6K61

Cryo-EM structure of the tetrameric photosystem I from a heterocyst-forming cyanobacterium Anabaena sp. PCC7120


Domain Annotation: SCOP Classification SCOP Database (version: 2.0) Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpecies
Ad6k61a_ Membrane and cell surface proteins and peptides Photosystem I subunits PsaA/PsaB Photosystem I subunits PsaA/PsaB Photosystem I subunits PsaA/PsaB automated matches (Nostoc sp. PCC 7120 = FACHB-418 ) [TaxId: 103690 ]
Cd6k61b_ Membrane and cell surface proteins and peptides Photosystem I subunits PsaA/PsaB Photosystem I subunits PsaA/PsaB Photosystem I subunits PsaA/PsaB automated matches (Nostoc sp. PCC 7120 = FACHB-418 ) [TaxId: 103690 ]
Pd6k61c_ Alpha and beta proteins (a+b) Ferredoxin-like 4Fe-4S ferredoxins 7-Fe ferredoxin automated matches (Nostoc sp. PCC 7120 = FACHB-418 ) [TaxId: 103690 ]
Qd6k61d_ Alpha and beta proteins (a+b) Photosystem I subunit PsaD Photosystem I subunit PsaD Photosystem I subunit PsaD automated matches (Nostoc sp. PCC 7120 = FACHB-418 ) [TaxId: 103690 ]
Fd6k61e_ All beta proteins SH3-like barrel Electron transport accessory proteins Photosystem I accessory protein E (PsaE) automated matches (Nostoc sp. PCC 7120 = FACHB-418 ) [TaxId: 103690 ]
Gd6k61f_ Membrane and cell surface proteins and peptides Single transmembrane helix Subunit III of photosystem I reaction centre, PsaF Subunit III of photosystem I reaction centre, PsaF automated matches (Nostoc sp. PCC 7120 = FACHB-418 ) [TaxId: 103690 ]
Hd6k61j_ Membrane and cell surface proteins and peptides Single transmembrane helix Subunit IX of photosystem I reaction centre, PsaJ Subunit IX of photosystem I reaction centre, PsaJ automated matches (Nostoc sp. PCC 7120 = FACHB-418 ) [TaxId: 103690 ]
Kd6k61l_ Membrane and cell surface proteins and peptides Photosystem I reaction center subunit XI, PsaL Photosystem I reaction center subunit XI, PsaL automated matches automated matches (Nostoc sp. PCC 7120 = FACHB-418 ) [TaxId: 103690 ]
Ld6k61m_ Membrane and cell surface proteins and peptides Single transmembrane helix Subunit XII of photosystem I reaction centre, PsaM Subunit XII of photosystem I reaction centre, PsaM automated matches (Nostoc sp. PCC 7120 = FACHB-418 ) [TaxId: 103690 ]
ChainDomainClassArchitectureTopologyHomology
A1.20.1130.10 Mainly Alpha Up-down Bundle Photosystem I p700 chlorophyll A apoprotein A1 Photosystem I PsaA/PsaB
M1.20.1130.10 Mainly Alpha Up-down Bundle Photosystem I p700 chlorophyll A apoprotein A1 Photosystem I PsaA/PsaB
C1.20.1130.10 Mainly Alpha Up-down Bundle Photosystem I p700 chlorophyll A apoprotein A1 Photosystem I PsaA/PsaB
O1.20.1130.10 Mainly Alpha Up-down Bundle Photosystem I p700 chlorophyll A apoprotein A1 Photosystem I PsaA/PsaB
D3.30.70.20 Alpha Beta 2-Layer Sandwich Alpha-Beta Plaits
P3.30.70.20 Alpha Beta 2-Layer Sandwich Alpha-Beta Plaits
E3.30.1470.10 Alpha Beta 2-Layer Sandwich Photosystem 1 Reaction Centre Subunit Ii Chain: D
Q3.30.1470.10 Alpha Beta 2-Layer Sandwich Photosystem 1 Reaction Centre Subunit Ii Chain: D
F2.30.30.50 Mainly Beta Roll SH3 type barrels.
R2.30.30.50 Mainly Beta Roll SH3 type barrels.
G1.10.8.110 Mainly Alpha Orthogonal Bundle Helicase, Ruva Protein domain 3
S1.10.8.110 Mainly Alpha Orthogonal Bundle Helicase, Ruva Protein domain 3
H1.20.5.510 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Single helix bin
T1.20.5.510 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Single helix bin

Protein Family Annotation Pfam Database Homepage

ChainsAccessionIdentifierDescriptionCommentsSource
A, MPF00223Photosystem I psaA/psaB protein (PsaA_PsaB)Photosystem I psaA/psaB protein- Family
B, NPF08078PsaX family (PsaX)PsaX family- Family
C, OPF00223Photosystem I psaA/psaB protein (PsaA_PsaB)Photosystem I psaA/psaB protein- Family
D, PPF128384Fe-4S dicluster domain (Fer4_7)4Fe-4S dicluster domainSuperfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. Domain contai ...Superfamily includes proteins containing domains which bind to iron-sulfur clusters. Members include bacterial ferredoxins, various dehydrogenases, and various reductases. Structure of the domain is an alpha-antiparallel beta sandwich. Domain contains two 4Fe4S clusters.
Domain
E, QPF02531PsaD (PsaD)PsaD- Family
F, RPF02427Photosystem I reaction centre subunit IV / PsaE (PSI_PsaE)Photosystem I reaction centre subunit IV / PsaEPsaE is a 69 amino acid polypeptide from photosystem I present on the stromal side of the thylakoid membrane [1]. The structure is comprised of a well-defined five-stranded beta-sheet similar to SH3 domains [1].Domain
G, SPF02507Photosystem I reaction centre subunit III (PSI_PsaF)Photosystem I reaction centre subunit III- Family
H, TPF01701Photosystem I reaction centre subunit IX / PsaJ (PSI_PsaJ)Photosystem I reaction centre subunit IX / PsaJ- Family
I, UPF01241Photosystem I psaG / psaK (PSI_PSAK)Photosystem I psaG / psaK- Family
J, VPF00796Photosystem I reaction centre subunit VIII (PSI_8)Photosystem I reaction centre subunit VIII- Family
K, WPF02605Photosystem I reaction centre subunit XI (PsaL)Photosystem I reaction centre subunit XI- Family
L, XPF07465Photosystem I protein M (PsaM) (PsaM)Photosystem I protein M (PsaM)- Family

Gene Product Annotation Gene Product Annotation

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, aPhotosystem I P700 chlorophyll a apoprotein A1
X, xPhotosystem I 4.8 kDa protein
B, bPhotosystem I P700 chlorophyll a apoprotein A2 1
C, cPhotosystem I iron-sulfur center
D, dPhotosystem I reaction center subunit II
E, ePhotosystem I reaction center subunit IV
F, fPhotosystem I reaction center subunit III
J, jPhotosystem I reaction center subunit IX
K, kPhotosystem I reaction center subunit PsaK 1
I, iPhotosystem I reaction center subunit VIII
L, lPhotosystem I reaction center subunit XI
M, mPhotosystem I reaction center subunit XII