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11nd

Azotobacter vinelandii MoFeP (C2 symmetry) determined using the SPT Labtech chameleon in the presence of 0.25x SurfACT

Method: ELECTRON MICROSCOPY D_max: 124.3 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	11nd
deposition_date	2026-03-05
title	Azotobacter vinelandii MoFeP (C2 symmetry) determined using the SPT Labtech chameleon in the presence of 0.25x SurfACT
keywords	Nitrogenase, FeMoCo, nitrogen, P-cluster, METAL BINDING PROTEIN, OXIDOREDUCTASE; OXIDOREDUCTASE
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	38.52 Å
rg_electron	37.92 Å
i0	799385000.00
molecular_weight	229830.0 kDa
excluded_volume	285910 Å³
envelope_volume	334050 Å³
shell_volume	70043 Å³
envelope_diameter	127.0 Å
shell_rg	46.28 Å
envelope_rg	37.92 Å
shape_rg	37.92 Å
total_rg	38.33 Å
total_atoms	16021
n_residues	1998
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	124.3 Å
rg_real	38.41 Å
rg_real_error	0.74 Å
i0_real	7.9940e+08
i0_real_error	1.2200e+07
rg_reciprocal	38.48 Å
i0_reciprocal	799400000.0000
total_estimate	0.8968
solution_quality	GOOD a GOOD solution
n_peaks	0
r_peak_primary	— Å
skewness	0.252
kurtosis	-0.542
angular_range	— – 0.2050 Å⁻¹
current_alpha	0.0000
highest_alpha	257300000.0000
n_real_points	42
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.903; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.949

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4. Crystallography & Experiment

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5. Entities & Polymer Info (7)

Entity 1 polymer

description	Nitrogenase molybdenum-iron protein alpha chain
formula_weight	55363.0 kDa
ec_number	1.18.6.1
src_method	nat
entity_count	2

Polymer

type	polypeptide(L)
strand_id	A,C
atom_count	18652

MTGMSREEVESLIQEVLEVYPEKARKDRNKHLAVNDPAVTQSKKCIISNKKSQPGLMTIRGCAYAGSKGVVWGPIKDMIHISHGPVGCGQYSRAGRRNYYIGTTGVNAFVTMNFTSDFQEKDIVFGGDKKLAKLIDEVETLFPLNKGISVQSECPIGLIGDDIESVSKVKGAELSKTIVPVRCEGFRGVSQSLGHHIANDAVRDWVLGKRDEDTTFASTPYDVAIIGDYNIGGDAWSSRILLEEMGLRCVAQWSGDGSISEIELTPKVKLNLVHCYRSMNYISRHMEEKYGIPWMEYNFFGPTKTIESLRAIAAKFDESIQKKCEEVIAKYKPEWEAVVAKYRPRLEGKRVMLYIGGLRPRHVIGAYEDLGMEVVGTGYEFAHNDDYDRTMKEMGDSTLLYDDVTGYEFEEFVKRIKPDLIGSGIKEKFIFQKMGIPFREMHSWDYSGPYHGFDGFAIFARDMDMTLNNPCWKKLQAPWEASEGAEKVAASA

Entity 2 polymer

description	Nitrogenase molybdenum-iron protein beta chain
formula_weight	59535.9 kDa
ec_number	1.18.6.1
src_method	nat
entity_count	2

Polymer

type	polypeptide(L)
strand_id	B,D

MSQQVDKIKASYPLFLDQDYKDMLAKKRDGFEEKYPQDKIDEVFQWTTTKEYQELNFQREALTVNPAKACQPLGAVLCALGFEKTMPYVHGSQGCVAYFRSYFNRHFREPVSCVSDSMTEDAAVFGGQQNMKDGLQNCKATYKPDMIAVSTTCMAEVIGDDLNAFINNSKKEGFIPDEFPVPFAHTPSFVGSHVTGWDNMFEGIARYFTLKSMDDKVVGSNKKINIVPGFETYLGNFRVIKRMLSEMGVGYSLLSDPEEVLDTPADGQFRMYAGGTTQEEMKDAPNALNTVLLQPWHLEKTKKFVEGTWKHEVPKLNIPMGLDWTDEFLMKVSEISGQPIPASLTKERGRLVDMMTDSHTWLHGKRFALWGDPDFVMGLVKFLLELGCEPVHILCHNGNKRWKKAVDAILAASPYGKNATVYIGKDLWHLRSLVFTDKPDFMIGNSYGKFIQRDTLHKGKEFEVPLIRIGFPIFDRHHLHRSTTLGYEGAMQILTTLVNSILERLDEETRGMQATDYNHDLVR

Entity 3 non-polymer

description	3-HYDROXY-3-CARBOXY-ADIPIC ACID
formula_weight	206.2 kDa
src_method	syn
entity_count	2

Entity 4 non-polymer

description	iron-sulfur-molybdenum cluster with interstitial carbon
formula_weight	787.5 kDa
src_method	syn
entity_count	2

Entity 5 non-polymer

description	FE (III) ION
formula_weight	55.8 kDa
src_method	syn
entity_count	2

Entity 6 non-polymer

description	FE(8)-S(7) CLUSTER
formula_weight	671.2 kDa
src_method	syn
entity_count	2

Entity 7 water

description	water
formula_weight	18.0 kDa
src_method	nat
entity_count	2625

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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	2.060 Å
resolution_low	— Å
r_factor	—
r_work	—
r_free	—

resolution	2.06 Å
resolution_method	—
num_particles	100372

fit	/app/data/saxs_computation/1n/11nd/11nd.fit
pddf	/app/data/pr_computation/1n/11nd/11nd.pr.out
profile	/app/data/saxs_computation/1n/11nd/11nd.dat

Azotobacter vinelandii MoFeP (C2 symmetry) determined using the SPT Labtech chameleon in the presence of 0.25x SurfACT

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

Refinement

EM 3D

5. Entities & Polymer Info (7)

Entity 1 polymer

Polymer

Entity 2 polymer

Polymer

Entity 3 non-polymer

Entity 4 non-polymer

Entity 5 non-polymer

Entity 6 non-polymer

Entity 7 water

6. Citations (1)

7. Files & Curves (10)

Files (7)

Curves (3)