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Protein

Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial

Gene

SDH2

Organism
Candida glabrata (strain ATCC 2001 / CBS 138 / JCM 3761 / NBRC 0622 / NRRL Y-65) (Yeast) (Torulopsis glabrata)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Protein inferred from homologyi

Functioni

Iron-sulfur protein (IP) subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q).By similarity

Catalytic activityi

Succinate + a quinone = fumarate + a quinol.

Cofactori

Protein has several cofactor binding sites:

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi74 – 741Iron-sulfur 1 (2Fe-2S)By similarity
Metal bindingi79 – 791Iron-sulfur 1 (2Fe-2S)By similarity
Metal bindingi82 – 821Iron-sulfur 1 (2Fe-2S)By similarity
Metal bindingi94 – 941Iron-sulfur 1 (2Fe-2S)By similarity
Metal bindingi166 – 1661Iron-sulfur 2 (4Fe-4S)By similarity
Metal bindingi169 – 1691Iron-sulfur 2 (4Fe-4S)By similarity
Metal bindingi172 – 1721Iron-sulfur 2 (4Fe-4S)By similarity
Metal bindingi176 – 1761Iron-sulfur 3 (3Fe-4S)By similarity
Binding sitei181 – 1811Ubiquinone; shared with DHSDBy similarity
Metal bindingi223 – 2231Iron-sulfur 3 (3Fe-4S)By similarity
Metal bindingi229 – 2291Iron-sulfur 3 (3Fe-4S)By similarity
Metal bindingi233 – 2331Iron-sulfur 2 (4Fe-4S)By similarity

GO - Molecular functioni

  1. 2 iron, 2 sulfur cluster binding Source: UniProtKB-KW
  2. 3 iron, 4 sulfur cluster binding Source: UniProtKB-KW
  3. 4 iron, 4 sulfur cluster binding Source: UniProtKB-KW
  4. electron carrier activity Source: InterPro
  5. metal ion binding Source: UniProtKB-KW
  6. succinate dehydrogenase (ubiquinone) activity Source: UniProtKB-EC

GO - Biological processi

  1. tricarboxylic acid cycle Source: UniProtKB-UniPathway
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Electron transport, Transport, Tricarboxylic acid cycle

Keywords - Ligandi

2Fe-2S, 3Fe-4S, 4Fe-4S, Iron, Iron-sulfur, Metal-binding

Enzyme and pathway databases

UniPathwayiUPA00223; UER01006.

Names & Taxonomyi

Protein namesi
Recommended name:
Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial (EC:1.3.5.1)
Alternative name(s):
Iron-sulfur subunit of complex II
Short name:
Ip
Gene namesi
Name:SDH2
Ordered Locus Names:CAGL0C03223g
OrganismiCandida glabrata (strain ATCC 2001 / CBS 138 / JCM 3761 / NBRC 0622 / NRRL Y-65) (Yeast) (Torulopsis glabrata)
Taxonomic identifieri284593 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeNakaseomycesNakaseomyces/Candida clade
ProteomesiUP000002428: Chromosome C

Subcellular locationi

Mitochondrion inner membrane By similarity; Peripheral membrane protein By similarity; Matrix side By similarity

GO - Cellular componenti

  1. mitochondrial inner membrane Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Membrane, Mitochondrion, Mitochondrion inner membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini? – 253Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrialPRO_0000010348
Transit peptidei1 – ?Mitochondrion

Interactioni

Subunit structurei

Component of complex II composed of four subunits: a flavoprotein (FP), an iron-sulfur protein (IP), and a cytochrome b composed of a large and a small subunit.By similarity

Structurei

3D structure databases

ProteinModelPortaliQ6FWS8.
SMRiQ6FWS8. Positions 16-251.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini23 – 114922Fe-2S ferredoxin-typePROSITE-ProRule annotationAdd
BLAST
Domaini156 – 186314Fe-4S ferredoxin-typePROSITE-ProRule annotationAdd
BLAST

Sequence similaritiesi

Contains 1 2Fe-2S ferredoxin-type domain.PROSITE-ProRule annotation
Contains 1 4Fe-4S ferredoxin-type domain.PROSITE-ProRule annotation

Keywords - Domaini

Transit peptide

Phylogenomic databases

HOGENOMiHOG000160590.
InParanoidiQ6FWS8.
KOiK00235.
OMAiDAAPFMQ.
OrthoDBiEOG7X9GJ0.

