Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

X: Acanthaporin

X: Protein 2b

X: Aminoglycoside adenyltransferase AadA C-terminal domain

X: IcmW

X: Peptidase inhibitors family I29

X: CRISPR-associated endonuclease Cpf1 PI (PAM-interacting) domain

X: Cas5fv helical domain

X: ICP4 DNA-binding domain

X: Enhancer of polycomb-like protein 1 (Epl1) N-terminal domain

X: RDS3 complex subunit 10

X: Oxalate biosynthetic component 1 (Obc1) cap domain

X: Glycosyl transferase TarS linker domain

X: Immunomodulating metalloprotease IMPa helical domain

X: Mimivirus sulfhydryl oxidase R596 ORFan domain

X: SOCS box-like

X: Dcp2 box A domain

X: BH2638-like

X: Hypothetical protein YqbG-like

X: EF2947-like

X: Monopolin complex subunit MAM1

X: Csd1/Csd2 helical domain

X: RbcX-like

X: Melanoregulin

X: SP0561-like

X: Phage replication organizer domain

X: DdrO C-terminal domain

X: beta-catenin-interacting protein ICAT

X: Eukaryotic initiation factor 4f subunit eIF4g, eIF4e-binding domain

X: HAND domain of the nucleosome remodeling ATPase ISWI

X: KRAB domain (Kruppel-associated box, Pfam 01352)

X: N-terminal, cytoplasmic domain of anti-sigma factors

X: Replisome organizer (g39p helicase loader/inhibitor protein)

X: TAF(II)230 TBP-binding fragment

X: CRIB domain

X: Nuclear receptor coactivator CBP/p300 ibid domain

X: Nuclear receptor coactivator ACTR

X: Triger factor/SurA peptide-binding domain-like

X: BSD domain

X: Toxin A (TcdA) helical domain

X: Enzyme I of the PEP:sugar phosphotransferase system HPr-binding (sub)domain

X: Hepatitis B viral capsid (hbcag)

X: Pre-protein crosslinking domain of SecA

X: Tetrahydrodipicolinate-N-succinlytransferase, N-terminal 3-helical domain

X: VHP, Villin headpiece domain

X: Chemotaxis receptor methyltransferase CheR, N-terminal domain

X: Chemosensory protein Csp2

X: a domain of protein A6KY75

X: Kinetoplastid membrane protein 11

X: Domains of FliG

X: Type III secretion system domain-like

X: Quinohemoprotein amine dehydrogenase C chain

X: Ribosomal protein L19 (L19e) N-terminal domain

X: HMG-box

X: C-terminus of TFIIE alpha

X: PABP domain-like

X: Zinc transporter ZIP4 N-terminal domain

X: SPP1 phage GP23.1

X: KorB C-terminal domain-like

X: Middle domain in transcriptional anti-activator ExsD

X: Negative regulator RsdA N-terminal domain

X: RNA polymerase sigma factor rpoD N-terminal domain

X: Myosin-binding motif (m-domain) C-terminal subdomain

X: Mitochondrial 54S ribosomal protein L2

X: Small, acid-soluble spore protein C

X: HTH

X: C-terminal domain of Malic enzyme

X: Twin-arginine translocation pathway signal

X: S15/NS1 RNA-binding domain

X: Glycogen debranching enzyme (GDE) insertion domain

X: Dimerization domain of Sgt2

X: RPB6/omega subunit-like

X: helical bundle in Bacillus stearothermophilus-like DNA polymerase I

X: inserted helical bundle subdomain in T7 RNA polymerase

X: Eukaryotic translation initiation factor 3 subunit 1

X: Staphylococcal peroxidase inhibitor

X: Catalytic cysteine domain in ubiquitin-activating enzyme

X: HHA-like

X: Methane monooxygenase hydrolase gamma subunit-like

X: T4 Bacteriophage Helicase Uvsw.1

X: Helical bundle domain in YebC-like proteins

X: Alpha-helical domain in eukaryotic DNA topoisomerase I, N-terminal DNA-binding fragment

