2HP3A

Crystal structure of iminodisuccinate epimerase
Total Genus 170
Loading diagram...

The genus trace: a function that shows values of genus (vertical axis) for subchains spanned between the first residue, and all other residues (shown on horizontal axis). The number of the latter residue and the genus of a given subchain are shown interactively.

Total Genus
170
sequence length
446
structure length
446
Chain Sequence
MFTTKLAEKVVSAWKAKISQPALKAAQDGVIDTVAAALGGVTEHSVQVALKYVAATGGSGDSKLWGVNQRSNMFDAAFVNGMAAHAIDFDDSFPVMRGHPSSSLVPAIFAVGEHVGANGHNCLKSYVLGIEVVATLGRAVGKGHYLAGWHPTSTLGVFGATTAAALLLGADEEQLRNAWGIAASNSCGIIKNFGTMTKPMHTGSAARNGVLSAWLSMQSFTGCQTVFDDAEGILAMYGAQPGPELFNAMQKFGTPWAIIAPGLYKKSWPSCYANHKPLAGLFAIMKEHGLTGQDISHVDVGFLPGVEKPLLYMDPRTTEEAKFSIEANIGAALLDGEVSLASFEIEHLDRPAMRAAMKKVTRFDMPSETTFSGTTGYTDIVVHTADGKIERRIEATPGSLEDPMDDAHLERKFKDCTAWMPFGESGLLFDRLRSLTADQGIKTVQP
Loading diagram...

The genus matrix. At position (x,y) a genus value for a subchain spanned between x’th and y’th residue is shown. Values of the genus are represented by color, according to the scale given on the right.

Structure visualization

After clicking on a point (x,y) in the genus matrix above, a subchain from x to y is shown in color.

Chord Diagram
{{ tooltip.sname }} connected with {{ tooltip.tname }} : {{qFormat(tooltip.svalue) }}
molecule tags Isomerase
source organism Agrobacterium tumefaciens
publication title Three-dimensional Structure of Iminodisuccinate Epimerase Defines the Fold of the MmgE/PrpD Protein Family.
pubmed doi rcsb
molecule keywords IDS-epimerase
total genus 170
structure length 446
sequence length 446
chains with identical sequence B
ec nomenclature
pdb deposition date 2006-07-17

