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Q8JGM4

- QSOX1_CHICK

UniProt

Q8JGM4 - QSOX1_CHICK

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Protein

Sulfhydryl oxidase 1

Gene

QSOX1

Organism
Gallus gallus (Chicken)
Status
Reviewed - Annotation score: 5 out of 5- Experimental evidence at protein leveli

Functioni

Catalyzes the oxidation of sulfhydryl groups in peptide and protein thiols to disulfides with the reduction of oxygen to hydrogen peroxide. May contribute to disulfide bond formation in a variety of secreted proteins (By similarity).By similarity

Catalytic activityi

2 R'C(R)SH + O2 = R'C(R)S-S(R)CR' + H2O2.

Cofactori

Binds 1 FAD per subunit.By similarity

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei80 – 801NucleophileBy similarity
Active sitei83 – 831NucleophileBy similarity
Binding sitei415 – 4151FADBy similarity
Binding sitei422 – 4221FADBy similarity
Binding sitei426 – 4261FADBy similarity
Binding sitei461 – 4611FADBy similarity
Binding sitei465 – 4651FADBy similarity
Binding sitei510 – 5101FADBy similarity
Binding sitei513 – 5131FADBy similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi488 – 4958FADBy similarity

GO - Molecular functioni

  1. flavin-linked sulfhydryl oxidase activity Source: UniProtKB
  2. protein disulfide isomerase activity Source: UniProtKB

GO - Biological processi

  1. cell redox homeostasis Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Ligandi

FAD, Flavoprotein

Names & Taxonomyi

Protein namesi
Recommended name:
Sulfhydryl oxidase 1 (EC:1.8.3.2)
Alternative name(s):
Quiescin Q6
Gene namesi
Name:QSOX1
Synonyms:QSCN6, QSOX, SOX
OrganismiGallus gallus (Chicken)
Taxonomic identifieri9031 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiTestudines + Archosauria groupArchosauriaDinosauriaSaurischiaTheropodaCoelurosauriaAvesNeognathaeGalliformesPhasianidaePhasianinaeGallus
ProteomesiUP000000539: Unplaced

Subcellular locationi

GO - Cellular componenti

  1. extracellular space Source: UniProtKB
  2. extracellular vesicular exosome Source: Ensembl
  3. integral component of Golgi membrane Source: Ensembl
Complete GO annotation...

Keywords - Cellular componenti

Golgi apparatus, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 4242Sequence AnalysisAdd
BLAST
Chaini43 – 743701Sulfhydryl oxidase 1PRO_0000249537Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Disulfide bondi80 ↔ 83Redox-activePROSITE-ProRule annotation
Glycosylationi254 – 2541N-linked (GlcNAc...)Sequence Analysis
Glycosylationi288 – 2881N-linked (GlcNAc...)Sequence Analysis
Glycosylationi295 – 2951N-linked (GlcNAc...)Sequence Analysis
Glycosylationi371 – 3711N-linked (GlcNAc...)Sequence Analysis
Glycosylationi401 – 4011N-linked (GlcNAc...)Sequence Analysis
Disulfide bondi407 ↔ 419PROSITE-ProRule annotation
Disulfide bondi459 ↔ 462PROSITE-ProRule annotation
Disulfide bondi519 ↔ 522PROSITE-ProRule annotation

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

PRIDEiQ8JGM4.

Expressioni

Tissue specificityi

Expressed in testis, placenta, pancreas, lung, ovary, endometrium, but not in brain, liver and kidney tissues. Higher expression in epithelial cells. Highly expressed in the active secretory tissue of the oviduct.1 Publication

Gene expression databases

ExpressionAtlasiQ8JGM4. baseline.

Interactioni

Subunit structurei

Homodimer.1 Publication

Protein-protein interaction databases

STRINGi9031.ENSGALP00000006256.

Structurei

3D structure databases

ProteinModelPortaliQ8JGM4.
ModBaseiSearch...
MobiDBiSearch...

Transmembrane

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei707 – 72721HelicalSequence AnalysisAdd
BLAST

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini43 – 166124ThioredoxinPROSITE-ProRule annotationAdd
BLAST
Domaini410 – 513104ERV/ALR sulfhydryl oxidasePROSITE-ProRule annotationAdd
BLAST

Compositional bias

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Compositional biasi578 – 60326Glu-richAdd
BLAST
Compositional biasi680 – 6845Poly-Glu

Sequence similaritiesi

Contains 1 ERV/ALR sulfhydryl oxidase domain.PROSITE-ProRule annotation
Contains 1 thioredoxin domain.PROSITE-ProRule annotation

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiNOG237986.
HOGENOMiHOG000231631.
HOVERGENiHBG080360.
InParanoidiQ8JGM4.
KOiK10758.
PhylomeDBiQ8JGM4.

