ABCMdb

PMID: 26324191

Degiorgio D, Crosignani A, Colombo C, Bordo D, Zuin M, Vassallo E, Syren ML, Coviello DA, Battezzati PM
ABCB4 mutations in adult patients with cholestatic liver disease: impact and phenotypic expression.
J Gastroenterol. 2015 Sep 1., [PubMed]

Sentences

No. Mutations Sentence Comment

70 ABCB4 p.Arg590Gln ABCB4 p.Ala511Thr ABCB4 p.Arg545Cys ABCB4 p.Glu616Lys ABCB4 p.Gly811Arg A more significant effect is attributable to the five mutations (Figs. 2, 3, residues in red) ascribed to type A [p.(A511T), p.(R545C), p.(R590Q), p.(E616K), p.(G811R)]. Login to comment 71 ABCB4 p.Gly811Arg With the exception of p.(G811R), they are located in the N-terminal nucleotide binding Fig. 1 Patient enrollment. Login to comment 72 ABCB4 p.Arg590Gln ABCB4 p.Thr175Ala ABCB4 p.Ser320Phe ABCB4 p.Ala511Thr ABCB4 p.Leu73Val ABCB4 p.Arg159* ABCB4 p.Arg545Cys ABCB4 p.Asn510Ser ABCB4 p.Glu616Lys ABCB4 p.Gly811Arg ABCB4 p.Leu859Trp ABCB4 p.Gly634Glu ABCB4 p.Gln1181* ABCB4 p.Met948Ile CCP chronic cholestatic profile, NCCP patients without chronic cholestatic profile, PBC primary biliary cirrhosis, PSC primary sclerosing cholangitis, ICP intrahepatic cholestasis of pregnancy, JC juvenile cholelithiasis, AIH autoimmune hepatitis, OS overlap syndrome between AIH and PBC or PSC, ICC idiopathic chronic cholestasis; a with (n = 14) or without (n = 23) other cholangiopathies in the personal/family history (see ''Methods``), b with (n = 9) or without (n = 15) other cholangiopathies in the personal/family history (see ''Methods``), c with (n = 2) or without (n = 2) other cholangiopathies in the personal/family history (see ''Methods``) Table 1 Heterozygous nucleotide changes within the ABCB4 gene identified in 18 adult patients with cholangiopathies and predicted impact on MDR3 Nucleotide changea Involved regions Type of mutation Mutant protein Location on the protein Degree of conservationb Reference genotypesc c.217C[G Exon 4 Missense p.(L73V) TM1 B 7, 21 c.475C[T Exon 6 Non-sense p.(R159X) ICD1 X 8, 14 c.523A[G Exon 6 Missense p.(T175A) ICD1 B 18, 21, 8, 25, 14 c.959C[T Exon 9 Missense p.(S320F) TM5 B 18, 8, 14 c.1529A[G Exon 13 Missense p.(N510S) N-ter NBD B 14 c.1531G[A Exon 13 Missense p.(A511T) N-ter NBD A 8, 14 c.1633C[T Exon 14 Missense p.(R545C) N-ter NBD A 21 c.1769G[A Exon 15 Missense p.(R590Q) N-ter NBD A 8, 13, 14, 25 c.1846G[A Exon 15 Missense p.(E616K) N-ter NBD A This study (JN392435) c.1901G[A Exon 16 Missense p.G634E Linker region B This study (JN392436) c.2431G[C Exon 20 Missense p.(G811R) ICD4 A This study (JN392437) c.2544_2548delATCAT Exon 21 Frameshift p.(S849YfsX24) TM9 X This study (JN392438) c.2576T[G Exon 21 Missense p.(L859W) TM10 B This study (JN392439) c.2844G[C Exon 23 Missense p.