pfam database annotations

chain Pfam Accession Code Pfam Family Identifier Pfam Description
A PF03972 MmgE_PrpD MmgE/PrpD family
Image from the rcsb pdb (www.rcsb.org)
cath code
ClassArchitectureTopologyHomologyDomain
1.10.4100.10 Mainly Alpha Orthogonal Bundle 2-methylcitrate dehydratase PrpD 2-methylcitrate dehydratase PrpD 2hp3A01
3.30.1330.120 Alpha Beta 2-Layer Sandwich 60s Ribosomal Protein L30; Chain: A; 2-methylcitrate dehydratase PrpD 2hp3A02
2HP0B 2HP3A 2HP0A 1SZQA
chains in the Genus database with same CATH superfamily
4ZHYB 5CA0B 4O2AA 1N8RH 3VOAA 3UT5B 5FNVA 5EWRA 5CA1B 1YQNA 4NUTA 4EB6B 3DDNA 1VQKF 1VQ6F 4DXDA 2VAPA 1SA0B 3U0OA 1M90H 1ZWZA 4X1YB 1KD1H 4I4TA 2CHSA 5HY0A 1RLGA 3P4EA 1W581 4O2BB 3KHNA 3JAKA 3RYHB 3OBYA 3C9RA 1PXWA 1RLUA 5EZYA 2CW4A 1FNKA 1GX1A 3GYQA 2HS4A 3HKDA 5J2TA 4BVSA 1T0KB 3P10A 3T80A 4DRXA 3E20B 3C9SA 2OHWA 1CLIA 3L7QA 4RHAA 3HKBB 3CXCF 2H8CA 1IPAA 5B8FA 4KWEA 3ESJA 5HXUA 3HKEA 5FLXM 3J81M 1UI9A 3JATB 3JALA 1ODEA 3MDOA 5JVDB 3TD5A 2QEXF 5HP7A 3M4SA 3CC4F 1IV4A 1TUBB 1QVFF 4ZOLB 2VAWA 4O4HA 2PHNA 4O2AB 3S02A 2Z01A 3C9UA 4TV9A 5FNVB 1H7MA 3IR9A 1TVKA 5KX5A 5GANK 2H6LA 5LP6B 4HNAA 1YJ9F 2AIZP 3LWPC 3JAWA 1VQVA 5IJ0B 4BT3A 3FD6A 3S0HA 1PF5A 5KMGA 2HP3A 5FJ4C 2HS3A 2H8EA 2JNBA 3FPIA 5EIBC 3I3FA 1RA4A 2EWCA 3Q8HA 3VYTC 4O4JA 4BW0B 1W42A 3JAKB 3JARB 3K12A 5EZYB 3VIUA 4PWTA 4IHJA 3ZO8A 2YXZA 3HKDB 5J2TB 4TZZA 5C8YA 2OTMA 3D54A 4DRXB 4ZHWA 3CD6F 3ON1A 2HRYA 1SZQA 1ONIA 1JFFA 4IIJB 2IG8A 3NK7A 1X7PA 3HKEB 3CCUF 3JALB 3RA6A 4YJ2A 3CCSF 3IEQA 3KIZA 3O85A 3WGNA 4C8EA 4EI8A 5A2QM 3N2GA 1KNKA 3VTIC 1KNJA 3CCJF 1COMA 5GAPK 2GLZA 2IAFA 1GO0A 1NQ3A 1QD9A 2HVYD 4O4HB 4LNUB 4TV9B 4C82A 5LOVB 1OFUA 5LA6A 5GIPC 5KX5B 3TD4A 4I55B 3N4YA 2CZWA 3NK6A 4HNAB 3S0YA 4U3JA 2ALEA 4G88A 5HY2A 3JAWB 2VGNA 1FFXA 3QTYA 1S72F 3LWVC 3HTNA 5CB4A 3P0ZA 3SIVA 1U40A 3FD5A 5ITZA 2HQSC 1W5EA 2ZF8A 2VXYA 1W55A 3F0FA 5MN4A 2QA4F 4IHJB 3CYQA 5JQGA 3K2XA 3VMFB 2HS0A 3EORA 5GONA 3LWRC 3QUWA 1W59A 2P6YA 4TV8B 2W8BC 4X1IA 3NVKE 5GIOC 1M1KH 4O4IA 2KG4A 3JASA 2ZOVA 2L26A 1Q86H 1CN7A 2UYJA 2HP0A 4YJ2B 4O4LA 1YJNF 1DT9A 3KJJA 1W5FA 3OONA 3OW2F 1VQNF 5IJ9A 2RB9A 4ZK7A 1VQOF 1YJWF 2N48A 3N2GB 3ZP4A 3RYIB 2BO1A 3WPWA 1QU9A 4WBNA 4BT4A 3VI6A 2CVLA 1NMUB 3VYUC 1JN1A 2LBXA 4C4WC 5HY1A 4EI7A 3VO8A 3CCMF 1K8AH 3C8LA 3MCQA 1VQLF 5LA6B 3N4ZA 4U3JB 4I50B 4R40B 3LFOA 3CB2A 4BVRA 