X: Superantigen MAM C-terminal domain

X: Emsy N terminal (ENT) domain-like

X: RPA2825-like

X: TerB-like

X: C-terminal domain of Hypothetical protein MPN330-like

X: SHQ1 C-terminal domain-like

X: C-terminal helical domain in Atu1540-like proteins

X: BART

X: Asl3597

X: Helical box domain of E3 ubiquitin-protein ligase HECW1

X: HopAB effectors Pto-binding domain-related

X: RNA polymerase-associated protein Gp33

X: Intramolecular chaperone domain in virus tail spike protein

X: Golgi phosphoprotein 3

X: Uncharacterized protein BVU_3817 C-terminal domain

X: Rap1 C-terminal domain

X: N-terminal domain in putative methyltransferase PG_1098

X: N-terminal domain in MogR repressor

X: Thymine dioxygenase JBP1 DNA-binding domain-like

X: RecQL4 helicase N-terminal domain

X: Uncharacterized protein encoded by cryptic prophage

X: Peroxisomal biogenesis factor 14 N-terminal domain

X: Pfam family PF09836 C-terminal domain

X: Pfam family PF09836 N-terminal domain

X: HSDR subunit helical domain

X: beta-herpesvirus envelope glycoprotein L (gL) N-terminal domain

X: Uncharacterized protein AF_2093 N-terminal domain

X: T4 RNA ligase

X: Dimerization domain in caprin-1 and PAN3

X: C-terminal domain of Lmo2642 protein

X: Iron-regulated surface determinant protein H linker domain

X: Helical domain in PB2

X: Uncharacterized protein aq_1974

X: 60S acidic ribosomal protein P1/P2

X: Cell-shape determining Csd6 N-terminal dimerization domain

X: Protelomerase stirrup domain

X: DNA repair protein RAD4 beta-hairpin domain

X: DUF3349

X: Virus VPg protein

X: Macrodomain Ter protein MatP

X: Nucleophosmin DNA-binding domain

X: HhH/H2TH

X: DNA polymerase III finger domain

X: Insertion domain of glycoside hydrolase family 149 (GH149)

X: Insertion region of FTHFS domain

X: Antitermination protein Q helical domain

X: Nitrogenase gamma subunit N-terminal domain

X: N-terminal helical domain in Poxvirus poly(A) polymerase catalytic subunit

X: lambda integrase-N-like

X: uncharacterized protein BT_1490 C-terminal domain

X: Protelomerase muzzle domain

X: Helical bundle domain in elongation factor 3A

X: Helical insertion domain in magnesium chelatase catalytic subunit

X: Nogo-66

X: Filamentous archaeal viruses coat proteins

X: N-terminal domain of N-acetylglucosaminyltransferase-V

X: Protein C'

X: Helical domain in 5'->3' exoribonucleases

X: DNA-binding domain in UvrA

X: MRG domain

X: PWI domain-like

X: L-aspartase middle domain-like

X: L-aspartase N-terminal domain-like

X: L-aspartase C-terminal domain-like

X: Protein arginine N-methyltransferase 3 helical domain

X: RuvA-C

X: AvrRxo1-ORF2

X: DnaD domain

X: Primosome protein DnaB middle domain

X: PG0816-like

X: Capsid assembly protein VP3

X: Hypothetical protein MTH393

X: Repressor activator protein 1 (RAP1) helical bundle domain

X: YAP1 redox domain

X: Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex

X: Alpha helical domain of ribonucleotide reductases

X: Fertilization protein

X: LEM/SAP HeH motif-like

X: attachment domain of fiber adhesin

X: DNA-binding domain of EIN3-like

X: DNA polymerase III theta subunit-like

X: inserted helical subdomain in bacterial RNA-polymerase beta-prime subunit

X: Porin B (PorB)

