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X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative


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Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

alpha bundlesalpha-helix bundles with mainly parallel helices

alpha superhelicesrepeating alpha-helix hairpins form a superhelix

alpha duplicates or obligate multimersalpha duplicates or monomers associate together to form a compact domain

alpha complex topologyalpha domain with complex and unique topology that cannot be described as array or bundle or superhelix

beta barrelssingle beta-sheet folded upon itself to form a barrel

beta meanderssingle beta-sheet with mainly meander topology

beta sandwichestwo beta-sheets stacked together to form a sandwich

beta duplicates or obligate multimersbeta duplicates or monomers associate together to form a compact domain

beta complex topologybeta domains with complex and unique topology that cannot be described as barrel or sandwich or meander

a+b two layersone alpha-helix layer and one beta-sheet layer

a+b three layersone mainly antiparallel beta-sheet layer sandwiched between two alpha-helix layers

X: Class II aaRS and biotin synthetases
H: Class II aaRS and biotin synthetases
T: Class II aaRS and biotin synthetases
F: tRNA-synt_His

PF13393 CL0040

Representatives:

e3od1A1[A:3-325] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

ATP PHOSPHORIBOSYLTRANSFERASE REGULATORY SUBUNIT ; ligands: BME,PEG ; X-RAY DIFFRACTION 1.97Å

e5m8hA1[A:1-322] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: CL,MPD,SR ; X-RAY DIFFRACTION 2.340Å

e1h4vB1[B:2-325] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: SO4 ; X-RAY DIFFRACTION 2.4Å

e1wu7B1[B:5-329] Image Pymol Jmol Links: PDB, SCOP, CATH

HISTIDYL-TRNA SYNTHETASE ; X-RAY DIFFRACTION 2.4Å

e1usyB1[B:1-275] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP PHOSPHORIBOSYLTRANSFERASE REGULATORY SUBUNIT ; ligands: HIS ; X-RAY DIFFRACTION 2.600Å

e1usyD1[D:2-275] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP PHOSPHORIBOSYLTRANSFERASE REGULATORY SUBUNIT ; ligands: HIS ; X-RAY DIFFRACTION 2.600Å

e1usyC1[C:1-275] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP PHOSPHORIBOSYLTRANSFERASE REGULATORY SUBUNIT ; ligands: HIS ; X-RAY DIFFRACTION 2.600Å

e1z7nD1[D:6-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: PO4 ; X-RAY DIFFRACTION 3.25Å

e1z7nA1[A:6-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; X-RAY DIFFRACTION 3.25Å

e1z7mB1[B:6-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: PO4 ; X-RAY DIFFRACTION 2.9Å

e1z7nC1[C:6-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; X-RAY DIFFRACTION 3.25Å

e1z7nB1[B:6-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: PO4 ; X-RAY DIFFRACTION 3.25Å

e1z7mD1[D:6-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: PO4,WO4 ; X-RAY DIFFRACTION 2.9Å

e1z7mC1[C:6-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: WO4 ; X-RAY DIFFRACTION 2.9Å

e3hriA1[A:47-379] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; X-RAY DIFFRACTION 2.700Å

e3hrkA1[A:49-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: CL,HAM ; X-RAY DIFFRACTION 3.050Å

e3netA1[A:6-366] Image Pymol Jmol Links: PDB, SCOP, CATH

Histidyl-tRNA synthetase ; ligands: ACT ; X-RAY DIFFRACTION 2.7Å

e3racA1[A:15-365] Image Pymol Jmol Links: PDB, SCOP, CATH

Histidine-tRNA ligase ; ligands: ACY,GOL,LMR,NA ; X-RAY DIFFRACTION 2.3Å

e4e51A1[A:9-329] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase ; ligands: HIS ; X-RAY DIFFRACTION 2.650Å

e3hrkB1[B:49-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: CL,HAM ; X-RAY DIFFRACTION 3.050Å

e3hriC1[C:47-379] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; X-RAY DIFFRACTION 2.700Å

e3hriE1[E:47-379] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; X-RAY DIFFRACTION 2.700Å

