ENZYME entry: EC 1.10.3.9

Accepted Name

photosystem II

Reaction catalysed

2 a plastoquinone + 2 H2O + 4 hnu <=> 2 a plastoquinol + O2

Comment(s)

Contains chlorophyll a, beta-carotene, pheophytin, plastoquinone, a Mn4Ca cluster, heme and non-heme iron.
Four successive photoreactions, resulting in a storage of four positive charges, are required to oxidize two water molecules to one oxygen molecule.

Cross-references

BRENDA

1.10.3.9

EC2PDB

1.10.3.9

ExplorEnz

1.10.3.9

PRIAM enzyme-specific profiles

1.10.3.9

KEGG Ligand Database for Enzyme Nomenclature

1.10.3.9

IUBMB Enzyme Nomenclature

1.10.3.9

IntEnz

1.10.3.9

MEDLINE

Find literature relating to 1.10.3.9

MetaCyc

1.10.3.9

Rhea expert-curated reactions

1.10.3.9

UniProtKB/Swiss-Prot

B0CB14, PSBA1_ACAM1	Q7M7A9, PSBA1_GLOVI	P46242, PSBA1_NOSS1
Q7TTJ7, PSBA1_PARMW	P04996, PSBA1_SYNE7	P0A445, PSBA1_SYNEL
Q2JTJ2, PSBA1_SYNJA	Q2JPR2, PSBA1_SYNJB	B1XM24, PSBA1_SYNP2
Q5N5R2, PSBA1_SYNP6	A5GIM7, PSBA1_SYNPW	A5GTY4, PSBA1_SYNR3
Q0I7J2, PSBA1_SYNS3	Q3AYB8, PSBA1_SYNS9	Q3AM89, PSBA1_SYNSC
P07826, PSBA1_SYNY3	P0A444, PSBA1_THEVB	Q11A00, PSBA1_TRIEI
Q3MCT0, PSBA1_TRIV2	A5A8K9, PSBA2_ACAM1	Q7NJX5, PSBA2_GLOVI
P31694, PSBA2_NOSS1	Q7U669, PSBA2_PARMW	P04997, PSBA2_SYNE7
P0A447, PSBA2_SYNEL	Q2JTT0, PSBA2_SYNJA	Q2JP67, PSBA2_SYNJB
B1XMC3, PSBA2_SYNP2	Q5N4D2, PSBA2_SYNP6	A5GJU5, PSBA2_SYNPW
A5GTY5, PSBA2_SYNR3	Q0I912, PSBA2_SYNS3	Q3AV15, PSBA2_SYNS9
Q3AKT2, PSBA2_SYNSC	P16033, PSBA2_SYNY3	P0A446, PSBA2_THEVB
Q10VK7, PSBA2_TRIEI	Q3MAB1, PSBA2_TRIV2	Q7NH81, PSBA3_GLOVI
Q8YQS7, PSBA3_NOSS1	Q7U4Z3, PSBA3_PARMW	Q2JTM8, PSBA3_SYNJA
B1XIP3, PSBA3_SYNP2	Q5N337, PSBA3_SYNP6	Q0I910, PSBA3_SYNS3
Q8DIV4, PSBA3_THEVB	Q3MB78, PSBA3_TRIV2	Q3M5L6, PSBA4_TRIV2
Q3V554, PSBA_ACOCL	Q85C23, PSBA_ADICA	A4QJ96, PSBA_AETCO
A4QJI0, PSBA_AETGR	A1E9Y8, PSBA_AGRST	Q9TM69, PSBA_ALETA
P02956, PSBA_AMAHY	Q70Y17, PSBA_AMBTC	Q9BBC1, PSBA_AMPCA
Q7HP56, PSBA_AMPOP	B0YPN1, PSBA_ANEMR	A2T309, PSBA_ANGEV
Q85BH5, PSBA_ANTAG	P24625, PSBA_ANTSP	A4QJZ9, PSBA_ARAHI
P83755, PSBA_ARATH	Q7FNT3, PSBA_ATRBE	A4QK85, PSBA_BARVE
