apoprotein

General Information (Source: NCBI Gene,UniProt)

Text mining Term	apoprotein
UniProt ID	D1L8N7_BRANA
Name	Photosystem I P700 chlorophyll a apoprotein A2 PSI-B PsaB
Gene Names	psaB
Taxonomy	Brassica napus

General annotation

Function	PsaA and psaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX. PSI is a plastocyanin-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characterized acceptors A0, A1, FX, FA and FB in turn. Oxidized P700 is reduced on the lumenal side of the thylakoid membrane by plastocyanin (By similarity).
Subcellular location	Plastid, chloroplast thylakoid membrane; Multi-pass membrane protein (By similarity).

Function

PsaA and psaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX. PSI is a plastocyanin-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characterized acceptors A0, A1, FX, FA and FB in turn. Oxidized P700 is reduced on the lumenal side of the thylakoid membrane by plastocyanin (By similarity).

Subcellular location

Plastid, chloroplast thylakoid membrane; Multi-pass membrane protein (By similarity).

Gene Ontology

GO:0006810	transport	BP
GO:0000287	magnesium ion binding	MF
GO:0009535	chloroplast thylakoid membrane	CC
GO:0016021	integral to membrane	CC
GO:0015979	photosynthesis	BP
GO:0022900	electron transport chain	BP
GO:0051539	4 iron, 4 sulfur cluster binding	MF
GO:0016168	chlorophyll binding	MF
GO:0009055	electron carrier activity	MF
GO:0018298	protein-chromophore linkage	BP
GO:0009522	photosystem I	CC

Sequence

>gi|262400775|gb|ACY66264.1| photosystem I P700 chlorophyll a apoprotein A2 [Brassica napus]
MALRFPRFSQGLAQDPTTRRIWFGIATAHDFESHDDITEERLYQNIFASHFGQLAIIFLWTSGNLFHVAW
QGNFETWIQDPLHVRPIAHAIWDPHFGQPAVEAFTRGGALGPVNIAYSGVYQWWYTIGLRTNEDLYTGAL
FLLFLSALSLIGGWLHLQPKWKPRVSWFKNAESRLNHHLSGLFGVSSLAWTGHLVHVAIPASRGEYVRWN
NFLSVLPHPQGLGPLFTGQWNLYAQNPDSSSHLFGTSQGSGTAILTLLGGFHPQTQSLWLTDMAHHHLAI
AILFLIAGHMYRTNFGIGHSIKDLLEAHIPPGGRLGRGHKGLYDTINNSIHFQLGLALASLGVITSLVAQ
HMYSLPAYAFIAQDFTTQAALYTHHQYIAGFIMTGAFAHGAIFFIRDYNPEQNEDNVLARMLDHKEAIIS
HLSWASLFLGFHTLGLYVHNDVMLAFGTPEKQILIEPIFAQWIQSAHGKTSYGFDVLLSSTNGPAFNAGR
SIWLPGWLNAINENSNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKKDFGYSFPCD
GPGRGGTCDISAWDAFYLAVFWMLNTIGWVTFYWHWKHITLWQGNVSQFNESSTYLMGWLRDYLWLNSSQ
LINGYNPFGMNSLSVWAWMFLFGHLVWATGFMFLISWRGYWQELIETLAWAHERTPLANLIRWKDKPVAL
SIVQARLVGLAHFSVGYIFTYAAFLIASTSGKFG

Database Cross Reference

Ensembl Gene
UniGene
PDB
RefSeq
Pfam	PF00223

PTID

apoprotein

General Information (Source: NCBI Gene,UniProt)

General annotation

Gene Ontology

Sequence

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Database Cross Reference