Table 2. Closest contacts between chlorophylls and carotenoids
Chl in (Kühlbrandt et al, 1994)Chl in (Liu et al, 2004)New nomenclatureClosest carotenoidsClosest π–π contact (Å) (internuclear distance)Mg2+ ligandH bond to Chl b formyl group
Chlorophylls a
a1610Chl 1Lut 13.3Glu180 Oε2
a2612Chl 2Lut 13.5Asn183 Oδ1
a3613Chl 3Lut 15.0Gln197 Oε1
a4602Chl 4Lut 23.2Glu65 Oε2
a5603Chl 5Lut 23.6His68 Nε2
a6604Chl 6Lut 24.8Wat‐Gly78 O
b2611Chl 7Lut 19.1PG O4
b3614Chl 8Lut 18.0His212 Nε2
Chlorophylls b
601Chl 9Lut 28.0Tyr24 O
a7607Chl 10Lut 25.1Wat‐Chl 13 OMCGln131 Nε1
b1608Chl 11Neo4.3Wat‐Val138 OLeu148 N
b5609Chl 12Lut 27.8Glu139 Oε2Gln131 Nε1
b6606Chl 13Lut 24.9Wat‐Gln131 Oε2Wat‐Chl 10 Mg
605Chl 14Neo12.3Val119 OSer123 N