ID   SDHF2_DICDI             Reviewed;         141 AA.
AC   Q54B20;
DT   08-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   24-MAY-2005, sequence version 1.
DT   25-MAY-2022, entry version 77.
DE   RecName: Full=Succinate dehydrogenase assembly factor 2, mitochondrial {ECO:0000255|HAMAP-Rule:MF_03057};
DE            Short=SDH assembly factor 2 {ECO:0000255|HAMAP-Rule:MF_03057};
DE            Short=SDHAF2 {ECO:0000255|HAMAP-Rule:MF_03057};
GN   ORFNames=DDB_G0293946;
OS   Dictyostelium discoideum (Slime mold).
OC   Eukaryota; Amoebozoa; Evosea; Eumycetozoa; Dictyostelia; Dictyosteliales;
OC   Dictyosteliaceae; Dictyostelium.
OX   NCBI_TaxID=44689;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AX4;
RX   PubMed=15875012; DOI=10.1038/nature03481;
RA   Eichinger L., Pachebat J.A., Gloeckner G., Rajandream M.A., Sucgang R.,
RA   Berriman M., Song J., Olsen R., Szafranski K., Xu Q., Tunggal B.,
RA   Kummerfeld S., Madera M., Konfortov B.A., Rivero F., Bankier A.T.,
RA   Lehmann R., Hamlin N., Davies R., Gaudet P., Fey P., Pilcher K., Chen G.,
RA   Saunders D., Sodergren E.J., Davis P., Kerhornou A., Nie X., Hall N.,
RA   Anjard C., Hemphill L., Bason N., Farbrother P., Desany B., Just E.,
RA   Morio T., Rost R., Churcher C.M., Cooper J., Haydock S., van Driessche N.,
RA   Cronin A., Goodhead I., Muzny D.M., Mourier T., Pain A., Lu M., Harper D.,
RA   Lindsay R., Hauser H., James K.D., Quiles M., Madan Babu M., Saito T.,
RA   Buchrieser C., Wardroper A., Felder M., Thangavelu M., Johnson D.,
RA   Knights A., Loulseged H., Mungall K.L., Oliver K., Price C., Quail M.A.,
RA   Urushihara H., Hernandez J., Rabbinowitsch E., Steffen D., Sanders M.,
RA   Ma J., Kohara Y., Sharp S., Simmonds M.N., Spiegler S., Tivey A.,
RA   Sugano S., White B., Walker D., Woodward J.R., Winckler T., Tanaka Y.,
RA   Shaulsky G., Schleicher M., Weinstock G.M., Rosenthal A., Cox E.C.,
RA   Chisholm R.L., Gibbs R.A., Loomis W.F., Platzer M., Kay R.R.,
RA   Williams J.G., Dear P.H., Noegel A.A., Barrell B.G., Kuspa A.;
RT   "The genome of the social amoeba Dictyostelium discoideum.";
RL   Nature 435:43-57(2005).
CC   -!- FUNCTION: Plays an essential role in the assembly of succinate
CC       dehydrogenase (SDH), an enzyme complex (also referred to as respiratory
CC       complex II) that is a component of both the tricarboxylic acid (TCA)
CC       cycle and the mitochondrial electron transport chain, and which couples
CC       the oxidation of succinate to fumarate with the reduction of ubiquinone
CC       (coenzyme Q) to ubiquinol. Required for flavinylation (covalent
CC       attachment of FAD) of the flavoprotein subunit of the SDH catalytic
CC       dimer. {ECO:0000255|HAMAP-Rule:MF_03057}.
CC   -!- SUBUNIT: Interacts with the flavoprotein subunit within the SDH
CC       catalytic dimer. {ECO:0000255|HAMAP-Rule:MF_03057}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion matrix {ECO:0000255|HAMAP-
CC       Rule:MF_03057}.
CC   -!- MISCELLANEOUS: This protein may be expected to contain an N-terminal
CC       transit peptide but none has been predicted. {ECO:0000255|HAMAP-
CC       Rule:MF_03057}.
CC   -!- SIMILARITY: Belongs to the SDHAF2 family. {ECO:0000255|HAMAP-
CC       Rule:MF_03057}.
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DR   EMBL; AAFI02000224; EAL60472.1; -; Genomic_DNA.
DR   RefSeq; XP_628896.1; XM_628894.1.
DR   AlphaFoldDB; Q54B20; -.
DR   SMR; Q54B20; -.
DR   STRING; 44689.DDB0266372; -.
DR   PaxDb; Q54B20; -.
DR   EnsemblProtists; EAL60472; EAL60472; DDB_G0293946.
DR   GeneID; 8629512; -.
DR   KEGG; ddi:DDB_G0293946; -.
DR   dictyBase; DDB_G0293946; -.
DR   eggNOG; KOG3326; Eukaryota.
DR   HOGENOM; CLU_1828946_0_0_1; -.
DR   InParanoid; Q54B20; -.
DR   OMA; NWASEAI; -.
DR   PhylomeDB; Q54B20; -.
DR   PRO; PR:Q54B20; -.
DR   Proteomes; UP000002195; Chromosome 6.
DR   GO; GO:0005759; C:mitochondrial matrix; IEA:UniProtKB-SubCell.
DR   GO; GO:0005739; C:mitochondrion; ISS:UniProtKB.
DR   GO; GO:0006121; P:mitochondrial electron transport, succinate to ubiquinone; ISS:UniProtKB.
DR   GO; GO:0034553; P:mitochondrial respiratory chain complex II assembly; IBA:GO_Central.
DR   GO; GO:0018293; P:protein-FAD linkage; ISS:UniProtKB.
DR   GO; GO:0006099; P:tricarboxylic acid cycle; IBA:GO_Central.
DR   Gene3D; 1.10.150.250; -; 1.
DR   HAMAP; MF_03057; SDHAF2; 1.
DR   InterPro; IPR005631; SDH.
DR   InterPro; IPR036714; SDH_sf.
DR   InterPro; IPR028882; SDHAF2.
DR   Pfam; PF03937; Sdh5; 1.
DR   SUPFAM; SSF109910; SSF109910; 1.
PE   3: Inferred from homology;
KW   Chaperone; Mitochondrion; Reference proteome.
FT   CHAIN           1..141
FT                   /note="Succinate dehydrogenase assembly factor 2,
FT                   mitochondrial"
FT                   /id="PRO_0000327581"
SQ   SEQUENCE   141 AA;  16471 MW;  2D5B07C83BED27BB CRC64;
     MFKSIKQIKS SIGFITTNTT RRNFCSNKIG GFTIKNVEDE SKIKINNEIS EIEKLRKKLL
     YQSKERGMLE NDLLLGSFAT LNIHKLTESQ LRDYNLLLQQ PDPDIFNWIL KKAEVPEEFE
     TEVLKLVQHH CKNDPLGYTR K