3PMH: Thrombin alpha-chain

Mechanism of Sulfotyrosine-Mediated Glycoprotein Ib Interaction with Two Distinct alpha-Thrombin Sites. Determined by X-ray diffraction at 3.2 Å resolution. Released 1 Jun 2011.

Method
X-ray diffraction
Resolution
3.2 Å
Organism
Homo sapiens
Chains
3
Atoms
4,723
Mol. weight
68.01 kDa
Ligands
NAG, 0G7
Released
1 Jun 2011

Explore 3PMH in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

3PMH contains 20 α-helices and 39 β-strands across 3 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: 3 helices, 0 β-strands

ElementResiduesLengthSheet
α-helix8-103
α-helix14C-14G5
α-helix14H-14J3
Chain B: 12 helices, 22 β-strands
ElementResiduesLengthSheet
β-strand1711
β-strand20-2122
α-helix22-232
β-strand30-3563
β-strand39-48103
β-strand51-5443
α-helix56-583
β-strand60-60A24
α-helix60B-60D3
β-strand60F-60G24
α-helix61-633
β-strand64-6853
β-strand7215
β-strand81-90103
β-strand9516
β-strand10016
β-strand104-10853
α-helix120-1212
β-strand12212
α-helix123-1242
α-helix126-129C7
β-strand135-14062
β-strand15415
β-strand156-16382
α-helix1641
α-helix165-1695
α-helix175-1762
β-strand180-18342
β-strand18911
β-strand198-20252
β-strand207-21592
β-strand226-23052
α-helix232-2343
α-helix235-2428
Chain G: 5 helices, 17 β-strands
ElementResiduesLengthSheet
β-strand5-737
β-strand13-1647
β-strand33-3757
β-strand45-4738
α-helix48-514
β-strand59-6137
β-strand69-7138
β-strand81-8337
β-strand104-10637
β-strand128-13037
β-strand152-15437
β-strand176-17837
β-strand199-20137
β-strand20719
α-helix215-2228
α-helix224-2263
β-strand22717
α-helix243-2453
β-strand247110
β-strand24819
β-strand255110
α-helix256-2583

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Thrombin alpha-chainAprotein36Homo sapiensP00734 (AlphaFold model)
Thrombin beta-chainBprotein259Homo sapiensP00734 (AlphaFold model)
Platelet glycoprotein Ib alpha chainGprotein290Homo sapiensP07359 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>3PMH_1 THROMBIN ALPHA-CHAIN (chains A)
TFGSGEADCGLRPLFEKKSLEDKTERELLESYIDGR
Sequence of entity 2 (B), FASTA
>3PMH_2 THROMBIN BETA-CHAIN (chains B)
IVEGSDAEIGMSPWQVMLFRKSPQELLCGASLISDRWVLTAAHCLLYPPWDKNFTENDLL
VRIGKHSRTRYERNIEKISMLEKIYIHPRYNWRENLDRDIALMKLKKPVAFSDYIHPVCL
PDRETAASLLQAGYKGRVTGWGNLKETWTANVGKGQPSVLQVVNLPIVERPVCKDSTRIR
ITDNMFCAGYKPDEGKRGDACEGDSGGPFVMKSPFNNRWYQMGIVSWGEGCDRDGKYGFY
THVFRLKKWIQKVIDQFGE
Sequence of entity 3 (G), FASTA
>3PMH_3 Platelet glycoprotein Ib alpha chain (chains G)
HPICEVSKVASHLEVNCDKRNLTALPPDLPKDTTILHLSENLLYTFSLATLMPYTRLTQL
NLDRAELTKLQVDGTLPVLGTLDLSHNQLQSLPLLGQTLPALTVLDVSFNRLTSLPLGAL
RGLGELQELYLKGNELKTLPPGLLTPTPKLEKLSLANNNLTELPAGLLNGLENLDTLLLQ
ENSLYTIPKGFFGSHLLPFAFLHGNPWLCNCEILYFRRWLQDNAENVYVWKQGVDVKAMT
SNVASVQCDNSDKFPVYKYPGKGCPTLGDEGDTDLYDYYPEEDTEGDKVR

Ligands and cofactors

IDNameFormulaCopies
NAG2-acetamido-2-deoxy-beta-D-glucopyranoseC8 H15 N O61
0G7D-phenylalanyl-N-[(3S)-6-carbamimidamido-1-chloro-2-oxohexan-3-yl]-L-prolinamideC21 H31 Cl N6 O31

Primary citation

Binding of alpha-thrombin to surface-anchored platelet glycoprotein Ib(alpha) sulfotyrosines through a two-site mechanism involving exosite I. Zarpellon, A., Celikel, R., Roberts, J.R. et al. Proc Natl Acad Sci U S A (2011) 108:8628-8633. DOI 10.1073/pnas.1017042108 · PubMed

Other PDB entries of the same protein (UniProt P00734 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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