2RHJA 5G4VC 1SDSA 1IV1A 5J2UA 5CB4B 1W57A 1W5AA 4G4ZA 3HJWC 3KJKA 5LYJA 3I55F 1W40A 3N2KA 1GO1A 3OBWA 3RYCA 4NWOB 5LXTA 3WJRA 2BTQB 2I6RA 5HWEA 3WPXA 3HAXD 3RE3A 5BMVA 2UYKA 3WJQA 3WGJA 2QI2A 2ZVZA 3WGMA 5JCOA 4BY9D 4X1IB 4ZHQA 2Z1FA 3MBMA 4O4IB 3CCLF 1QVGF 4I4TB 2HP0B 3F6MA 3VYSC 4O4LB 3IMPA 5IJ9B 2RHLA 2G9IA 3RYFA 4LCKA 2Q1YA 4BT7A 3CG6A 2CSLA 1YHQF 4TUYA 4BT2A 3IKEA 1Q81H 3C9TA 3CPWF 4RQOA 5AVMA 1T0AA 2R751 5EYPA 3G6EF 2ZODA 1Z5VA 3G4SF 3MCAB 3F0EA 2K1SA 3NVIB 2RHOA 1Q8RA 3JAMM 3WGLA 2AIFA 1RQ2A 3UT5A 5J2UB 2Z1EA 1IV3A 3F0DA 1U3LA 3QHDA 4C81A 3S03A 3CCEF 1X52A 3V4DA 2RHHA 2UYPA 1CK2A 1VQPF 4BT6A 1Z5WA 5LXTB 1SA0A 2IQQA 1W2BF 1TVKB 5BMVB 2GZLA 3FBAA 1J7HA 4B45A 3JVHA 3CCVF 3HKCA 5KMGB 1U43A 1YI2F 2BTUA 3R0PA 4C8GA 1XBIA 4YJ3A 4O4JB 1VQ8F 1KQSF 5MN6A 1JJ2F 3GTZA 4XCQA 3CCRF 2LCAA 2Z1UA 5JCOC 3ELCA 1FSZA 1OAPA 2LBTA 3G71F 4X3LA 1VQ9F 2HRUA 3BYQA 3CPQA 3JATA 5C8YB 3CC7F 1JD1A 2WALA 3HWUA 5HY4A 3D01A 3S0WA 4FFBA 2UYNA 5JVDA 1W5BA 2MQEA 1JFFB 3LDTA 3LYBA 4ZI7A 4ZOLA 1VH8A 3RA5A 2YYEA 5HP8A 4G4WA 3ZP7A 2BTOA 2QTPA 1NJIH 5EO3A 4G4YA 3SIUA 1XHOA 5MN5A 1XV2A 5IYZA 5LP6A 5GINC 3IKFA 4BVQA 3ZOPA 3CMAF 2VAMA 5IJ0A 1W3EX 1E7KA 3V7EA 2V9YA 3E22A 5EAZA 3VCZA 4B46A 3J80M 3CCQF 3M84A 2GVIA 1FFXB 5EIBD 2PMPA 2Z1TA 3LMEA 1GZ0A 3HKCB 1VQ4F 3JARA 3TD3A 4BT5A 3B6NA 4YJ3B 3LWQC 4B62A 5ITZB 5EB1B 1QAHA 3D00A 2NMUA 4ERHA 3J7AR 1VQ7F 3KE1A 4IIJA 2OZBA 5JQGB 3IEWA 2KTVA 3E1YA 2DT4A 5JH7A 5GONB 2FC3A 4FFBB 1VQ5F 2UYNB 1KC8H 3CMEF 2B33A 2VGMA 1UFYA 3JCMM 3LWOC 3JASB 1U3PA 4ZI7B 4X20A 3CC2F 1RQ7A 3AGKA 3WJPA 1Q7YH 3PAFA 4U39A 1R1MA 3CYPB 4LNUA 5G4UC 3I56F 3WGKA 3F0GA 5LOVA 1YITF 4X1KA 2KGWA 4I55A 5IYZB 4WBNB 3DC2A 4F6RA 1VQMF 4B5CA 1K9MH 1DBFA 1YIJF 1X25A 3S06A 2UZHA 2KTUA 3E22B 3NMUC 1XRGA 3MQWA 3I7TA 5LP6C 4ZHVA 3V7QA 1VHAA 5CA0A 2FGYA 4X3MA 2ZAUA 1Q82H 1X7OA 5LYJB 1VK3A 4EI9A 3GHZA 2AMTA 5CA1A 1JY8A 3N2KB 1H47A 4EB6A 4TV8A 3RYCB 4E6EA 1YGYA 2R6R1 2OTLF 4X1YA 3VOBA 5JH7B 4O2BA 2I6DA 4M8IA 3RYHA 1IV2A 3RYIA 4ZHQB 1K73H 1FNJA 3K0TA 4X20B 2HX0A 5EB0A 4G4VA 3RYFB 1H48A 2DYYA 3WXMB 3HKBA 5HXZA 4TUYB 4X1KB 5DCVA 3ERNA 5IT9M 4I50A 4F6RB 4NQ3A 5EYPB 2OTJF 2Q1XA 3FFMA 4C8IA 2F9ZC 2LBWA 3PLAC 1TUBA 1W41A 2CWJA 3K14A 3V3TA 2ZVYA 2CHTA 4BVTA 4G4XA 3M1XA
chains in the Genus database with same CATH topology
2HP0B 2HP3A 2HP0A 1SZQA
chains in the Genus database with same CATH homology