(M948I) TM11 B This study (JN392440) c.3541C[T Exon 27 Non-sense p.(Q1181X) C-ter NBD X This study (JN392441) TM transmembrane domain, ICD intracellular domain, N-ter NBD N-terminal nucleotide binding domain, C-ter NBD C-terminal nucleotide binding domain a The mutations were numbered according to GenBank NM_018849 and NP_061337. Login to comment 76 ABCB4 p.Thr175Ala ABCB4 p.Ser320Phe ABCB4 p.Leu73Val ABCB4 p.Asn510Ser ABCB4 p.Gly634Glu ABCB1 p.Met948Ile ABCB1 p.Leu859Trp A second group of seven mutations is ascribed to type B [p.(L73V), p.(T175A), p.(N510S), p.(G634E), p.(L859W), and p.(M948I); and p.(S320F)] (Figs. 2, 3, residues in blue). Login to comment 80 ABCB4 p.Glu616Lys Only p.(E616K) [c.1846G[A] has been annotated (rs370195624): no frequency was reported in dbSNP; whereas in EVS, one minor allele among 13,006 (A/ G = 0.008 %) was reported. Login to comment 81 ABCB4 p.Arg590Gln ABCB4 p.Thr175Ala ABCB4 p.Ser320Phe ABCB4 p.Ala511Thr ABCB4 p.Leu73Val ABCB4 p.Arg545Cys ABCB4 p.Asn510Ser ABCB4 p.Glu616Lys ABCB4 p.Gly811Arg ABCB4 p.Leu859Trp ABCB4 p.Gly634Glu ABCB4 p.Met948Ile L73V T175A S320F N510S A511T R590Q E616K R545C G634E G811R L859W M948I ...69_SGLPLMMIV_77... ...69_SGLPLMMIV_77... ...66_SGLPLMMIV_74... ...66_SGLPLMMIV_74... ...69_SGLPLMMIV_77... ...69_SGLPLMMIV_77... ...67_SGLPLMMIV_75..... ...63_AGLPLMMLV_71... ...92_LGFPIMTIL_100.. ...59_MSEPLMTVV_67... ...77_GFAMPALTI_85... ...79_ASFPIMSIL_87... ..107_LGMPLMSLV_115.. ...89_AGLPLMSIL_97... ...39_ASDTFMLSL_47... ...39_ASDTFMLSL_47... ...39_AADTYMISL_47... ...28_GIPMLIPLL_36... 171_TELNTRLTD_179... 171_TELNTRLTD_179... 168_TELNTRLTD_176... 168_TELNTRLTD_176... 171_TELNTRLTD_179... 171_TELNTRLTD_179... 169_TELNTRLTD_177... 169_GELNTRLTD_177... 180_GEVVGRMSG_188... 146_GEAASRISA_154.. 164_GEVVGRMSG_172.. 167_GEVVGRMSG_175.. 197_GEITTRITT_205.. 193_GTLATKLFD_201.. 122_GTLLSRITY_130... 122_GTLLSRITY_130... 122_GGLLSRITY_130... 118_GQVISRVIN_126... 586_VIAHRLSTV_594... 586_VIAHRLSTV_594... 583_VIAHRLSTI_591... 583_VIAHRLSTV_591... 586_VIAHRLSTI_594... 586_VIAHRLSTI_594... 584_VIAHRLSTI_592... 584_VIAHRLSTV_592... 595_VVAHRLSTV_603... 561_IVAHRLSTI_569... 579_VIAHRLTTI_587... 582_IVAHRLSTV_590... 621_VIAHRLSTI_629... 608_IIAHRLSTI_616... 534_VIAHRLSTI_542... 534_VIAHRLSTI_542... 534_VIAHRLSTI_542... 531_IVAHRLSTI_539... 316_FWYGSTLVI_324... 316_FWYGSTLVI_324... 313_FWYGSTLVI_321... 313_FWYGSTLVI_321... 316_FWYGSTLVI_324... 316_FWYGSTLVI_324... 314_FWYGSTLVI_322... 314_FWYGTTLVL_322... 325_VWYGGKMIL_333... 291_FWYGAKLVI_299... 309_LWYGSKLVL_317... 312_IWFGGKMIL_320... 342_FWEGGRLLH_350... 338_FYIGVGWVH_346... 267_LYAASFPSV_275... 267_LYAASFPSV_275... 267_LFLASVDSI_275... 263 IGVGAYLAI 271... 