MMM1_LACTC
ID MMM1_LACTC Reviewed; 447 AA.
AC C5DCI0;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 28-JUL-2009, sequence version 1.
DT 25-MAY-2022, entry version 63.
DE RecName: Full=Maintenance of mitochondrial morphology protein 1 {ECO:0000255|HAMAP-Rule:MF_03103};
GN Name=MMM1 {ECO:0000255|HAMAP-Rule:MF_03103};
GN OrderedLocusNames=KLTH0B03234g;
OS Lachancea thermotolerans (strain ATCC 56472 / CBS 6340 / NRRL Y-8284)
OS (Yeast) (Kluyveromyces thermotolerans).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Lachancea.
OX NCBI_TaxID=559295;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 56472 / CBS 6340 / NRRL Y-8284;
RX PubMed=19525356; DOI=10.1101/gr.091546.109;
RG The Genolevures Consortium;
RA Souciet J.-L., Dujon B., Gaillardin C., Johnston M., Baret P.V.,
RA Cliften P., Sherman D.J., Weissenbach J., Westhof E., Wincker P., Jubin C.,
RA Poulain J., Barbe V., Segurens B., Artiguenave F., Anthouard V.,
RA Vacherie B., Val M.-E., Fulton R.S., Minx P., Wilson R., Durrens P.,
RA Jean G., Marck C., Martin T., Nikolski M., Rolland T., Seret M.-L.,
RA Casaregola S., Despons L., Fairhead C., Fischer G., Lafontaine I., Leh V.,
RA Lemaire M., de Montigny J., Neuveglise C., Thierry A., Blanc-Lenfle I.,
RA Bleykasten C., Diffels J., Fritsch E., Frangeul L., Goeffon A.,
RA Jauniaux N., Kachouri-Lafond R., Payen C., Potier S., Pribylova L.,
RA Ozanne C., Richard G.-F., Sacerdot C., Straub M.-L., Talla E.;
RT "Comparative genomics of protoploid Saccharomycetaceae.";
RL Genome Res. 19:1696-1709(2009).
CC -!- FUNCTION: Component of the ERMES/MDM complex, which serves as a
CC molecular tether to connect the endoplasmic reticulum (ER) and
CC mitochondria. Components of this complex are involved in the control of
CC mitochondrial shape and protein biogenesis, and function in
CC nonvesicular lipid trafficking between the ER and mitochondria. The
CC MDM12-MMM1 subcomplex functions in the major beta-barrel assembly
CC pathway that is responsible for biogenesis of all outer membrane beta-
CC barrel proteins, and acts in a late step after the SAM complex. The
CC MDM10-MDM12-MMM1 subcomplex further acts in the TOM40-specific pathway
CC after the action of the MDM12-MMM1 complex. Essential for establishing
CC and maintaining the structure of mitochondria and maintenance of mtDNA
CC nucleoids. {ECO:0000255|HAMAP-Rule:MF_03103}.
CC -!- SUBUNIT: Homodimer. Component of the ER-mitochondria encounter
CC structure (ERMES) or MDM complex, composed of MMM1, MDM10, MDM12 and
CC MDM34. A MMM1 homodimer associates with one molecule of MDM12 on each
CC side in a pairwise head-to-tail manner, and the SMP-LTD domains of MMM1
CC and MDM12 generate a continuous hydrophobic tunnel for phospholipid
CC trafficking. {ECO:0000255|HAMAP-Rule:MF_03103}.
CC -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane
CC {ECO:0000255|HAMAP-Rule:MF_03103}; Single-pass type I membrane protein
CC {ECO:0000255|HAMAP-Rule:MF_03103}. Note=The ERMES/MDM complex localizes
CC to a few discrete foci (around 10 per single cell), that represent
CC mitochondria-endoplasmic reticulum junctions. These foci are often
CC found next to mtDNA nucleoids. {ECO:0000255|HAMAP-Rule:MF_03103}.
