Structure of PDB 4h44 Chain C

Receptor sequence

>4h44C (length=289) Species: 103690 (Nostoc sp. PCC 7120 = FACHB-418) [Search protein sequence]

YPFWAQQTYPETPREPTGRIVCANCHLAAKPTEVEVPQSVLPDTVFKAVV
KIPYDTSVQQVGADGSKVGLNVGAVLMLPEGFKIAPEDRIPEELKEEIGD
VYFQPYGEDKDNIVIVGPLPGEQYQEIVFPVLSPNPANDKNIHFGKYSVH
VGGNRGRGQVYPTGEKSNNNLYSAAATGTISKIAKQEGEDGSVKYLVDIK
TESGEVVSDTIPAGPELIVSEGQAVTAGDALTNNPNVGGFGQLDAEIVLQ
DANRVGWLIAFVALVMLAQVMLVLKKKQVEKVQAAEMNF

3D structure

PDB

4h44 Quinone-dependent proton transfer pathways in the photosynthetic cytochrome b6f complex

Chain

Resolution

2.7 Å

3D
structure

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Enzymatic activity

Enzyme Commision number

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	peptide	C	Q38 S39 V40 L41 V255 I259 V262 M266 Q269 V270 V273 K276 K277	Q38 S39 V40 L41 V255 I259 V262 M266 Q269 V270 V273 K276 K277
BS02	HEM	C	Y1 P2 W4 A5 C22 C25 H26 L70 N71 V72 G73 A74 N154 G156 R157 G158 V160 Y161	Y1 P2 W4 A5 C22 C25 H26 L70 N71 V72 G73 A74 N154 G156 R157 G158 V160 Y161

Gene Ontology

	Molecular Function
GO:0005506	iron ion binding
GO:0009055	electron transfer activity
GO:0020037	heme binding
GO:0046872	metal ion binding

	Biological Process
GO:0015979	photosynthesis

	Cellular Component
GO:0009579	thylakoid
GO:0016020	membrane
GO:0031676	plasma membrane-derived thylakoid membrane
GO:0042651	thylakoid membrane

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Molecular Function

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Cellular Component

External links

PDB	RCSB:4h44, PDBe:4h44, PDBj:4h44
PDBsum	4h44
PubMed	23440205
UniProt	Q93SW9\|CYF_NOSS1 Cytochrome f (Gene Name=petA)

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