X: Bromodomain-containing protein 4 ET domain

X: PHAX RNA-binding domain

X: SP1917-like

X: MJ1004, C-terminal domain

X: MshE c-di-GMP-binding domain

X: tRNA delta(2)-isopentenylpyrophosphate transferase helical insertion domain

X: Potassium-transporting ATPase KdpC subunit

X: EF-hand

X: Jann4075-like

X: PBS linker domain of phycobilisome linker polypeptide

X: C-terminal helical domain in tRNA modifying enzyme GidA

X: Calcium binding protein 40 (CBP40) N-terminal domain

X: Neutral trehalase N-terminal domain

X: Uteroglobin-like

X: Uncharacterized protein CD1104.2

X: Annexin

X: Guanido kinase-N

X: Repressor of bacterial conjugation FinO

X: DnaB helicase N-terminal domain-related

X: Transcription factor STAT-4 N-domain

X: N-terminal domain of segregation and condensation protein A, ScpA

X: YgfY-like (DUP399, Pfam03937)

X: Orange carotenoid protein, N-terminal domain

X: AhpD-like

X: KaiA/RbsU domain-like

X: YoaC-like

X: WY-domain in RXLR effectors

X: ATR1 N-terminal domain

X: Serum amyloid A-1 protein

X: Methionine synthase domain-like

X: Protein of Unknown Function YPO2564

X: Hypothetical protein

X: Serine acetyltransferase N-terminal domain

X: Nucleoside phosphorylase/phosphoribosyltransferase-N

X: yeast protein YOR252W

X: HP0721

X: ERP29 C domain-like

X: C-terminal alpha domain in Alpha-Glycerophosphate Oxidase

X: Uncharacterized protein CV_1783

X: D-ornithine aminomutase S component-related

X: Non-structural protein 3

X: Retroviral matrix proteins

X: T4 endonuclease V

X: Insertion subdomain in DsbA-like

X: Insert all-alpha domain in prim-pol

X: Calcium-binding protein

X: Archaeal protein SSO6904

X: Saposin-like

X: Cytoplasmic metal binding domain of VIT1

X: Globin-like

H: Globin-like

T: Globin-like

F: Phycobilisome

F: Bac_globin

F: MPAB_Lcp_cat

F: Rsbr_N

F: Globin

Representatives:

e1a6mA1[A:1-151] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

MYOGLOBIN ; ligands: HEM,OXY,SO4 ; X-RAY DIFFRACTION 1.0Å

e1h97A1[A:1-147] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Globin-3 ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 1.170Å

e1tu9A1[A:2-132] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

hypothetical protein PA3967 ; ligands: EDO,HEM,PPI ; X-RAY DIFFRACTION 1.2Å

e3d1kA1[A:1-142] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ALPHA-1 ; ligands: ACE,CMO,HEM ; X-RAY DIFFRACTION 1.25Å

e3d1kB1[B:1-146] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT BETA-1/2 ; ligands: HEM ; X-RAY DIFFRACTION 1.25Å

e1ecdA1[A:1-136] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ERYTHROCRUORIN (AQUO MET) ; ligands: HEM ; X-RAY DIFFRACTION 1.4Å

e1jl7A1[A:1-147] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MONOMER HEMOGLOBIN COMPONENT III ; ligands: CYN,HEM ; X-RAY DIFFRACTION 1.4Å

e1b0bA1[A:1-142] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

HEMOGLOBIN ; ligands: CYN,HEM ; X-RAY DIFFRACTION 1.43Å

e1kr7A1[A:0-109] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Neural globin ; ligands: ACT,HEM,OXY,SO4 ; X-RAY DIFFRACTION 1.5Å

e1q1fA1[A:3-150] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Neuroglobin ; ligands: HEM ; X-RAY DIFFRACTION 1.50Å

e1cg5A1[A:1-141] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (HEMOGLOBIN) ; ligands: HEM ; X-RAY DIFFRACTION 1.6Å

e1cg5B1[B:1-141] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (HEMOGLOBIN) ; ligands: HEM ; X-RAY DIFFRACTION 1.6Å

e1it2A1[A:1-146] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN ; ligands: HEM ; X-RAY DIFFRACTION 1.6Å

