7KCG | pdb_00007kcg

Salivary protein from Culex quiquefasciatus that belongs to the Cysteine and Tryptophan-Rich (CWRC) family

PDB DOI: https://doi.org/10.2210/pdb7KCG/pdb

Classification: UNKNOWN FUNCTION
Organism(s): Culex quinquefasciatus
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2020-10-05 Released: 2021-06-02
Deposition Author(s): Garboczi, N.D., Gittis, A.G., Kern, O., Martin-Martin, I., Calvo, E.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.87 Å
R-Value Free:
0.254 (Depositor), 0.258 (DCC)
R-Value Work:
0.229 (Depositor), 0.231 (DCC)
R-Value Observed:
0.231 (Depositor)

Starting Model: in silico
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wwPDB Validation 3D Report Full Report

Validation slider image for 7KCG

This is version 1.2 of the entry. See complete history.

Literature

The structures of two salivary proteins from the West Nile vector Culex quinquefasciatus reveal a beta-trefoil fold with putative sugar binding properties

Kern, O., Valenzuela Leon, P.C., Gittis, A.G., Bonilla, B., Cruz, P., Chagas, A.C., Ganesan, S., Ribeiro, J.M., Garboczi, D.N., Martin-Martin, I., Calvo, E.

(2021) Curr Res Struct Biol 3: 95-105

DOI: https://doi.org/10.1016/j.crstbi.2021.03.001

Macromolecule Content

Total Structure Weight: 16.61 kDa
Atom Count: 1,158
Modeled Residue Count: 143
Deposited Residue Count: 143
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
16 kDa salivary peptide	A	143	Culex quinquefasciatus	Mutation(s): 0
UniProt
Find proteins for Q6TRZ5 (Culex quinquefasciatus) Explore Q6TRZ5 Go to UniProtKB: Q6TRZ5
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q6TRZ5
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
FMT Query on FMT Download:Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain C [auth A] SDF format, chain B [auth A] MOL2 format, chain D [auth A] MOL2 format, chain C [auth A] MOL2 format, chain B [auth A] mmCIF format, chain D [auth A] mmCIF format, chain C [auth A] mmCIF format, chain B [auth A]	B [auth A], C [auth A], D [auth A]	FORMIC ACID C H₂ O₂ BDAGIHXWWSANSR-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Focus chain C [auth A] Focus chain D [auth A] Interactions & Density Focus chain B [auth A] Focus chain C [auth A] Focus chain D [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.87 Å
R-Value Free: 0.254 (Depositor), 0.258 (DCC)
R-Value Work: 0.229 (Depositor), 0.231 (DCC)
R-Value Observed: 0.231 (Depositor)

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 34.8	α = 90
b = 59.68	β = 90
c = 85.44	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PDB_EXTRACT	data extraction
PHENIX	phasing

Structure Validation

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Entry History

Deposition Data

Released Date: 2021-06-02

Deposition Author(s):

Martin-Martin, I.

Revision History (Full details and data files)

Version 1.0: 2021-06-02
Type: Initial release
Version 1.1: 2024-04-03
Changes: Data collection, Database references, Refinement description
Version 1.2: 2024-11-20
Changes: Structure summary

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.