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Protein

Cytochrome c oxidase subunit 1

Gene

COX1

Organism
Physarum polycephalum (Slime mold)
Status
Reviewed-Annotation score: -Experimental evidence at transcript leveli

Functioni

Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1-3 form the functional core of the enzyme complex. CO I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit 2 and heme A of subunit 1 to the bimetallic center formed by heme A3 and copper B.

Catalytic activityi

4 ferrocytochrome c + O2 + 4 H+ = 4 ferricytochrome c + 2 H2O.

Pathwayi: oxidative phosphorylation

This protein is involved in the pathway oxidative phosphorylation, which is part of Energy metabolism.
View all proteins of this organism that are known to be involved in the pathway oxidative phosphorylation and in Energy metabolism.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi87Iron (heme A axial ligand)Curated1
Metal bindingi266Copper BCurated1
Metal bindingi270Copper BCurated1
Metal bindingi315Copper BCurated1
Metal bindingi316Copper BCurated1
Metal bindingi401Iron (heme A3 axial ligand)Curated1
Metal bindingi403Iron (heme A axial ligand)Curated1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionOxidoreductase
Biological processElectron transport, Respiratory chain, Transport
LigandCopper, Heme, Iron, Metal-binding

Enzyme and pathway databases

UniPathwayiUPA00705

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome c oxidase subunit 1 (EC:1.9.3.1)
Alternative name(s):
Cytochrome c oxidase polypeptide I
Gene namesi
Name:COX1
Encoded oniMitochondrion
OrganismiPhysarum polycephalum (Slime mold)
Taxonomic identifieri5791 [NCBI]
Taxonomic lineageiEukaryotaAmoebozoaMycetozoaMyxogastriaMyxogastromycetidaePhysariidaPhysaraceaePhysarum

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei41 – 61HelicalSequence analysisAdd BLAST21
Transmembranei89 – 109HelicalSequence analysisAdd BLAST21
Transmembranei126 – 146HelicalSequence analysisAdd BLAST21
Transmembranei171 – 191HelicalSequence analysisAdd BLAST21
Transmembranei209 – 229HelicalSequence analysisAdd BLAST21
Transmembranei260 – 280HelicalSequence analysisAdd BLAST21
Transmembranei292 – 312HelicalSequence analysisAdd BLAST21
Transmembranei333 – 353HelicalSequence analysisAdd BLAST21
Transmembranei363 – 383HelicalSequence analysisAdd BLAST21
Transmembranei405 – 425HelicalSequence analysisAdd BLAST21
Transmembranei467 – 487HelicalSequence analysisAdd BLAST21
Transmembranei508 – 528HelicalSequence analysisAdd BLAST21

GO - Cellular componenti

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001833901 – 594Cytochrome c oxidase subunit 1Add BLAST594

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Cross-linki266 ↔ 2701'-histidyl-3'-tyrosine (His-Tyr)By similarity

Proteomic databases

PRIDEiQ07434

Structurei

3D structure databases

ProteinModelPortaliQ07434
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

CDDicd01663 Cyt_c_Oxidase_I, 1 hit
Gene3Di1.20.210.10, 2 hits
InterProiView protein in InterPro
IPR023616 Cyt_c_oxase-like_su1_dom
IPR036927 Cyt_c_oxase-like_su1_sf
IPR000883 Cyt_C_Oxase_1
IPR023615 Cyt_c_Oxase_su1_BS
IPR033944 Cyt_c_oxase_su1_dom
PANTHERiPTHR10422 PTHR10422, 1 hit
PfamiView protein in Pfam
PF00115 COX1, 1 hit
PRINTSiPR01165 CYCOXIDASEI
SUPFAMiSSF81442 SSF81442, 2 hits
PROSITEiView protein in PROSITE
PS50855 COX1, 1 hit
PS00077 COX1_CUB, 1 hit

Sequencei

Sequence statusi: Complete.

Q07434-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSSIPFDQKT ISLLGMKMDT SDFYTFADRW LFSTNHKYIG TLYLLFSIGA
60 70 80 90 100
GLAGLALSVI MRMELASCGD LILNSNYQLY NTIVTAHALI MIFFFVMPAL
110 120 130 140 150
IGGFGNWFVP LLMGAPDMAF PRLNNISLWL LPSSLILLLL SSYVEIGAGT
160 170 180 190 200
GWTVYPPLSS ITGHSGPSVD LAIFSLHLAG VSSMLGAINF ICTIKNMRLK
210 220 230 240 250
GLTGERLSLF VWAVLVTVIL LLLSLPVLAG AITMLLTDRN FNTSFFDATG
260 270 280 290 300
GGDPILYQHL FWFFGHPEVY ILILPGFGIV SIIIQAYANK AIFGYLGMVY
310 320 330 340 350
AMLSIGILGF MVWAHHMYTV GLDVDTRAYF TAATMIIAVP TGIKIFSWLA
360 370 380 390 400
TLFGSYLKLR TPLLFILGFL ILFTLGGLSG VVLANSGLDI AFHDTYYVVA
410 420 430 440 450
HFHYVLSMGA VFAAFAAFYH WFSIIKSFTT YEPHEWEFVY NPFELRKKIP
460 470 480 490 500
YRRTDFSYLE TAGILHFITT FIGVNLTFFP MHLLGLAGMP RRIPDYPDAY
510 520 530 540 550
LHFNLISSYG SFVTLVSTIM FFMFGVVFNY NLFINGFPSM FYIIKPLIKI
560 570 580 590
TFFRIKQIIQ GNNECLNSIS KELTILILHV KRLSKLSVNN WSIA
Length:594
Mass (Da):66,514
Last modified:August 14, 2001 - v2
Checksum:i8D8A60C44620D5FF
GO

RNA editingi

Modified position: not applicable.
Some positions are modified by RNA editing via nucleotide insertion and conversion.1 Publication

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L14769 mRNA Translation: AAA71993.1

Keywords - Coding sequence diversityi

RNA editing

Similar proteinsi

Entry informationi

Entry nameiCOX1_PHYPO
AccessioniPrimary (citable) accession number: Q07434
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 1, 1996
Last sequence update: August 14, 2001
Last modified: May 23, 2018
This is version 101 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)

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