e1mbaA1[A:0-146] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

MYOGLOBIN ; ligands: HEM ; X-RAY DIFFRACTION 1.6Å

e2qfkA1[A:1-137] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Dehaloperoxidase A ; ligands: HEM,NH4,SO4 ; X-RAY DIFFRACTION 1.620Å

e2gdmA1[A:1-153] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

LEGHEMOGLOBIN (OXY) ; ligands: HEM,OXY ; X-RAY DIFFRACTION 1.7Å

e3gqrC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 2.4Å

e3gqrE1[E:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 2.4Å

e3gqrG1[G:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 2.4Å

e3hrwC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 2.80Å

e3a59C1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha-A ; ligands: HEM ; X-RAY DIFFRACTION 3.41Å

e3a59E1[E:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha-A ; ligands: HEM ; X-RAY DIFFRACTION 3.41Å

e3a59G1[G:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha-A ; ligands: HEM ; X-RAY DIFFRACTION 3.41Å

e3hf4A1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha-1/2 ; ligands: HEM ; X-RAY DIFFRACTION 2.7Å

e3hf4E1[E:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha-1/2 ; ligands: HEM ; X-RAY DIFFRACTION 2.7Å

e3hyuA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM,PO4 ; X-RAY DIFFRACTION 1.670Å

e3a59D1[D:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 3.41Å

e3a59F1[F:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 3.41Å

e3a59H1[H:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 3.41Å

e3eu1A1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha-1/2 ; ligands: HEM ; X-RAY DIFFRACTION 3.0Å

e3eu1C1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha-1/2 ; ligands: HEM ; X-RAY DIFFRACTION 3.0Å

e3eokB1[B:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 2.1Å

e3k8bB1[B:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN BETA CHAIN ; ligands: HEM ; X-RAY DIFFRACTION 2.3Å

e3k8bD1[D:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN BETA CHAIN ; ligands: HEM ; X-RAY DIFFRACTION 2.3Å

e3dhrD1[D:2-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 2.00Å

e3dhrF1[F:2-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 2.00Å

e3dhrH1[H:2-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 2.00Å

e3ovuC1[C:2-140] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 2.830Å

e3odqA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM ; X-RAY DIFFRACTION 3.1Å

e3odqC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM ; X-RAY DIFFRACTION 3.1Å

e3qjbA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.8Å

e3qjcA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 2.0Å

e3qjdA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM ; X-RAY DIFFRACTION 1.56Å

e3qjdC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 1.56Å

e3qjeA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 1.8Å

e3qjeC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 1.8Å

e3r5iA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: 3R5,HEM,OXY ; X-RAY DIFFRACTION 2.2Å

e3r5iC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: 3R5,HEM,OXY ; X-RAY DIFFRACTION 2.2Å

e3p5qA1[A:1-139] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM,MBN ; X-RAY DIFFRACTION 2.0Å

e3s65A1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.8Å

e3s65C1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.8Å

e3s66A1[A:1-139] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.4Å

e3oo4A1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ALPHA ; ligands: NO2,NTE ; X-RAY DIFFRACTION 1.9Å

e3oo5A1[A:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ALPHA ; ligands: NO2,NTE ; X-RAY DIFFRACTION 2.1Å

e3szkD1[D:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM ; X-RAY DIFFRACTION 3.01Å

e3szkA1[A:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM ; X-RAY DIFFRACTION 3.01Å

e3pi8C1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 2.2Å

e3pi9A1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 2.9Å

e3pi9C1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 2.9Å

e3piaA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 2.1Å

e3piaC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 2.1Å

e3mjpB1[B:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM,OXY ; X-RAY DIFFRACTION 2.75Å

e3mjpD1[D:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 2.75Å

e3qqqB1[B:9-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Non-symbiotic hemoglobin ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 1.84Å

e3qqrB1[B:9-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NON-LEGUME HEMOGLOBIN ; ligands: DIO,HEM ; X-RAY DIFFRACTION 2.16Å

e3lqdC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM,OXY ; X-RAY DIFFRACTION 2.8Å

e3pelA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM ; X-RAY DIFFRACTION 1.9Å

