TITLE     Cryo-EM structure of the dimeric Rhodobacter sphaeroides RC-LH1 core
TITLE   2 complex at 2.9 A: the structural basis for dimerisation
COMPND    MOL_ID: 1;
COMPND   2 MOLECULE: LH1-alpha;
COMPND   3 CHAIN: AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN, aa, ab, ac, ad, ae, af, ag, ah, ai, aj, ak, al, am, an;
COMPND   4 MOL_ID: 2;
COMPND   5 LH1-beta;
COMPND   6 CHAIN: BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ, BK, BL, BM, BN, ba, bb, bc, bd, be, bf, bg, bh, bi, bj, bk, bl, bm, bn;
COMPND   7 MOL_ID: 3;
COMPND   8 RC-H;
COMPND   9 CHAIN: H, h;
COMPND   10 MOL_ID: 1;
COMPND   11 LH1-alpha;
COMPND   12 CHAIN: AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN, aa, ab, ac, ad, ae, af, ag, ah, ai, aj, ak, al, am, an;
COMPND   13 MOL_ID: 2;
COMPND   14 LH1-beta;
COMPND   15 CHAIN: BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ, BK, BL, BM, BN, ba, bb, bc, bd, be, bf, bg, bh, bi, bj, bk, bl, bm, bn;
COMPND   16 MOL_ID: 1;
COMPND   17 LH1-alpha;
COMPND   18 CHAIN: AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN, aa, ab, ac, ad, ae, af, ag, ah, ai, aj, ak, al, am, an;
COMPND   19 MOL_ID: 2;
COMPND   20 LH1-beta;
COMPND   21 CHAIN: BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ, BK, BL, BM, BN, ba, bb, bc, bd, be, bf, bg, bh, bi, bj, bk, bl, bm, bn;
COMPND   22 MOL_ID: 4;
COMPND   23 RC-L;
COMPND   24 CHAIN: L, l;
COMPND   25 MOL_ID: 1;
COMPND   26 LH1-alpha;
COMPND   27 CHAIN: AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN, aa, ab, ac, ad, ae, af, ag, ah, ai, aj, ak, al, am, an;
COMPND   28 MOL_ID: 2;
COMPND   29 LH1-beta;
COMPND   30 CHAIN: BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ, BK, BL, BM, BN, ba, bb, bc, bd, be, bf, bg, bh, bi, bj, bk, bl, bm, bn;
COMPND   31 MOL_ID: 5;
COMPND   32 Reaction center protein M chain;
COMPND   33 CHAIN: M, m;
EXPDTA     ELECTRON MICROSCOPY
SEQRES   1 m  307  ALA GLU TYR GLN ASN ILE PHE SER GLN VAL GLN VAL ARG
SEQRES   2 m  307  GLY PRO ALA ASP LEU GLY MET THR GLU ASP VAL ASN LEU
SEQRES   3 m  307  ALA ASN ARG SER GLY VAL GLY PRO PHE SER THR LEU LEU
SEQRES   4 m  307  GLY TRP PHE GLY ASN ALA GLN LEU GLY PRO ILE TYR LEU
SEQRES   5 m  307  GLY SER LEU GLY VAL LEU SER LEU PHE SER GLY LEU MET
SEQRES   6 m  307  TRP PHE PHE THR ILE GLY ILE TRP PHE TRP TYR GLN ALA
SEQRES   7 m  307  GLY TRP ASN PRO ALA VAL PHE LEU ARG ASP LEU PHE PHE
SEQRES   8 m  307  PHE SER LEU GLU PRO PRO ALA PRO GLU TYR GLY LEU SER
SEQRES   9 m  307  PHE ALA ALA PRO LEU LYS GLU GLY GLY LEU TRP LEU ILE
SEQRES  10 m  307  ALA SER PHE PHE MET PHE VAL ALA VAL TRP SER TRP TRP
SEQRES  11 m  307  GLY ARG THR TYR LEU ARG ALA GLN ALA LEU GLY MET GLY
SEQRES  12 m  307  LYS HIS THR ALA TRP ALA PHE LEU SER ALA ILE TRP LEU
SEQRES  13 m  307  TRP MET VAL LEU GLY PHE ILE ARG PRO ILE LEU MET GLY
SEQRES  14 m  307  SER TRP SER GLU ALA VAL PRO TYR GLY ILE PHE SER HIS
SEQRES  15 m  307  LEU ASP TRP THR ASN ASN PHE SER LEU VAL HIS GLY ASN
SEQRES  16 m  307  LEU PHE TYR ASN PRO PHE HIS GLY LEU SER ILE ALA PHE
SEQRES  17 m  307  LEU TYR GLY SER ALA LEU LEU PHE ALA MET HIS GLY ALA
SEQRES  18 m  307  THR ILE LEU ALA VAL SER ARG PHE GLY GLY GLU ARG GLU
SEQRES  19 m  307  LEU GLU GLN ILE ALA ASP ARG GLY THR ALA ALA GLU ARG
SEQRES  20 m  307  ALA ALA LEU PHE TRP ARG TRP THR MET GLY PHE ASN ALA
SEQRES  21 m  307  THR MET GLU GLY ILE HIS ARG TRP ALA ILE TRP MET ALA
SEQRES  22 m  307  VAL LEU VAL THR LEU THR GLY GLY ILE GLY ILE LEU LEU
SEQRES  23 m  307  SER GLY THR VAL VAL ASP ASN TRP TYR VAL TRP GLY GLN
SEQRES  24 m  307  ASN HIS GLY MET ALA PRO LEU ASN