>gnl|CDD|176463 cd01359, Argininosuccinate_lyase, Argininosuccinate lyase (argininosuccinase, ASAL). This group contains ASAL and related proteins. It is a member of the Lyase class I family. Members of this family for the most part catalyze similar beta-elimination reactions in which a C-N or C-O bond is cleaved with the release of fumarate as one of the products. These proteins are active as tetramers. The four active sites of the homotetrameric enzyme are each formed by residues from three different subunits. ASAL is a cytosolic enzyme which catalyzes the reversible breakdown of argininosuccinate to arginine and fumarate during arginine biosynthesis. In ureotelic species ASAL also catalyzes a reaction involved in the production of urea. Included in this group are the major soluble avian eye lens proteins from duck, delta 1 and delta 2 crystallin. Of these two isoforms only delta 2 has retained ASAL activity. These crystallins may have evolved by, gene recruitment of ASAL followed by gene duplication. In humans, mutations in ASAL result in the autosomal recessive disorder argininosuccinic aciduria. Length = 435

Score = 674 bits (1742), Expect = 0.0 Identities = 247/435 (56%), Positives = 317/435 (72%) Query: 32 SIDFDKKLFEQDILGSKVHTTMLAKQGIISSEEAQKIIEGLKVIRAEIVDGSFVFSRDLE 91 SI FD++LFE+DI GS H MLA+QGI++ EEA KI+ GL IRAEI G+F + E Sbjct: 1 SISFDRRLFEEDIAGSIAHAVMLAEQGILTEEEAAKILAGLAKIRAEIEAGAFELDPEDE 60 Query: 92 DIHMNIEARLTSLIGSIAGKMHTARSRNDQVALDLRLWIKEKTLEITNDLKKLLTILLDK 151 DIHM IE RL IG + GK+HT RSRNDQVA DLRL++++ LE+ L L LLD+ Sbjct: 61 DIHMAIERRLIERIGDVGGKLHTGRSRNDQVATDLRLYLRDALLELLELLLDLQRALLDR 120 Query: 152 AEEHHNTIMPGFTHLQTAQPVTFGHHCMAYVEMFGRDISRFFDSIERLDECPLGAAALAG 211 AEEH +TIMPG+THLQ AQP+TFGH+ +AY EM RD+ R D+ +R++ PLGA ALAG Sbjct: 121 AEEHADTIMPGYTHLQRAQPITFGHYLLAYAEMLERDLERLADAYKRVNVSPLGAGALAG 180 Query: 212 TSFPIDRHFTAKELGFREPTRNSIDSVSDRDFILECLSHSAICAMHMSRLAEEIILWSTP 271 T+FPIDR TA+ LGF PT NS+D+VSDRDF+LE LS +A+ +H+SRLAE++ILWST Sbjct: 181 TTFPIDRERTAELLGFDGPTENSLDAVSDRDFVLEFLSAAALLMVHLSRLAEDLILWSTQ 240 Query: 272 QFNFVRLSDAFSTGSSIMPQKRNPDGAELVRAKTGRINGALLSLLTIMKGLPLAYSKDMQ 331 +F FV L DA+STGSSIMPQK+NPD EL+R K GR+ GAL LLT +KGLPLAY+KD+Q Sbjct: 241 EFGFVELPDAYSTGSSIMPQKKNPDVLELIRGKAGRVIGALAGLLTTLKGLPLAYNKDLQ 300 Query: 332 EDKEPVFDALETLQIIILAISAMIEDLTVNKDRLQEAATKSHSTATDLADWLVSHAGLPF 391 EDKEP+FDA++TL + ++ +I LTVN +R++EAA STATDLAD+LV G+PF Sbjct: 301 EDKEPLFDAVDTLIASLRLLTGVISTLTVNPERMREAAEAGFSTATDLADYLVREKGVPF 360 Query: 392 REAHYITGCTVSLAEKNQCELAKLPLAMLQQISPVITSAVYDILKVESSISSRKSFGGTC 451 REAH+I G V LAE+ +L+ L LA LQ ISP+ V + L E+S+ R S+GGT Sbjct: 361 REAHHIVGRAVRLAEEKGKDLSDLTLAELQAISPLFEEDVREALDPENSVERRTSYGGTA 420 Query: 452 AAEVLKQVTYWRNRI 466 AEV +Q+ R + Sbjct: 421 PAEVREQIARARALL 435

RPSBLAST alignment for GI: 254780370 and conserved domain: cd01359