[English] 日本語
Yorodumi
- PDB-36jk: Coagulation factor VIII, full-length, in solution-phase -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 36jk
TitleCoagulation factor VIII, full-length, in solution-phase
ComponentsCoagulation factor VIII
KeywordsBLOOD CLOTTING / coagulation factor VIII / proteinase cofactor / discoidin / peripheral membrane protein
Function / homology
Function and homology information


Defective F8 accelerates dissociation of the A2 domain / Defective F8 binding to the cell membrane / Defective F8 secretion / Defective F8 sulfation at Y1699 / Gamma carboxylation, hypusinylation, hydroxylation, and arylsulfatase activation / Defective F8 binding to von Willebrand factor / blood coagulation, intrinsic pathway / Amplification and propagation of coagulation cascade / Cargo concentration in the ER / Initiation of coagulation cascade ...Defective F8 accelerates dissociation of the A2 domain / Defective F8 binding to the cell membrane / Defective F8 secretion / Defective F8 sulfation at Y1699 / Gamma carboxylation, hypusinylation, hydroxylation, and arylsulfatase activation / Defective F8 binding to von Willebrand factor / blood coagulation, intrinsic pathway / Amplification and propagation of coagulation cascade / Cargo concentration in the ER / Initiation of coagulation cascade / COPII-coated ER to Golgi transport vesicle / Defective factor IX causes thrombophilia / Defective cofactor function of FVIIIa variant / Defective F9 variant does not activate FX / COPII-mediated vesicle transport / Regulation of clotting cascade / Defective F8 cleavage by thrombin / endoplasmic reticulum-Golgi intermediate compartment membrane / platelet alpha granule lumen / Golgi lumen / blood coagulation / Platelet degranulation / oxidoreductase activity / endoplasmic reticulum lumen / copper ion binding / extracellular region / plasma membrane
Similarity search - Function
Coagulation factor 5/8-like / : / Multicopper oxidases, conserved site / Multicopper oxidases signature 1. / Coagulation factors 5/8 type C domain (FA58C) signature 2. / Coagulation factors 5/8 type C domain (FA58C) signature 1. / Coagulation factor 5/8 C-terminal domain, discoidin domain / Multicopper oxidase, C-terminal / Multicopper oxidase / Coagulation factors 5/8 type C domain (FA58C) profile. ...Coagulation factor 5/8-like / : / Multicopper oxidases, conserved site / Multicopper oxidases signature 1. / Coagulation factors 5/8 type C domain (FA58C) signature 2. / Coagulation factors 5/8 type C domain (FA58C) signature 1. / Coagulation factor 5/8 C-terminal domain, discoidin domain / Multicopper oxidase, C-terminal / Multicopper oxidase / Coagulation factors 5/8 type C domain (FA58C) profile. / F5/8 type C domain / Coagulation factor 5/8 C-terminal domain / Multicopper oxidase, N-terminal / Multicopper oxidase / Cupredoxin / Galactose-binding-like domain superfamily
Similarity search - Domain/homology
COPPER (I) ION / Coagulation factor VIII
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.26 Å
AuthorsKolyadko, V.N. / Pumroy, R.A. / Moiseenkova-Bell, V.Y. / Krishnaswamy, S.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)P01HL139420 United States
CitationJournal: Proc Natl Acad Sci U S A / Year: 2026
Title: Structural basis for membrane binding by coagulation factors V and VIII and their specificity for phosphatidylserine-containing membranes.
Authors: Vladimir N Kolyadko / Ruth A Pumroy / Vera Y Moiseenkova-Bell / Sriram Krishnaswamy /
Abstract: Phosphatidylserine on the surface of activated cells serves as a signal for coagulation factor binding and the membrane-dependent assembly of enzyme complexes that drive the accelerated host response ...Phosphatidylserine on the surface of activated cells serves as a signal for coagulation factor binding and the membrane-dependent assembly of enzyme complexes that drive the accelerated host response to vascular damage. Here, we use single-particle cryo-EM of liposome-bound proteins to establish common mechanisms utilized by coagulation factors V and VIII for membrane binding and phospholipid specificity. The interface between these peripheral proteins and the membrane shows contacts between the discoidin C1 and C2 domains and the interfacial phospholipid headgroup region of the membrane bilayer. There is no evidence for the insertion of membrane-contacting protein loops into the membrane core. This refutes previous models of high affinity protein binding by insertion into the hydrophobic core of the membrane. We also resolve density for the headgroup of phosphatidylserine bound to conserved pockets within the C1 and C2 domains. These single binding pockets in each C domain highlight the network of putative hydrogen bonds that contribute to binding specificity for phosphatidylserine. Our results now provide a high-resolution structural view of the protein-membrane interface for these coagulation proteins and highlight the utility of using liposomes as near-physiologic membrane mimetics in structural studies. The principles established in this work may also apply to other biological systems wherein function is regulated by reversible membrane binding.
History
DepositionJun 14, 2026Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 16, 2026Provider: repository / Type: Initial release
Revision 1.0Sep 16, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Coagulation factor VIII
hetero molecules


Theoretical massNumber of molelcules
Total (without water)266,2867
Polymers265,0611
Non-polymers1,2246
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

-
Components

#1: Protein Coagulation factor VIII / Antihemophilic factor / AHF / Procoagulant component


Mass: 265061.062 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: heterodimer, contains a disordered B-domain, which undergoes heterogeneous proteolytic processing in host cells before secretion
Source: (gene. exp.) Homo sapiens (human) / Gene: F8, F8C / Cell line (production host): BHK / Production host: Mesocricetus auratus (golden hamster) / References: UniProt: P00451
#2: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#3: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical ChemComp-CU1 / COPPER (I) ION


Mass: 63.546 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Cu / Feature type: SUBJECT OF INVESTIGATION
#5: Chemical ChemComp-CPS / 3-[(3-CHOLAMIDOPROPYL)DIMETHYLAMMONIO]-1-PROPANESULFONATE / CHAPS


Mass: 614.877 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C32H58N2O7S / Comment: detergent*YM
Has ligand of interestY
Has protein modificationY

-
Experimental details

-
Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

-
Sample preparation

ComponentName: Coagulation factor VIII, glycosylated, bound to calcium (II) and copper (I)
Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Molecular weightValue: 0.33 MDa / Experimental value: YES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Mesocricetus auratus (golden hamster)
Buffer solutionpH: 7.4
Buffer component
IDConc.NameFormulaBuffer-ID
120 mMHEPES1
2150 mMsodium chlorideNaCl1
35 mMcalcium chlorideCaCl21
40.2 mMCHAPS1
SpecimenConc.: 5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid type: Quantifoil Active R1.2/0.8
VitrificationInstrument: SPT LABTECH CHAMELEON / Cryogen name: ETHANE / Humidity: 75 % / Chamber temperature: 300 K

-
Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 105000 X / Nominal defocus max: 5000 nm / Nominal defocus min: 400 nm
Specimen holderCryogen: NITROGEN
Image recordingAverage exposure time: 1.6 sec. / Electron dose: 46.76 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 2 / Num. of real images: 22605
Details: Images were collected at 40 frames per movie. Two datasets were collected - one grid was imaged at 0 tilt angle; another grid with the identical specimen was imaged at a 20-degree tilt angle.

-
Processing

EM software
IDNameVersionCategory
1cryoSPARCparticle selection
2Topazparticle selection
3PHENIX1.20.1_4487model refinement
14RELION53D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.26 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 198428 / Symmetry type: POINT
RefinementHighest resolution: 3.26 Å / Cross valid method: NONE
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more