CC -!- DOMAIN: The SMP-LTD domain is a barrel-like domain that can bind
CC various types of glycerophospholipids in its interior and mediate their
CC transfer between two adjacent bilayers. {ECO:0000255|HAMAP-
CC Rule:MF_03103}.
CC -!- SIMILARITY: Belongs to the MMM1 family. {ECO:0000255|HAMAP-
CC Rule:MF_03103}.
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DR EMBL; CU928166; CAR21491.1; -; Genomic_DNA.
DR RefSeq; XP_002551929.1; XM_002551883.1.
DR AlphaFoldDB; C5DCI0; -.
DR SMR; C5DCI0; -.
DR STRING; 559295.C5DCI0; -.
DR EnsemblFungi; CAR21491; CAR21491; KLTH0B03234g.
DR GeneID; 8290762; -.
DR KEGG; lth:KLTH0B03234g; -.
DR eggNOG; ENOG502QUUW; Eukaryota.
DR HOGENOM; CLU_032730_2_0_1; -.
DR InParanoid; C5DCI0; -.
DR OMA; KWFVERC; -.
DR OrthoDB; 1248004at2759; -.
DR Proteomes; UP000002036; Chromosome B.
DR GO; GO:0032865; C:ERMES complex; IEA:UniProtKB-UniRule.
DR GO; GO:0030176; C:integral component of endoplasmic reticulum membrane; IEA:UniProtKB-UniRule.
DR GO; GO:0008289; F:lipid binding; IEA:UniProtKB-KW.
DR GO; GO:0006869; P:lipid transport; IEA:UniProtKB-KW.
DR GO; GO:0000002; P:mitochondrial genome maintenance; IEA:UniProtKB-UniRule.
DR GO; GO:0045040; P:protein insertion into mitochondrial outer membrane; IEA:UniProtKB-UniRule.
DR HAMAP; MF_03103; Mmm1; 1.
DR InterPro; IPR027537; Mmm1.
DR InterPro; IPR019411; MMM1_dom.
DR InterPro; IPR031468; SMP_LBD.
DR PANTHER; PTHR13466:SF5; PTHR13466:SF5; 1.
DR Pfam; PF10296; MMM1; 1.
DR PROSITE; PS51847; SMP; 1.
PE 3: Inferred from homology;
KW Endoplasmic reticulum; Lipid transport; Lipid-binding; Membrane;
KW Reference proteome; Transmembrane; Transmembrane helix; Transport.
FT CHAIN 1..447
FT /note="Maintenance of mitochondrial morphology protein 1"
FT /id="PRO_0000384233"
FT TOPO_DOM 1..109
FT /note="Lumenal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03103"
FT TRANSMEM 110..130
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03103"
FT TOPO_DOM 131..447
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03103"
FT DOMAIN 208..421
FT /note="SMP-LTD"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03103"
SQ SEQUENCE 447 AA; 50168 MW; 6CB6A264E617D668 CRC64;
MKSPNETSFT NHTLENASTF GADLSIESNE SLVSLDEYLS NTLPLHLQQL FLENLQKRQQ
GILESASDSI IEAVRDSSQQ KFQNGLHLSL DSGVGSKGSV FSAWSFAQGL VIGQLSVIVV
LIFFIKFFIF SEGPIKTEGP KGGKSGPKRD SAYVSPLLST STSHFLSSII KRGESDGADS
SENTDTDRKF SQINTILEKT YYNVETHSPE TLDWFNVLIG QTIQQFREEA LQKDNIVHSL
NNFIARKSGE LPQYLDTIKI TELDIGEDFP ILSNCRIQYS PNSNKQRLEA KIDIDLSDRL
ALGIETKLLV NYPKPFTAAL PIQLTVSIVR FQACLTVSLT TAEEFVPTSE NEASYGSENG
GYFLMFSFSP EYRMEFDVKS LIGARSKLQD IPKIGSLIES QIKKWFVERC VEPRFQFIKL
PSLWPRSKNT REEKTENDDI SMKSTDL
