2BCK: HLA-A*2402

Crystal Structure of HLA-A*2402 Complexed with a telomerase peptide. Determined by X-ray diffraction at 2.8 Å resolution. Released 10 Jan 2006.

Method: X-ray diffraction
Resolution: 2.8 Å
Organism: Homo sapiens
Chains: 6
Atoms: 6,614
Mol. weight: 94.39 kDa
Released: 10 Jan 2006

Explore 2BCK in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

2BCK contains 24 α-helices and 60 β-strands across 4 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 11 helices, 19 β-strands

Element	Residues	Length	Sheet
β-strand	3-12	10	1
α-helix	20	1
β-strand	21-28	8	1
β-strand	31-37	7	1
β-strand	46-47	2	1
α-helix	50-52	3
α-helix	57-84	28
β-strand	94-103	10	1
β-strand	109-118	10	1
β-strand	121-126	6	1
β-strand	133-135	3	1
α-helix	138-149	12
α-helix	152-157	6
α-helix	158-164	7
α-helix	165-173	9
α-helix	176-179	4
β-strand	183	1	2
α-helix	184-185	2
β-strand	188-193	6	3
β-strand	198-208	11	3
β-strand	209	1	2
β-strand	214-219	6	4
β-strand	222-223	2	4
α-helix	225-227	3
β-strand	228-230	3	3
β-strand	234-235	2	3
β-strand	241-250	10	3
α-helix	254-256	3
β-strand	257-262	6	4
β-strand	270-272	3	4

Chain B: 2 helices, 11 β-strands

Element	Residues	Length	Sheet
β-strand	3	1	5
β-strand	6-11	6	6
β-strand	21-30	10	6
β-strand	31	1	5
β-strand	36-41	6	7
β-strand	44-45	2	7
α-helix	46	1
β-strand	50-51	2	6
α-helix	52-54	3
β-strand	55-56	2	6
β-strand	62-70	9	6
β-strand	78-83	6	7
β-strand	91-94	4	7

Chain D: 9 helices, 19 β-strands

Element	Residues	Length	Sheet
β-strand	3-12	10	8
α-helix	20	1
β-strand	21-28	8	8
β-strand	31-37	7	8
β-strand	46-47	2	8
α-helix	57-85	29
β-strand	94-103	10	8
β-strand	109-118	10	8
β-strand	122-126	5	8
β-strand	133-135	3	8
α-helix	138-149	12
α-helix	152-158	7
α-helix	159-163	5
α-helix	164-174	11
α-helix	176-179	4
β-strand	183	1	9
α-helix	184-185	2
β-strand	186-193	8	10
β-strand	198-208	11	10
β-strand	209	1	9
β-strand	214-219	6	11
β-strand	222-223	2	11
β-strand	228-230	3	10
α-helix	231-233	3
β-strand	234-235	2	10
β-strand	241-250	10	10
β-strand	257-262	6	11
β-strand	270-273	4	11

Chain E: 2 helices, 11 β-strands

Element	Residues	Length	Sheet
β-strand	3	1	12
β-strand	6-11	6	13
β-strand	21-30	10	13
β-strand	31	1	12
β-strand	36-41	6	14
β-strand	44-45	2	14
α-helix	46	1
β-strand	50-51	2	13
α-helix	52-54	3
β-strand	56	1	13
β-strand	62-70	9	13
β-strand	78-83	6	14
β-strand	91-94	4	14

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
HLA class I histocompatibility antigen, A-24 alpha chain	A, D	protein	294	Homo sapiens	P04439 (AlphaFold model)
Beta-2-microglobulin	B, E	protein	100	Homo sapiens	P61769 (AlphaFold model)
Telomerase reverse transcriptase	C, F	protein	9		O14746 (AlphaFold model)

Sequence of entity 1 (A, D), FASTA

>2BCK_1 HLA class I histocompatibility antigen, A-24 alpha chain (chains A, D)
GSHSMRYFSTSVSRPGRGEPRFIAVGYVDDTQFVRFDSDAASQRMEPRAPWIEQEGPEYW
DEETGKVKAHSQTDRENLRIALRYYNQSEAGSHTLQMMFGCDVGSDGRFLRGYHQYAYDG
KDYIALKEDLRSWTAADMAAQITKRKWEAAHVAEQQRAYLEGTCVDGLRRYLENGKETLQ
RTDPPKTHMTHHPISDHEATLRCWALGFYPAEITLTWQRDGEDQTQDTELVETRPAGDGT
FQKWAAVVVPSGEEQRYTCHVQHEGLPKPLTLRWEPGSGGGLNDIFEAQKIEWH

Sequence of entity 2 (B, E), FASTA

>2BCK_2 Beta-2-microglobulin (chains B, E)
MIQRTPKIQVYSRHPAENGKSNFLNCYVSGFHPSDIEVDLLKNGERIEKVEHSDLSFSKD
WSFYLLYYTEFTPTEKDEYACRVNHVTLSQPKIVKWDRDM

Sequence of entity 3 (C, F), FASTA

>2BCK_3 Telomerase reverse transcriptase (chains C, F)
VYGFVRACL

Primary citation

Crystal structure of HLA-A*2402 complexed with a telomerase peptide. Cole, D.K., Rizkallah, P.J., Gao, F. et al. Eur J Immunol (2006) 36:170-179. DOI 10.1002/eji.200535424 · PubMed

Other PDB entries of the same protein (UniProt P04439 (AlphaFold model), which also has an AlphaFold model), best resolution first:

3MRE 1.1 Å, Crystal Structure of MHC class I HLA-A2 molecule complexed with EBV bmlf1-280-288…
3D25 1.3 Å, Crystal structure of HA-1 minor histocompatibility antigen bound to human class I MHC…
3MRG 1.3 Å, Crystal Structure of MHC class I HLA-A2 molecule complexed with HCV NS3-1073-1081…
6JOZ 1.35 Å, Crystal structure of BRLF peptide from EBV in complex with HLA-A1101.
5C0G 1.37 Å, HLA-A02 carrying YLGGPDFPTI
5N1Y 1.39 Å, HLA-A02 carrying MVWGPDPLYV
1I4F 1.4 Å, Crystal structure of HLA-A*0201/MAGE-A4-peptide complex
1OGA 1.4 Å, A structural basis for immunodominant human T-cell receptor recognition.
3MRB 1.4 Å, Crystal Structure of MHC class I HLA-A2 molecule complexed with HCMV pp65-495-503…
3MRK 1.4 Å, Crystal Structure of MHC class I HLA-A2 molecule complexed with AFP137 nonapeptide
6J2A 1.4 Å, The structure of HLA-A*3003/NP44
1X7Q 1.45 Å, Crystal structure of HLA-A*1101 with sars nucleocapsid peptide

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