7NMF

HLA-A*24:02 presenting "QLPRLFPLL" to Alpha/Beta T cell receptor at 2.98Å resolution

Data provenance

Structure downloaded from PDB Europe using the Coordinate Server. Aligned to residues 1-180 of 1HHK2 using the CEALIGN3 function of PyMol4. Chain assigment using a Levenshtein distance5 method using data from the PDBe REST API6. Organism data from PDBe REST API. Data for both of these operations from the Molecules endpoint. Structure visualised with 3DMol7.

Complex type

Class i with peptide and alpha beta tcr

1. Beta 2 microglobulin

['B']

2. Class I alpha
HLA-A*24:02

['A']

3. Peptide
QLPRLFPLL

['C']

4. T cell receptor alpha
TRAV5

['D']

5. T cell receptor beta
TRBV7

['E']

Information on this structure on STCRdab.

Species

Homo sapiens (Human)

Locus / Allele group

HLA-A / HLA-A*24

Publication

Human MHC Class I, A24 Allele presenting QLPRLFPLL, Complex with 4C6 TCR, monoclinic form

Rizkallahp, P.J., Sewell, A.K., Cole, D.K., Wall, A.

Structure deposition and release

Deposited: 2021-02-23

Released: 2022-09-07

Revised: 2022-09-07

Data provenance

Publication data retrieved from PDBe REST API8 and PMCe REST API9

Other structures from this publication

Peptide details

Length: Nonamer (9 amino acids)

Sequence: QLPRLFPLL

Interactive view

Cutaway side view (static)

Surface top view (static - coloured by atom property)

Cutaway top view (static)

Data provenance

MHC:peptide complexes are visualised using PyMol. The peptide is superimposed on a consistent cutaway slice of the MHC binding cleft (displayed as a grey mesh) which best indicates the binding pockets for the P1/P5/PC positions (side view - pockets A, E, F) and for the P2/P3/PC-2 positions (top view - pockets B, C, D). In some cases peptides will use a different pocket for a specific peptide position (atypical anchoring). On some structures the peptide may appear to sterically clash with a pocket. This is an artefact of picking a standardised slice of the cleft and overlaying the peptide.

Peptide neighbours

P1 GLN

GLU63

PHE33

ASP166

ARG170

TYR171

TYR159

TYR59

TYR7

LYS66

CYS164

GLU62

THR163

GLY167

MET5

P2 LEU

TYR159

TYR7

LYS66

HIS70

THR163

MET45

PHE99

GLU63

VAL67

P3 PRO

TYR159

LYS66

GLN156

PHE99

P4 ARG

LYS66

P5 LEU

GLN155

GLN156

P6 PHE

HIS70

HIS114

PHE99

GLN156

MET97

TYR116

THR73

LYS66

P7 PRO

ASN77

TRP147

HIS114

VAL152

GLN156

ASP74

TYR116

THR73

P8 LEU

THR143

THR73

ASN77

ILE80

TRP147

P9 LEU

ASN77

ILE124

THR143

TYR84

LEU95

TYR123

LYS146

TYR116

ILE80

TRP147

ALA81

Colour key

Aromatic Hydrophobic Acidic Basic Neutral/polar

Data provenance

Neighbours are calculated by finding residues with atoms within 5Å of each other using BioPython Neighboursearch module. The list of neighbours is then sorted and filtered to inlcude only neighbours where between the peptide and the MHC Class I alpha chain.

Colours selected to match the YRB scheme. [https://www.frontiersin.org/articles/10.3389/fmolb.2015.00056/full]

Binding cleft pockets

Peptide sidechain binding pockets (static)

Peptide terminii and backbone binding residues (static)

A Pocket

TYR159

THR163

GLY167

TYR171

MET5

TYR59

GLU63

LYS66

TYR7

B Pocket

ALA24

VAL34

MET45

GLU63

LYS66

VAL67

TYR7

HIS70

SER9

PHE99

C Pocket

HIS70

THR73

ASP74

SER9

MET97

D Pocket

HIS114

GLN155

GLN156

TYR159

LEU160

PHE99

E Pocket

HIS114

TRP147

VAL152

GLN156

MET97

F Pocket

TYR116

TYR123

THR143

LYS146

TRP147

ASN77

ILE80

ALA81

TYR84

LEU95

Colour key

Binds N-terminus Binds P1 backbone Binds P2 backbone Binds PC-1 backbone Binds C-terminus

Data provenance

N-/C-terminus and peptide backbone binding residues are assigned according to previously published information and pockets are assigned according to an adaptation of a previously published set of residues. All numbering is currently that of the 'canonical' structures of human and mouse MHC Class I molecules.

