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UniProtKB/Swiss-Prot entry Q6ZVN8


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name RGMC_HUMAN
Primary accession number Q6ZVN8
Secondary accession numbers Q2PQ63 Q6IMF6 Q8NAH2 Q8WVJ5
Integrated into Swiss-Prot on August 16, 2004
Sequence was last modified on July 5, 2004 (Sequence version 1)
Annotations were last modified on    September 2, 2008 (Entry version 43)
Name and origin of the protein
Protein name Hemojuvelin [Precursor]
Synonyms Hemochromatosis type 2 protein
RGM domain family member C
Gene name
Name: HFE2
Synonyms: HJV, RGMC
From
Homo sapiens (Human) [TaxID: 9606] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM A), ALTERNATIVE SPLICING, TISSUE SPECIFICITY, AND VARIANTS HFE2A ASN-222 AND VAL-320.
TISSUE=Liver;
DOI=10.1038/ng1274; PubMed=14647275 [NCBI, ExPASy, EBI, Israel, Japan]
Papanikolaou G., Samuels M.E., Ludwig E.H., MacDonald M.L.E., Franchini P.L., Dube M.-P., Andres L., MacFarlane J., Sakellaropoulos N., Politou M., Nemeth E., Thompson J., Risler J.K., Zaborowska C., Babakaiff R., Radomski C.C., Pape T.D., Davidas O., Christakis J., Brissot P., Lockitch G., Ganz T., Hayden M.R., Goldberg Y.P.;
"Mutations in HFE2 cause iron overload in chromosome 1q-linked juvenile hemochromatosis.";
Nat. Genet. 36:77-82(2004).
[2]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS A AND B).
TISSUE=Liver, and Skeletal muscle;
DOI=10.1038/ng1285; PubMed=14702039 [NCBI, ExPASy, EBI, Israel, Japan]
Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S., Yamamoto J., Saito K., Kawai Y., Isono Y., Nakamura Y., Nagahari K., Murakami K., Yasuda T., Iwayanagi T., Wagatsuma M., Shiratori A., Sudo H., Hosoiri T., Kaku Y., Kodaira H., Kondo H., Sugawara M., Takahashi M., Kanda K., Yokoi T., Furuya T., Kikkawa E., Omura Y., Abe K., Kamihara K., Katsuta N., Sato K., Tanikawa M., Yamazaki M., Ninomiya K., Ishibashi T., Yamashita H., Murakawa K., Fujimori K., Tanai H., Kimata M., Watanabe M., Hiraoka S., Chiba Y., Ishida S., Ono Y., Takiguchi S., Watanabe S., Yosida M., Hotuta T., Kusano J., Kanehori K., Takahashi-Fujii A., Hara H., Tanase T.-O., Nomura Y., Togiya S., Komai F., Hara R., Takeuchi K., Arita M., Imose N., Musashino K., Yuuki H., Oshima A., Sasaki N., Aotsuka S., Yoshikawa Y., Matsunawa H., Ichihara T., Shiohata N., Sano S., Moriya S., Momiyama H., Satoh N., Takami S., Terashima Y., Suzuki O., Nakagawa S., Senoh A., Mizoguchi H., Goto Y., Shimizu F., Wakebe H., Hishigaki H., Watanabe T., Sugiyama A., Takemoto M., Kawakami B., Yamazaki M., Watanabe K., Kumagai A., Itakura S., Fukuzumi Y., Fujimori Y., Komiyama M., Tashiro H., Tanigami A., Fujiwara T., Ono T., Yamada K., Fujii Y., Ozaki K., Hirao M., Ohmori Y., Kawabata A., Hikiji T., Kobatake N., Inagaki H., Ikema Y., Okamoto S., Okitani R., Kawakami T., Noguchi S., Itoh T., Shigeta K., Senba T., Matsumura K., Nakajima Y., Mizuno T., Morinaga M., Sasaki M., Togashi T., Oyama M., Hata H., Watanabe M., Komatsu T., Mizushima-Sugano J., Satoh T., Shirai Y., Takahashi Y., Nakagawa K., Okumura K., Nagase T., Nomura N., Kikuchi H., Masuho Y., Yamashita R., Nakai K., Yada T., Nakamura Y., Ohara O., Isogai T., Sugano S.;
"Complete sequencing and characterization of 21,243 full-length human cDNAs.";
Nat. Genet. 36:40-45(2004).
[3]
NUCLEOTIDE SEQUENCE [GENOMIC DNA].
Livingston R.J., Rieder M.J., Shaffer T., Bertucci C., Baier C.N., Rajkumar N., Willa H.T., Daniels M., Downing T.K., Stanaway I.B., Nguyen C.P., Gildersleeve H., Cassidy C.M., Johnson E.J., Swanson J.E., McFarland I., Yool B., Park C., Nickerson D.A.;
"NIEHS-SNPs, environmental genome project, NIEHS ES15478, Department of Genome Sciences, Seattle, WA (URL: http://egp.gs.washington.edu).";
Submitted (NOV-2005) to the EMBL/GenBank/DDBJ databases.
[4]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS B AND C).
