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Protein

HLA class I histocompatibility antigen, Cw-18 alpha chain

Gene

HLA-C

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

Functioni

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

GO - Molecular functioni

GO - Biological processi

Keywordsi

Biological processImmunity

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, Cw-18 alpha chain
Alternative name(s):
MHC class I antigen Cw*18
Gene namesi
Name:HLA-C
Synonyms:HLAC
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome 6

Organism-specific databases

HGNCiHGNC:4933 HLA-C
MIMi142840 gene
neXtProtiNX_Q29865

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini25 – 308ExtracellularSequence analysisAdd BLAST284
Transmembranei309 – 333HelicalSequence analysisAdd BLAST25
Topological domaini334 – 366CytoplasmicSequence analysisAdd BLAST33

Keywords - Cellular componenti

Membrane, MHC I

Pathology & Biotechi

Organism-specific databases

DisGeNETi3107
MalaCardsiHLA-C

Polymorphism and mutation databases

DMDMi34304188

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 24Add BLAST24
ChainiPRO_000001888125 – 366HLA class I histocompatibility antigen, Cw-18 alpha chainAdd BLAST342

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Glycosylationi110N-linked (GlcNAc...) asparagineBy similarity1
Disulfide bondi125 ↔ 188PROSITE-ProRule annotation
Disulfide bondi227 ↔ 283PROSITE-ProRule annotation

Post-translational modificationi

Polyubiquitinated in a post ER compartment through 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, Ubl conjugation

Proteomic databases

EPDiQ29865
MaxQBiQ29865
PeptideAtlasiQ29865
PRIDEiQ29865

PTM databases

GlyConnecti1357
SwissPalmiQ29865

Expressioni

Gene expression databases

CleanExiHS_HLA-C

Organism-specific databases

HPAiHPA031454

Interactioni

Subunit structurei

Dimer of alpha chain and a beta chain (beta-2-microglobulin).By similarity

Binary interactionsi

Protein-protein interaction databases

IntActiQ29865, 6 interactors

Structurei

3D structure databases

ProteinModelPortaliQ29865
SMRiQ29865
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini209 – 297Ig-like C1-typeAdd BLAST89

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

Family and domain databases

Gene3Di2.60.40.10, 1 hit
3.30.500.10, 1 hit
InterProiView protein in InterPro
IPR007110 Ig-like_dom
IPR036179 Ig-like_dom_sf
IPR013783 Ig-like_fold
IPR003006 Ig/MHC_CS
IPR003597 Ig_C1-set
IPR011161 MHC_I-like_Ag-recog
IPR037055 MHC_I-like_Ag-recog_sf
IPR011162 MHC_I/II-like_Ag-recog
IPR001039 MHC_I_a_a1/a2
IPR010579 MHC_I_a_C
PfamiView protein in Pfam
PF07654 C1-set, 1 hit
PF00129 MHC_I, 1 hit
PF06623 MHC_I_C, 1 hit
PRINTSiPR01638 MHCCLASSI
SMARTiView protein in SMART
SM00407 IGc1, 1 hit
SUPFAMiSSF48726 SSF48726, 1 hit
SSF54452 SSF54452, 1 hit
PROSITEiView protein in PROSITE
PS50835 IG_LIKE, 1 hit
PS00290 IG_MHC, 1 hit

Sequence (1+)i

Sequence statusi: Complete.

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

This entry has 1 described isoform and 54 potential isoforms that are computationally mapped.Show allAlign All

Q29865-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MRVMAPRALL LLLSGGLALT ETWACSHSMR YFDTAVSRPG RGEPRFISVG
60 70 80 90 100
YVDDTQFVRF DSDAASPRGE PRAPWVEQEG PEYWDRETQK YKRQAQADRV
110 120 130 140 150
NLRKLRGYYN QSEDGSHTLQ RMFGCDLGPD GRLLRGYNQF AYDGKDYIAL
160 170 180 190 200
NEDLRSWTAA DTAAQITQRK WEAAREAEQR RAYLEGTCVE WLRRYLENGK
210 220 230 240 250
ETLQRAEHPK THVTHHPVSD HEATLRCWAL GFYPAEITLT WQWDGEDQTQ
260 270 280 290 300
DTELVETRPA GDGTFQKWAA VVVPSGEEQR YTCHVQHEGL PEPLTLRWKP
310 320 330 340 350
SSQPTIPIVG IVAGLAVLVV LAVLGAVVAV VMCRRKSSGG KGGSCSQAAS
360
SNSAQGSDES LIACKA
Length:366
Mass (Da):40,933
Last modified:November 1, 1996 - v1
Checksum:i67CE7E948E4327D8
GO