 
#chains in the Genus database with same CATH superfamily
 2HP0 B;  2HP3 A;  2HP0 A;  1SZQ A; 
#chains in the Genus database with same CATH topology
 4ZHY B;  5CA0 B;  4O2A A;  1N8R H;  3VOA A;  3UT5 B;  5FNV A;  5EWR A;  5CA1 B;  1YQN A;  4NUT A;  4EB6 B;  3DDN A;  1VQK F;  1VQ6 F;  4DXD A;  2VAP A;  1SA0 B;  3U0O A;  1M90 H;  1ZWZ A;  4X1Y B;  1KD1 H;  4I4T A;  2CHS A;  5HY0 A;  1RLG A;  3P4E A;  1W58 1;  4O2B B;  3KHN A;  3JAK A;  3RYH B;  3OBY A;  3C9R A;  1PXW A;  1RLU A;  5EZY A;  2CW4 A;  1FNK A;  1GX1 A;  3GYQ A;  2HS4 A;  3HKD A;  5J2T A;  4BVS A;  1T0K B;  3P10 A;  3T80 A;  4DRX A;  3E20 B;  3C9S A;  2OHW A;  1CLI A;  3L7Q A;  4RHA A;  3HKB B;  3CXC F;  2H8C A;  1IPA A;  5B8F A;  4KWE A;  3ESJ A;  5HXU A;  3HKE A;  5FLX M;  3J81 M;  1UI9 A;  3JAT B;  3JAL A;  1ODE A;  3MDO A;  5JVD B;  3TD5 A;  2QEX F;  5HP7 A;  3M4S A;  3CC4 F;  1IV4 A;  1TUB B;  1QVF F;  4ZOL B;  2VAW A;  4O4H A;  2PHN A;  4O2A B;  3S02 A;  2Z01 A;  3C9U A;  4TV9 A;  5FNV B;  1H7M A;  3IR9 A;  1TVK A;  5KX5 A;  5GAN K;  2H6L A;  5LP6 B;  4HNA A;  1YJ9 F;  2AIZ P;  3LWP C;  3JAW A;  1VQV A;  5IJ0 B;  4BT3 A;  3FD6 A;  3S0H A;  1PF5 A;  5KMG A;  2HP3 A;  5FJ4 C;  2HS3 A;  2H8E A;  2JNB A;  3FPI A;  5EIB C;  3I3F A;  1RA4 A;  2EWC A;  3Q8H A;  3VYT C;  4O4J A;  4BW0 B;  1W42 A;  3JAK B;  3JAR B;  3K12 A;  5EZY B;  3VIU A;  4PWT A;  4IHJ A;  3ZO8 A;  2YXZ A;  3HKD B;  5J2T B;  4TZZ A;  5C8Y A;  2OTM A;  3D54 A;  4DRX B;  4ZHW A;  3CD6 F;  3ON1 A;  2HRY A;  1SZQ A;  1ONI A;  1JFF A;  4IIJ B;  2IG8 A;  3NK7 A;  1X7P A;  3HKE B;  3CCU F;  3JAL B;  3RA6 A;  4YJ2 A;  3CCS F;  3IEQ A;  3KIZ A;  3O85 A;  3WGN A;  4C8E A;  4EI8 A;  5A2Q M;  3N2G A;  1KNK A;  3VTI C;  1KNJ A;  3CCJ F;  1COM A;  5GAP K;  2GLZ A;  2IAF A;  1GO0 A;  1NQ3 A;  1QD9 A;  2HVY D;  4O4H B;  4LNU B;  4TV9 B;  4C82 A;  5LOV B;  1OFU A;  5LA6 A;  5GIP C;  5KX5 B;  3TD4 A;  4I55 B;  3N4Y A;  2CZW A;  3NK6 A;  4HNA B;  3S0Y A;  4U3J A;  2ALE A;  4G88 A;  5HY2 A;  3JAW B;  2VGN A;  1FFX A;  3QTY A;  1S72 F;  3LWV C;  3HTN A;  5CB4 A;  3P0Z A;  3SIV A;  1U40 A;  3FD5 A;  5ITZ A;  2HQS C;  1W5E A;  2ZF8 A;  2VXY A;  1W55 A;  3F0F A;  5MN4 A;  2QA4 F;  4IHJ B;  3CYQ A;  5JQG A;  3K2X A;  3VMF B;  2HS0 A;  3EOR A;  5GON A;  3LWR