Table 2.
Closest contacts between chlorophylls and carotenoids
| Chl in (Kühlbrandt et al, 1994) | Chl in (Liu et al, 2004) | New nomenclature | Closest carotenoids | Closest π–π contact (Å) (internuclear distance) | Mg2+ ligand | H bond to Chl b formyl group |
|---|---|---|---|---|---|---|
| Chlorophylls a | ||||||
| a1 | 610 | Chl 1 | Lut 1 | 3.3 | Glu180 Oɛ2 | |
| a2 | 612 | Chl 2 | Lut 1 | 3.5 | Asn183 Oδ1 | |
| a3 | 613 | Chl 3 | Lut 1 | 5.0 | Gln197 Oɛ1 | |
| a4 | 602 | Chl 4 | Lut 2 | 3.2 | Glu65 Oɛ2 | |
| a5 | 603 | Chl 5 | Lut 2 | 3.6 | His68 Nɛ2 | |
| a6 | 604 | Chl 6 | Lut 2 | 4.8 | Wat-Gly78 O | |
| b2 | 611 | Chl 7 | Lut 1 | 9.1 | PG O4 | |
| b3 | 614 | Chl 8 | Lut 1 | 8.0 | His212 Nɛ2 | |
| Chlorophylls b | ||||||
| — | 601 | Chl 9 | Lut 2 | 8.0 | Tyr24 O | — |
| a7 | 607 | Chl 10 | Lut 2 | 5.1 | Wat-Chl 13 OMC | Gln131 Nɛ1 |
| b1 | 608 | Chl 11 | Neo | 4.3 | Wat-Val138 O | Leu148 N |
| b5 | 609 | Chl 12 | Lut 2 | 7.8 | Glu139 Oɛ2 | Gln131 Nɛ1 |
| b6 | 606 | Chl 13 | Lut 2 | 4.9 | Wat-Gln131 Oɛ2 | Wat-Chl 10 Mg |
| — | 605 | Chl 14 | Neo | 12.3 | Val119 O | Ser123 N |