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9uof

PSI-6 FCPI supercomplex from haptophyte Chrysotila roscoffensis

Method: ELECTRON MICROSCOPY D_max: 178.6 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9uof
deposition_date	2025-04-25
title	PSI-6 FCPI supercomplex from haptophyte Chrysotila roscoffensis
keywords	photosystem I, photosynthesis, chlorophyll, light-harvesting complex, biogenesis, assembly, LHCI, FCPI, coccolithophore, haptophyte; PHOTOSYNTHESIS
method	ELECTRON MICROSCOPY

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Download Data

SAXS curve (.dat) P(r) distribution (.pr.out) Structure (CIF)

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2. SAXS Parameters (CRYSOL)

rg_guinier	51.37 Å
rg_electron	51.09 Å
i0	2118410000.00
molecular_weight	504490.0 kDa
excluded_volume	674640 Å³
envelope_volume	783620 Å³
shell_volume	121000 Å³
envelope_diameter	190.2 Å
shell_rg	58.40 Å
envelope_rg	51.82 Å
shape_rg	51.12 Å
total_rg	51.20 Å
total_atoms	35951
n_residues	3187
n_harmonics	20
q_range	— – 0.5000 Å⁻¹
n_points	101
shell_type	directional
solvent_density	0.3340 e/Å³
contrast_shell	0.0300 e/Å³
crysol_version	4.1.3

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3. P(r) Analysis (GNOM)

dmax	178.6 Å
rg_real	51.31 Å
rg_real_error	1.56 Å
i0_real	2.1180e+09
i0_real_error	4.8230e+07
rg_reciprocal	51.41 Å
i0_reciprocal	2119000000.0000
total_estimate	0.8515
solution_quality	GOOD a GOOD solution
n_peaks	2
r_peak_primary	57.6 Å
skewness	0.376
kurtosis	-0.124
angular_range	— – 0.1550 Å⁻¹
current_alpha	0.0000
highest_alpha	286500000.0000
n_real_points	32
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.722; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.900

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4. Crystallography & Experiment

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5. Entities & Polymer Info (30)

Entity 1 polymer

description	Photosystem I P700 chlorophyll a apoprotein A1 (psaA)
formula_weight	83368.9 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	A
atom_count	36741

MKIGSKELEAKKVQVVVDKDPVVTSFEKWAQPGHFSRTLAKGPKTTTWIWNLHADAHDFDSQTSSLEDISRKIFSAHFGQLAIIFLWISGMYFHGARFSNYSAWLANPTTIKPSAQVVWPIVGQEILNGDVGGGFAGVQITSGFFQLWRASGITSEIELYWTAIGGLIMSALMVFAGWFHYHKAAPKLEWFQNAESMMNHHLAGLLGLGCLGWAGHQIHVSLPINKLLDAGVSPQEIPLPYELIFNQDLMAQLYPSFKQGLVPFFTLNWSAYSDFLTFKGGLNPITGSLWLSDTAHHHLALSVLFIFAGHMYRTNWGIGHSMKEILEAHKGPLTGEGHKGLYEILTTSWHAQLAINLAMMGSVSIIVAHHMYAMPPYPYIGIDYPTQLSLFTHHMWIGGFCVCGAGAHASIFMVRDYSPVQSYNNLLDRVLRHRDAIISHLNWVCIFLGTHSFGLYIHNDTMRALGRPQDMFSDKAIQLQPIFAQWVQSLHTLAPGNTAPNALATTSYAFGGDVVAVNGKIAMMPIALGTADFLVHHIHAFTIHVTVLILLKGTLFARNSRLIPDKANLGFRFPCDGPGRGGTCQVSAWDHVFLGLFWMYNCISVVIFHFSWKMQSDVWGTVSAAGKISHVTGGNFANSALTINGWLRDFLWSEASQVIQSYGSALSAYGLIFLGAHFIWAFSLMFLFSGRGYWQELIESIVWAHSKLKLAPAIQPRALSITQGRAVGLAHYLLGGIGTTWSFFLARIISVG

Entity 2 polymer

description	Photosystem I P700 chlorophyll a apoprotein A2 (psaB)
formula_weight	82002.9 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	B

