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9v6q

Cryo-EM structure of two cPRC1 complexes bound to opposite faces of an endogenous 147-bp mono-nucleosome

Method: ELECTRON MICROSCOPY D_max: 133.4 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9v6q
deposition_date	2025-05-27
title	Cryo-EM structure of two cPRC1 complexes bound to opposite faces of an endogenous 147-bp mono-nucleosome
keywords	histone modification, transcriptional regulation, GENE REGULATION; GENE REGULATION
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	42.82 Å
rg_electron	40.99 Å
i0	1164580000.00
molecular_weight	220290.0 kDa
excluded_volume	250670 Å³
envelope_volume	394390 Å³
shell_volume	77836 Å³
envelope_diameter	145.1 Å
shell_rg	48.27 Å
envelope_rg	40.30 Å
shape_rg	40.89 Å
total_rg	41.53 Å
total_atoms	27803
n_residues	1437
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	133.4 Å
rg_real	42.50 Å
rg_real_error	0.78 Å
i0_real	1.1650e+09
i0_real_error	2.0310e+07
rg_reciprocal	42.82 Å
i0_reciprocal	1165000000.0000
total_estimate	0.8882
solution_quality	GOOD a GOOD solution
n_peaks	2
r_peak_primary	57.7 Å
skewness	0.000
kurtosis	-0.519
angular_range	— – 0.1850 Å⁻¹
current_alpha	0.0000
highest_alpha	76450000.0000
n_real_points	38
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.879; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.947; Smooth: 0.957

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4. Crystallography & Experiment

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5. Entities & Polymer Info (9)

Entity 1 polymer

description	Histone H3.1
formula_weight	15437.2 kDa
src_method	nat
entity_count	2

Polymer

type	polypeptide(L)
strand_id	A,E
atom_count	27803

MARTKQTARKSTGGKAPRKQLATKAARKSAPATGGVKKPHRYRPGTVALREIRRYQKSTELLIRKLPFQRLVREIAQDFKTDLRFQSSAVMALQEACEAYLVGLFEDTNLCAIHAKRVTIMPKDIQLARRIRGERA

Entity 2 polymer

description	Histone H2A type 1-H
formula_weight	13935.3 kDa
src_method	nat
entity_count	2

Polymer

type	polypeptide(L)
strand_id	G,C

MSGRGKQGGKARAKAKTRSSRAGLQFPVGRVHRLLRKGNYAERVGAGAPVYLAAVLEYLTAEILELAGNAARDNKKTRIIPRHLQLAIRNDEELNKLLGKVTIAQGGVLPNIQAVLLPKKTESHHKAK

Entity 3 polymer

description	Histone H2B type 1-C/E/F/G/I
formula_weight	13937.2 kDa
src_method	nat
entity_count	2

Polymer

type	polypeptide(L)
strand_id	D,H

MPEPAKSAPAPKKGSKKAVTKAQKKDGKKRKRSRKESYSVYVYKVLKQVHPDTGISSKAMGIMNSFVNDIFERIAGEASRLAHYNKRSTITSREIQTAVRLLLPGELAKHAVSEGTKAVTKYTSSK

Entity 4 polymer

description	Histone H4
formula_weight	11394.4 kDa
src_method	nat
entity_count	2

Polymer

type	polypeptide(L)
strand_id	B,F

MSGRGKGGKGLGKGGAKRHRKVLRDNIQGITKPAIRRLARRGGVKRISGLIYEETRGVLKVFLENVIRDAVTYTEHAKRKTVTAMDVVYALKRQGRTLYGFGG

Entity 5 polymer

description	DNA (144-MER)
formula_weight	44217.2 kDa
src_method	nat
entity_count	1

Polymer

type	polydeoxyribonucleotide
strand_id	I

CGAGAATCCCGGTGCCGAGGCCGCTCAATTGGTCGTAGACAGCTCTAGCACCGCTTAAACGCACGTACGCGCTGTCCCCCGCGTTTTAACCGCCAAGGGGATTACTCCCTAGTCTCCAGGCACGTGTCAGATATATACATCCGA

Entity 6 polymer

description	DNA (145-MER)
formula_weight	44992.6 kDa
src_method	nat
entity_count	1

Polymer

type	polydeoxyribonucleotide
strand_id	J

TCGGATGTATATATCTGACACGTGCCTGGAGACTAGGGAGTAATCCCCTTGGCGGTTAAAACGCGGGGGACAGCGCGTACGTGCGTTTAAGCGGTGCTAGAGCTGTCTACGACCAATTGAGCGGCCTCGGCACCGGGATTCTCGA

Entity 7 polymer

description	Polycomb complex protein BMI-1
formula_weight	37006.1 kDa
src_method	man
entity_count	2

Polymer

type	polypeptide(L)
strand_id	M,K

MHRTTRIKITELNPHLMCVLCGGYFIDATTIIECLHSFCKTCIVRYLETSKYCPICDVQVHKTRPLLNIRSDKTLQDIVYKLVPGLFKNEMKRRRDFYAAHPSADAANGSNEDRGEVADEDKRIITDDEIISLSIEFFDQNRLDRKVNKDKEKSKEEVNDKRYLRCPAAMTVMHLRKFLRSKMDIPNTFQIDVMYEEEPLKDYYTLMDIAYIYTWRRNGPLPLKYRVRPTCKRMKISHQRDGLTNAGELESDSGSDKANSPAGGIPSTSSCLPSPSTPVQSPHPQFPHISSTMNGTSNSPSGNHQSSFANRPRKSSVNGSSATSSG

Source

organism	Homo sapiens
common_name	human
ncbi_taxonomy_id	9606
host_organism	Homo sapiens

Entity 8 polymer

description	E3 ubiquitin-protein ligase RING2
formula_weight	37706.4 kDa
ec_number	2.3.2.27
src_method	man
entity_count	2

Polymer

type	polypeptide(L)
strand_id	N,L

MSQAVQTNGTQPLSKTWELSLYELQRTPQEAITDGLEIVVSPRSLHSELMCPICLDMLKNTMTTKECLHRFCADCIITALRSGNKECPTCRKKLVSKRSLRPDPNFDALISKIYPSRDEYEAHQERVLARINKHNNQQALSHSIEEGLKIQAMNRLQRGKKQQIENGSGAEDNGDSSHCSNASTHSNQEAGPSNKRTKTSDDSGLELDNNNAAMAIDPVMDGASEIELVFRPHPTLMEKDDSAQTRYIKTSGNATVDHLSKYLAVRLALEELRSKGESNQMNLDTASEKQYTIYIATASGQFTVLNGSFSLELVSEKYWKVNKPMELYYAPTKEHK

Source

organism	Homo sapiens
common_name	human
ncbi_taxonomy_id	9606
host_organism	Homo sapiens

Entity 9 non-polymer

description	ZINC ION
formula_weight	65.4 kDa
src_method	syn
entity_count	8

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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	4.60 Å
resolution_method	—
num_particles	8700

fit	/app/data/saxs_computation/v6/9v6q/9v6q.fit
pddf	/app/data/pr_computation/v6/9v6q/9v6q.pr.out
profile	/app/data/saxs_computation/v6/9v6q/9v6q.dat

Cryo-EM structure of two cPRC1 complexes bound to opposite faces of an endogenous 147-bp mono-nucleosome

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 (9)

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

Source

Entity 8 polymer

Polymer

Source

Entity 9 non-polymer

6. Citations (1)

7. Files & Curves (10)

Files (7)

Curves (3)