Structure of PDB 1ppr Chain O

Receptor sequence

>1pprO (length=312) Species: 2961 (Amphidinium carterae)

DEIGDAAKKLGDASYAFAKEVDWNNGIFLQAPGKLQPLEALKAIDKMIVM
GAAADPKLLKAAAEAHHKAIGSISGPNGVTSRADWDNVNAALGRVIASVP
ENMVMDVYDSVSKITDPKVPAYMKSLVNGADAEKAYEGFLAFKDVVKKSQ
VTSAAGPATVPSGDKIGVAAQQLSEASYPFLKEIDWLSDVYMKPLPGVSA
QQSLKAIDKMIVMGAQADGNALKAAAEAHHKAIGSIDATGVTSAADYAAV
NAALGRVIASVPKSTVMDVYNAMAGVTDTSIPLNMFSKVNPLDANAAAKA
FYTFKDVVQAAQ

3D structure

• PDB: 1ppr Structural basis of light harvesting by carotenoids: peridinin-chlorophyll-protein from Amphidinium carterae.
• Chain: O
• Resolution: 2.0 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	CLA	O	F17 A62 H66 L92 F139 I211	F17 A62 H66 L92 F139 I211
BS02	CLA	O	F180 A225 H229 Y247 F301	F180 A225 H229 Y247 F301
BS03	PID	O	F17 F28 P120 A121 M123 K124 Y136 A200 S203	F17 F28 P120 A121 M123 K124 Y136 A200 S203
BS04	PID	O	I27 F28 P32 K118 V119 Y122 M123 M210	I27 F28 P32 K118 V119 Y122 M123 M210
BS05	PID	O	M47 V104 M105 Y108 L222	M47 V104 M105 Y108 L222
BS06	PID	O	W23 I73 G78 V79 T80 W85 N89 L92 E101 V104 F139 K143 Q150 L204	W23 I73 G78 V79 T80 W85 N89 L92 E101 V104 F139 K143 Q150 L204
BS07	PID	O	L35 A40 F180 I184 W186 Y191 P282 M285 F286 A298	L35 A40 F180 I184 W186 Y191 P282 M285 F286 A298
BS08	PID	O	V190 Y191 I281 N284 M285	V190 Y191 I281 N284 M285
BS09	PID	O	L59 M210 V266 Y270 Y302	L59 M210 V266 Y270 Y302
BS10	PID	O	W186 G240 V241 T242 N251 L254 V266 F301 K305 V308	W186 G240 V241 T242 N251 L254 V266 F301 K305 V308

Gene Ontology

Molecular Function

• GO:0016168 chlorophyll binding

Cellular Component

• GO:0030076 light-harvesting complex

External links

• PDB: RCSB:1ppr, PDBe:1ppr, PDBj:1ppr
• PDBsum: 1ppr
• PubMed: 8650577
• UniProt: P80484|PCP1_AMPCA Peridinin-chlorophyll a-binding protein 1, chloroplastic