Computationally mapped potential isoform sequencesi

There are 54 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
P103211C07_HUMAN
HLA class I histocompatibility anti...
HLA-C HLAC
366Annotation score:
P304991C01_HUMAN
HLA class I histocompatibility anti...
HLA-C HLAC
366Annotation score:
Q299631C06_HUMAN
HLA class I histocompatibility anti...
HLA-C HLAC
366Annotation score:
P305041C04_HUMAN
HLA class I histocompatibility anti...
HLA-C HLAC
366Annotation score:
P042221C03_HUMAN
HLA class I histocompatibility anti...
HLA-C HLAC
366Annotation score:
P305011C02_HUMAN
HLA class I histocompatibility anti...
HLA-C HLAC
366Annotation score:
Q956041C17_HUMAN
HLA class I histocompatibility anti...
HLA-C D6S204, HLA-JY3, HLAC
372Annotation score:
Q070001C15_HUMAN
HLA class I histocompatibility anti...
HLA-C HLAC
366Annotation score:
P305081C12_HUMAN
HLA class I histocompatibility anti...
HLA-C HLAC
366Annotation score:
Q9TNN71C05_HUMAN
HLA class I histocompatibility anti...
HLA-C HLAC
366Annotation score:
There are more potential isoformsShow all

Polymorphismi

The following alleles of Cw-18 are known: Cw*18:01 (Cw*04GB) and Cw*18:02 (Cw*18GB). The sequence shown is that of Cw*18:01.

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Natural variantiVAR_05950910L → I. Corresponds to variant dbSNP:rs2308527Ensembl.1
Natural variantiVAR_05651743E → K. Corresponds to variant dbSNP:rs1050438Ensembl.1
Natural variantiVAR_06145648S → A. Corresponds to variant dbSNP:rs707911Ensembl.1
Natural variantiVAR_06145748S → P. Corresponds to variant dbSNP:rs707911Ensembl.1
Natural variantiVAR_06145848S → T. Corresponds to variant dbSNP:rs707911Ensembl.1
Natural variantiVAR_05651873A → E. Corresponds to variant dbSNP:rs1050409Ensembl.1
Natural variantiVAR_05651976V → M. Corresponds to variant dbSNP:rs1065382Ensembl.1
Natural variantiVAR_05652090K → N. Corresponds to variant dbSNP:rs28626310Ensembl.1
Natural variantiVAR_05652197A → T. Corresponds to variant dbSNP:rs41543814Ensembl.1
Natural variantiVAR_056523201E → K. Corresponds to variant dbSNP:rs1131103Ensembl.1
Natural variantiVAR_056524272V → MCombined sourcesCorresponds to variant dbSNP:rs1050276Ensembl.1
Natural variantiVAR_016635319V → A in allele Cw*18:02. 1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X96582 mRNA Translation: CAA65401.1
AJ420253 Genomic DNA Translation: CAD12438.1
Z80227 Genomic DNA Translation: CAB02408.1
Y09156 mRNA Translation: CAA70354.1
UniGeneiHs.656020
Hs.743218

Genome annotation databases

EnsembliENST00000420206; ENSP00000410214; ENSG00000228299

Keywords - Coding sequence diversityi

Polymorphism

Similar proteinsi

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X96582 mRNA Translation: CAA65401.1
AJ420253 Genomic DNA Translation: CAD12438.1
Z80227 Genomic DNA Translation: CAB02408.1
Y09156 mRNA Translation: CAA70354.1
UniGeneiHs.656020
Hs.743218

3D structure databases

ProteinModelPortaliQ29865
SMRiQ29865
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiQ29865, 6 interactors

PTM databases

GlyConnecti1357
SwissPalmiQ29865

Polymorphism and mutation databases

DMDMi34304188

Proteomic databases

EPDiQ29865
MaxQBiQ29865
PeptideAtlasiQ29865
PRIDEiQ29865

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENST00000420206; ENSP00000410214; ENSG00000228299

Organism-specific databases

DisGeNETi3107
GeneCardsiHLA-C
HGNCiHGNC:4933 HLA-C
HPAiHPA031454
MalaCardsiHLA-C
MIMi142840 gene
neXtProtiNX_Q29865
GenAtlasiSearch...

Phylogenomic databases

HOVERGENiHBG016709

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-C human
SOURCEiSearch...

Gene expression databases

CleanExiHS_HLA-C

Family and domain databases

Gene3Di2.60.40.10, 1 hit
3.30.500.10, 1 hit
InterProiView protein in InterPro
IPR007110 Ig-like_dom
IPR036179 Ig-like_dom_sf
IPR013783 Ig-like_fold
IPR003006 Ig/MHC_CS
IPR003597 Ig_C1-set
IPR011161 MHC_I-like_Ag-recog
IPR037055 MHC_I-like_Ag-recog_sf
IPR011162 MHC_I/II-like_Ag-recog
IPR001039 MHC_I_a_a1/a2
IPR010579 MHC_I_a_C
PfamiView protein in Pfam
PF07654 C1-set, 1 hit
PF00129 MHC_I, 1 hit
PF06623 MHC_I_C, 1 hit
PRINTSiPR01638 MHCCLASSI
SMARTiView protein in SMART
SM00407 IGc1, 1 hit
SUPFAMiSSF48726 SSF48726, 1 hit
SSF54452 SSF54452, 1 hit
PROSITEiView protein in PROSITE
PS50835 IG_LIKE, 1 hit
PS00290 IG_MHC, 1 hit
ProtoNetiSearch...

Entry informationi

Entry namei1C18_HUMAN
AccessioniPrimary (citable) accession number: Q29865
Secondary accession number(s): O78203, P79498
Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 22, 2003
Last sequence update: November 1, 1996
Last modified: October 10, 2018
This is version 131 of the entry and version 1 of the sequence. See 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

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  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. Human chromosome 6
    Human chromosome 6: entries, gene names and cross-references to MIM
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