506_VKEANAYEFI_515... 506_VKEANAYEFI_515... 503_VKEANAYDFI_512... 503_VKEANAYDFI_512... 506_VKEANAYEFI_515... 504_VKEANAYEFI_513... 504_VKDANAYEFI_513... 504_VKEANAYDFI_513... 515_TELANASKFI_524... 481_AELANAANFI_490... 499_AYLANAARFI_508... 502_TELANAAKFI_511... 541_AKLANAYDFI_550... 528_CKMANAEKFI_537... 454_ARMAYAMDFI_463... 454_ARMAYAMDFI_463... 454_ARQAHAMEFI_463... 451_AKMANAHDFI_460... 541_IAIARALVR_549... 541_IAIARALVR_549... 538_IAIARALVR_546... 538_IAIARALVR_546... 541_IAIARALVR_549... 541_IAIARALVR_549... 539_IAIARALVR_547... 539_IAIARALVR_547... 550_IAVARAILK_558... 516_IAIARAILK_524... 534_VAIARAILK_542... 537_IAIARAILK_545... 576_IAIARAVIS_584... 563_IAIARALVR_571... 489_IAIARALLR_497... 489_IAIARALLR_497... 489_VAIARALLR_497... 486_LSIARIFLN_494... ...612_GSHSELMKK_620... ...612_GSHSELMKK_620... ...609_GSHSELMKK_617... ...609_GSHSELIKK_617... ...612_GSHGELMKK_620... ...612_GNHRELMKK_620... ...610_GSHNELMKK_618... ...610_GNHDELMKE_618... ...621_GSHSELLRD_629... ...587_GSHDELIKD_595... ...605_GTHFDLVQR_613... ...608_GSHSELLKD_616... ...647_GSHNELLDL_655... ...634_GDHRALMAQ_642... ...560_GTHNDLLEH_568... ...560_GTHSELLAQ_568... ...560_GRHADLLAQ_568... ...557_GTHRELIAK_565... 630_MQTSGSQIQ_638... 630_MQTSGSQIQ_638... 627_MQTAGSQIL_635... 627_MQTSGSQIL_635... 630_TQISGSQIQ_638... 630_MQTSGNQTQ_638... 628_MQTSGNQIQ_636... 628_MQTAGNEVE_636... 640_LQEDTKQTE_648... 620_SEVSTSRLK_628... 624_LQEMHQPPP_632... 627_LQEVNKESK_635... 666_QKLSGGEKD_674... 652_AQTFTDAVD_660... 578_MQFGQ----_582... 578_MQFGQ----_582... 578_IQFGE----_582... 575_IQNL-----_578... 807_KNSTGALST_815... 807_KNSTGALST_815... 804_KNSTGALST_812... 806_KNSTGALST_814... 804_KNSTGALST_812... 809_KNSTGALST_817... 806_KNSTGALST_814... 808_KNTTGALTT_816... 825_ENSSGAIGA_833... 797_SHSSGSLGA_805... 835_ENSSGALGA_843... 822_EHSSGAIGA_830... 891_ENTVGAITT_899... 849_QNASGKIST_857... 118_KQSTGTLLS_126... 118_KQSTGTLLS_126... 118_QESTGGLLS_126... 114_NNQVGQVIS_122... 855_QLTLLLLAV_863.... 855_QLTLLLLAV_863.... 852_QLTLLLLSV_860.... 854_QLTLLLLSV_862.... 852_QLTLLLLSV_860.... 857_QLTLLLLVV_865.... 854_QLTLLLLSV_862.... 856_QLTLLLLAI_864.... 873_QLAFIVLAM_881.... 845_KLTLTIMCP_853.... 883_QLALLVLAL_891.... 870_QLALVILVL_878.... 939_KLGLVTLST_947... 897_QMALLIIAI_905.... 166_QLSIILIVL_174.... 166_QLSIILVVL_174.... 166_QLSLVLIVV_174.... 162_KLTLAALFI_170.... 944_SQAFMYFSY_952... 944_SQAFMYFSY_952... 941_SQAFMYFSY_949... 943_SQAFMYFSY_951... 941_SQAFMYFSY_949... 946_SQAFMYFSY_954... 943_SQAFMYFSY_951... 945_TQAMMYFSY_953... 962_SFFVLFSSY_970... 940_SYLMVYLTY_948... 972_SNFVLFGSY_980... 959_SFFLLFSVY_967... 1028_AQGVTFLIN_1036.. 986_ASSVLYLLN_994... 255_IQLIASLAL_263... 255_IQLIASLAL_263... 255_IQMIASLAL_263... 