MATKFPKFSQALAQDPATRRIWYGIATAHDLESHDGMSEENLYQKIFASHFGHLAIIFLWTSGNLFHVAWQGNFQQWVLNPLKVKPIAHAIWDPHFGQSAIKAFTRAGVSYPVNIATSGVYHWWYTIGMRTNNDLYFGALGLLILSTALLFAGWLHLQPKFRPGLAWFKNNESRLNHHLSGLFGVSSLAWSGHLIHVAIPESRGQHIGWDNFTSTLPHPDGLTPFFTGNWGLYAENPDTVKHIFGTSEGAGTAILTFLGGFHPQTQSMWLTDIAHHHLAIAVLFIFAGHMYRTNWGIGHSMKEILDAHVPPKGRLGAGHRGLFETITDSLHMQLGLALASLGVATSLVAQHMYALPPYAFMAKDYVTQAALYTHHQYIAGFLMVGAFAHGAIFFVRDYDPEVNKDNVLARMLQHKEAIISHLSWVSLFLGFHTLGLYIHNDVCVAFGTPEKQILFEPVFAQFIQASSGKAVYGFDVLLSSSTSAATVASSKIWLPGWLEAINSGKNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKKDFGYSFPCDGPGRGGTCDISAWDAFYLAMFWMLNTIGWVTFYWHFKHMTIWGGNAAAFNESSTYLMGWLRDYLWLNSSPLINGYNAFGMNAQAVWAWMFLFGHLIWATGFMFLISWRGYWQELIETLVWAHERTPIANLVRWKDKPVALSIVQARLVGLAHFTVGYIFTYAPFVIASTTGKFG

Entity 3 polymer

description	Photosystem I iron-sulfur center (psaC)
formula_weight	8836.2 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	C

MSHNVRIYDTCIGCTQCVRACPCDVLEMVPWDGCKAGQIASAPRAEDCIGCKRCETACPTDFLSVRVYLGSETTRSLGLSY

Entity 4 polymer

description	Photosystem I reaction center subunit II (psaD)
formula_weight	15936.1 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	D

MSTDILNLQIPSPTFGGSTGGWLRAAETEEKYAITWTSKKEQVFEMPTSGSAIMQKGENLLYLAKKEQCLALGSQLRTGFKIQDYKIYRIFPNSEIQYLHPKDGVFPEKLNEGRIGVGNVDHSIGKNKQPVNVKFSGRNTFD

Entity 5 polymer

description	Photosystem I reaction center subunit IV (psaE)
formula_weight	7342.3 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	E

MVSRGSVVRVMRPESYWFQETGTVATIAKGGDRYPVVVRFDKVNYAGVATNNFAVDELVEVSAPPAK

Entity 6 polymer

description	Photosystem I reaction center subunit III (psaF)
formula_weight	20163.4 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	F

MKRILSILFLFSVIGNAPLVASADVSGLVPCKDSSVFNRRLDGSVKKLTTRLKNYEEGTPAYLALEQQIAQTKTRFAMYADKGLLCGTDGLPHLIADGRFSHAGEFMIPGVGFLYITGWIGWAGRSYLQFSKKTDKPNESEIIINVPVALSMMSAAFIWPLAAWKELVSGQLLVSADEITVSPR

Entity 7 polymer

description	Photosystem I reaction center subunit VIII (psaI)
formula_weight	3900.7 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	I

MTASFLPSILTPVVTLIFPGLCFALFFVLIEQEEI

Entity 8 polymer

description	Photosystem I reaction center subunit IX (psaJ)
formula_weight	4340.1 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	J

MDKNLLTYLSTAPVLLTAWMTITAGFSIEFLRFFPDAAA

Entity 9 polymer

description	Photosystem I reaction center subunit XI (psaL)
formula_weight	15045.3 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	L

MSEFVKPYNNDPFVGNLSTPVTTSTATKLYLGNLPIYRKGLSSLRRGLEIGMAHGYFLVGPFYLLGPLRNSESALLIGLFAAFGLILILTLALTIYGLASFQDNETGDALESSSGWQKFTSGFFVGASGGAVVAYVLLANI

Entity 10 polymer

description	Photosystem I reaction center subunit XII (psaM)
formula_weight	3082.7 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	M

MITDGQIFLALTVALTAAIFAIGLGRQLY

Entity 11 polymer

description	Fucoxanthin chlorophyll a/c binding protein III (FCPI-3)
formula_weight	21458.9 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	O

MTATAFSGPSLPVGRAAAPAISMMAERSASIPFLNKPPALDGSMVGDVGFDPLGFSTTITELGGDLNYVREAELMHGRQAMLATVGFVFPSIFGKIPSDWSASVSTDPLVAQYQLPGTVLGQLIFSIAVAEGIRASIIFKKDSVPGEHGFDPAGFIPKFCNTPEKMAEMKLKELKHCRIAMIAITGFFFQETITGHVVPFL

Entity 12 polymer

description	Fucoxanthin chlorophyll a/c binding protein VI (FCPI-6), GLY-CYS-PRO
formula_weight	24382.2 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	P

MLSLVASAPAFVPPTGLVAPAMQPLTQIRMAEGPMYDAPLAPSGMGAEFINAERAPISSYVGASWEAGDVVYDPLDLCELWKVSANNPDAAFLREAELKHCRLAMLAFAGIIHTSAGFHIPGEIWAVDDWSAALSTVQAKNPAALGQIFAGIGIIEGYTSKGVFDMWFGKTTVRAPGKLGFDPLGLMPKDKEGAAKMELSELKNGRMAMIAVAGIACNHYIPGSVPGCPFP

Entity 13 polymer

description	Fucoxanthin chlorophyll a/c binding protein IV (FCPI-4)
formula_weight	21064.5 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	Q

MLSLVSGSLAFTAPLTPAVTQTRAHAPNMLKSQALPFVEAPKALDGSMVGDVGFDPLNLSDGLDLKFMREAELKHGRICMLAWLGYVVVDLGITAPGAPSVSSLAAHDTAVKEGAMYLLLMLVSGFEAISTPAVYEMMSGQSDRKPGDFQLDPFGWAKGDKAEKMMLSEVIHCRTAMLAFSGVVTQSALKEIGFPYF

Entity 14 polymer

description	Photosystem I reaction center subunit psaR
formula_weight	9637.0 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	R

MELKAQDTWWGDKDYPDSIVLGIGKGVPSIVYSVSSLIALALGSYCVAESNLLNILSGSTVNGFYVVGAVLVPYSWGLHVAAWIQKQNGK

Entity 15 polymer

description	Fucoxanthin chlorophyll a/c binding protein II (FCPI-2)
formula_weight	22708.2 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	S

MAVRTLLLCAAIGSAAALTAPVTRAVRPAVRRTTDVQAVVNFDSAASQWNAEFPYLAKFGFGPSAKAERWNGRHAMFGWVVIVATGYAQSHGLIPSPDVPLSYSSWGGLAQMGFNEYITNERAVIMIAHTHFLAFSLAAAFGPKVLDSLTLANGESDEEPAGFMPAIQPGLTASAELLNGRMAMLGLVLLVLTSAFTGKEILDVVNIGLGGLLLK

Entity 16 polymer

description	Fucoxanthin chlorophyll a/c binding protein I (FCPI-1)
formula_weight	20547.6 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	U

MAAYLISLASPSFVPGAAVHHIAPTITSQQQIVAKVDGLVGDSAPLGFFDPLGYTKKASPADLKKYRECELKHGRVAMLASMGMVVADFWHPLYGGGNSANPLVAITQVPKAGLLQILAFIGFMEVMGQLNMQRADYEPGNFLGSGQWETSESWDDYQTRELNNGRLAMFASIGMLAHAALTGKGPLELIF

Entity 17 polymer

description	Fucoxanthin chlorophyll a/c binding protein V (FCPI-5)
formula_weight	21379.8 kDa
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	T

MISMVNAALAFAGQHAVLNGVARATAPVMQQKSQSVPFLDRPAALDGTMVGDVGFDPLGISSGIPMAWLRESELKHGRVCMLATVGYIAVDMGIRAPYAETLSVTSLTAHDATVATGQMWLLLIACGVLEVAGAAGIAATLSGSDRKPGYFAFDPLGFGKDPKQMERMELSEIKNGRLAMLAFSGIVTQDALFEHAKNFPYL