TISSUE=PNS, and Skeletal muscle;
DOI=10.1101/gr.2596504; PubMed=15489334 [NCBI, ExPASy, EBI, Israel, Japan]
The MGC Project Team;
"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).";
Genome Res. 14:2121-2127(2004).
[5]
VARIANTS HFE2A PRO-85; ARG-99; ASP-168; SER-170; GLU-172; CYS-191; ARG-205; VAL-250; TRP-288 AND VAL-320.
DOI=10.1182/blood-2004-01-0192; PubMed=14982873 [NCBI, ExPASy, EBI, Israel, Japan]
Lanzara C., Roetto A., Daraio F., Rivard S., Ficarella R., Simard H., Cox T.M., Cazzola M., Piperno A., Gimenez-Roqueplo A.P., Grammatico P., Volinia S., Gasparini P., Camaschella C.;
"Spectrum of hemojuvelin gene mutations in 1q-linked juvenile hemochromatosis.";
Blood 103:4317-4321(2004).
[6]
VARIANTS HFE2A ARG-80; PRO-101; ASN-222 AND VAL-320.
DOI=10.1182/blood-2004-01-0072; PubMed=14982867 [NCBI, ExPASy, EBI, Israel, Japan]
Lee P.L., Beutler E., Rao S.V., Barton J.C.;
"Genetic abnormalities and juvenile hemochromatosis: mutations of the HJV gene encoding hemojuvelin.";
Blood 103:4669-4671(2004).
[7]
VARIANTS HFE2A VAL-320 AND TRP-321.
DOI=10.1111/j.1365-2141.2004.05165.x; PubMed=15461631 [NCBI, ExPASy, EBI, Israel, Japan]
Lee P.L., Barton J.C., Brandhagen D., Beutler E.;
"Hemojuvelin (HJV) mutations in persons of European, African-American and Asian ancestry with adult onset haemochromatosis.";
Br. J. Haematol. 127:224-229(2004).
Comments
  • FUNCTION: Involved in iron metabolism. May be a component of the signaling pathway which activates hepcidin (HAMP). May cooperate with hepcidin to restrict iron absorption in the gut. May act as a modulator of hepcidin expression, as deleterious mutations are associated with reduced hepcidin level. Could represent the cellular receptor for hepcidin.
  • SUBCELLULAR LOCATION: Cell membrane; Lipid-anchor, GPI-anchor (By similarity).
  • ALTERNATIVE PRODUCTS: 3 named isoforms [FASTA] produced by alternative splicing.
    Namea
    Isoform IDQ6ZVN8-1
    This is the isoform sequence displayed in this entry.
    Nameb
    Isoform IDQ6ZVN8-2
    Features which should be applied to build the isoform sequence: VSP_011319.
    Namec
    Isoform IDQ6ZVN8-3
    Features which should be applied to build the isoform sequence: VSP_011320.
  • TISSUE SPECIFICITY: Adult and fetal liver, heart, and skeletal muscle.
  • DISEASE: Defects in HFE2 are the cause of hemochromatosis type 2A (HFE2A) [MIM:602390]; also called juvenile hemochromatosis (JH). JH is an early-onset autosomal recessive disorder due to severe iron overload resulting in hypogonadotrophic hypogonadism, hepatic fibrosis or cirrhosis and cardiomyopathy, occurring typically before age of 30. It is the consequence of intestinal iron hyperabsorption associated with macrophages that do not load iron. Deleterious mutations of HFE2 reduced HAMP (hepcidin) levels despite iron overload, which normally induces HAMP expression.
  • SIMILARITY: Belongs to the repulsive guidance molecule (RGM) family.
  • WEB RESOURCE: Name=GeneReviews; URL="http://www.genetests.org/query?gene=HJV";.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
AY372521; AAR22390.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AK092682; BAC03944.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AK124273; BAC85823.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AK092692; BAC03947.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AK096905; BAC04890.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
DQ309445; ABC40718.1; -; Genomic_DNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC017926; AAH17926.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
BC085604; AAH85604.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
RefSeq NP_660320.3; -.
NP_973733.1; -.
NP_998817.1; -.
NP_998818.1; -.
UniGene Hs.632436
3D structure databases
ModBase Q6ZVN8.