251_INTVTDIGP_259... Hs_MDR3 Pt_MDR3 Mm_MDR3 Rn_MDR3 Bt_MDR3 Cf_MDR3 Md_MDR3 Hs_MDR1 At_MDR Os_MDR Sm_MDR Ptr_MDR Sp_MDR Ce_P-gly Esch-coli_Msba Salm-typh_Msba Vibrio-ch_Msba Staph-au_Sav1866 Hs_MDR3 Pt_MDR3 Mm_MDR3 Rn_MDR3 Bt_MDR3 Cf_MDR3 Md_MDR3 Hs_MDR1 At_MDR Os_MDR Sm_MDR Ptr_MDR Sp_MDR Ce_P-gly Esch-coli_Msba Salm-typh_Msba Vibrio-ch_Msba Staph-au_Sav1866 Fig. 2 Multiple sequence alignment of 18 ABC proteins concerning the amino acid sequences around the 12 ABCB4 missense mutations identified in this study. Login to comment 99 ABCB4 p.Arg590Gln ABCB4 p.Thr175Ala ABCB4 p.Ser320Phe ABCB4 p.Ala511Thr ABCB4 p.Leu73Val ABCB4 p.Arg545Cys ABCB4 p.Asn510Ser ABCB4 p.Glu616Lys ABCB4 p.Gly811Arg ABCB4 p.Leu859Trp ABCB4 p.Gly634Glu ABCB4 p.Met948Ile When the 19 patients affected by PBC, AIH, or OS, in whom PFH-CLD was among the enrollment criteria, were excluded from the analysis, the S320F L859W L73V M948I N-ter T175A G811R R545C A511T N510S R590Q E616K G634E C-ter Fig. 3 Ribbon representation of the three-dimensional structure of human MDR3. Login to comment 139 ABCB4 p.Arg590Gln ABCB4 p.Ala511Thr ABCB4 p.Arg159* ABCB4 p.Gly634Glu Sex Main diagnosis Age at onset (years) Heterozygous mutation Radical mutationc Concomitant cholangiopathy Notes 20 M PSC 47 p.(G634E) No 39 M PSC 27 p.(R159X) Yes JC 40 M PSC 30 p.(R590Q) Yes JC 24a,b F PSC 23 p.(A511T) ? Login to comment 140 ABCB4 p.Asn510Ser p.(N510S) Yes ICP/IBD OLT 8a,b F PSC 34 p.(E616 K) ? Login to comment 141 ABCB4 p.Arg590Gln ABCB4 p.Arg590Gln ABCB4 p.Arg590Gln ABCB4 p.Thr175Ala ABCB4 p.Ser320Phe ABCB4 p.Ser320Phe ABCB4 p.Leu73Val ABCB4 p.Arg545Cys ABCB4 p.Arg545Cys ABCB4 p.Gly811Arg ABCB4 p.Gln1181* p.(S320F) Yes JC/HIC 16 F PSC 55 p.(R590Q) Yes 7 M ICC 16 p.(R545C) Yes JC Father of patient 72 18a,b M ICC 34 p.(S849YfsX24) Yes JC Family history of JC 49 F ICC 32 p.(G811R) Yes ICP/JC Family history of JC 72 F ICC 12 p.(R545C) Yes ICP/JC Daughter of patient 72 68 F PBC 31 p.(T175A) No ICP 73a F PBC 58 p.(R590Q) Yes JC 75 F PBC 64 p.(L73V) No JC 38 M JC 18 p.(S320F) No 55 M JC 26 p.(Q1181X) Yes 81 F JC 39 p.(R590Q) ? Login to comment 142 ABCB4 p.Ser320Phe ABCB4 p.Leu859Trp ABCB4 p.Met948Ile p.(M948I) Yes 48 F ICP 37 p.(L859W) No JC 88 F ICP 27 p.(S320F) No HIC PSC primary sclerosing cholangitis, ICC idiopathic chronic cholestasis, PBC primary biliary cirrhosis, JC juvenile cholelithiasis, ICP intrahepatic cholestasis of pregnancy, IBD inflammatory bowel disease, HIC hormone-induced cholestasis, OLT orthotopic liver transplantation a With cirrhosis b With major complications of portal hypertension c Radical mutation is considered highly deleterious for protein function (see ''Methods``) associated with cholesterol increase [11]. Login to comment