Chain sequences

1. Beta 2 microglobulin Beta 2 microglobulin	10 20 30 40 50 60 MIQRTPKIQVYSRHPAENGKSNFLNCYVSGFHPSDIEVDLLKNGERIEKVEHSDLSFSKD 70 80 90 WSFYLLYYTEFTPTEKDEYACRVNHVTLSQPKIVKWDRDM

2. Class I alpha HLA-A24:02 IPD-IMGT/HLA* [ipd-imgt:HLA34790]	10 20 30 40 50 60 GSHSMRYFSTSVSRPGRGEPRFIAVGYVDDTQFVRFDSDAASQRMEPRAPWIEQEGPEYW 70 80 90 100 110 120 DEETGKVKAHSQTDRENLRIALRYYNQSEAGSHTLQMMFGCDVGSDGRFLRGYHQYAYDG 130 140 150 160 170 180 KDYIALKEDLRSWTAADMAAQITKRKWEAAHVAEQQRAYLEGTCVDGLRRYLENGKETLQ 190 200 210 220 230 240 RTDPPKTHMTHHPISDHEATLRCWALGFYPAEITLTWQRDGEDQTQDTELVETRPAGDGT 250 260 270 FQKWAAVVVPSGEEQRYTCHVQHEGLPKPLTLRWEP

3. Peptide	QLPRLFPLL

4. T cell receptor alpha T cell receptor alpha TRAV5	10 20 30 40 50 60 GEDVEQSLFLSVREGDSSVINCTYTDSSSTYLYWYKQEPGAGLQLLTYIFSNMDMKQDQR 70 80 90 100 110 120 LTVLLNKKDKHLSLRIADTQTGDSAIYFCAEPSGNTGKLIFGQGTTLQVKPIQNPDPAVY 130 140 150 160 170 180 QLRDSKSSDKSVCLFTDFDSQTNVSQSKDSDVYITDKCVLDMRSMDFKSNSAVAWSNKSD 190 FACANAFNNSIIPE

5. T cell receptor beta T cell receptor beta TRBV7	10 20 30 40 50 60 TGVSQDPRHKITKRGQNVTFRCDPISEHNRLYWYRQTLGQGPEFLTYFQNEAQLEKSRLL 70 80 90 100 110 120 SDRFSAERPKGSFSTLEIQRTEQGDSAMYLCASSLHHEQYFGPGTRLTVTEDLKNVFPPE 130 140 150 160 170 180 VAVFEPSEAEISHTQKATLVCLATGFYPDHVELSWWVNGKEVHSGVCTDPQPLKEQPALN 190 200 210 220 230 DSRYALSSRLRVSATFWQDPRNHFRCQVQFYGLSENDEWTQDRAKPVTQIVSAEAWGRAD

Data provenance

Sequences are retrieved via the Uniprot method of the RSCB REST API. Sequences are then compared to those derived from the PDB file and matched against sequences retrieved from the IPD-IMGT/HLA database for human sequences, or the IPD-MHC database for other species. Mouse sequences are matched against FASTA files from Uniprot. Sequences for the mature extracellular protein (signal petide and cytoplasmic tail removed) are compared to identical length sequences from the datasources mentioned before using either exact matching or Levenshtein distance based matching.

Downloadable data

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Complete structures

Aligned structures [cif]

7NMF assembly 1

Components

MHC Class I alpha chain [cif]

7NMF assembly 1

MHC Class I antigen binding domain (alpha1/alpha2) [cif]

7NMF assembly 1

Peptide only [cif]

7NMF assembly 1

Derived data

Data for this page [json]

https://api.histo.fyi/v1/structures/7nmf

Data license

The data above is made available under a Creative Commons CC-BY 4.0 license. This means you can copy, remix, transform, build upon and redistribute the material, but you must give appropriate credit, provide a link to the license, and indicate if changes were made.

If you use any data downloaded from this site in a publication, please cite 'https://www.histo.fyi/'. A preprint is in preparation.

Footnotes

Protein Data Bank Europe - Coordinate Server
1HHK - HLA-A*02:01 binding LLFGYPVYV at 2.5Å resolution - PDB entry for 1HHK
Protein structure alignment by incremental combinatorial extension (CE) of the optimal path. - PyMol CEALIGN Method - Publication
PyMol - PyMol.org/pymol
Levenshtein distance - Wikipedia entry
Protein Data Bank Europe REST API - Molecules endpoint
3Dmol.js: molecular visualization with WebGL - 3DMol.js - Publication
Protein Data Bank Europe REST API - Publication endpoint
PubMed Central Europe REST API - Articles endpoint

This work is licensed under a Creative Commons Attribution 4.0 International License.