Q06J41, PSBA_BIGNA	P18290, PSBA_BRANA	P48265, PSBA_BUMFI
A6MM16, PSBA_BUXMI	Q7YJY8, PSBA_CALFG	A4QKH2, PSBA_CAPBU
B1A915, PSBA_CARPA	A8SE40, PSBA_CERDE	Q8M9W3, PSBA_CHAGL
Q1ACM1, PSBA_CHAVU	Q19VC4, PSBA_CHLAT	P35860, PSBA_CHLEL
P09752, PSBA_CHLMO	P07753, PSBA_CHLRE	A6MMA2, PSBA_CHLSC
P56318, PSBA_CHLVU	Q09MJ8, PSBA_CITSI	A0A315, PSBA_COFAR
Q9T351, PSBA_CONCI	Q9TNF8, PSBA_CONJP	P51759, PSBA_CROS5
A4QKR1, PSBA_CRUWA	B1VKF9, PSBA_CRYJA	Q2QDA8, PSBA_CUCSA
A8W3A5, PSBA_CUSEX	A7M8Y6, PSBA_CUSGR	A8W3H2, PSBA_CUSOB
P32036, PSBA_CUSRE	O19895, PSBA_CYACA	Q85G59, PSBA_CYAM1
P12719, PSBA_CYAPA	A6H5E4, PSBA_CYCTA	Q0G9Y2, PSBA_DAUCA
A6MMI8, PSBA_DIOEL	A4QL00, PSBA_DRANE	Q06H17, PSBA_DRIGR
Q9TNF7, PSBA_DUMHI	P24726, PSBA_ECTSI	Q4G3F2, PSBA_EMIHU
Q49L18, PSBA_EUCGG	P06631, PSBA_EUGGR	P24725, PSBA_GALSU
A6BM28, PSBA_GNEPA	A0ZZ15, PSBA_GOSBA	P69564, PSBA_GOSHI
Q6B929, PSBA_GRATL	O78446, PSBA_GUITH	Q1KXX9, PSBA_HELAN
Q32389, PSBA_HETAK	Q9MSC0, PSBA_HETNI	Q9MSC1, PSBA_HETPY
Q9MSC2, PSBA_HETRO	Q9XQV1, PSBA_HETTR	P05337, PSBA_HORVU
Q5SCW8, PSBA_HUPLU	A6MMS4, PSBA_ILLOL	A7Y395, PSBA_IPOPU
Q06RF1, PSBA_JASNU	Q9TJ82, PSBA_KARMI	P69557, PSBA_LACSA
P27201, PSBA_LANPU	A9L976, PSBA_LEMMI	A4QL86, PSBA_LEPVR
Q0G9N9, PSBA_LIRTU	A4QLH5, PSBA_LOBMA	A8Y9F0, PSBA_LOLPR
Q9BBU3, PSBA_LOTJA	O98736, PSBA_MAGPY	P48183, PSBA_MAIZE
B1NWD0, PSBA_MANES	P06402, PSBA_MARPO	Q9S3W5, PSBA_MASLA
P04998, PSBA_MEDSA	Q9MUW0, PSBA_MESVI	P51764, PSBA_MICAE
B0JIS8, PSBA_MICAN	P07063, PSBA_MICDP	Q09X37, PSBA_MORIN
Q09FY1, PSBA_NANDO	A4QLR3, PSBA_NASOF	Q1XDS5, PSBA_NEOYE
Q9TL35, PSBA_NEPOL	P69561, PSBA_NICDE	P69562, PSBA_NICPL
Q3C1G3, PSBA_NICSY	Q33C59, PSBA_NICTO	Q6EW68, PSBA_NYMAL
B0Z4K6, PSBA_OENAR	B0Z4U0, PSBA_OENBI	P83756, PSBA_OENEH
B0Z524, PSBA_OENGL	B0Z5A8, PSBA_OENPA	A4QJR4, PSBA_OLIPU
Q20ET2, PSBA_OLTVI	Q6ENJ7, PSBA_ORYNI	P0C432, PSBA_ORYSA
P0C433, PSBA_ORYSI	P0C434, PSBA_ORYSJ	Q0P3J1, PSBA_OSTTA
P69565, PSBA_OXYRB	O98733, PSBA_PALPL	Q68S26, PSBA_PANGI
P06585, PSBA_PEA	Q06FY1, PSBA_PELHO	P04999, PSBA_PETHY
Q3BAR4, PSBA_PHAAO	A0T0G9, PSBA_PHATC	Q01366, PSBA_PHAVU
P50155, PSBA_PICAB	P69550, PSBA_PINCO	Q85WS3, PSBA_PINKO
