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4E4V

The crystal structure of the dimeric human importin alpha 1 at 2.5 angstrom resolution.

Functional Information from GO Data
ChainGOidnamespacecontents
A0005737cellular_componentcytoplasm
A0006606biological_processprotein import into nucleus
A0061608molecular_functionnuclear import signal receptor activity
B0005737cellular_componentcytoplasm
B0006606biological_processprotein import into nucleus
B0061608molecular_functionnuclear import signal receptor activity
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE GOL A 601
ChainResidue
AARG101
ALYS102
ASER105
BTRP399
BASP442

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE GOL A 602
ChainResidue
AILE116
BHIS376
BHOH724
BHOH763

site_idAC3
Number of Residues5
DetailsBINDING SITE FOR RESIDUE GOL A 603
ChainResidue
APRO174
AHIS175
AALA176
AHIS177
BGLU480

site_idAC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE GOL A 604
ChainResidue
AASP217
AMET218
AARG258
AHIS262

site_idAC5
Number of Residues2
DetailsBINDING SITE FOR RESIDUE GOL A 605
ChainResidue
AGLN372
AHIS376

site_idAC6
Number of Residues3
DetailsBINDING SITE FOR RESIDUE GOL A 606
ChainResidue
AVAL374
AGLY377
AGOL608

site_idAC7
Number of Residues5
DetailsBINDING SITE FOR RESIDUE GOL A 607
ChainResidue
ATHR131
AGLN137
ASER169
AHOH714
AHOH752

site_idAC8
Number of Residues6
DetailsBINDING SITE FOR RESIDUE GOL A 608
ChainResidue
AGLN371
AVAL374
AGLU411
AGLN412
ATYR415
AGOL606

site_idAC9
Number of Residues3
DetailsBINDING SITE FOR RESIDUE DTT A 609
ChainResidue
ALEU454
AGLU456
ALYS459

site_idBC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE GOL B 601
ChainResidue
AALA431
ALYS432
BCYS223
BGLY224

site_idBC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE GOL B 602
ChainResidue
BGLN371
BGLU411
BGLN412

site_idBC3
Number of Residues3
DetailsBINDING SITE FOR RESIDUE GOL B 603
ChainResidue
BLYS353
BGLU354
BGLU396

site_idBC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE GOL B 604
ChainResidue
AHOH753
BALA431
BLYS432
BASP433
BHOH722
BHOH745

site_idBC5
Number of Residues1
DetailsBINDING SITE FOR RESIDUE GOL B 605
ChainResidue
BASN228

site_idBC6
Number of Residues3
DetailsBINDING SITE FOR RESIDUE DTT B 606
ChainResidue
BHIS418
BGLU456
BHOH712

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues80
DetailsRepeat: {"description":"ARM 1; truncated"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues78
DetailsRepeat: {"description":"ARM 2"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues82
DetailsRepeat: {"description":"ARM 3"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues88
DetailsRepeat: {"description":"ARM 4"}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues72
DetailsRepeat: {"description":"ARM 5"}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues78
DetailsRepeat: {"description":"ARM 6"}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues78
DetailsRepeat: {"description":"ARM 7"}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues84
DetailsRepeat: {"description":"ARM 8"}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues92
DetailsRepeat: {"description":"ARM 9"}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues78
DetailsRepeat: {"description":"ARM 10; atypical"}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues192
DetailsRegion: {"description":"NLS binding site (major)","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues176
DetailsRegion: {"description":"NLS binding site (minor)","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI13
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"18669648","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"20068231","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"23186163","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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