ID   HMC1_METTE              Reviewed;          93 AA.
AC   P12770;
DT   01-OCT-1989, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1989, sequence version 1.
DT   25-MAY-2022, entry version 81.
DE   RecName: Full=Chromosomal protein MC1;
OS   Methanosarcina thermophila.
OC   Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC   Methanosarcinales; Methanosarcinaceae; Methanosarcina.
OX   NCBI_TaxID=2210;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   STRAIN=ATCC 43170 / DSM 2906 / OCM 90 / CHTI-55;
RX   PubMed=2503033; DOI=10.1016/0167-4781(89)90021-3;
RA   Chartier F., Laine B., Belaiche D., Touzel J.-P., Sautiere P.;
RT   "Primary structure of the chromosomal protein MC1 from the archaebacterium
RT   Methanosarcina sp. CHTI 55.";
RL   Biochim. Biophys. Acta 1008:309-314(1989).
RN   [2]
RP   STRUCTURE BY NMR.
RC   STRAIN=ATCC 43170 / DSM 2906 / OCM 90 / CHTI-55;
RX   PubMed=15554704; DOI=10.1021/bi048382z;
RA   Paquet F., Culard F., Barbault F., Maurizot J.C., Lancelot G.;
RT   "NMR solution structure of the archaebacterial chromosomal protein MC1
RT   reveals a new protein fold.";
RL   Biochemistry 43:14971-14978(2004).
CC   -!- FUNCTION: Protects DNA against thermal denaturation and modulates
CC       transcription.
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DR   PIR; S05243; S05243.
DR   PDB; 1T23; NMR; -; A=1-93.
DR   PDB; 2KHL; NMR; -; A=1-93.
DR   PDB; 2NBJ; NMR; -; A=1-93.
DR   PDBsum; 1T23; -.
DR   PDBsum; 2KHL; -.
DR   PDBsum; 2NBJ; -.
DR   AlphaFoldDB; P12770; -.
DR   BMRB; P12770; -.
DR   SMR; P12770; -.
DR   EvolutionaryTrace; P12770; -.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0042262; P:DNA protection; IEA:InterPro.
DR   Gene3D; 3.10.470.10; -; 1.
DR   InterPro; IPR008674; MC1.
DR   InterPro; IPR036620; MC1_sf.
DR   Pfam; PF05854; MC1; 1.
DR   SUPFAM; SSF102875; SSF102875; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Direct protein sequencing; DNA-binding.
FT   CHAIN           1..93
FT                   /note="Chromosomal protein MC1"
FT                   /id="PRO_0000084003"
FT   REGION          1..44
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   STRAND          4..8
FT                   /evidence="ECO:0007829|PDB:1T23"
FT   TURN            10..13
FT                   /evidence="ECO:0007829|PDB:1T23"
FT   STRAND          17..23
FT                   /evidence="ECO:0007829|PDB:1T23"
FT   HELIX           26..34
FT                   /evidence="ECO:0007829|PDB:1T23"
FT   STRAND          39..41
FT                   /evidence="ECO:0007829|PDB:1T23"
FT   STRAND          44..49
FT                   /evidence="ECO:0007829|PDB:1T23"
FT   TURN            50..53
FT                   /evidence="ECO:0007829|PDB:1T23"
FT   STRAND          54..60
FT                   /evidence="ECO:0007829|PDB:1T23"
FT   STRAND          62..65
FT                   /evidence="ECO:0007829|PDB:1T23"
FT   STRAND          68..70
FT                   /evidence="ECO:0007829|PDB:2NBJ"
FT   STRAND          73..75
FT                   /evidence="ECO:0007829|PDB:2KHL"
FT   STRAND          79..81
FT                   /evidence="ECO:0007829|PDB:1T23"
FT   STRAND          84..91
FT                   /evidence="ECO:0007829|PDB:1T23"
SQ   SEQUENCE   93 AA;  10663 MW;  294AA1878D549C28 CRC64;
     SNTRNFVLRD EDGNEHGVFT GKQPRQAALK AANRGSGTKA NPDIIRLRER GTKKVHVFKA
     WKEIVDAPKN RPAWMPEKIS KPFVKKERIE KLE