAMPFRVEM VWNGQPCALD
110 120 130
VIDVMRFDEH GRIQTMQAYW SEVNLSVREP Q
Length:131
Mass (Da):14,536
Last modified:April 1, 1988 - v1
Checksum:i08711198C13CF014
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L13127 Genomic DNA Translation: AAA64437.1
PIRiA25216 SIPSDP

Similar proteinsi

Entry informationi

Entry nameiSDIS_PSEPU
AccessioniPrimary (citable) accession number: P07445
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 1, 1988
Last sequence update: April 1, 1988
Last modified: May 23, 2018
This is version 103 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing

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