Entity 18 non-polymer

description	CHLOROPHYLL A
formula_weight	893.5 kDa
src_method	syn
entity_count	145

Entity 19 non-polymer

description	PHYLLOQUINONE
formula_weight	450.7 kDa
src_method	syn
entity_count	2

Entity 20 non-polymer

description	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE
formula_weight	723.0 kDa
src_method	syn
entity_count	3

Entity 21 non-polymer

description	BETA-CAROTENE
formula_weight	536.9 kDa
src_method	syn
entity_count	18

Entity 22 non-polymer

description	CHLOROPHYLL A ISOMER
formula_weight	893.5 kDa
src_method	syn
entity_count	1

Entity 23 non-polymer

description	IRON/SULFUR CLUSTER
formula_weight	351.6 kDa
src_method	syn
entity_count	3

Entity 24 non-polymer

description	(3S,3'R,5R,6S,7cis)-7',8'-didehydro-5,6-dihydro-5,6-epoxy-beta,beta-carotene-3,3'-diol
formula_weight	582.9 kDa
src_method	syn
entity_count	23

Entity 25 non-polymer

description	DIGALACTOSYL DIACYL GLYCEROL (DGDG)
formula_weight	949.3 kDa
src_method	syn
entity_count	1

Entity 26 non-polymer

description	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
formula_weight	795.1 kDa
src_method	syn
entity_count	2

Entity 27 non-polymer

description	1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE
formula_weight	787.2 kDa
src_method	syn
entity_count	6

Entity 28 non-polymer

description	Chlorophyll c1
formula_weight	610.9 kDa
src_method	syn
entity_count	9

Entity 29 non-polymer

description	;(3S,3'S,5R,5'R,6S,6'R,8'R)-3,5'-dihydroxy-8-oxo-6',7'-didehydro-5,5',6,6',7,8-hexahydro-5,6-epoxy-beta,beta-caroten-3'- yl acetate ;
formula_weight	658.9 kDa
src_method	syn
entity_count	7

Entity 30 water

description	water
formula_weight	18.0 kDa
src_method	nat
entity_count	790

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6. Citations (1)

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length_a	1.000 Å
length_b	1.000 Å
length_c	1.000 Å
angle_alpha	90.00 °
angle_beta	90.00 °
angle_gamma	90.00 °
z_pdb	—

space_group	P 1
int_tables_number	1
crystal_system	—

resolution	1.89 Å
resolution_method	—
num_particles	114380

fit	/app/data/saxs_computation/uo/9uof/9uof.fit
pddf	/app/data/pr_computation/uo/9uof/9uof.pr.out
profile	/app/data/saxs_computation/uo/9uof/9uof.dat

PSI-6 FCPI supercomplex from haptophyte Chrysotila roscoffensis

SAXS Profile

P(r) Distribution

1. Structure Basics

Download Data

2. SAXS Parameters (CRYSOL)

3. P(r) Analysis (GNOM)

4. Crystallography & Experiment

Unit Cell

Symmetry

EM 3D

5. Entities & Polymer Info (30)

Entity 1 polymer

Polymer

Entity 2 polymer

Polymer

Entity 3 polymer

Polymer

Entity 4 polymer

Polymer

Entity 5 polymer

Polymer

Entity 6 polymer

Polymer

Entity 7 polymer

Polymer

Entity 8 polymer

Polymer

Entity 9 polymer

Polymer

Entity 10 polymer

Polymer

Entity 11 polymer

Polymer

Entity 12 polymer

Polymer

Entity 13 polymer

Polymer

Entity 14 polymer

Polymer

Entity 15 polymer

Polymer

Entity 16 polymer

Polymer

Entity 17 polymer

Polymer

Entity 18 non-polymer

Entity 19 non-polymer

Entity 20 non-polymer

Entity 21 non-polymer

Entity 22 non-polymer

Entity 23 non-polymer

Entity 24 non-polymer

Entity 25 non-polymer

Entity 26 non-polymer

Entity 27 non-polymer

Entity 28 non-polymer

Entity 29 non-polymer

Entity 30 water

6. Citations (1)

7. Files & Curves (10)

Files (7)

Curves (3)