SAXSdb — 9vec

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1. Structure Basics

entry_id	9vec
deposition_date	2025-06-09
title	structure of human KCNQ1-KCNE1-CaM complex
keywords	potassium channel complex, membrane protein; MEMBRANE PROTEIN
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	41.06 Å
rg_electron	40.22 Å
i0	712447000.00
molecular_weight	225130.0 kDa
excluded_volume	283930 Å³
envelope_volume	387460 Å³
shell_volume	76411 Å³
envelope_diameter	120.5 Å
shell_rg	49.14 Å
envelope_rg	39.38 Å
shape_rg	40.21 Å
total_rg	40.70 Å
total_atoms	15880
n_residues	2088
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	119.0 Å
rg_real	40.78 Å
rg_real_error	0.67 Å
i0_real	7.1240e+08
i0_real_error	1.1500e+07
rg_reciprocal	41.06 Å
i0_reciprocal	712700000.0000
total_estimate	0.8838
solution_quality	GOOD a GOOD solution
n_peaks	1
r_peak_primary	53.2 Å
skewness	0.007
kurtosis	-0.559
angular_range	— – 0.1900 Å⁻¹
current_alpha	0.0000
highest_alpha	52190000.0000
n_real_points	39
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.962; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.973; Smooth: 0.625

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4. Crystallography & Experiment

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5. Entities & Polymer Info (4)

Entity 1 polymer

description	Calmodulin-1
formula_weight	16852.5 kDa
src_method	man
entity_count	4

Polymer

type	polypeptide(L)
strand_id	K,B,E,H
atom_count	15880

MADQLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTAK

Source

organism	Homo sapiens
common_name	human
ncbi_taxonomy_id	9606
host_organism	Homo sapiens

Entity 2 polymer

description	Potassium voltage-gated channel subfamily E member 1
formula_weight	14664.7 kDa
mutation	K41C
src_method	man
entity_count	4

Polymer

type	polypeptide(L)
strand_id	I,C,F,L

MILSNTTAVTPFLTKLWQETVQQGGNMSGLARRSPRSSDGCLEALYVLMVLGFFGFFTLGIMLSYIRSKKLEHSNDPFNVYIESDAWQEKDKAYVQARVLESYRSCYVVENHLAIEQPNTHLPETKPSP

Source

organism	Homo sapiens
common_name	human
ncbi_taxonomy_id	9606
host_organism	Homo sapiens

Entity 3 polymer

description	Potassium voltage-gated channel subfamily KQT member 1
formula_weight	62076.3 kDa
mutation	I145C
src_method	man
entity_count	4

Polymer

type	polypeptide(L)
strand_id	J,A,D,G

MASDLGPRPPVSLDPRVSIYSTRRPVLARTHVQGRVYNFLERPTGWKCFVYHFAVFLIVLVCLIFSVLSTCEQYAALATGTLFWMEIVLVVFFGTEYVVRLWSAGCRSKYVGLWGRLRFARKPISIIDLIVVVASMVVLCVGSKGQVFATSAIRGIRFLQILRMLHVDRQGGTWRLLGSVVFIHRQELITTLYIGFLGLIFSSYFVYLAEKDAVNESGRVEFGSYADALWWGVVTVTTIGYGDKVPQTWVGKTIASCFSVFAISFFALPAGILGSGFALKVQQKQRQKHFNRQIPAAASLIQTAWRCYAAENPDSSTWKIYIRKAPRSHTLLSPSPKPKKSVVVKKKKFKLDKDNGVTPGEKMLTVPHITCDPPEERRLDHFSVDGYDSSVRKSPTLLEVSMPHFMRTNSFAEDLDLEGETLLTPITHISQLREHHRATIKVIRRMQYFVAKKKFQQARKPYDVRDVIEQYSQGHLNLMVRIKELQRRLDQSIGKPSLFISVSEKSKDRGSNTIGARLNRVEDKVTQLDQRLALITDMLHQLLSLH

Source

organism	Homo sapiens
common_name	human
ncbi_taxonomy_id	9606
host_organism	Homo sapiens

Entity 4 non-polymer

description	CALCIUM ION
formula_weight	40.1 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	2.70 Å
resolution_method	—
num_particles	148708

fit	/app/data/saxs_computation/ve/9vec/9vec.fit
pddf	/app/data/pr_computation/ve/9vec/9vec.pr.out
profile	/app/data/saxs_computation/ve/9vec/9vec.dat

structure of human KCNQ1-KCNE1-CaM complex

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 (4)

Entity 1 polymer

Polymer

Source

Entity 2 polymer

Polymer

Source

Entity 3 polymer

Polymer

Source

Entity 4 non-polymer

6. Citations (1)

7. Files & Curves (10)

Files (7)

Curves (3)