Family and domain databases

Gene3Di3.10.20.30. 1 hit.
InterProiIPR001041. 2Fe-2S_ferredoxin-type.
IPR006058. 2Fe2S_fd_BS.
IPR017896. 4Fe4S_Fe-S-bd.
IPR017900. 4Fe4S_Fe_S_CS.
IPR012675. Beta-grasp_dom.
IPR009051. Helical_ferredxn.
IPR004489. Succ_DH/fum_Rdtase_Fe-S.
IPR025192. Succ_DH/fum_Rdtase_N.
[Graphical view]
PfamiPF13085. Fer2_3. 1 hit.
[Graphical view]
SUPFAMiSSF46548. SSF46548. 1 hit.
SSF54292. SSF54292. 1 hit.
TIGRFAMsiTIGR00384. dhsB. 1 hit.
PROSITEiPS00197. 2FE2S_FER_1. 1 hit.
PS51085. 2FE2S_FER_2. 1 hit.
PS00198. 4FE4S_FER_1. 1 hit.
PS51379. 4FE4S_FER_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

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

Q6FWS8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MFMLRVSRRG LATATSVPRL KTFKIYRWNP DKPTEKPHLQ EYKVDLEDCG
60 70 80 90 100
PMVLDALLKI KNEQDATLTF RRSCREGICG SCAMNIGGAN TLACLCKIDQ
110 120 130 140 150
DESKTTKIYP LPHMFIVKDL VPDLTGFYQQ YKSIQPYLQR TDYPADGKEV
160 170 180 190 200
LQSIDDRKKL DGLYECILCA CCSTSCPSYW WNQEEYLGPA VLMQAYRWLI
210 220 230 240 250
DSRDQATKAR RTMLQNSMSL YRCHTIMNCT RTCPKGLNPG RSIAEIKKQL

AFD
Length:253
Mass (Da):29,054
Last modified:July 19, 2004 - v1
Checksum:i2557E1940B402EA3
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CR380949 Genomic DNA. Translation: CAG58222.1.
RefSeqiXP_445316.1. XM_445316.1.

Genome annotation databases

GeneIDi2886893.
KEGGicgr:CAGL0C03223g.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CR380949 Genomic DNA. Translation: CAG58222.1.
RefSeqiXP_445316.1. XM_445316.1.

3D structure databases

ProteinModelPortaliQ6FWS8.
SMRiQ6FWS8. Positions 16-251.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi2886893.
KEGGicgr:CAGL0C03223g.

Phylogenomic databases

HOGENOMiHOG000160590.
InParanoidiQ6FWS8.
KOiK00235.
OMAiDAAPFMQ.
OrthoDBiEOG7X9GJ0.

Enzyme and pathway databases

UniPathwayiUPA00223; UER01006.

Family and domain databases

Gene3Di3.10.20.30. 1 hit.
InterProiIPR001041. 2Fe-2S_ferredoxin-type.
IPR006058. 2Fe2S_fd_BS.
IPR017896. 4Fe4S_Fe-S-bd.
IPR017900. 4Fe4S_Fe_S_CS.
IPR012675. Beta-grasp_dom.
IPR009051. Helical_ferredxn.
IPR004489. Succ_DH/fum_Rdtase_Fe-S.
IPR025192. Succ_DH/fum_Rdtase_N.
[Graphical view]
PfamiPF13085. Fer2_3. 1 hit.
[Graphical view]
SUPFAMiSSF46548. SSF46548. 1 hit.
SSF54292. SSF54292. 1 hit.
TIGRFAMsiTIGR00384. dhsB. 1 hit.
PROSITEiPS00197. 2FE2S_FER_1. 1 hit.
PS51085. 2FE2S_FER_2. 1 hit.
PS00198. 4FE4S_FER_1. 1 hit.
PS51379. 4FE4S_FER_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiSDHB_CANGA
AccessioniPrimary (citable) accession number: Q6FWS8
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 31, 2004
Last sequence update: July 19, 2004
Last modified: January 7, 2015
This is version 88 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.