Polymorphism databases
NIEHS-SNPs HFE2.
Organism-specific databases
H-InvDB HIX0000970; -.
HGNC HGNC:4887; HFE2.
GenAtlas HFE2.
HPA HPA014472; -.
MIM 602390; phenotype. [NCBI / EBI]
608374; gene. [NCBI / EBI]
PharmGKB PA29264; -.
GeneCards Q6ZVN8.
Gene expression databases
ArrayExpress Q6ZVN8; -.
CleanEx HS_HFE2; -.
GermOnline ENSG00000168509; Homo sapiens.
Family and domain databases
InterPro IPR009496; RGM_C.
IPR010536; RGM_N.
Graphical view of domain structure.
Pfam PF06534; RGM_C; 1.
PF06535; RGM_N; 1.
Pfam graphical view of domain structure.
BLOCKS Q6ZVN8.
Genome annotation databases
Ensembl ENSG00000168509; Homo sapiens. [Contig view]
GeneID 148738; -.
KEGG hsa:148738; -.
Phylogenomic databases
HOGENOM Q6ZVN8; -.
HOVERGEN Q6ZVN8; -.
Other
SOURCE HFE2; Homo sapiens.
ProtoNet Q6ZVN8.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
Alternative splicing; Cell membrane; Disease mutation; Glycoprotein; GPI-anchor; Lipoprotein; Membrane; Signal.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
SIGNAL   1    35  35     Potential. 
CHAIN   36   400  365     Hemojuvelin. PRO_0000030398
PROPEP   401   426  26     Removed in mature form (Potential). PRO_0000030399
COMPBIAS   64    78  15     Poly-Gly. 
COMPBIAS   127   130  4     Poly-Pro. 
LIPID   400   400        GPI-anchor amidated aspartate (Potential). 
CARBOHYD   118   118        N-linked (GlcNAc...) (Potential). 
CARBOHYD   213   213        N-linked (GlcNAc...) (Potential). 
CARBOHYD   372   372        N-linked (GlcNAc...) (Potential). 
VAR_SEQ   1   226        Missing (in isoform c). VSP_011320
VAR_SEQ   1   113        Missing (in isoform b). VSP_011319
VARIANT   80    80  1     C -> R (in HFE2A). VAR_019617 
VARIANT   85    85  1     S -> P (in HFE2A). VAR_019618 
VARIANT   99    99  1     G -> R (in HFE2A). VAR_019619 
VARIANT   101   101  1     L -> P (in HFE2A). VAR_019620 
VARIANT   168   168  1     A -> D (in HFE2A). VAR_019621 
VARIANT   170   170  1     F -> S (in HFE2A). VAR_019622 
VARIANT   172   172  1     D -> E (in HFE2A). VAR_019623 
VARIANT   191   191  1     W -> C (in HFE2A). VAR_019624 
VARIANT   205   205  1     S -> R (in HFE2A). VAR_019625 
VARIANT   222   222  1     I -> N (in HFE2A). VAR_019626 
VARIANT   250   250  1     G -> V (in HFE2A). VAR_019627 
VARIANT   288   288  1     R -> W (in HFE2A). VAR_019628 
VARIANT   320   320  1     G -> V (in HFE2A). VAR_019629 
VARIANT   321   321  1     C -> W (in HFE2A). VAR_019927 
CONFLICT   69    69        G -> GG (in Ref. 3; ABC40718). 
CONFLICT   299   299        K -> E (in Ref. 2; BAC03944). 
Sequence information
Length: 426 AA [This is the length of the unprocessed precursor] Molecular weight: 45080 Da [This is the MW of the unprocessed precursor] CRC64: 031C835F9B6DC06C [This is a checksum on the sequence]
        10         20         30         40         50         60 
MGEPGQSPSP RSSHGSPPTL STLTLLLLLC GHAHSQCKIL RCNAEYVSST LSLRGGGSSG 

        70         80         90        100        110        120 
ALRGGGGGGR GGGVGSGGLC RALRSYALCT RRTARTCRGD LAFHSAVHGI EDLMIQHNCS 

       130        140        150        160        170        180 
RQGPTAPPPP RGPALPGAGS GLPAPDPCDY EGRFSRLHGR PPGFLHCASF GDPHVRSFHH 

       190        200        210        220        230        240 
HFHTCRVQGA WPLLDNDFLF VQATSSPMAL GANATATRKL TIIFKNMQEC IDQKVYQAEV 

       250        260        270        280        290        300 
DNLPVAFEDG SINGGDRPGG SSLSIQTANP GNHVEIQAAY IGTTIIIRQT AGQLSFSIKV 

       310        320        330        340        350        360 
AEDVAMAFSA EQDLQLCVGG CPPSQRLSRS ERNRRGAITI DTARRLCKEG LPVEDAYFHS 

       370        380        390        400        410        420 
CVFDVLISGD PNFTVAAQAA LEDARAFLPD LEKLHLFPSD AGVPLSSATL LAPLLSGLFV 


LWLCIQ 

Q6ZVN8 in FASTA format

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