P69551, PSBA_PINTH	Q06GT0, PSBA_PIPCE	Q09G66, PSBA_PLAOC
A6YGB8, PSBA_PLETE	Q14FH6, PSBA_POPAL	P36491, PSBA_POPDE
A4GYN9, PSBA_POPTR	P51212, PSBA_PORPU	P15191, PSBA_PROHO
A3PAU3, PSBA_PROM0	A2C057, PSBA_PROM1	A8G5N5, PSBA_PROM2
A2C6Q1, PSBA_PROM3	A2BUK1, PSBA_PROM5	Q31A92, PSBA_PROM9
P46895, PSBA_PROMA	Q9TM72, PSBA_PROMC	Q7TTH6, PSBA_PROMM
Q7V365, PSBA_PROMP	A2BP21, PSBA_PROMS	Q46JV2, PSBA_PROMT
Q8WI36, PSBA_PSINU	A6MVT2, PSBA_RHDSA	Q6L3B5, PSBA_SACHY
P0C157, PSBA_SACOF	P10510, PSBA_SECCE	Q2WGI0, PSBA_SELUN
P11848, PSBA_SINAL	Q2MIK7, PSBA_SOLBU	Q2MIC0, PSBA_SOLLC
P69563, PSBA_SOLNI	Q2VEJ6, PSBA_SOLTU	A1E9Q4, PSBA_SORBI
P02957, PSBA_SOYBN	P69560, PSBA_SPIOL	Q32RX1, PSBA_STAPU
Q06SD2, PSBA_STIHE	P14660, PSBA_SYNY4	Q1KVU8, PSBA_TETOB
A0T0W2, PSBA_THAPS	P51765, PSBA_THEVL	P69556, PSBA_TOBAC
P29270, PSBA_TRIAZ	P49460, PSBA_TRICV	Q3ZJ60, PSBA_TUPAK
P13910, PSBA_VICFA	Q33282, PSBA_VIGUN	Q0ZJ40, PSBA_VITVI
P12463, PSBA_WHEAT	Q32RM3, PSBA_ZYGCR	B0C1V6, PSBD1_ACAM1
Q5N3Q7, PSBD1_SYNP6	B0C3P0, PSBD2_ACAM1	Q5MZ82, PSBD2_SYNP6
Q4FFP4, PSBD_ACOAM	Q3V539, PSBD_ACOCL	Q85FM2, PSBD_ADICA
A4QJB0, PSBD_AETCO	A4QJJ4, PSBD_AETGR	A1E9Z3, PSBD_AGRST
Q70Y08, PSBD_AMBTC	A2T330, PSBD_ANGEV	Q85AC9, PSBD_ANTAG
P69685, PSBD_ANTMA	A4QK13, PSBD_ARAHI	P56761, PSBD_ARATH
Q8S8X8, PSBD_ATRBE	A4QKA0, PSBD_BARVE	Q06J67, PSBD_BIGNA
Q7Y4H2, PSBD_BPSYP	Q6H956, PSBD_BPSYR	Q0QZ08, PSBD_BPSYS
Q6H952, PSBD_BPSYW	B3TNB8, PSBD_BRADI	A6MM31, PSBD_BUXMI
Q7YJX7, PSBD_CALFG	A4QKI7, PSBD_CAPBU	B1A930, PSBD_CARPA
A8SE98, PSBD_CERDE	Q8M9W4, PSBD_CHAGL	Q1ACJ7, PSBD_CHAVU
Q19VC7, PSBD_CHLAT	P06007, PSBD_CHLRE	A6MMB7, PSBD_CHLSC
P56319, PSBD_CHLVU	B5LMM1, PSBD_CICAR	Q09MI3, PSBD_CITSI
A0A330, PSBD_COFAR	B1WQ89, PSBD_CROS5	A4QKS6, PSBD_CRUWA
B1VKH0, PSBD_CRYJA	Q4VZN8, PSBD_CUCSA	A8W3B9, PSBD_CUSEX
A7M8Z6, PSBD_CUSGR	A8W3I2, PSBD_CUSOB	A7M961, PSBD_CUSRE
Q49CA8, PSBD_CUSSA	Q9TM47, PSBD_CYACA	Q85G27, PSBD_CYAM1
P48079, PSBD_CYAPA	A6H5G6, PSBD_CYCTA	Q0G9W7, PSBD_DAUCA
A6MMK2, PSBD_DIOEL	A4QL14, PSBD_DRANE	Q06H02, PSBD_DRIGR
Q4G395, PSBD_EMIHU	Q49L03, PSBD_EUCGG	P31557, PSBD_EUGGR
B2XWK0, PSBD_FAGEA	P28253, PSBD_GALSU	A0ZZ30, PSBD_GOSBA