e3od1B1[B:1-334] Image Pymol Jmol Links: PDB, SCOP, CATH

ATP PHOSPHORIBOSYLTRANSFERASE REGULATORY SUBUNIT ; X-RAY DIFFRACTION 1.97Å

e2el9C1[C:4-180,C:226-325] Image Pymol Jmol Links: PDB, SCOP, CATH

HISTIDYL-TRNA SYNTHETASE ; ligands: HSS ; X-RAY DIFFRACTION 2.7Å

e1kmnB1[B:4-169,B:228-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: ATP,HSO ; X-RAY DIFFRACTION 2.6Å

e1kmnA1[A:4-185,A:228-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: ATP,HSO ; X-RAY DIFFRACTION 2.6Å

e1httA1[A:4-177,A:229-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

HISTIDYL-TRNA SYNTHETASE ; ligands: AMP,HIS ; X-RAY DIFFRACTION 2.6Å

e2el9A1[A:4-180,A:225-325] Image Pymol Jmol Links: PDB, SCOP, CATH

HISTIDYL-TRNA SYNTHETASE ; ligands: HSS ; X-RAY DIFFRACTION 2.7Å

e2el9D1[D:4-187,D:224-325] Image Pymol Jmol Links: PDB, SCOP, CATH

HISTIDYL-TRNA SYNTHETASE ; ligands: HSS ; X-RAY DIFFRACTION 2.7Å

e1adjB1[B:2-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HIS,SO4 ; X-RAY DIFFRACTION 2.7Å

e1kmmA1[A:4-188,A:224-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HAM ; X-RAY DIFFRACTION 2.6Å

e1adyA1[A:2-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HAM,SO4 ; X-RAY DIFFRACTION 2.8Å

e1httC1[C:4-177,C:229-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

HISTIDYL-TRNA SYNTHETASE ; ligands: AMP,HIS ; X-RAY DIFFRACTION 2.6Å

e1kmmC1[C:4-188,C:223-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HAM ; X-RAY DIFFRACTION 2.6Å

e1adyC1[C:2-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HAM,SO4 ; X-RAY DIFFRACTION 2.8Å

e1adjA1[A:2-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HIS,SO4 ; X-RAY DIFFRACTION 2.7Å

e1adyD1[D:2-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HAM,SO4 ; X-RAY DIFFRACTION 2.8Å

e1adjC1[C:2-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HIS,SO4 ; X-RAY DIFFRACTION 2.7Å

e2el9B1[B:4-178,B:224-325] Image Pymol Jmol Links: PDB, SCOP, CATH

HISTIDYL-TRNA SYNTHETASE ; ligands: HSS ; X-RAY DIFFRACTION 2.7Å

e1adjD1[D:2-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HIS,SO4 ; X-RAY DIFFRACTION 2.7Å

e1kmnC1[C:4-188,C:223-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: ATP,HSO ; X-RAY DIFFRACTION 2.6Å

e1adyB1[B:2-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HAM,SO4 ; X-RAY DIFFRACTION 2.8Å

e4g84A1[A:55-396] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDINE--TRNA LIGASE, CYTOPLASMIC ; ligands: IMD ; X-RAY DIFFRACTION 2.4Å

e4g84B3[B:43-394] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDINE--TRNA LIGASE, CYTOPLASMIC ; ligands: IMD ; X-RAY DIFFRACTION 2.4Å

e3lc0A6[A:47-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: HIS ; X-RAY DIFFRACTION 1.80Å

e1qe0B4[B:1-171,B:231-324] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase ; X-RAY DIFFRACTION 2.7Å

e1kmnD4[D:2-169,D:229-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: ATP,HSO ; X-RAY DIFFRACTION 2.6Å

e1kmmB4[B:2-169,B:229-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HAM ; X-RAY DIFFRACTION 2.6Å

e1kmmD4[D:4-169,D:229-323] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDYL-TRNA SYNTHETASE ; ligands: HAM ; X-RAY DIFFRACTION 2.6Å

e1httD4[D:4-169,D:230-324] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

HISTIDYL-TRNA SYNTHETASE ; ligands: AMP,HIS ; X-RAY DIFFRACTION 2.6Å

e1httB4[B:4-169,B:230-324] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed,

HISTIDYL-TRNA SYNTHETASE ; ligands: AMP,HIS ; X-RAY DIFFRACTION 2.6Å

e3hriD3[D:47-362] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; X-RAY DIFFRACTION 2.700Å

e3hriF3[F:47-234,F:269-379] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; X-RAY DIFFRACTION 2.700Å

e4g85B3[B:54-404] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDINE-TRNA LIGASE, CYTOPLASMIC ; X-RAY DIFFRACTION 3.11Å

e4g85A3[A:51-407] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

HISTIDINE-TRNA LIGASE, CYTOPLASMIC ; X-RAY DIFFRACTION 3.11Å

e3hriB4[B:47-364] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; X-RAY DIFFRACTION 2.700Å

e4e51B1[B:8-331] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase ; ligands: HIS ; X-RAY DIFFRACTION 2.650Å

e3netB1[B:8-364] Image Pymol Jmol Links: PDB, SCOP, CATH

Histidyl-tRNA synthetase ; X-RAY DIFFRACTION 2.7Å

e4phcA2[A:53-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase, cytoplasmic ; ligands: GOL,HIS ; X-RAY DIFFRACTION 2.840Å

e4phcB2[B:53-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase, cytoplasmic ; ligands: GOL,HIS ; X-RAY DIFFRACTION 2.840Å

e4phcC2[C:53-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase, cytoplasmic ; ligands: GOL,HIS ; X-RAY DIFFRACTION 2.840Å

e4phcD2[D:53-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase, cytoplasmic ; ligands: GOL,HIS ; X-RAY DIFFRACTION 2.840Å

e1qe0A3[A:1-324] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase ; X-RAY DIFFRACTION 2.7Å

e4rdxA1[A:2-325] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase ; ligands: AMP,HIS ; X-RAY DIFFRACTION 2.55Å

e4yp0A1[A:47-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 5IQ,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.100Å

e4ypfA1[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4FS,DMS,HIS,SO4 ; X-RAY DIFFRACTION 2.200Å

e4yrcA2[A:47-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 0P6,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.100Å

e4yreA1[A:47-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4HR,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.250Å

e4yreB2[B:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4HR,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.250Å

e4yrgA1[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4HU,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.150Å

e4yriA1[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase, putative ; ligands: 4JH,DMS,EDO,GOL,HIS,SO4 ; X-RAY DIFFRACTION 2.000Å

e4yrjA2[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4JJ,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.300Å

e4yrkA1[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4JL,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.200Å

e4yrkB1[B:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4JL,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.200Å

e4yrlA2[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4JM,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.300Å

e4yrmA1[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 282,EDO,GOL,HIS,SO4 ; X-RAY DIFFRACTION 2.300Å

e4yrmB1[B:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 282,EDO,GOL,HIS,SO4 ; X-RAY DIFFRACTION 2.300Å

e4yrnA2[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4JN,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.200Å

e4yrnB2[B:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4JN,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.200Å

e4yroA1[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4JO,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.500Å

e4yrpA2[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: DMS,EDO,HIS,PZH,SO4 ; X-RAY DIFFRACTION 2.200Å

e4yrpB2[B:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: DMS,EDO,HIS,PZH,SO4 ; X-RAY DIFFRACTION 2.200Å

e4yrqA1[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4JQ,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.050Å

e4yrrA1[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 691,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.300Å

e4yrrB2[B:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 691,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.300Å

e4yrsA2[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 4JS,HIS ; X-RAY DIFFRACTION 2.750Å

e4yrtA2[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase ; ligands: 781,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.050Å

e4yrfA1[A:48-381] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidyl-tRNA synthetase, putative ; ligands: 4HS,DMS,EDO,HIS,SO4 ; X-RAY DIFFRACTION 2.200Å

e5e3iA2[A:3-182,A:224-327] Image Pymol Jmol Links: PDB, SCOP, CATH

Histidine--tRNA ligase ; ligands: ATP,HIS,MG ; X-RAY DIFFRACTION 2.200Å

e5e3iB1[B:4-186,B:221-327] Image Pymol Jmol Links: PDB, SCOP, CATH

Histidine--tRNA ligase ; ligands: ATP,HIS,MG ; X-RAY DIFFRACTION 2.200Å

e4x5oB2[B:54-218,B:294-403] Image Pymol Jmol Links: PDB, SCOP, CATH

Histidine--tRNA ligase, cytoplasmic ; X-RAY DIFFRACTION 2.8Å

e4x5oA1[A:54-404] Image Pymol Jmol Links: PDB, SCOP, CATH

Histidine--tRNA ligase, cytoplasmic ; X-RAY DIFFRACTION 2.8Å

e5w6mA2[A:54-407] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase, cytoplasmic ; X-RAY DIFFRACTION 3.696Å

e5w6mB2[B:54-218,B:294-403] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase, cytoplasmic ; X-RAY DIFFRACTION 3.696Å

e6fttA2[A:0-322] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: CL,MG ; X-RAY DIFFRACTION 2.290Å

e6fu2A2[A:1-322] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

ATP phosphoribosyltransferase regulatory subunit ; X-RAY DIFFRACTION 2.710Å

e6fu2B2[B:1-322] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: TRS ; X-RAY DIFFRACTION 2.710Å

e6fu7A2[A:1-322] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

ATP phosphoribosyltransferase regulatory subunit ; X-RAY DIFFRACTION 2.310Å

e6fu7B2[B:1-322] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: CL,MG ; X-RAY DIFFRACTION 2.310Å

e6fuaB1[B:1-322] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: CL ; X-RAY DIFFRACTION 2.800Å

e6fttC1[C:0-322] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: CL,MG ; X-RAY DIFFRACTION 2.290Å

e6fttB1[B:0-322] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: CL,MG ; X-RAY DIFFRACTION 2.290Å

e6fttD2[D:0-322] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: CL,MG ; X-RAY DIFFRACTION 2.290Å

e6fuaA2[A:0-322] Image Pymol Jmol Links: PDB, SCOP, CATHDOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: CL ; X-RAY DIFFRACTION 2.800Å

e6nhiA1[A:0-358] Image Pymol Jmol Links: PDB, SCOP, CATH

Histidine--tRNA ligase ; X-RAY DIFFRACTION 2.100Å

e6r02A2[A:0-322] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: HIS ; X-RAY DIFFRACTION 2.650Å

e6r02B1[B:0-322] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: HIS ; X-RAY DIFFRACTION 2.650Å

e6r02C1[C:0-322] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: HIS ; X-RAY DIFFRACTION 2.650Å

e6r02D1[D:0-322] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: HIS ; X-RAY DIFFRACTION 2.650Å

e6o76B1[B:47-407] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase, cytoplasmic ; ligands: CL ; X-RAY DIFFRACTION 2.787Å

e6o76A2[A:54-404] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Histidine--tRNA ligase, cytoplasmic ; ligands: CL ; X-RAY DIFFRACTION 2.787Å

e7z6rA1[A:1-322] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; X-RAY DIFFRACTION 2.550Å

e7z6rB2[B:1-322] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; X-RAY DIFFRACTION 2.550Å

e1wu7A1[A:3-329] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

HISTIDYL-TRNA SYNTHETASE ; X-RAY DIFFRACTION 2.4Å

e1usyA1[A:1-275] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP PHOSPHORIBOSYLTRANSFERASE REGULATORY SUBUNIT ; X-RAY DIFFRACTION 2.600Å

e1z7mA1[A:6-323] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

ATP phosphoribosyltransferase regulatory subunit ; ligands: WO4 ; X-RAY DIFFRACTION 2.9Å

F: Unmapped domains

Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.

a+b four layerstwo beta-sheet layers sandwiched between two alpha-helix layers

a+b complex topologyalpha and beta domain with complex and unique topology that cannot be described in layers

a+b duplicates or obligate multimersalpha and beta duplicates or monomers associated together to form a compact domain

a/b barrelsrepeating beta-alpha units form a barrel

a/b three-layered sandwichesrepeating beta-alpha units form a sandwich with a mainly parallel beta-sheet layer stacked between two alpha-helix layers

mixed a+b and a/balpha and beta domain consists of both a+b and a/b regions

few secondary structure elementsstabilized by cofactors or disulfides

extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes