Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

HLA class I histocompatibility antigen, A-24 alpha chain

Gene

HLA-A

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Involved in the presentation of foreign antigens to the immune system.

GO - Molecular functioni

  • beta-2-microglobulin binding Source: UniProtKB
  • peptide antigen binding Source: UniProtKB
  • TAP binding Source: UniProtKB

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Host-virus interaction, Immunity

Enzyme and pathway databases

ReactomeiR-HSA-1236974. ER-Phagosome pathway.
R-HSA-1236977. Endosomal/Vacuolar pathway.
R-HSA-198933. Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell.
R-HSA-877300. Interferon gamma signaling.
R-HSA-909733. Interferon alpha/beta signaling.
R-HSA-983170. Antigen Presentation: Folding, assembly and peptide loading of class I MHC.

Names & Taxonomyi

Protein namesi
Recommended name:
HLA class I histocompatibility antigen, A-24 alpha chain
Alternative name(s):
Aw-24
HLA class I histocompatibility antigen, A-9 alpha chain
MHC class I antigen A*24
Gene namesi
Name:HLA-A
Synonyms:HLAA
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome 6

Organism-specific databases

HGNCiHGNC:4931. HLA-A.

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini25 – 308ExtracellularSequence analysisAdd BLAST284
Transmembranei309 – 332HelicalSequence analysisAdd BLAST24
Topological domaini333 – 365CytoplasmicSequence analysisAdd BLAST33

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, MHC I

Pathology & Biotechi

Organism-specific databases

MalaCardsiHLA-A.

Polymorphism and mutation databases

DMDMi32363482.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 24Add BLAST24
ChainiPRO_000001881825 – 365HLA class I histocompatibility antigen, A-24 alpha chainAdd BLAST341

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Glycosylationi110N-linked (GlcNAc...)1 Publication1
Disulfide bondi125 ↔ 188PROSITE-ProRule annotation1 Publication
Disulfide bondi227 ↔ 283PROSITE-ProRule annotation1 Publication
Modified residuei343PhosphoserineBy similarity1
Modified residuei344PhosphotyrosineBy similarity1
Modified residuei345PhosphoserineBy similarity1
Modified residuei349PhosphoserineBy similarity1
Modified residuei350PhosphoserineCombined sources1
Modified residuei352PhosphoserineCombined sources1
Modified residuei356PhosphoserineCombined sources1
Modified residuei359PhosphoserineCombined sources1

Post-translational modificationi

Polyubiquitinated in a post ER compartment by interaction with human herpesvirus 8 MIR1 protein. This targets the protein for rapid degradation via the ubiquitin system (By similarity).By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein, Phosphoprotein, Ubl conjugation

Proteomic databases

EPDiP05534.
MaxQBiP05534.
PeptideAtlasiP05534.
PRIDEiP05534.

PTM databases

iPTMnetiP05534.
SwissPalmiP05534.

Expressioni

Gene expression databases

BgeeiENSG00000224320.
CleanExiHS_HLA-A.

Interactioni

Subunit structurei

Heterodimer of an alpha chain and a beta chain (beta-2-microglobulin). Interacts with human herpesvirus 8 MIR1 protein (By similarity).By similarity

GO - Molecular functioni

  • beta-2-microglobulin binding Source: UniProtKB
  • TAP binding Source: UniProtKB

Structurei

Secondary structure

1365
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi27 – 36Combined sources10
Beta strandi41 – 43Combined sources3
Beta strandi45 – 52Combined sources8
Beta strandi55 – 61Combined sources7
Beta strandi64 – 66Combined sources3
Beta strandi70 – 73Combined sources4
Helixi74 – 76Combined sources3
Helixi81 – 109Combined sources29
Beta strandi113 – 115Combined sources3
Beta strandi118 – 127Combined sources10
Beta strandi133 – 142Combined sources10
Beta strandi145 – 150Combined sources6
Beta strandi157 – 159Combined sources3
Helixi162 – 173Combined sources12
Helixi176 – 185Combined sources10
Helixi187 – 198Combined sources12
Helixi200 – 203Combined sources4
Beta strandi210 – 235Combined sources26
Beta strandi238 – 243Combined sources6
Beta strandi246 – 248Combined sources3
Helixi249 – 251Combined sources3
Beta strandi252 – 254Combined sources3
Beta strandi261 – 263Combined sources3
Beta strandi265 – 274Combined sources10
Helixi278 – 280Combined sources3
Beta strandi281 – 286Combined sources6
Beta strandi290 – 292Combined sources3
Beta strandi294 – 297Combined sources4
Beta strandi298 – 300Combined sources3