Family and domain databases

Gene3Di1.20.120.310. 1 hit.
3.40.30.10. 1 hit.
InterProiIPR017905. ERV/ALR_sulphydryl_oxidase.
IPR012336. Thioredoxin-like_fold.
IPR013766. Thioredoxin_domain.
[Graphical view]
PfamiPF04777. Evr1_Alr. 1 hit.
PF00085. Thioredoxin. 1 hit.
[Graphical view]
SUPFAMiSSF52833. SSF52833. 1 hit.
SSF69000. SSF69000. 1 hit.
PROSITEiPS51324. ERV_ALR. 1 hit.
PS51352. THIOREDOXIN_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q8JGM4-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MWRRRARSGG GGGGGGGGAA PRCRWWPAVL ALLAAALPAA RSRSLYSPSD
60 70 80 90 100
PLELLGADTA ERRLLGSPSA WAVEFFASWC GHCIHFAPTW RALAEDVREW
110 120 130 140 150
RPAVMIAALD CADEANQQVC ADFGITGFPT LKFFRAFSKK AEDGIRIAHP
160 170 180 190 200
TATVADLRRA IITNLEQSGD AWPPACPPLE PASAEEVRSF FHRNTERYLA
210 220 230 240 250
LIFEQSNSFV GREVALDLLQ YENVAVRRVL SSEEELVEKF GVTTFPSAYL
260 270 280 290 300
LLRNGSFSRL PVHAEARSFY TYYLQTLSGV TRGSYRLNVT GSAINETRAL
310 320 330 340 350
QPAQADRSKV YVADLESTVH YTLRVEAGRP AVLAGAQLAA LKCYVATLAK
360 370 380 390 400
YFPGRPSVQT FLQSLDSWLR NWTEPELPRS ALKEAVKNKE DASPAAVLPT
410 420 430 440 450
NVTWVGCRGS EPHFRGYPCG LWTIFHLLTV QAAQGGPDEE LPLEVLNTMR
460 470 480 490 500
CYVKHFFGCQ ECAQHFEAMA AKSMDQVKSR REAVLWLWSH HNEVNARLAG
510 520 530 540 550
GDTEDPQFPK LQWPPPDMCP QCHREERGVH TWDEAAVLSF LKEHFSLGNL
560 570 580 590 600
YLDHAIPIPM AGEEAAASAR LSTAGLREKE EEERKEEEEE GEKETEKPHR
610 620 630 640 650
EGETGRPGSS ELRRPSIVRR NPRLRALGED IVDLDSFSEQ HFKSKALRAA
660 670 680 690 700
GRHRRLSKRD TVALHHDAGW ERLQVPESRE EEEEGGVLRR SPWLRVLGLG
710 720 730 740
FSRLDVSLCI ALYFLSSMCL LGMYTFFRLR TRARKGRPGF PVA
Length:743
Mass (Da):83,079
Last modified:October 1, 2002 - v1
Checksum:i44512B7EBB0B9769
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AY112666 mRNA. Translation: AAM44079.1.
RefSeqiNP_989456.1. NM_204125.1.
UniGeneiGga.148.

Genome annotation databases

GeneIDi373914.
KEGGigga:373914.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AY112666 mRNA. Translation: AAM44079.1 .
RefSeqi NP_989456.1. NM_204125.1.
UniGenei Gga.148.

3D structure databases

ProteinModelPortali Q8JGM4.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 9031.ENSGALP00000006256.

Proteomic databases

PRIDEi Q8JGM4.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

GeneIDi 373914.
KEGGi gga:373914.

Organism-specific databases

CTDi 5768.

Phylogenomic databases

eggNOGi NOG237986.
HOGENOMi HOG000231631.
HOVERGENi HBG080360.
InParanoidi Q8JGM4.
KOi K10758.
PhylomeDBi Q8JGM4.

Miscellaneous databases

NextBioi 20813446.
PROi Q8JGM4.

Gene expression databases

ExpressionAtlasi Q8JGM4. baseline.

Family and domain databases

Gene3Di 1.20.120.310. 1 hit.
3.40.30.10. 1 hit.
InterProi IPR017905. ERV/ALR_sulphydryl_oxidase.
IPR012336. Thioredoxin-like_fold.
IPR013766. Thioredoxin_domain.
[Graphical view ]
Pfami PF04777. Evr1_Alr. 1 hit.
PF00085. Thioredoxin. 1 hit.
[Graphical view ]
SUPFAMi SSF52833. SSF52833. 1 hit.
SSF69000. SSF69000. 1 hit.
PROSITEi PS51324. ERV_ALR. 1 hit.
PS51352. THIOREDOXIN_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Sulfhydryl oxidases: emerging catalysts of protein disulfide bond formation in eukaryotes."
    Thorpe C., Hoober K.L., Raje S., Glynn N.M., Burnside J., Turi G.K., Coppock D.L.
    Arch. Biochem. Biophys. 405:1-12(2002) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, SUBUNIT, TISSUE SPECIFICITY.

Entry informationi

Entry nameiQSOX1_CHICK
AccessioniPrimary (citable) accession number: Q8JGM4
Entry historyi
Integrated into UniProtKB/Swiss-Prot: September 19, 2006
Last sequence update: October 1, 2002
Last modified: October 29, 2014
This is version 77 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3