e3at6B1[B:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-GLOBIN ; ligands: HEM ; X-RAY DIFFRACTION 2.35Å

e3s1iB1[B:2-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin-like flavoprotein ; ligands: HEM,OXY,SO4 ; X-RAY DIFFRACTION 1.770Å

e3s1iC1[C:2-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin-like flavoprotein ; ligands: HEM,OXY,SO4 ; X-RAY DIFFRACTION 1.770Å

e3s1jA1[A:2-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin-like flavoprotein ; ligands: ACT,HEM ; X-RAY DIFFRACTION 1.800Å

e3s1jB1[B:2-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin-like flavoprotein ; ligands: ACT,HEM,SO4 ; X-RAY DIFFRACTION 1.800Å

e3s1jC1[C:2-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin-like flavoprotein ; ligands: ACT,HEM,SO4 ; X-RAY DIFFRACTION 1.800Å

e3mjuB1[B:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 3.5Å

e4h2lA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Alpha-globin ; ligands: HEM ; X-RAY DIFFRACTION 1.779Å

e3ubcG1[G:2-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin-like flavoprotein ; ligands: HEM,OXY ; X-RAY DIFFRACTION 1.650Å

e3ubvD1[D:2-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin-like flavoprotein ; ligands: HEM,OXY ; X-RAY DIFFRACTION 3.200Å

e3ubcD1[D:2-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin-like flavoprotein ; ligands: HEM,OXY ; X-RAY DIFFRACTION 1.650Å

e3ubvG1[G:2-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin-like flavoprotein ; ligands: HEM,OXY ; X-RAY DIFFRACTION 3.200Å

e3ubvA1[A:2-132] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin-like flavoprotein ; ligands: HEM,OXY ; X-RAY DIFFRACTION 3.200Å

e3vreC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 2.2Å

e3vrfA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.55Å

e3vrgA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 1.50Å

e4iroC1[C:0-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ALPHA ; ligands: HEM ; X-RAY DIFFRACTION 2.2Å

e4g51C1[C:0-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM,NO ; X-RAY DIFFRACTION 2.270Å

e4f4oJ1[J:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM,OXY ; X-RAY DIFFRACTION 2.9Å

e4f4oG1[G:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM,OXY ; X-RAY DIFFRACTION 2.9Å

e4f4oD1[D:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM,OXY ; X-RAY DIFFRACTION 2.9Å

e1c7dA2[A:144-284] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (DEOXYHEMOGLOBIN (ALPHA CHAIN)) ; ligands: HEM ; X-RAY DIFFRACTION 1.80Å

e1o1mA1[A:145-285] Image Pymol Jmol Links: PDB, SCOP, CATH DOI

Hemoglobin Alpha chain ; ligands: HEM ; X-RAY DIFFRACTION 1.850Å

e1abwA2[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN-BASED BLOOD SUBSTITUTE ; ligands: HEM,LEU,MET ; X-RAY DIFFRACTION 2.0Å

e1abyA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN ; ligands: CYN,HEM ; X-RAY DIFFRACTION 2.6Å

e1c7cA2[A:143-283] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (DEOXYHEMOGLOBIN (ALPHA CHAIN)) ; ligands: HEM ; X-RAY DIFFRACTION 1.80Å

e1o1pA2[A:143-283] Image Pymol Jmol Links: PDB, SCOP, CATH DOI

Hemoglobin Alpha chain ; ligands: HEM ; X-RAY DIFFRACTION 1.800Å

e1o1jA2[A:143-283] Image Pymol Jmol Links: PDB, SCOP, CATH DOI

Hemoglobin Alpha chain ; ligands: HEM ; X-RAY DIFFRACTION 1.900Å

e4fc3A1[A:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 2.260Å

e3mkbA1[A:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 1.9Å

e3mvcA1[A:195-355] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Globin protein 6 ; ligands: HEM,NO3,PR ; X-RAY DIFFRACTION 1.4Å

e3ag0A1[A:18-175] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYTOGLOBIN ; ligands: CMO,HEM ; X-RAY DIFFRACTION 2.6Å