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2BCKX-ray2.80A/D25-300[»]
3I6LX-ray2.40D25-298[»]
3NFNX-ray2.39A25-298[»]
3QZWX-ray2.80A/D25-298[»]
3VXMX-ray2.50A25-298[»]
3VXNX-ray1.95A25-298[»]
3VXOX-ray2.61A/D25-298[»]
3VXPX-ray2.50A/D25-298[»]
3VXRX-ray2.40A25-298[»]
3VXSX-ray1.80A25-298[»]
3VXUX-ray2.70A/F25-298[»]
3W0WX-ray2.60A25-298[»]
3WL9X-ray1.66A25-298[»]
3WLBX-ray2.00A25-298[»]
4F7MX-ray2.40A/D25-298[»]
4F7PX-ray1.90A25-298[»]
4F7TX-ray1.70A/D25-298[»]
4WU5X-ray2.40A/D25-298[»]
4WU7X-ray2.30A/D25-298[»]
5HGAX-ray2.20A/D25-298[»]
5HGBX-ray2.40A/D/G/J25-298[»]
5HGDX-ray2.07A/D25-298[»]
5HGHX-ray2.39A25-298[»]
ProteinModelPortaliP05534.
SMRiP05534.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP05534.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini209 – 295Ig-like C1-typeAdd BLAST87

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni25 – 114Alpha-1Add BLAST90
Regioni115 – 206Alpha-2Add BLAST92
Regioni207 – 298Alpha-3Add BLAST92
Regioni299 – 308Connecting peptide10

Sequence similaritiesi

Belongs to the MHC class I family.Curated

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

HOVERGENiHBG016709.
PhylomeDBiP05534.

Family and domain databases

Gene3Di2.60.40.10. 1 hit.
3.30.500.10. 1 hit.
InterProiIPR007110. Ig-like_dom.
IPR013783. Ig-like_fold.
IPR003006. Ig/MHC_CS.
IPR003597. Ig_C1-set.
IPR011161. MHC_I-like_Ag-recog.
IPR011162. MHC_I/II-like_Ag-recog.
IPR001039. MHC_I_a_a1/a2.
IPR010579. MHC_I_a_C.
[Graphical view]
PfamiPF07654. C1-set. 1 hit.
PF00129. MHC_I. 1 hit.
PF06623. MHC_I_C. 1 hit.
[Graphical view]
PRINTSiPR01638. MHCCLASSI.
SMARTiSM00407. IGc1. 1 hit.
[Graphical view]
SUPFAMiSSF48726. SSF48726. 1 hit.
SSF54452. SSF54452. 1 hit.
PROSITEiPS50835. IG_LIKE. 1 hit.
PS00290. IG_MHC. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P05534-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAVMAPRTLV LLLSGALALT QTWAGSHSMR YFSTSVSRPG RGEPRFIAVG
60 70 80 90 100
YVDDTQFVRF DSDAASQRME PRAPWIEQEG PEYWDEETGK VKAHSQTDRE
110 120 130 140 150
NLRIALRYYN QSEAGSHTLQ MMFGCDVGSD GRFLRGYHQY AYDGKDYIAL
160 170 180 190 200
KEDLRSWTAA DMAAQITKRK WEAAHVAEQQ RAYLEGTCVD GLRRYLENGK
210 220 230 240 250
ETLQRTDPPK THMTHHPISD HEATLRCWAL GFYPAEITLT WQRDGEDQTQ
260 270 280 290 300
DTELVETRPA GDGTFQKWAA VVVPSGEEQR YTCHVQHEGL PKPLTLRWEP
310 320 330 340 350
SSQPTVPIVG IIAGLVLLGA VITGAVVAAV MWRRNSSDRK GGSYSQAASS
360
DSAQGSDVSL TACKV
Length:365
Mass (Da):40,689
Last modified:June 27, 2003 - v2
Checksum:iD33684D126F98EC3
GO

