Introduction 2004 2006 2003 2004 2005 a b a. 1999 a a b b c a 2005 2006 a b c b c a c b 1999 2000 2000 b c 1994 1996 d 1997 2002 Acaryochloris marina a a Summary of differences in chlorophylls a 2001 2002 2006 raison d’être b c 1999 2001 2004 2005 b b a 1998 a b a b a d a a a a 2005 . a 1 1 Fig. 1 a b a b d a  b d 3 c 1 2 c c 1 3 2 5 c 2 3 2 3 c 3 3 2 3  a 1 Q y 1988 1999 2003 2006 Q y Q x d Q y a d a Q y 2003 a Q y 2003 b b 2005 Q y a b 2003 b Q y a Q y a 1999 Q x b a. Q x b a 2004 b 1987 b Q x Q y Q x b 1991 K 1963 1975 b 2004 c c a b Montoniella squamata c a b 1994 1996 c c b 1 c 3 c a trans 1 2 3 a c a 2003 a c c c 1 c 2 c 3 3 c 3 1997 c 1 c 2 c 3 Q x 1987 2003 Q y  c 1 c 2000 A summary of ligands of chlorophylls in light-harvesting complexes 1978 a b b Q x a Q x Q y 1998 a b Q x + K 1978 K 2002 + K K 2000 2006) 2002 2004 2004 K K K K K K a b K K b a. b 1 1992 1999 2006 Table 1 Values of dipole moments selected from the literature for potential ligands of Chl Ligand K a Solution Dipole (D) ab initio Dipole (D) Carboxyl group     Formic acid 3–5 2006 1999 Alcohol 1989 2001 2006 1999 Water 1989 2001 1997 1997  1973 Imidazole 6–7 1992 1992  b 1992  Amide     Formamide  1992 1999  b 1992 1992     Acetamide 1983 1992 1992  b 1992      Sidechain  2002      Peptide bond   2000 N 1983 2006 2006  2006  Urea 1983 1999 1992  b 1999  a K (+) (−) + b References are indicated in parenthesis Water b a 1969 1 1998 1973 b Imidazole  2005 + K a 1992 2004 1 Both 2 Fig. 2 A B A 1982 A  3 a 1999 2000 a Fig. 3 1996 b a b 2005  2000 a a b Carboxyl group a K 2000 2002 2003 2004 K 2002 1 a . b b b 2005 a d 2005 b c 2007 b c 2 b b 2007 Table 2 Heat of formation of Chl-peptide complexes calculated by molecular modeling Species Heat of formation (kcal/mol)  In vacuum In water a −706 −870 b 770 −133 c 1 1,001 160 c 2 1,115 310 c 3 877 84 d −806 −949 a −892 −1047 2000 2007 Amide group K 1983 + 1 a b 1999 1999 a a Peptide bond 1999 K N 1983 K N 1 N 2006 N 1999 a a 2000 b. N b 3 a 2005 a b a a Lepidium virginicum 2007 a a Phosphatidyl glycerol a 2004 2001 a 2004 a Implications for assembly of light-harvesting complexes b 2001 2001 2005 2004 2005 a 2001 2005 2002 2002 2005 2004 b a a a b b 1999 2001 2001 a b b a 2 H b b 2007 . 2006 b-less Arabidopsis thaliana 2004 2006 b-less A. thaliana ch1-1 Prochlorothrix hollandica b a/b b b b 2006 a b P. hollandica b b b b-less 1995 1997 1999 b b-less A. thaliana Chlamydomonas reinhardtii b-less cbn1-113 1997 1996 1997 b 1996 Model of LHCII assembly 2000 2005 2004 2006 1985 1985 2000 1996 1999 3 a. a 2000 1990 b 2005 b c b b 2004 2005 a/b Dunaliella b 2006 b 4 Fig. 4 b left right a a b b a + b). a b  b 2004 2005 2005 2006 4 2000 2003 2000 2002 2006 Alb3 K a b 2006 1999 1999 1999 2004 b b b a b 1999 b a 2005 b b . b 2004 b b 4 b b b b b b 3 b 2004 b b b b b b a 2004 2007 b 2006 b b a 4 b