Q2L902, PSBD_GOSHI	Q6B918, PSBD_GRATL	B2LMI8, PSBD_GUIAB
O78427, PSBD_GUITH	Q1KXW4, PSBD_HELAN	B2XT21, PSBD_HETA2
B2XTH7, PSBD_HETA4	P11849, PSBD_HORVU	A6MMT9, PSBD_ILLOL
A7Y3C4, PSBD_IPOPU	Q06RD6, PSBD_JASNU	Q56P05, PSBD_LACSA
A9L991, PSBD_LEMMI	A4QLA1, PSBD_LEPVR	Q0G9M4, PSBD_LIRTU
A4QLI9, PSBD_LOBMA	A8Y9F5, PSBD_LOLPR	Q9BBT0, PSBD_LOTJA
P48184, PSBD_MAIZE	B1NWE5, PSBD_MANES	P06404, PSBD_MARPO
Q9MUW2, PSBD_MESVI	Q09X22, PSBD_MORIN	Q09FW6, PSBD_NANDO
A4QLS8, PSBD_NASOF	Q1XDD0, PSBD_NEOYE	Q9TL00, PSBD_NEPOL
Q3C1I4, PSBD_NICSY	Q33C42, PSBD_NICTO	B2IVV1, PSBD_NOSP7
Q8XFA5, PSBD_NOSS1	Q4FFP2, PSBD_NUPAD	Q6EW53, PSBD_NYMAL
B0Z4M2, PSBD_OENAR	B0Z4V6, PSBD_OENBI	Q9MTN1, PSBD_OENEH
B0Z540, PSBD_OENGL	B0Z5C4, PSBD_OENPA	A4QJS8, PSBD_OLIPU
Q20EU7, PSBD_OLTVI	Q6ENJ1, PSBD_ORYNI	P0C435, PSBD_ORYSA
P0C436, PSBD_ORYSI	P0C437, PSBD_ORYSJ	Q0P3Q0, PSBD_OSTTA
Q68S11, PSBD_PANGI	Q7TTI2, PSBD_PARMW	B1X3H4, PSBD_PAUCH
P06006, PSBD_PEA	Q06FW1, PSBD_PELHO	Q3BAP5, PSBD_PHAAO
A0T097, PSBD_PHATC	A4GGA2, PSBD_PHAVU	Q6YXN8, PSBD_PHYPA
Q85WW5, PSBD_PINKO	P41644, PSBD_PINTH	Q06GR5, PSBD_PIPCE
Q09G51, PSBD_PLAOC	A6YG76, PSBD_PLETE	Q14FG2, PSBD_POPAL
Q9XQA8, PSBD_POPDE	A4GYQ4, PSBD_POPTR	P51357, PSBD_PORPU
P51766, PSBD_PROHO	Q7V6I0, PSBD_PROMM	Q8WI19, PSBD_PSINU
Q4FFP1, PSBD_RANMC	Q6L3B1, PSBD_SACHY	Q6ENY1, PSBD_SACOF
P10803, PSBD_SECCE	Q2MIJ2, PSBD_SOLBU	Q2MIA5, PSBD_SOLLC
Q2VEI1, PSBD_SOLTU	A1E9Q9, PSBD_SORBI	Q2PMT8, PSBD_SOYBN
P06005, PSBD_SPIOL	Q32RT0, PSBD_STAPU	Q06SH5, PSBD_STIHE
P11005, PSBD_SYNE7	Q2JRJ5, PSBD_SYNJA	Q2JKT8, PSBD_SYNJB
P20898, PSBD_SYNP2	A5GMA8, PSBD_SYNPW	A5GQK3, PSBD_SYNR3
Q0I6Z7, PSBD_SYNS3	Q3B038, PSBD_SYNS9	Q3AH25, PSBD_SYNSC
P09192, PSBD_SYNY3	Q1KVW6, PSBD_TETOB	A0T0T0, PSBD_THAPS
Q8CM25, PSBD_THEVB	D0VWR8, PSBD_THEVL	P69686, PSBD_TOBAC
P49478, PSBD_TRICV	Q116J3, PSBD_TRIEI	Q3MA59, PSBD_TRIV2
Q3ZJ46, PSBD_TUPAK	Q0ZJ25, PSBD_VITVI	B2Y1U5, PSBD_WELMI
Q36814, PSBD_WHEAT	Q32RM5, PSBD_ZYGCR

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.10.3.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 1.10.-.-
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