Polymorphismi

The following alleles of A-24 are known: A*24:01, A*24:02, A*24:03, A*24:06, A*24:08 (A9HH), A*24:10 (A*24JV), A*24:13 (A*24YM), A*24:14 (A*24SA) and A*24:29. Allele A*24:02 is represented in all major racial groups. Allele A*24:06 and allele A*24:13 are found in the Australian Aboriginal population. Allele A*24:14 is found in individuals of South American descent. The sequence shown is that of A*24:02.Curated

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_0043545A → G in allele A*24:01. 1 Publication1
Natural variantiVAR_00435527H → Q in allele A*24:08. 1 PublicationCorresponds to variant rs41541319dbSNPEnsembl.1
Natural variantiVAR_00435686E → G in allele A*24:08. 1 Publication1
Natural variantiVAR_00435789G → R in allele A*24:08 and allele A*24:29. 2 Publications1
Natural variantiVAR_015765119L → V in allele A*24:14. 1 Publication1
Natural variantiVAR_015766121M → R in allele A*24:14. 1 Publication1
Natural variantiVAR_015767123F → Y in allele A*24:14. 1 Publication1
Natural variantiVAR_015768131G → W in allele A*24:14. 1 Publication1
Natural variantiVAR_015769180Q → L in allele A*24:13. 1 Publication1
Natural variantiVAR_004358180Q → W in allele A*24:06; requires 2 nucleotide substitutions. Combined sources1 Publication1
Natural variantiVAR_015770187T → R in allele A*24:10. 1 Publication1
Natural variantiVAR_004359190 – 191DG → EW in allele A*24:03 and allele A*24:10. 2 Publications2
Natural variantiVAR_056263205R → H.Corresponds to variant rs17185861dbSNPEnsembl.1
Natural variantiVAR_004360206T → A in allele A*24:01. 1 Publication1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M15497 Genomic DNA. Translation: AAA59611.1.
M64740 mRNA. Translation: AAA59600.1.
M64741 Genomic DNA. Translation: AAA59601.1.
Z72422 Genomic DNA. Translation: CAA96532.1.
D83516 mRNA. Translation: BAA11936.1.
U37111, U37110 Genomic DNA. Translation: AAA83264.1.
U37113, U37112 Genomic DNA. Translation: AAA83265.1.
AH004915 Genomic DNA. Translation: AAB40048.1.
AH005378 Genomic DNA. Translation: AAB60651.1.
PIRiI54416.
UniGeneiHs.181244.
Hs.713441.

Genome annotation databases

EnsembliENST00000431930; ENSP00000406366; ENSG00000229215.
ENST00000443552; ENSP00000404678; ENSG00000224320.

Keywords - Coding sequence diversityi

Polymorphism

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M15497 Genomic DNA. Translation: AAA59611.1.
M64740 mRNA. Translation: AAA59600.1.
M64741 Genomic DNA. Translation: AAA59601.1.
Z72422 Genomic DNA. Translation: CAA96532.1.
D83516 mRNA. Translation: BAA11936.1.
U37111, U37110 Genomic DNA. Translation: AAA83264.1.
U37113, U37112 Genomic DNA. Translation: AAA83265.1.
AH004915 Genomic DNA. Translation: AAB40048.1.
AH005378 Genomic DNA. Translation: AAB60651.1.
PIRiI54416.
UniGeneiHs.181244.
Hs.713441.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2BCKX-ray2.80A/D25-300[»]
3I6LX-ray2.40D25-298[»]
3NFNX-ray2.39A25-298[»]
3QZWX-ray2.80A/D25-298[»]
3VXMX-ray2.50A25-298[»]
3VXNX-ray1.95A25-298[»]
3VXOX-ray2.61A/D25-298[»]
3VXPX-ray2.50A/D25-298[»]
3VXRX-ray2.40A25-298[»]
3VXSX-ray1.80A25-298[»]
3VXUX-ray2.70A/F25-298[»]
3W0WX-ray2.60A25-298[»]
3WL9X-ray1.66A25-298[»]
3WLBX-ray2.00A25-298[»]
4F7MX-ray2.40A/D25-298[»]
4F7PX-ray1.90A25-298[»]
4F7TX-ray1.70A/D25-298[»]
4WU5X-ray2.40A/D25-298[»]
4WU7X-ray2.30A/D25-298[»]
5HGAX-ray2.20A/D25-298[»]
5HGBX-ray2.40A/D/G/J25-298[»]
5HGDX-ray2.07A/D25-298[»]
5HGHX-ray2.39A25-298[»]
ProteinModelPortaliP05534.
SMRiP05534.
ModBaseiSearch...
MobiDBiSearch...

PTM databases

iPTMnetiP05534.
SwissPalmiP05534.

Polymorphism and mutation databases

DMDMi32363482.

Proteomic databases

EPDiP05534.
MaxQBiP05534.
PeptideAtlasiP05534.
PRIDEiP05534.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENST00000431930; ENSP00000406366; ENSG00000229215.
ENST00000443552; ENSP00000404678; ENSG00000224320.

Organism-specific databases

GeneCardsiHLA-A.
H-InvDBHIX0165910.
HIX0165954.
HIX0166079.
HIX0166152.
HIX0166432.
HIX0166685.
HIX0166954.
HGNCiHGNC:4931. HLA-A.
MalaCardsiHLA-A.
MIMi142800. gene.
neXtProtiNX_P05534.
GenAtlasiSearch...

Phylogenomic databases

HOVERGENiHBG016709.
PhylomeDBiP05534.

Enzyme and pathway databases

ReactomeiR-HSA-1236974. ER-Phagosome pathway.
R-HSA-1236977. Endosomal/Vacuolar pathway.
R-HSA-198933. Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell.
R-HSA-877300. Interferon gamma signaling.
R-HSA-909733. Interferon alpha/beta signaling.
R-HSA-983170. Antigen Presentation: Folding, assembly and peptide loading of class I MHC.

Miscellaneous databases

ChiTaRSiHLA-A. human.
EvolutionaryTraceiP05534.
SOURCEiSearch...

Gene expression databases

BgeeiENSG00000224320.
CleanExiHS_HLA-A.

Family and domain databases

Gene3Di2.60.40.10. 1 hit.
3.30.500.10. 1 hit.
InterProiIPR007110. Ig-like_dom.
IPR013783. Ig-like_fold.
IPR003006. Ig/MHC_CS.
IPR003597. Ig_C1-set.
IPR011161. MHC_I-like_Ag-recog.
IPR011162. MHC_I/II-like_Ag-recog.
IPR001039. MHC_I_a_a1/a2.
IPR010579. MHC_I_a_C.
[Graphical view]
PfamiPF07654. C1-set. 1 hit.
PF00129. MHC_I. 1 hit.
PF06623. MHC_I_C. 1 hit.
[Graphical view]
PRINTSiPR01638. MHCCLASSI.
SMARTiSM00407. IGc1. 1 hit.
[Graphical view]
SUPFAMiSSF48726. SSF48726. 1 hit.
SSF54452. SSF54452. 1 hit.
PROSITEiPS50835. IG_LIKE. 1 hit.
PS00290. IG_MHC. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry namei1A24_HUMAN
AccessioniPrimary (citable) accession number: P05534
Secondary accession number(s): P30448
, P30449, Q29908, Q29909, Q29910, Q95355
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1988
Last sequence update: June 27, 2003
Last modified: November 2, 2016
This is version 168 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. Human chromosome 6
    Human chromosome 6: entries, gene names and cross-references to MIM
  2. Human entries with polymorphisms or disease mutations
    List of human entries with polymorphisms or disease mutations
  3. Human polymorphisms and disease mutations
    Index of human polymorphisms and disease mutations
  4. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  5. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  6. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.