1K5N: HLA-B*2709

HLA-B*2709 bound to nona-peptide M9. Determined by X-ray diffraction at 1.09 Å resolution. Released 30 Oct 2002.

Method: X-ray diffraction
Resolution: 1.09 Å
Organism: Homo sapiens
Chains: 3
Atoms: 4,333
Mol. weight: 44.92 kDa
Released: 30 Oct 2002

Explore 1K5N in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1K5N contains 14 α-helices and 30 β-strands across 2 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	152-161	10
α-helix	163-174	12
α-helix	182	1
β-strand	183	1	2
α-helix	184-185	2
β-strand	186-195	10	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	229-230	2	3
α-helix	231-233	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: 3 helices, 11 β-strands

Element	Residues	Length	Sheet
β-strand	3	1	5
α-helix	4-5	2
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

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
major histocompatibility complex molecule HLA-B*2709	A	protein	276	Homo sapiens	P01889 (AlphaFold model)
beta-2-microglobulin, light chain	B	protein	100	Homo sapiens	P61769 (AlphaFold model)
nonameric model peptide m9	C	protein	9

Sequence of entity 1 (A), FASTA

>1K5N_1 major histocompatibility complex molecule HLA-B*2709 (chains A)
GSHSMRYFHTSVSRPGRGEPRFITVGYVDDTLFVRFDSDAASPREEPRAPWIEQEGPEYW
DRETQICKAKAQTDREDLRTLLRYYNQSEAGSHTLQNMYGCDVGPDGRLLRGYHQHAYDG
KDYIALNEDLSSWTAADTAAQITQRKWEAARVAEQLRAYLEGECVEWLRRYLENGKETLQ
RADPPKTHVTHHPISDHEATLRCWALGFYPAEITLTWQRDGEDQTQDTELVETRPAGDRT
FQKWAAVVVPSGEEQRYTCHVQHEGLPKPLTLRWEP

Sequence of entity 2 (B), FASTA

>1K5N_2 beta-2-microglobulin, light chain (chains B)
MIQRTPKIQVYSRHPAENGKSNFLNCYVSGFHPSDIEVDLLKNGERIEKVEHSDLSFSKD
WSFYLLYYTEFTPTEKDEYACRVNHVTLSQPKIVKWDRDM

Sequence of entity 3 (C), FASTA

>1K5N_3 nonameric model peptide m9 (chains C)
GRFAAAIAK

Primary citation

HLA-B27 Subtypes Differentially Associated with Disease Exhibit Subtle Structural Alterations. Hulsmeyer, M., Hillig, R.C., Volz, A. et al. J Biol Chem (2002) 277:47844-47853. DOI 10.1074/jbc.M206392200 · PubMed

Other PDB entries of the same protein (UniProt P01889 (AlphaFold model), which also has an AlphaFold model), best resolution first:

4U1M 1.18 Å, HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential…
3CZF 1.2 Å, Crystal structure of HLA-B*2709 complexed with the glucagon receptor (GR) peptide…
6MT3 1.21 Å, Crystal Structure of HLA-B*18:01 in complex with NP338 influenza peptide
3LN4 1.3 Å, Crystal structure of HLA-B*4103 in complex with a 16mer self-peptide derived from…
3BWA 1.3 Å, Crystal Structure of HLA B*3508 in complex with a HCMV 8-mer peptide from the pp65 protein
3SPV 1.3 Å, Crystal structure of a peptide-HLA complex
6MT6 1.31 Å, Crystal Structure of HLA-B*37:01 in complex with NP338 influenza peptide
2BVP 1.35 Å, Structures of Three HIV-1 HLA-B5703-Peptide Complexes and Identification of Related HLAs…
6MTL 1.35 Å, Crystal Structure of HLA-B*44:05 in complex with NP338 influenza peptide
4U1J 1.38 Å, HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential…
6PYW 1.38 Å, Crystal Structure of HLA-B*2705-W60A in complex with LRN, a self-peptide
6P2C 1.4 Å, Structure of a nested set of N-terminally extended MHC I-peptides provides novel…

Browse structure collections

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