C;  3QUW A;  1W59 A;  2P6Y A;  4TV8 B;  2W8B C;  4X1I A;  3NVK E;  5GIO C;  1M1K H;  4O4I A;  2KG4 A;  3JAS A;  2ZOV A;  2L26 A;  1Q86 H;  1CN7 A;  2UYJ A;  2HP0 A;  4YJ2 B;  4O4L A;  1YJN F;  1DT9 A;  3KJJ A;  1W5F A;  3OON A;  3OW2 F;  1VQN F;  5IJ9 A;  2RB9 A;  4ZK7 A;  1VQO F;  1YJW F;  2N48 A;  3N2G B;  3ZP4 A;  3RYI B;  2BO1 A;  3WPW A;  1QU9 A;  4WBN A;  4BT4 A;  3VI6 A;  2CVL A;  1NMU B;  3VYU C;  1JN1 A;  2LBX A;  4C4W C;  5HY1 A;  4EI7 A;  3VO8 A;  3CCM F;  1K8A H;  3C8L A;  3MCQ A;  1VQL F;  5LA6 B;  3N4Z A;  4U3J B;  4I50 B;  4R40 B;  3LFO A;  3CB2 A;  4BVR A;  2RHJ A;  5G4V C;  1SDS A;  1IV1 A;  5J2U A;  5CB4 B;  1W57 A;  1W5A A;  4G4Z A;  3HJW C;  3KJK A;  5LYJ A;  3I55 F;  1W40 A;  3N2K A;  1GO1 A;  3OBW A;  3RYC A;  4NWO B;  5LXT A;  3WJR A;  2BTQ B;  2I6R A;  5HWE A;  3WPX A;  3HAX D;  3RE3 A;  5BMV A;  2UYK A;  3WJQ A;  3WGJ A;  2QI2 A;  2ZVZ A;  3WGM A;  5JCO A;  4BY9 D;  4X1I B;  4ZHQ A;  2Z1F A;  3MBM A;  4O4I B;  3CCL F;  1QVG F;  4I4T B;  2HP0 B;  3F6M A;  3VYS C;  4O4L B;  3IMP A;  5IJ9 B;  2RHL A;  2G9I A;  3RYF A;  4LCK A;  2Q1Y A;  4BT7 A;  3CG6 A;  2CSL A;  1YHQ F;  4TUY A;  4BT2 A;  3IKE A;  1Q81 H;  3C9T A;  3CPW F;  4RQO A;  5AVM A;  1T0A A;  2R75 1;  5EYP A;  3G6E F;  2ZOD A;  1Z5V A;  3G4S F;  3MCA B;  3F0E A;  2K1S A;  3NVI B;  2RHO A;  1Q8R A;  3JAM M;  3WGL A;  2AIF A;  1RQ2 A;  3UT5 A;  5J2U B;  2Z1E A;  1IV3 A;  3F0D A;  1U3L A;  3QHD A;  4C81 A;  3S03 A;  3CCE F;  1X52 A;  3V4D A;  2RHH A;  2UYP A;  1CK2 A;  1VQP F;  4BT6 A;  1Z5W A;  5LXT B;  1SA0 A;  2IQQ A;  1W2B F;  1TVK B;  5BMV B;  2GZL A;  3FBA A;  1J7H A;  4B45 A;  3JVH A;  3CCV F;  3HKC A;  5KMG B;  1U43 A;  1YI2 F;  2BTU A;  3R0P A;  4C8G A;  1XBI A;  4YJ3 A;  4O4J B;  1VQ8 F;  1KQS F;  5MN6 A;  1JJ2 F;  3GTZ A;  4XCQ A;  3CCR F;  2LCA A;  2Z1U A;  5JCO C;  3ELC A;  1FSZ A;  1OAP A;  2LBT A;  3G71 F;  4X3L A;  1VQ9 F;  2HRU A;  3BYQ A;  3CPQ A;  3JAT A;  5C8Y B;  3CC7 F;  1JD1 A;  2WAL A;  3HWU A;  5HY4 A;  3D01 A;  3S0W A;  4FFB A;  2UYN A;  5JVD A;  1W5B A;  2MQE A;  1JFF B;  3LDT A;  3LYB A;  4ZI7 A;  4ZOL A;  1VH8 A;  3RA5 A;  2YYE A;  5HP8 A;  4G4W A;  3ZP7 A;  2BTO A;  2QTP A;  1NJI H;  5EO3 A;  4G4Y A;  3SIU A;  1XHO A;  5MN5 A;  1XV2 A;  5IYZ A;  5LP6 