e4hrtA1[A:0-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLOBIN-2 A CHAIN ; ligands: HEM ; X-RAY DIFFRACTION 1.46Å

e4esaA1[A:0-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin alpha chain ; ligands: CMO,GOL,HEM ; X-RAY DIFFRACTION 1.45Å

e4b4yA1[A:6-154] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NEUROGLOBIN ; ligands: HEM,OXY ; X-RAY DIFFRACTION 2.30Å

e2gnvA1[A:8-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Non-symbiotic hemoglobin 1 ; ligands: DIO,HEM ; X-RAY DIFFRACTION 2.000Å

e2dc3A1[A:17-188] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYTOGLOBIN ; ligands: ACY,HEM ; X-RAY DIFFRACTION 1.68Å

e4hrrA1[A:0-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLOBIN-2 A CHAIN ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.25Å

e3zhwA1[A:6-159] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NON-SYMBIOTIC HEMOGLOBIN 1 ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 2.22Å

e4b3wA1[A:18-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYTOGLOBIN ; ligands: CYN,FC6,HEM ; X-RAY DIFFRACTION 2.8Å

e2gnwA1[A:1-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Non-symbiotic hemoglobin 1 ; ligands: HEM ; X-RAY DIFFRACTION 1.844Å

e2gnwB1[B:1-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Non-symbiotic hemoglobin 1 ; ligands: HEM ; X-RAY DIFFRACTION 1.844Å

e2dc3B1[B:4-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYTOGLOBIN ; ligands: ACY,HEM ; X-RAY DIFFRACTION 1.68Å

e3mvcB1[B:195-355] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Globin protein 6 ; ligands: HEM,NO3,PR ; X-RAY DIFFRACTION 1.4Å

e3mkbC1[C:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 1.9Å

e4esaC1[C:0-142] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin alpha chain ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.45Å

e4hrrG1[G:0-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLOBIN-2 A CHAIN ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.25Å

e4hrtE1[E:0-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLOBIN-2 A CHAIN ; ligands: HEM,PO4 ; X-RAY DIFFRACTION 1.46Å

e4hrtG1[G:0-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLOBIN-2 A CHAIN ; ligands: HEM ; X-RAY DIFFRACTION 1.46Å

e4hrtC1[C:0-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLOBIN-2 A CHAIN ; ligands: HEM ; X-RAY DIFFRACTION 1.46Å

e4hrrC1[C:0-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLOBIN-2 A CHAIN ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.25Å

e4hrrE1[E:0-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

GLOBIN-2 A CHAIN ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.25Å

e1hlmA1[A:0-156] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN (CYANO MET) ; ligands: CYN,HEM ; X-RAY DIFFRACTION

e4vhbA1[A:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (HEMOGLOBIN) ; ligands: HEM,SCN ; X-RAY DIFFRACTION 1.8Å

e1gvhA2[A:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOPROTEIN ; ligands: CL,FAD,HEM,NA ; X-RAY DIFFRACTION 2.19Å

e3mkbB1[B:1-136] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 1.9Å

e4g1bA1[A:1-145] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOGLOBIN ; ligands: ECN,FAD,HEM ; X-RAY DIFFRACTION 3.0Å

e2vhbA1[A:2-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN ; ligands: AZI,HEM ; X-RAY DIFFRACTION 1.76Å

e1vhbA1[A:2-145] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN ; ligands: HEM ; X-RAY DIFFRACTION 1.83Å

e1vhbB1[B:2-145] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN ; ligands: HEM ; X-RAY DIFFRACTION 1.83Å

e2vhbB1[B:2-145] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN ; ligands: AZI,HEM ; X-RAY DIFFRACTION 1.76Å

e3vhbA1[A:2-145] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (HEMOGLOBIN) ; ligands: HEM,IMD ; X-RAY DIFFRACTION 2.1Å

e3vhbB1[B:2-145] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (HEMOGLOBIN) ; ligands: HEM,IMD ; X-RAY DIFFRACTION 2.1Å

