Seroatlas · Human Serome Atlas

MFHAS1

Malignant fibrous histiocytoma-amplified sequence 1

Also known as: LRRC65, MASL1, MFHA1_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q9Y4C4
Gene
MFHAS1
Ensembl
ENSG00000147324
Chromosome
8
Canonical length
1052 aa
Protein class
Disease related genes, Predicted intracellular proteins
Subcellular location
Nucleoplasm,Cytosol

OverviewNCBI Gene

Identified in a human 8p amplicon, this gene is a potential oncogene whose expression is enhanced in some malignant fibrous histiocytomas (MFH). The primary structure of its product includes an ATP/GTP-binding site, three leucine zipper domains, and a leucine-rich tandem repeat, which are structural or functional elements for interactions among proteins related to the cell cycle, and which suggest that overexpression might be oncogenic with respect to MFH. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

1052 residues, UniProt reviewed canonical sequence.

>Q9Y4C4|MFHAS1
     1  MAGMDSGNLK TARLWRDAAL RARKLRSNLR QLTLTAAGAC PGAGADALES PASPQLVLPA
    61  NLGDIEALNL GNNGLEEVPE GLGSALGSLR VLVLRRNRFA RLPPAVAELG HHLTELDVSH
   121  NRLTALGAEV VSALRELRKL NLSHNQLPAL PAQLGALAHL EELDVSFNRL AHLPDSLSCL
   181  SRLRTLDVDH NQLTAFPRQL LQLVALEELD VSSNRLRGLP EDISALRALK ILWLSGAELG
   241  TLPAGFCELA SLESLMLDNN GLQALPAQFS CLQRLKMLNL SSNLFEEFPA ALLPLAGLEE
   301  LYLSRNQLTS VPSLISGLGR LLTLWLDNNR IRYLPDSIVE LTGLEELVLQ GNQIAVLPDH
   361  FGQLSRVGLW KIKDNPLIQP PYEVCMKGIP YIAAYQKELA HSQPAVQPRL KLLLMGHKAA
   421  GKTLLRHCLT EERVEGCPGG GDKEKCYPPS PPPVSKGIEV TSWTADASRG LRFIVYDLAG
   481  DESYEVIQPF FLSPGALYVL VVNLATYEPR HFPTTVGSFL HRVGARVPHA VVCIVGTHAD
   541  LCGERELEEK CLDIHRQIAL QEKHDAEGLS RLAKVVDEAL ARDFELRSAS PHAAYYGVSD
   601  KNLRRRKAHF QYLLNHRLQI LSPVLPVSCR DPRHLRRLRD KLLSVAEHRE IFPNLHRVLP
   661  RSWQVLEELH FQPPQAQRLW LSWWDSARLG LQAGLTEDRL QSALSYLHES GKLLYFEDSP
   721  ALKEHVFHNL TRLIDILNVF FQRDPSLLLH KLLLGTSGEG KAEGESSPPM ARSTPSQELL
   781  RATQLHQYVE GFLLHGLLPA HVIRLLLKPH VQAQQDLQLL LELLEKMGLC YCLNKPKGKP
   841  LNGSTAWYKF PCYVQNEVPH AEAWINGTNL AGQSFVAEQL QIEYSFPFTF PLGLFARYSV
   901  QINSHVVHRS DGKFQIFAYR GKVPVVVSYR PARGVLQPDT LSIASHASLP NIWTAWQAIT
   961  PLVEELNVLL QEWPGLHYTV HILCSKCLKR GSPNPHAFPG ELLSQPRPEG VAEIICPKNG
  1021  SERVNVALVY PPTPTVISPC SKKNVGEKHR NQ

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against MFHAS1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.28
Highest tissue expression
12 nTPM

Expression across tissuesHPA

Tissue

  • colon: 12 nTPM
  • bone marrow: 11 nTPM
  • rectum: 11 nTPM
  • blood vessel: 11 nTPM
  • spleen: 11 nTPM
  • kidney: 10 nTPM

Single-cell type

  • distal convoluted tubule cells: 509 nCPM
  • renal connecting tubule cells: 480 nCPM
  • loop of henle epithelial cells: 322 nCPM
  • renal collecting duct principal cells: 187 nCPM
  • proximal tubule cells: 180 nCPM
  • astrocytes: 168 nCPM

Immune cell

  • memory CD4 T-cell: 1.3 nTPM
  • T-reg: 1.2 nTPM
  • gdT-cell: 0.9 nTPM
  • memory CD8 T-cell: 0.8 nTPM
  • MAIT T-cell: 0.7 nTPM
  • naive CD4 T-cell: 0.6 nTPM

Brain region

  • thalamus: 17 nTPM
  • cerebral cortex: 16 nTPM
  • hippocampal formation: 15 nTPM
  • midbrain: 14 nTPM
  • cerebellum: 14 nTPM
  • amygdala: 13 nTPM

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.82
gnomAD pLI
0
gnomAD missense Z
-1.94
DepMap mean gene effect
0.09
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of MFHAS1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads MFHAS1 as an antibody target. Whether an autoantibody or antibody against MFHAS1 could matter depends on whether native MFHAS1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

MFHAS1 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label MFHAS1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/MFHAS1. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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