A;  5GIN C;  3IKF A;  4BVQ A;  3ZOP A;  3CMA F;  2VAM A;  5IJ0 A;  1W3E X;  1E7K A;  3V7E A;  2V9Y A;  3E22 A;  5EAZ A;  3VCZ A;  4B46 A;  3J80 M;  3CCQ F;  3M84 A;  2GVI A;  1FFX B;  5EIB D;  2PMP A;  2Z1T A;  3LME A;  1GZ0 A;  3HKC B;  1VQ4 F;  3JAR A;  3TD3 A;  4BT5 A;  3B6N A;  4YJ3 B;  3LWQ C;  4B62 A;  5ITZ B;  5EB1 B;  1QAH A;  3D00 A;  2NMU A;  4ERH A;  3J7A R;  1VQ7 F;  3KE1 A;  4IIJ A;  2OZB A;  5JQG B;  3IEW A;  2KTV A;  3E1Y A;  2DT4 A;  5JH7 A;  5GON B;  2FC3 A;  4FFB B;  1VQ5 F;  2UYN B;  1KC8 H;  3CME F;  2B33 A;  2VGM A;  1UFY A;  3JCM M;  3LWO C;  3JAS B;  1U3P A;  4ZI7 B;  4X20 A;  3CC2 F;  1RQ7 A;  3AGK A;  3WJP A;  1Q7Y H;  3PAF A;  4U39 A;  1R1M A;  3CYP B;  4LNU A;  5G4U C;  3I56 F;  3WGK A;  3F0G A;  5LOV A;  1YIT F;  4X1K A;  2KGW A;  4I55 A;  5IYZ B;  4WBN B;  3DC2 A;  4F6R A;  1VQM F;  4B5C A;  1K9M H;  1DBF A;  1YIJ F;  1X25 A;  3S06 A;  2UZH A;  2KTU A;  3E22 B;  3NMU C;  1XRG A;  3MQW A;  3I7T A;  5LP6 C;  4ZHV A;  3V7Q A;  1VHA A;  5CA0 A;  2FGY A;  4X3M A;  2ZAU A;  1Q82 H;  1X7O A;  5LYJ B;  1VK3 A;  4EI9 A;  3GHZ A;  2AMT A;  5CA1 A;  1JY8 A;  3N2K B;  1H47 A;  4EB6 A;  4TV8 A;  3RYC B;  4E6E A;  1YGY A;  2R6R 1;  2OTL F;  4X1Y A;  3VOB A;  5JH7 B;  4O2B A;  2I6D A;  4M8I A;  3RYH A;  1IV2 A;  3RYI A;  4ZHQ B;  1K73 H;  1FNJ A;  3K0T A;  4X20 B;  2HX0 A;  5EB0 A;  4G4V A;  3RYF B;  1H48 A;  2DYY A;  3WXM B;  3HKB A;  5HXZ A;  4TUY B;  4X1K B;  5DCV A;  3ERN A;  5IT9 M;  4I50 A;  4F6R B;  4NQ3 A;  5EYP B;  2OTJ F;  2Q1X A;  3FFM A;  4C8I A;  2F9Z C;  2LBW A;  3PLA C;  1TUB A;  1W41 A;  2CWJ A;  3K14 A;  3V3T A;  2ZVY A;  2CHT A;  4BVT A;  4G4X A;  3M1X A; 
#chains in the Genus database with same CATH homology
 2HP0 B;  2HP3 A;  2HP0 A;  1SZQ A; 
...loading similar chains, please wait...
similar chains in the Genus database (?% sequence similarity)
...loading similar chains, please wait...
similar chains in the pdb database (?% sequence similarity)

 
#similar chains in the Genus database (?% sequence similarity)
...loading similar chains, please wait...
#similar chains, but unknotted
...loading similar chains, please wait...
#similar chains in the pdb database (?% sequence similarity)
...loading similar chains, please wait...