e4vhbB1[B:2-145] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

PROTEIN (HEMOGLOBIN) ; ligands: HEM,SCN ; X-RAY DIFFRACTION 1.8Å

e1cqxB2[B:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOPROTEIN ; ligands: DGG,FAD,HEM,NA ; X-RAY DIFFRACTION 1.75Å

e3ozuA2[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOPROTEIN ; ligands: FAD,HEM,PO4,X89 ; X-RAY DIFFRACTION 2.0Å

e3ozvA2[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOGLOBIN ; ligands: DGG,ECN,FAD,HEM ; X-RAY DIFFRACTION 2.4Å

e3ozvB2[B:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOGLOBIN ; ligands: DGG,ECN,FAD,HEM ; X-RAY DIFFRACTION 2.4Å

e3ozwA2[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOGLOBIN ; ligands: DGG,FAD,HEM,KKK ; X-RAY DIFFRACTION 2.3Å

e3ozwB2[B:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOGLOBIN ; ligands: FAD,HEM,KKK ; X-RAY DIFFRACTION 2.3Å

e1gcvD1[D:1-136] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN ; ligands: HEM ; X-RAY DIFFRACTION 2.0Å

e3mkbD1[D:1-136] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 1.9Å

e3wcpA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 1.94Å

e3wcpC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 1.94Å

e4l7yA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: MH0 ; X-RAY DIFFRACTION 1.8Å

e4l7yC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: MH0 ; X-RAY DIFFRACTION 1.8Å

e2m6zA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEC ; SOLUTION NMR

e2m6zC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEC ; SOLUTION NMR

e4mqcA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: CMO,HEM ; X-RAY DIFFRACTION 2.200Å

e4mqgA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

HEMOGLOBIN SUBUNIT ALPHA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.68Å

e4mqiA1[A:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 1.920Å

e4mqjA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.800Å

e4mqjG1[G:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.800Å

e4mqjC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.800Å

e4mqjE1[E:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.800Å

e4mqkA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.920Å

e4mqkC1[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.920Å

e4mqkE1[E:1-138] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 1.920Å

e4mqkG1[G:1-140] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 1.920Å

e4mqhA1[A:1-139] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 2.500Å

e4ij2A1[A:1-139] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 4.240Å

e4ij2C1[C:1-139] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 4.240Å

e4mpmA1[A:3-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NEUROGLOBIN ; ligands: HEM ; X-RAY DIFFRACTION 1.74Å

e4mpmB1[B:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NEUROGLOBIN ; ligands: HEM ; X-RAY DIFFRACTION 1.74Å

e3wr1B1[B:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH

Hemoglobin subunit beta ; ligands: HEM ; X-RAY DIFFRACTION 3.5Å

e3zhwB2[B:8-160] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

NON-SYMBIOTIC HEMOGLOBIN 1 ; ligands: HEM,SO4 ; X-RAY DIFFRACTION 2.22Å

e3w4uE2[E:1-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ZETA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.95Å

e3w4uC2[C:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HEMOGLOBIN SUBUNIT ZETA ; ligands: CMO,HEM ; X-RAY DIFFRACTION 1.95Å

e3s48C2[C:2-139] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Hemoglobin subunit alpha ; ligands: HEM ; X-RAY DIFFRACTION 3.05Å

e4b3wB2[B:18-171] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYTOGLOBIN ; ligands: ACT,CYN,FC6,HEM ; X-RAY DIFFRACTION 2.8Å

e4g1vA4[A:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Flavohemoglobin ; ligands: FAD,HEM,K,NO2 ; X-RAY DIFFRACTION 2.098Å

e4g1bD4[D:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOGLOBIN ; ligands: ECN,FAD,HEM ; X-RAY DIFFRACTION 3.0Å

e4g1bB4[B:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOGLOBIN ; ligands: ECN,FAD,HEM ; X-RAY DIFFRACTION 3.0Å

e4g1bC4[C:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

FLAVOHEMOGLOBIN ; ligands: ECN,FAD,HEM ; X-RAY DIFFRACTION 3.0Å

e4n7nA1[A:1-141] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI